CN218824947U - Objective lens adjusting device and microscope - Google Patents
Objective lens adjusting device and microscope Download PDFInfo
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- CN218824947U CN218824947U CN202223263061.6U CN202223263061U CN218824947U CN 218824947 U CN218824947 U CN 218824947U CN 202223263061 U CN202223263061 U CN 202223263061U CN 218824947 U CN218824947 U CN 218824947U
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Abstract
The application provides an objective lens adjusting device and a microscope, wherein the objective lens adjusting device comprises an objective lens switching assembly, a follow-up switching assembly, a first fixing piece and a focusing driving assembly; the servo switching assembly is fixedly connected with the objective lens switching assembly; the focusing driving assembly is fixedly connected with the first fixing piece and is in transmission connection with the follow-up switching assembly; the follow-up switching assembly is connected with the first fixing piece in a sliding mode along the focusing direction; under the driving action of the focusing driving assembly, the follow-up switching assembly can drive the objective lens switching assembly to move along the focusing direction relative to the first fixing piece. The application provides an objective adjusting device can realize that objective switches with focusing function's integration, focusing precision is high, and simple structure is compact.
Description
Technical Field
The application relates to the technical field of microscopes, in particular to an objective lens adjusting device and a microscope.
Background
In different application scenes of a microscope, objective lens switching operation and focusing operation are often required, and in the prior art, generally, the objective lens switching seat is rotationally driven to further realize the switching of the objective lens; in addition, the focusing mechanism in the prior art generally includes multiple intermediate transmission mechanisms, such as a spur gear transmission set, a worm gear transmission set, or a rack and pinion transmission set, and the multiple intermediate transmission mechanisms sequentially transmit the multiple intermediate transmission mechanisms, so as to drive the objective lens switching base along the focusing direction, thereby implementing the focusing function.
In the prior art, a focusing mechanism comprising multiple intermediate transmission mechanisms is complex in structure, large in size and low in focusing precision.
SUMMERY OF THE UTILITY MODEL
The application provides an objective adjusting device and a microscope, can realize the integration of objective switching and focusing function, and focusing precision is high, and simple structure and compactness.
On one hand, the application provides an objective lens adjusting device which comprises an objective lens switching assembly, a follow-up switching assembly, a first fixing piece and a focusing driving assembly;
the servo switching assembly is fixedly connected with the objective lens switching assembly;
the focusing driving assembly is fixedly connected with the first fixing piece and is in transmission connection with the servo switching assembly;
the follow-up switching assembly is connected with the first fixing piece in a sliding mode along the focusing direction;
under the driving action of the focusing driving assembly, the follow-up switching assembly can drive the objective lens switching assembly to move along the focusing direction relative to the first fixing piece.
Further, the focusing driving assembly comprises a focusing driving device and an adapter, and the focusing driving device is arranged between the adapter and the first fixing piece;
the focusing driving device is fixedly connected with the first fixing piece, the focusing driving device is in transmission connection with the adapter piece, and the adapter piece is fixedly connected with the follow-up adapter assembly.
Further, the objective lens adjusting device further comprises at least one elastic supporting element;
the elastic supporting element is arranged between the first fixing piece and the adapter piece, one end of the elastic supporting element is abutted against the first fixing piece, and the other end of the elastic supporting element is abutted against the adapter piece;
the elastic direction of the elastic supporting element is consistent with the focusing direction.
Furthermore, the objective lens adjusting device also comprises at least one guide piece, and the elastic supporting element is sleeved on the guide piece;
one of the first fixing piece and the adapter piece is provided with a guide piece fixing connection position, and the other one is provided with a guide piece moving containing position;
one end of the guide piece is fixedly connected to the guide piece fixed connection position, and the other end of the guide piece is accommodated on the guide piece movement accommodation position.
Further, the focusing driving device is a piezoelectric motor.
Further, the objective lens adjusting device further includes at least one first sliding guide and at least one second sliding guide;
the first sliding guide piece is fixedly connected with the first fixing piece, and the second sliding guide piece is fixedly connected with the follow-up switching assembly;
the first sliding guide is slidably connected to the second sliding guide in the focusing direction.
Further, the objective lens switching assembly comprises a second fixing piece, a direct-drive assembly and an objective lens switching seat;
the follow-up switching assembly is fixedly connected with the second fixing piece;
the direct-drive assembly is fixedly connected with the second fixing piece and is in driving connection with the objective lens switching seat;
and the objective lens switching seat is provided with a plurality of objective lens mounting positions.
Furthermore, the objective lens switching assembly further comprises a rotating positioning piece and a photoelectric detection assembly, wherein the rotating positioning piece is arranged in a sensing area of the photoelectric detection assembly;
the rotary positioning piece and the photoelectric detection assembly are alternatively in transmission connection with the direct drive assembly, and the other one of the rotary positioning piece and the photoelectric detection assembly is fixedly connected with the second fixing piece.
Furthermore, the objective lens adjusting device further comprises a control assembly, and the control assembly is electrically connected with the direct drive assembly and the photoelectric detection assembly respectively.
Furthermore, the fixed connecting surface of the first fixing piece is perpendicular to the focusing direction.
In another aspect, the present application provides a microscope including an objective lens adjusting device as described above.
The application provides a pair of objective adjusting device and microscope has following beneficial effect:
the objective lens adjusting device comprises an objective lens switching assembly, a follow-up switching assembly, a first fixing piece and a focusing driving assembly; the servo switching assembly is fixedly connected with the objective lens switching assembly; the focusing driving assembly is fixedly connected with the first fixing piece and is in transmission connection with the servo switching assembly; the follow-up switching assembly is connected with the first fixing piece in a sliding mode along the focusing direction; under the driving action of the focusing driving assembly, the servo switching assembly can drive the objective switching assembly to move relative to the first fixing piece along the focusing direction, so that the integration of objective switching and focusing functions can be realized, the focusing precision is high, and the structure is simple and compact.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an objective lens adjusting apparatus according to an embodiment of the present disclosure;
fig. 2 is an exploded schematic view of an objective lens adjusting device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a first fixing element, a first sliding guide element and a second sliding guide element according to an embodiment of the present disclosure;
fig. 4 is an exploded schematic structural diagram of a direct drive assembly, a rotary positioning element and a photoelectric detection assembly provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a direct drive assembly, a rotary positioning element, and a photoelectric detection assembly provided in an embodiment of the present application.
The following is a supplementary description of the drawings:
10-objective switching assembly; 11-a second fixture; 12-direct drive assembly; 13-objective lens switching seat; 131-objective mounting position; 14-a rotating positioning member; 15-a photodetecting component; 20-a follow-up adapter assembly; 21-a first adapter; 22-a second adaptor; 30-a first fixture; 40-a focus drive assembly; 41-focus drive means; 42-an adaptor; 50-a resilient support element; 60-a guide; 70-a first sliding guide; 80-a second sliding guide; 90-objective lens.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The technical solutions in the embodiments of the present application are described below with reference to fig. 1 to 5, and may be applied to application scenarios of microscopes.
Referring to fig. 1 and 2, an objective lens adjusting apparatus according to an embodiment of the present application includes an objective lens switching assembly 10, a follower adapter assembly 20, a first fixing member 30, and a focusing driving assembly 40; the follow-up adapter component 20 is fixedly connected with the objective lens switching component 10; the focusing driving assembly 40 is fixedly connected with the first fixing piece 30, and the focusing driving assembly 40 is in transmission connection with the follow-up adapter assembly 20; the follow-up adapter assembly 20 is connected with the first fixing piece 30 in a sliding mode along the focusing direction; under the driving action of the focusing driving assembly 40, the follower adapter assembly 20 can drive the objective lens switching assembly 10 to move in the focusing direction relative to the first fixing member 30.
In some embodiments, referring to fig. 1 and fig. 2, the objective lens adjusting device includes at least two follower adapter assemblies 20, and the follower adapter assemblies 20 are symmetrically disposed on two sides of the first fixing member 30, so that the first fixing member 30 and the follower adapter assemblies 20 can be reliably slidably connected in the focusing direction.
In some embodiments, referring to fig. 1 and fig. 2, the focusing driving assembly 40 can drive the follower adapter assembly 20 to move along the focusing direction, the follower adapter assembly 20 can drive the objective lens switching assembly 10 to move along the focusing direction, and the objective lens switching assembly 10 can drive the objective lens 90 to move along the focusing direction, so as to implement the focusing function of the objective lens adjusting device. Compared with the prior art, the objective lens adjusting device in the embodiment of the application does not need to be provided with multiple intermediate transmission mechanisms, such as a straight gear transmission set, a worm and gear transmission set or a gear and rack transmission set, so that the structure of the objective lens adjusting device can be simplified, the size of the objective lens adjusting device can be reduced, and the focusing precision can be improved.
In some embodiments, referring to fig. 1, the follower adapter 20, the first fixing member 30 and the focusing driving member 40 are disposed on the same side of the objective lens switching assembly 10 as the objective lens 90; the follow-up adapter assembly 20 is arranged between the focusing driving assembly 40 and the objective lens switching assembly 10; the first fixing member 30 is disposed in a space defined by the focusing driving assembly 40, the follower adapter assembly 20 and the objective lens switching assembly 10, so that the structure of the objective lens adjusting device can be further simplified, the size of the objective lens adjusting device can be further reduced, and the objective lens adjusting device is simple and compact in structure.
In some embodiments, referring to fig. 2, a plurality of objective lens mounting positions 131 are disposed on the objective lens switching assembly 10, and a plurality of objective lenses can be fixedly connected to the objective lens switching assembly 10 through the objective lens mounting positions 131; the objective lens switching assembly 10 is movable relative to the first fixture 30 to move one of the plurality of objective lens mounting locations 131 to a target position; with the objective lens fitted to the objective lens mounting position 131, the central axis of the objective lens moved to the target position is along the optical path projection direction. Thus, the objective lens switching function of the objective lens adjusting device is realized.
In the embodiment of the present application, please refer to fig. 1 and fig. 2, the focusing driving assembly 40 includes a focusing driving device 41 and an adaptor 42, the focusing driving device 41 is disposed between the adaptor 42 and the first fixing member 30; the focusing driving device 41 is fixedly connected with the first fixing member 30, the focusing driving device 41 is in transmission connection with the adapter 42, and the adapter 42 is fixedly connected with the follow-up adapter assembly 20.
Further, referring to fig. 1, the fixing connection surface of the adaptor 42 is parallel to the fixing connection surface of the first fixing member 30.
In some embodiments, referring to fig. 1, the focus driving device 41 abuts against the adaptor 42, and the focus driving device 41 can drive and support the adaptor 42, thereby cooperatively driving and supporting the follower adaptor assembly 20 and the objective lens switching assembly 10.
In some embodiments, the focus driving device 41 may be a telescopic driving device, and accordingly, the focus driving device 41 can move telescopically along the focusing direction; under the condition that the focusing driving device 41 moves in an extending manner along the focusing direction, the focusing driving device 41 can drive the adaptor 42, the follower adaptor assembly 20 and the objective lens switching assembly 10 to move in the extending direction of the focusing driving device 41; in the case where the focus drive device 41 moves in the contraction direction, the adaptor 42, the follower adaptor assembly 20, and the objective lens switching assembly 10 can move in the contraction direction of the focus drive device 41 by their own weight. Thus, the focusing function of the objective lens adjusting device is realized.
In some specific embodiments, the focusing driving device 41 may be a piezoelectric motor, and the piezoelectric motor is controlled to extend and retract by applying a preset voltage to the piezoelectric motor, so as to realize accurate regulation and control of the height of the piezoelectric motor along the focusing direction, and further accurately realize the focusing function of the objective lens adjusting device.
In the embodiment of the present application, please refer to fig. 2, the objective lens adjusting apparatus further includes at least one elastic supporting element 50; the elastic supporting element 50 is arranged between the first fixing piece 30 and the adaptor 42, one end of the elastic supporting element 50 is abutted against the first fixing piece 30, and the other end of the elastic supporting element 50 is abutted against the adaptor 42; the elastic direction of the elastic supporting member 50 coincides with the focusing direction.
In some embodiments, referring to fig. 1 and fig. 2, the objective lens adjusting device includes a plurality of elastic supporting elements 50, and the elastic supporting elements 50 are uniformly arranged on the peripheral side of the focusing driving device 41; the elastic supporting elements 50 are all in a compressed state, and the elastic supporting elements 50 can effectively assist in supporting the adaptor 42, the follower adaptor assembly 20 and the objective lens switching assembly 10, so as to effectively reduce the pressure applied on the focusing driving device 41 by the adaptor 42, the follower adaptor assembly 20 and the objective lens switching assembly 10, and effectively protect the focusing driving device 41.
In some embodiments, referring to fig. 2, the objective lens adjusting device includes four elastic support members 50, so as to effectively support the link 42, the follower adapter 20 and the objective lens switching assembly 10.
It should be noted that the number of the elastic supporting elements 50 is determined according to actual conditions, and the number of the elastic supporting elements 50 is not limited in the present application.
In the embodiment of the present application, please refer to fig. 2, the objective lens adjusting apparatus further includes at least one guiding element 60, and the elastic supporting element 50 is sleeved on the guiding element 60; the first fixing piece 30 and the adapter piece 42 are provided with a guide piece fixing connection position alternatively, and the other one is provided with a guide piece movement accommodating position; one end of the guide 60 is fixedly coupled to the guide fixedly coupling position, and the other end of the guide 60 is received in the guide movement receiving position.
In some embodiments, the number of the guide members 60 corresponds to the number of the elastic support members 50, and the guide members 60 can guide the movement of the corresponding elastic support members 50 in the focusing direction.
In some embodiments, a guide fixing connection position is disposed on a side of the first fixing member 30 facing the adaptor member 42, a guide movement accommodating position is correspondingly disposed on the adaptor member 42, one end of the guide 60 close to the first fixing member 30 is fixedly connected to the first fixing member 30 through the guide fixing connection position, and one end of the guide 60 close to the adaptor member 42 is accommodated in the guide movement accommodating position and is in a free state; in a case where the focus drive means 41 drives the adaptor 42 to move in the focus direction, one end of the guide 60 near the adaptor 42 is movable in the guide movement accommodating position.
In some embodiments, a guide fixing connection position is disposed on one side of the adaptor 42 facing the first fixing member 30, a guide movement accommodating position is correspondingly disposed on the first fixing member 30, one end of the guide 60 close to the adaptor 42 is fixedly connected to the adaptor 42 through the guide fixing connection position, and one end of the guide 60 close to the first fixing member 30 is accommodated in the guide movement accommodating position and is in a free state; in a case where the focus drive means 41 drives the adaptor 42 to move in the focusing direction, one end of the guide 60 close to the first fixing member 30 can move in the guide movement accommodating position.
In some embodiments, the guide member 60 may be a cylindrical guide member, and the guide member movement receiving position may be a clearance through hole having an inner diameter greater than an outer diameter of the guide member 60, such that the guide member 60 is capable of moving in the guide member movement receiving position.
In some embodiments, referring to fig. 2, the objective lens adjusting device includes four elastic supporting elements 50, and correspondingly, the objective lens adjusting device includes four guiding members 60, so that the guiding members 60 can guide the movement of the respective elastic supporting elements 50.
In the embodiment of the present application, please refer to fig. 2, the objective lens switching assembly 10 includes a second fixing member 11, a direct drive assembly 12 and an objective lens switching seat 13; the follow-up adapter assembly 20 is fixedly connected with the second fixing piece 11; the direct-drive assembly 12 is fixedly connected with the second fixing piece 11, and the direct-drive assembly 12 is in driving connection with the objective lens switching seat 13; the objective lens changer 13 is provided with a plurality of objective lens attachment positions 131.
In some embodiments, referring to fig. 1, the follow-up adapter 20 is fixedly connected to a side of the second fixing member 11 away from the objective lens 90, and the second fixing member 11 is disposed between the follow-up adapter 20 and the objective lens switching seat 13; the direct-drive assembly 12 can directly drive the objective lens switching seat 13 to move without arranging an intermediate transmission mechanism such as a gear transmission mechanism or a worm and gear transmission mechanism, so that transmission errors can be reduced, and the precision of driving the objective lens switching seat 13 is improved.
In some embodiments, referring to fig. 2, fig. 4 and fig. 5, the direct-drive assembly 12 includes a direct-drive fixed end and a direct-drive moving end, the direct-drive fixed end is fixedly connected to the second fixing member 11, and the direct-drive moving end is drivingly connected to the objective lens switching seat 13, so that the objective lens switching seat 13 can move relative to the second fixing member 11 in cooperation with the objective lens 90 under the driving of the direct-drive moving end.
In some specific embodiments, the direct-drive assembly 12 may be a direct-drive motor, and the direct-drive motor can directly drive the objective lens switching seat 13 to perform a rotational motion relative to the second fixing member 11, so that the objective lens switching seat 13 drives the plurality of objective lenses 90 to perform a rotational motion, so as to rotate one of the plurality of objective lenses 90 to a target position, so as to implement an objective lens switching function of the objective lens adjusting device.
In some embodiments, referring to fig. 2, five objective mounting locations 131 are disposed on the objective switching base 13, and accordingly, the objective switching base 13 can be simultaneously and fixedly connected with five objectives.
The number of the objective lens mounting positions 131 is determined according to actual conditions, and the number of the objective lens mounting positions 131 is not limited in the present application.
In the embodiment of the present application, referring to fig. 4 and fig. 5, the objective lens switching assembly 10 further includes a rotating positioning element 14 and a photoelectric detection assembly 15, wherein the rotating positioning element 14 is disposed in a sensing area of the photoelectric detection assembly 15; the rotary positioning member 14 and the photoelectric detection assembly 15 are alternatively in transmission connection with the direct drive assembly 12, and the other is fixedly connected with the second fixing member 11.
In the embodiment of the present application, the objective lens adjusting device further includes a control assembly, and the control assembly is electrically connected to the direct drive assembly 12 and the photoelectric detection assembly 15, respectively.
In some embodiments, the rotary positioning member 14 is in driving connection with the direct drive assembly 12, and the photoelectric detection assembly 15 is fixedly connected with the second fixing member 11.
In some embodiments, the photoelectric detection assembly 15 is in transmission connection with the direct drive assembly 12, and the rotary positioning member 14 is fixedly connected with the second fixing member 11.
In some embodiments, referring to fig. 5, the rotating positioning element 14 is in transmission connection with the direct-drive moving end, the photoelectric detection assembly 15 is fixedly connected with the direct-drive fixed end, and the objective lens switching seat 13 and the rotating positioning element 14 can cooperatively rotate under the driving action of the direct-drive moving end; the photoelectric detection assembly 15 can detect the rotation angle of the rotating positioning member 14 relative to the second fixing member 11, so as to accurately obtain the rotation angle of the objective lens switching seat 13 relative to the second fixing member 11.
In some embodiments, the control assembly can send a rotation control signal to the direct drive assembly 12, so that the direct drive assembly 12 can drive the objective lens switching seat 13 and the rotation positioning member 14 to perform a rotation motion of a preset angle, meanwhile, the photoelectric detection assembly 15 can continuously detect the rotation angle of the rotation positioning member 14 relative to the second fixing member 11, and feed back the detection result to the control assembly, based on the feedback of the photoelectric detection assembly 15, the control assembly can control the objective lens switching seat 13 to dynamically adjust the rotation angle, so that the objective lens switching seat 13 precisely rotates to the preset angle, and thus, the switching precision of the objective lens switching assembly 10 can be improved.
In some embodiments, referring to fig. 4 and 5, the rotating positioning element 14 may be a high-precision photoelectric encoder, and the high-precision photoelectric encoder is provided with a light-transmitting portion and a light-proof portion which are regularly arranged; the photoelectric detection assembly 15 comprises an emitting part and a receiving part, and a high-precision photoelectric code disc is arranged between the emitting part and the receiving part; in the process that the objective lens switching seat 13 rotates in cooperation with the high-precision photoelectric encoder, the optical signal emitted by the emitting part is regularly transmitted to the receiving part through the light-transmitting part, the receiving part outputs a corresponding electric signal to the control assembly based on the received optical signal, and the electric signal output by the receiving part can indicate the rotating angle of the rotating positioning part 14 relative to the second fixing part 11.
In the embodiment of the present application, the fixing connection surface of the first fixing member 30 is perpendicular to the focusing direction.
In some embodiments, referring to fig. 1, the fixing connection surface of the first fixing member 30 is perpendicular to the light transmission direction, i.e. perpendicular to the objective lens located in the light path projection direction, so as to ensure that the light is projected to the objective lens located in the light path projection direction.
Further, referring to fig. 1, the fixing connection surface of the first fixing member 30 is disposed obliquely with respect to the central axis of the direct drive assembly 12.
In the embodiment of the present application, please refer to fig. 1, the follow-up adapter assembly 20 includes a first adapter 21 and a second adapter 22, which are fixedly connected, wherein an end of the first adapter 21 away from the second adapter 22 is fixedly connected to the adapter 42, and an end of the second adapter 22 away from the first adapter 21 is fixedly connected to the second fixing member 11. In this way, under the driving action of the focusing driving device 41, the adaptor 42 can move in the focusing direction in cooperation with the first adaptor 21, the second adaptor 22, the second fixing member 11 and the objective lens switching base 13, so as to realize the focusing function of the objective lens adjusting device.
In the embodiment of the present application, referring to fig. 2 and 3, the objective lens adjusting device further includes at least one first sliding guide 70 and at least one second sliding guide 80; the first sliding guide part 70 is fixedly connected with the first fixing part 30, and the second sliding guide part 80 is fixedly connected with the follow-up adapter assembly 20; the first sliding guide 70 is slidably coupled to the second sliding guide 80 in the focusing direction.
In some embodiments, referring to fig. 2 and 3, the objective lens adjusting device further includes a plurality of first sliding guides 70 and a plurality of second sliding guides 80; the end side of the first fixing member 30 close to the servo adapter assembly 20 is provided with a plurality of first sliding guide connecting positions, and the first sliding guide 70 is fixedly connected to the first fixing member 30 through the first sliding guide connecting positions; one side of the follow-up adapter assembly 20 close to the first fixing member 30 is provided with a plurality of second sliding guide connecting positions, and the second sliding guide 80 is fixedly connected to the follow-up adapter assembly 20 through the second sliding guide connecting positions; in this way, by the sliding connection of the plurality of first sliding guides 70 and the corresponding second sliding guides 80 along the focusing direction, the reliable sliding connection of the first fixing member 30 and the follow-up adapter assembly 20 along the focusing direction is realized, and the shake of the objective lens switching assembly 10 and the objective lens 90 during the focusing process can be effectively prevented.
In some embodiments, referring to fig. 2, the objective lens adjusting device includes two follow-up adapter assemblies 20, wherein the two follow-up adapter assemblies 20 are symmetrically disposed on two sides of the first fixing member 30; the objective lens adjusting device further includes four first sliding guides 70 and four second sliding guides 80; two first sliding guide connecting positions are respectively arranged on two sides of the first fixing piece 30 close to the follow-up adapter assembly 20; correspondingly, one side of the follow-up adapter assembly 20 close to the first fixing member 30 is provided with two second sliding guide connection positions.
The number of the first sliding guides 70 and the number of the second sliding guides 80 are determined according to actual conditions, and the number of the first sliding guides 70 and the number of the second sliding guides 80 are not limited in the present application.
The application still provides a microscope, including microscope main part and above-mentioned objective adjusting device, objective adjusting device and microscope main part fixed connection, specifically, objective adjusting device passes through first mounting 30 fixed connection in the microscope main part to realize that objective switches and focusing function's integration, simple structure and compactness.
The objective lens adjusting device provided by the embodiment of the application has the following beneficial effects:
1. the servo switching component 20 is fixedly connected with the objective lens switching component 10; the focusing driving assembly 40 is fixedly connected with the first fixing piece 30, and the focusing driving assembly 40 is in transmission connection with the follow-up adapter assembly 20; the follow-up adapter assembly 20 is connected with the first fixing piece 30 in a sliding mode along the focusing direction; under the driving action of the focusing driving assembly 40, the follow-up adapter assembly 20 can drive the objective switching assembly 10 to move relative to the first fixing member 30 along the focusing direction, so that the integration of objective switching and focusing functions can be realized, the focusing precision is high, and the structure is simple and compact.
2. The follow-up adapter assembly 20, the first fixing member 30 and the focusing driving assembly 40 are arranged on the same side of the objective lens switching assembly 10 far away from the objective lens 90; the follow-up adapter assembly 20 is arranged between the focusing driving assembly 40 and the objective lens switching assembly 10; the first fixing member 30 is disposed in a space defined by the focusing driving assembly 40, the follower adapter assembly 20 and the objective lens switching assembly 10, so that the structure of the objective lens adjusting device can be further simplified, and the volume of the objective lens adjusting device can be further reduced.
3. The direct-drive assembly 12 is respectively in driving connection with the objective lens switching seat 13 and the rotary positioning piece 14, the rotary positioning piece 14 is arranged in a sensing area of the photoelectric detection assembly 15, and the control assembly is respectively in electric connection with the direct-drive assembly 12 and the photoelectric detection assembly 15, so that the switching precision of the objective lens switching assembly 10 can be improved.
The following describes a specific embodiment of the present application based on the above technical solutions.
Example one
Referring to fig. 1-5, a first embodiment provides an objective lens adjusting device, which includes an objective lens switching assembly 10, a follower adapter assembly 20, a first fixing member 30, and a focusing driving assembly 40; the follow-up adapter component 20 is fixedly connected with the objective lens switching component 10; the focusing driving assembly 40 is fixedly connected with the first fixing piece 30, and the focusing driving assembly 40 is in transmission connection with the follow-up adapter assembly 20; the follow-up adapter assembly 20 is connected with the first fixing piece 30 in a sliding mode along the focusing direction; under the driving action of the focusing driving assembly 40, the follower adapter assembly 20 can drive the objective lens switching assembly 10 to move in the focusing direction relative to the first fixing member 30.
The focusing driving assembly 40 comprises a focusing driving device 41 and an adapter 42 which are in driving connection; under the driving action of the focusing driving device 41, the adaptor 42 can cooperate with the follower adaptor assembly 20 and the objective lens switching assembly 10 to move along the focusing direction, so as to realize the focusing function of the objective lens adjusting device.
The objective lens adjusting device comprises two follow-up adapter assemblies 20, and the two follow-up adapter assemblies 20 are symmetrically arranged at two ends of an adapter 42.
The follow-up adapter assembly 20, the first fixing piece 30, the focusing driving device 41 and the adapter piece 42 are arranged on the same side of the objective lens switching assembly 10 far away from the objective lens 90; the follow-up adapter assembly 20 is fixedly arranged between the adapter 42 and the objective lens switching assembly 10; the first fixing member 30 is disposed in a space defined by the adaptor 42, the follow-up adaptor assembly 20 and the objective lens switching assembly 10; the focusing driving device 41 is arranged between the adaptor 42 and the first fixing member 30, the focusing driving device 41 is fixedly connected with the first fixing member 30, the focusing driving device 41 is abutted against the adaptor 42, and the focusing driving device 41 can drive and support the adaptor 42 so as to cooperatively drive and support the follow-up adaptor assembly 20 and the objective lens switching assembly 10. Thus, the structure of the objective lens adjusting device can be simplified, the volume of the objective lens adjusting device can be reduced, and the structure of the objective lens adjusting device is simple and compact.
The fixed connection surface of the adaptor 42 is arranged parallel to the fixed connection surface of the first fixing member 30.
The fixing connection surface of the first fixing member 30 is perpendicular to the focusing direction. The fixed connection surface of the first fixing member 30 is perpendicular to the light transmission direction, i.e. perpendicular to the objective lens located in the light path projection direction, so as to ensure that the light is projected into the objective lens located in the light path projection direction.
The fixed connection surface of the first fixing member 30 is disposed obliquely with respect to the central axis of the direct drive assembly 12.
The focusing driving device 41 may be a piezoelectric motor, and the piezoelectric motor is controlled to extend and retract by applying a preset voltage to the piezoelectric motor; under the condition that the piezoelectric motor extends and moves along the focusing direction, the piezoelectric motor can drive the adapter 42, the follow-up adapter assembly 20 and the objective lens switching assembly 10 to move along the extending direction of the piezoelectric motor; in the case where the piezoelectric motor contracts in the focusing direction, the adaptor 42, the follower adaptor assembly 20, and the objective lens switching assembly 10 can move in the contraction direction of the piezoelectric motor under their own weight. Thus, the focusing function of the objective lens adjusting device is realized.
The objective lens adjusting device comprises four elastic supporting elements 50, wherein the elastic supporting elements 50 are arranged between the first fixing piece 30 and the adaptor 42, one end of each elastic supporting element 50 is abutted against the first fixing piece 30, and the other end of each elastic supporting element 50 is abutted against the adaptor 42; the elastic direction of the elastic supporting member 50 coincides with the focus direction.
Four elastic supporting elements 50 are uniformly arranged on the peripheral side of the focusing driving device 41; the four elastic supporting elements 50 are all in a compressed state, and the four elastic supporting elements 50 can effectively support the adaptor 42, the follow-up adaptor assembly 20 and the objective lens switching assembly 10 in an auxiliary manner, so that the pressure applied to the focusing driving device 41 by the adaptor 42, the follow-up adaptor assembly 20 and the objective lens switching assembly 10 is effectively reduced, and the focusing driving device 41 can be effectively protected.
The objective lens adjusting device comprises four cylindrical guide members 60, the elastic supporting element 50 is sleeved on the cylindrical guide members 60, one side of the first fixing member 30 facing the adaptor member 42 is provided with a guide member fixing connection position, the adaptor member 42 is correspondingly provided with a position avoiding through hole, and the inner diameter of the position avoiding through hole is larger than the outer diameter of the guide members 60; one end of the cylindrical guide member 60 close to the first fixing member 30 is fixedly connected to the first fixing member 30 through a guide member fixed connection position, and one end of the cylindrical guide member 60 close to the adaptor 42 is accommodated in the avoiding through hole and is in a free state; in the case where the focus driving means 41 drives the adaptor 42 to move in the focus direction, one end of the cylindrical guide 60 close to the adaptor 42 can move in the clearance through hole.
The objective lens adjusting apparatus further includes four first sliding guides 70 and four second sliding guides 80, the first sliding guides 70 and the second sliding guides 80 being slidably connected in the focusing direction; two first sliding guide connecting positions are respectively arranged on two sides of the first fixing member 30 close to the follow-up adapter assembly 20, and the first sliding guide 70 is fixedly connected to the first fixing member 30 through the first sliding guide connecting positions; two second sliding guide connecting positions are arranged on one side, close to the first fixing piece 30, of the follow-up adapter assembly 20, and the second sliding guide 80 is fixedly connected to the follow-up adapter assembly 20 through the second sliding guide connecting positions, so that the reliable sliding connection of the first fixing piece 30 and the follow-up adapter assembly 20 along the focusing direction is realized through the sliding connection of the four first sliding guide pieces 70 and the corresponding second sliding guide pieces 80 along the focusing direction, and the shake of the objective lens switching assembly 10 and the objective lens 90 in the focusing process can be effectively prevented.
The follow-up adapter assembly 20 comprises a first adapter 21 and a second adapter 22 which are fixedly connected, wherein one end, far away from the second adapter 22, of the first adapter 21 is fixedly connected with an adapter 42, and one end, far away from the first adapter 21, of the second adapter 22 is fixedly connected with the second fixing piece 11. In this way, under the driving action of the focusing driving device 41, the adaptor 42 can move in the focusing direction in cooperation with the first adaptor 21, the second adaptor 22, the second fixing member 11 and the objective lens switching base 13, so as to realize the focusing function of the objective lens adjusting device.
The objective lens switching assembly 10 comprises a second fixing piece 11, a direct drive assembly 12 and an objective lens switching seat 13; the follow-up adapter assembly 20 is fixedly connected with the second fixing piece 11; the direct-drive assembly 12 is fixedly connected with the second fixing member 11, and the direct-drive assembly 12 is in driving connection with the objective lens switching seat 13.
The servo switching assembly 20 is fixedly connected to one side of the second fixing piece 11 far away from the objective lens 90, and the second fixing piece 11 is arranged between the servo switching assembly 20 and the objective lens switching seat 13; the direct-drive assembly 12 can directly drive the objective lens switching seat 13 to move without providing an intermediate transmission mechanism, such as a gear transmission mechanism or a worm gear transmission mechanism, so that transmission errors can be reduced, and the accuracy of driving the objective lens switching seat 13 is further improved.
The direct-drive assembly 12 comprises a direct-drive fixed end and a direct-drive moving end, the direct-drive fixed end is fixedly connected to the second fixing member 11, and the direct-drive moving end is in driving connection with the objective lens switching seat 13, so that under the driving of the direct-drive moving end, the objective lens switching seat 13 can move relative to the second fixing member 11 in cooperation with the objective lens 90, so that one of the objective lenses 90 rotates to a target position, and the objective lens switching function of the objective lens adjusting device is realized.
Five objective lens mounting positions 131 are arranged on the objective lens switching seat 13, and accordingly, the objective lens switching seat 13 can be fixedly connected with five objective lenses at the same time.
The objective lens switching assembly 10 further comprises a rotating positioning member 14 and a photoelectric detection assembly 15, wherein the rotating positioning member 14 is arranged in a sensing area of the photoelectric detection assembly 15; the rotary positioning part 14 is in transmission connection with the direct-drive moving end, the photoelectric detection assembly 15 is fixedly connected with the direct-drive fixed end, and the objective lens switching seat 13 and the rotary positioning part 14 can cooperatively rotate under the driving action of the direct-drive moving end; the photoelectric detection assembly 15 can detect the rotation angle of the rotating positioning member 14 relative to the second fixing member 11, and then can accurately obtain the rotation angle of the objective lens switching seat 13 relative to the second fixing member 11.
The objective lens adjusting device further comprises a control assembly electrically connected with the direct drive assembly 12 and the photoelectric detection assembly 15 respectively.
The control assembly can send a rotation control signal to the direct-drive assembly 12, so that the direct-drive assembly 12 can drive the objective lens switching seat 13 and the rotation positioning piece 14 to perform rotation movement with a preset angle, meanwhile, the photoelectric detection assembly 15 can continuously detect the rotation angle of the rotation positioning piece 14 relative to the second fixing piece 11 and feed the detection result back to the control assembly, and based on the feedback of the photoelectric detection assembly 15, the control assembly can control the objective lens switching seat 13 to dynamically adjust the rotation angle, so that the objective lens switching seat 13 can be accurately rotated to the preset angle, and thus, the switching precision of the objective lens switching assembly 10 can be improved.
The rotary positioning piece 14 can be a high-precision photoelectric coded disc, and a light transmission part and a light non-transmission part which are arranged regularly are arranged on the coded disc; the photoelectric detection assembly 15 comprises an emitting part and a receiving part, and a high-precision photoelectric code disc is arranged between the emitting part and the receiving part; in the process that the objective lens switching seat 13 rotates in cooperation with the high-precision photoelectric encoder, the optical signal emitted by the emitting part is regularly transmitted to the receiving part through the light-transmitting part, the receiving part outputs a corresponding electrical signal to the control assembly based on the received optical signal, and the electrical signal output by the receiving part can indicate the rotating angle of the rotating positioning part 14 relative to the second fixing part 11.
Example two
The difference between the second embodiment and the first embodiment is that the fixing manner of the guiding element 60 and the fixing manner of the photodetecting assembly 15 are the same as those of the first embodiment, and the description thereof is omitted here, and the difference between the second embodiment and the first embodiment will be described as follows:
a guide piece fixing connection position is arranged on one side, facing the first fixing piece 30, of the adaptor piece 42, a position avoiding through hole is correspondingly arranged on the first fixing piece 30, one end, close to the adaptor piece 42, of the guide piece 60 is fixedly connected to the adaptor piece 42 through the guide piece fixing connection position, and one end, close to the first fixing piece 30, of the guide piece 60 is accommodated in the position avoiding through hole and is in a free state; in the case where the focus driving means 41 drives the adaptor 42 to move in the focus direction, one end of the guide 60 close to the first fixing member 30 can move in the clearance through hole.
The rotary positioning part 14 is in transmission connection with the direct-drive moving end, the photoelectric detection assembly 15 is fixedly connected with the second fixing part 11, and the objective lens switching seat 13 and the rotary positioning part 14 can cooperatively rotate under the driving action of the direct-drive moving end; the photoelectric detection assembly 15 can detect the rotation angle of the rotating positioning member 14 relative to the second fixing member 11, and then can accurately obtain the rotation angle of the objective lens switching seat 13 relative to the second fixing member 11.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (11)
1. An objective lens adjusting device is characterized by comprising an objective lens switching assembly (10), a follow-up switching assembly (20), a first fixing piece (30) and a focusing driving assembly (40);
the follow-up adapter component (20) is fixedly connected with the objective lens switching component (10);
the focusing driving component (40) is fixedly connected with the first fixing piece (30); the focusing driving component (40) is in transmission connection with the follow-up adapter component (20);
the follow-up adapter assembly (20) is connected with the first fixing piece (30) in a sliding mode along the focusing direction;
under the driving action of the focusing driving assembly (40), the follow-up adapter assembly (20) can drive the objective lens switching assembly (10) to move along the focusing direction relative to the first fixing piece (30).
2. The objective lens adjustment device according to claim 1, wherein the focus drive assembly (40) comprises a focus drive means (41) and an adaptor (42), the focus drive means (41) being arranged between the adaptor (42) and the first fixture (30);
the focusing driving device (41) is fixedly connected with the first fixing piece (30), the focusing driving device (41) is in transmission connection with the adapter piece (42), and the adapter piece (42) is fixedly connected with the follow-up adapter assembly (20).
3. An objective lens adjustment device as claimed in claim 2, characterized in that the objective lens adjustment device further comprises at least one elastic support element (50);
the elastic supporting element (50) is arranged between the first fixing piece (30) and the adaptor (42), one end of the elastic supporting element (50) is abutted against the first fixing piece (30), and the other end of the elastic supporting element (50) is abutted against the adaptor (42);
the elastic direction of the elastic supporting element (50) is consistent with the focusing direction.
4. The objective lens adjustment device according to claim 3, further comprising at least one guide (60), the elastic support element (50) being fitted over the guide (60);
one of the first fixing piece (30) and the adapter piece (42) is provided with a guide piece fixing connection position, and the other one is provided with a guide piece movement accommodating position;
one end of the guide piece (60) is fixedly connected to the guide piece fixed connection position, and the other end of the guide piece (60) is accommodated on the guide piece movement accommodation position.
5. An objective lens adjustment device as set forth in claim 2, characterized in that the focus drive means (41) is a piezoelectric motor.
6. The objective lens adjusting device according to any one of claims 1 to 5, characterized by further comprising at least one first sliding guide (70) and at least one second sliding guide (80);
the first sliding guide piece (70) is fixedly connected with the first fixing piece (30), and the second sliding guide piece (80) is fixedly connected with the follow-up adapter assembly (20);
the first sliding guide (70) and the second sliding guide (80) are slidably connected in the focusing direction.
7. The objective lens adjustment device according to any one of claims 1 to 5, characterized in that the objective lens switching assembly (10) comprises a second fixture (11), a direct drive assembly (12) and an objective lens switching mount (13);
the follow-up adapter assembly (20) is fixedly connected with the second fixing piece (11);
the direct-drive assembly (12) is fixedly connected with the second fixing piece (11), and the direct-drive assembly (12) is in driving connection with the objective lens switching seat (13);
the objective lens switching seat (13) is provided with a plurality of objective lens mounting positions (131).
8. The objective lens adjustment device according to claim 7, wherein the objective lens switching assembly (10) further comprises a rotation positioning member (14) and a photoelectric detection assembly (15), the rotation positioning member (14) is disposed in a sensing area of the photoelectric detection assembly (15);
the rotary positioning part (14) and the photoelectric detection assembly (15) are alternatively in transmission connection with the direct drive assembly (12), and the other one is fixedly connected with the second fixing part (11).
9. The objective lens adjustment device according to claim 8, further comprising a control assembly electrically connected to the direct drive assembly (12) and the photo detection assembly (15), respectively.
10. An objective lens adjustment device as claimed in any one of claims 1 to 5, characterized in that the fixing connection face of the first fixing piece (30) is perpendicular to the focusing direction.
11. A microscope comprising the objective lens adjusting apparatus of any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223263061.6U CN218824947U (en) | 2022-12-06 | 2022-12-06 | Objective lens adjusting device and microscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223263061.6U CN218824947U (en) | 2022-12-06 | 2022-12-06 | Objective lens adjusting device and microscope |
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| Publication Number | Publication Date |
|---|---|
| CN218824947U true CN218824947U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223263061.6U Active CN218824947U (en) | 2022-12-06 | 2022-12-06 | Objective lens adjusting device and microscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117310925A (en) * | 2023-11-28 | 2023-12-29 | 武汉中导光电设备有限公司 | Cone pulley type objective lens switcher and cone pulley type objective lens |
-
2022
- 2022-12-06 CN CN202223263061.6U patent/CN218824947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117310925A (en) * | 2023-11-28 | 2023-12-29 | 武汉中导光电设备有限公司 | Cone pulley type objective lens switcher and cone pulley type objective lens |
| CN117310925B (en) * | 2023-11-28 | 2024-02-23 | 武汉中导光电设备有限公司 | Cone pulley type objective lens switcher and cone pulley type objective lens |
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