CN217787591U - Optical machine structure and projection equipment - Google Patents

Abstract

The application discloses ray apparatus structure and projection equipment. The optical machine structure comprises a main shell and a light-emitting shell. The main casing body is provided with a reference plane and a light outlet. Light-emitting casing detachably installs in the main casing body, and the light-emitting casing is equipped with incident port and exit port, and the light-emitting port corresponds the setting with the incident port, and income light lens is installed to the incident port, and light-emitting lens is installed to the exit port. The light-emitting shell is provided with a reflector which is positioned on a light path between the light-in lens and the light-emitting lens. The optical axis of the light-emitting lens is parallel to the reference plane, and the optical axis of the light-emitting lens forms an included angle with the reference plane. Through the mode, the light emitting precision of the light machine structure is high.

Description

Optical machine structure and projection equipment

Technical Field

The application relates to the technical field of projection equipment, in particular to an optical machine structure and projection equipment.

Background

In laser display products, such as projection devices, optical-mechanical structures are typically included. In the ray machine structure, the span of the ray distance and the torsion of the angle are realized by the way of setting the deflection angle of the reflector for the emitted ray, so that the ray is emitted to the square rod. In the optical-mechanical structure, the square rod forms a certain included angle with the horizontal plane, so that the reflector has a compound angle. However, the optical-mechanical housing in the existing optical-mechanical structure is integrally arranged, and an inclined plane with a compound angle is machined and formed on the optical-mechanical housing, and then the reflector is installed on the inclined plane to reflect light. Therefore, the optical machine structure has the technical problem of low light emitting precision.

SUMMERY OF THE UTILITY MODEL

The application aim at provides an optical machine structure and projection equipment, can improve optical machine structure's light-emitting precision.

In order to solve the technical problem, the application adopts a technical scheme that:

a light machine structure is provided, which comprises a main housing and a light-emitting housing. The main casing body is provided with a reference plane and a light outlet. The light-emitting casing detachably installs in the main casing body, and the light-emitting casing is equipped with entrance and exit port, and the light-emitting mouth corresponds the setting with the entrance, and light-in lens is installed to the entrance, and light-emitting lens is installed to the exit port. The light-emitting shell is provided with a reflector which is positioned on a light path between the light-entering lens and the light-emitting lens. The optical axis of the light-emitting lens is parallel to the reference plane, and the optical axis of the light-emitting lens forms an included angle with the reference plane.

The beneficial effect of this application is: be different from prior art's condition, through dividing into main casing and light-emitting casing with the ray apparatus structure for compound angle can be realized respectively through the structure of difference. One of the compound angles is an included angle between the reflector and the incident light lens, when the light-emitting shell is manufactured, the reflector deflects by taking the plane where the incident light lens is located as a reference, the reference is single, and the manufacturing precision is high. Another angle of compound angle is through when assembling the light-emitting casing to the main casing body, rotates light-emitting casing and main casing body relative to suitable angle, then fixes the two and realizes that the benchmark is single, and the assembly precision is higher. Therefore, the manufacturing precision of the light-emitting shell is improved, and the light-emitting precision of the optical machine structure is improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an optical-mechanical architecture of the present application;

FIG. 2 is a schematic diagram of the optical components and optical paths of the present invention;

FIG. 3 is a side view of the optical element of FIG. 2 at an angle;

FIG. 4 is a side view of the optical element of FIG. 2 at an alternate angle;

FIG. 5 is a schematic structural view of the light-exiting housing of FIG. 1 when detached from the main housing;

FIG. 6 is an exploded view of the light housing of FIG. 5;

fig. 7 is a schematic structural diagram of a projection apparatus according to the present application.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The inventor of the present application has found through long-term research that, in the process of emitting light from the optical-mechanical structure to the square rod, an optical element, such as a mirror or a prism, needs to be disposed between the optical-mechanical structure and the square rod to transmit the light emitted from the optical-mechanical structure to the square rod. Since the square rod and the horizontal plane have a certain included angle (refer to the angle γ in fig. 4), the reflector has a compound angle, that is, the reflector needs to be rotated by a certain angle relative to the plane where the light-entering lens is located, and then rotated by a certain angle along the optical axis of the light-entering lens (refer to the angle α and the angle β in fig. 3 and fig. 4) to reflect the light to the square rod. The shell of the existing optical-mechanical structure is a whole, and the light is emitted by directly processing and molding an inclined plane with a compound angle on the shell and then installing a reflector on the inclined plane. The inclined plane with the compound angle is difficult to machine and position, the precision is difficult to guarantee, light rays are difficult to reflect to the square rod accurately through the reflector, and the light emitting precision of the optical machine structure is low. In order to improve the above technical problem, the present application may provide the following embodiments.

As shown in fig. 1 and 2, the optical-mechanical structure 1 includes a main housing 10 and a light-emitting housing 20. The main housing 10 has a reference plane 31 and is provided with a light exit 11. The main housing 10 can emit light through the light outlet 11 after the light source is mounted. The opto-mechanical structure 1 further comprises a square bar 40. The light-emitting housing 20 is used to transmit light emitted from the main housing 10 into the square rod 40.

The light-emitting housing 20 is provided with an incident port 211 and an exit port 212, the light-emitting port 11 is arranged corresponding to the incident port 211, the light-entering lens 22 is installed at the incident port 211, and the light-emitting lens 23 is installed at the exit port 212. The light-emitting housing 20 is provided with a reflector 24, and the reflector 24 is located on the light path between the light-in lens 22 and the light-out lens 23. The light-in lens 22 can convert the light emitted from the main housing 10 into parallel light, so that the light is reflected to the light-out lens 23 by the reflector 24. The light-exiting lens 23 can focus the parallel light reflected by the reflector 24, so that the light can enter the square rod 40. The optical axis of the light-in lens 22 is parallel to the reference plane 31, the light-out direction of the main housing 10 is parallel to the reference plane 31, and the light-out port 11 is disposed corresponding to the light-in port 211, so that the light emitted from the main housing 10 can be incident into the light-in lens 22. The optical axis of the light-emitting lens 23 is disposed at an angle to the reference plane 31, so that the light emitted from the light-emitting lens 23 can enter the square rod 40.

Referring to fig. 3 and 4, in particular, by providing the light housing 20 detachably mounted to the main housing 10, the reflection mirror 24 having a compound angle can be separately implemented by different structures. One of the compound angles is an angle between the reflector 24 and the light entrance lens 22, or an angle between the reflector 24 and a horizontal plane (i.e., a reference plane 31) (i.e., an angle α in fig. 3). When the light-exiting housing 20 is manufactured, the reflector 24 may be rotated with respect to the plane of the light-entering lens 22, i.e., the reflector 24 may be tilted to a predetermined angle. Alternatively, the mirror 24 may be tilted to a predetermined angle by rotating the mirror 24 with reference to the reference plane 31. In this way, the deflection of one of the angles of the mirror 24 having a compound angle can be realized by a single reference, and the manufacturing accuracy is high, and the angle measurement is also facilitated.

Another angle of the compound angle is achieved by the assembly process of the main housing 10 of the light-exiting housing 20. For example, when the light-emitting housing 20 is installed, the optical axis of the light-emitting lens 23 is disposed at an angle (see angle β in fig. 4) with respect to the reference plane 31, and then the light-emitting housing 20 is fixed on the main housing. The light-exiting housing 20 allows light to be incident into the square rod 40 by proper assembly. In this way, when the light-exiting housing 20 is assembled, the reflector 24 and the light-exiting lens 23 can move together with the light-exiting housing 20, and the movement of the light-exiting housing 20 is based on the optical axis of the light-entering lens 22. In this way, the deflection of the other angle of the mirror 24 having the compound angle can be realized by a single reference, and the manufacturing accuracy is high, which facilitates the measurement. Like this, with compound angular separation for two angles, two angles can be realized through the structure of difference to the processing and the location of every structure can be realized through single benchmark, thereby has improved the manufacturing accuracy of light-emitting casing 20, has improved the light-emitting precision of ray apparatus structure 1. And the composite angle can be conveniently measured, and the quality detection of the light-emitting shell 20 can be conveniently carried out.

Further, the light-emitting housing 20 may be detachably connected to the main housing 10 by means of screw fitting, screw fixing or snap fitting. The light-exiting housing 20 can be rotated along the optical axis of the light-entering lens 22 during assembly to change the angle between the optical axis of the light-exiting lens 23 and the reference plane 31. By rotating the light-exiting housing 20 so as to align the optical axis of the light-exiting lens 23 with the square rod 40, the light exiting from the light-exiting housing 20 can be incident into the square rod 40. Then, the light-emitting housing 20 is fixedly mounted on the main housing 10, so that the relative position between the light-emitting housing 20 and the main housing 10 is fixed, and the light-emitting structure 1 can stably emit light. When the light-exiting housing 20 is mounted on the main housing 10, the light-exiting port 11 is disposed corresponding to the incident port 211, so that the light exiting from the main housing 10 can be incident from the incident port 211. When the light-emitting housing 20 is mounted on the main housing 10, the optical axis of the light-emitting lens 23 forms an included angle with the reference plane 31, and the included angle is consistent with the included angle between the square rod 40 and the reference plane 31, so that the optical axis of the light-emitting lens 23 can point to the square rod 40.

In one embodiment, the angle between the reflector and the plane of the entrance lens is 40 ° to 50 °, for example 40 °, 45 ° or 50 °. The included angle between the optical axis of the light-emitting lens and the reference plane is 5-10 degrees, and for example, the included angle can be 6 degrees, 7 degrees or 8 degrees.

Further, the optical axis of the light incident lens 22 is perpendicular to the optical axis of the light exiting lens 23, and the angle of the light passing through the reflector 24 is changed by 90 °, so that the included angle between the reflector 24 and the plane where the light incident lens 22 is located is 45 ° (i.e., α =45 ° in fig. 3), and the included angle between the reflector 24 and the light exiting lens 23 is also 45 °. In the present embodiment, the angle between the square rod 40 and the reference plane 31 is 8.2 ° (i.e., γ =8.2 ° in fig. 4), and the light-exiting housing 20 is rotated along the optical axis of the light-entering lens 22 so that the angle between the optical axis of the light-exiting lens 23 and the reference plane 31 is 8.2 ° (i.e., β =8.2 ° in fig. 4), so that the light passing through the light-exiting lens 23 enters the square rod 40.

Referring to fig. 1 and 5, optionally, the main housing 10 includes a first docking portion 25, and the first docking portion 25 is disposed on the peripheral side of the light outlet 11. The light exit housing 20 is provided with a second docking portion 26 corresponding to the first docking portion 25, and the second docking portion 26 is provided on the periphery of the incident port 211. When the light-emitting housing 20 is mounted on the main housing 10, the first docking portion 25 abuts against the second docking portion 26, so that the degree of freedom of the light-emitting housing 20 can be limited, and the relative position of the light-emitting housing 20 and the main housing 10 can be limited. Then through modes such as screw-thread fit, screw connection or buckle, further restrict the degree of freedom of light-emitting casing 20 to the relative position with light-emitting casing 20 and main casing 10 is fixed, makes ray apparatus structure 1 can stabilize the light-emitting. The plane of first butt joint portion 25 and the butt joint of second butt joint portion 26 is perpendicular with reference plane 31, and the plane that goes into light lens 22 place is perpendicular with reference plane 31 to align the light-emitting direction of main casing body 10 with the optical axis of going into light lens 22, make the light-emitting of main casing body 10 can go out smoothly to go into in going into light lens 22.

Furthermore, the first docking portion 25 is provided with a positioning hole 28, the second docking portion 26 is provided with a positioning post 27, or the first docking portion 25 is provided with a positioning post 27 on the periphery side, and the second docking portion 26 is provided with a positioning hole 28. Specifically, the first mating portion 25 may be provided with a positioning post 27, a positioning hole 28, or both the positioning post 27 and the positioning hole 28. The second docking portion 26 may be provided with a positioning post 27, a positioning hole 28, or both the positioning post 27 and the positioning hole 28. When the first docking portion 25 and the second docking portion 26 are in contact, the positioning posts 27 extend into the positioning holes 28, so as to fix the relative position of the light-emitting housing 20 and the main housing 10, and mount the light-emitting housing 20 on the main housing 10.

Optionally, the first docking portion 25 is provided with at least two positioning posts 27, the second docking portion 26 is provided with at least two positioning holes 28, and the positioning posts 27 extend into the positioning holes 28. When the two positioning columns 27 and the two positioning holes 28 can make the butt joint portion 25 and the second butt joint portion 26 abut against each other, the light-emitting housing 20 cannot rotate, so that the relative position between the light-emitting housing 20 and the main housing 10 is fixed, the included angle between the optical axis of the light-emitting lens 23 and the reference plane 31 is fixed, and the light-emitting structure 1 can stably emit light.

In an embodiment, the first docking portion 25 and the second docking portion 26 are opened with fixing holes (not labeled), and the fixing holes may be threaded holes or holes for snap-in fasteners. The connecting piece can be a screw or a buckle. The connecting piece passes through the fixed orifices in order to be connected light-emitting casing 20 and main casing 10 steadily, reduces to produce relative displacement between light-emitting casing 20 and the main casing 10, guarantees the stability of light source light-emitting. In this embodiment, the angle between the square rod 40 and the horizontal plane is 8.2 °, and in order to facilitate the assembly of the light-emitting housing 20 and the main housing 10, when the positioning post 27 extends into the positioning hole 28 and the connecting member connects the light-emitting housing 20 and the main housing 10, the angle between the optical axis of the light-emitting lens 23 and the reference plane 31 is 8.2 °. Thus, by presetting the positions of the positioning hole 28 and the positioning column 27, after the light-emitting housing 20 is directly mounted on the main housing 10, the included angle between the optical axis of the light-emitting lens 23 and the reference plane 31 can be determined without finding the angle between the light-emitting housing 20 and the main housing 10 through measurement.

Alternatively, the first docking portion 25 is provided with a plurality of positioning posts 27 along the circumference of the light outlet 11, the second docking portion 26 is provided with two positioning holes 28, and two of the positioning posts 27 can extend into the positioning holes 28, so as to determine the relative position of one mounting portion and the main housing 10, and determine the included angle between the optical axis of one light outlet lens 23 and the reference plane 31. After the light-emitting housing 20 is detached, the other two of the positioning posts 27 are inserted into the positioning holes 28, so as to determine the relative position of the other mounting part and the main housing 10, and to determine the included angle between one light-emitting lens 23 and the reference plane 31. So can make things convenient for ray apparatus structure 1 to match the square rod 40 of different inclination, increase the convenience of assembly.

Referring to fig. 2 and 6, in an embodiment, the light-exiting housing 20 includes two reflectors 24, the two reflectors 24 are a first reflector 241 and a second reflector 242 respectively, the first reflector 241 is disposed corresponding to the light-entering lens 22, the second reflector 242 is disposed corresponding to the light-exiting lens 23, the first reflector 241 is configured to reflect the light passing through the light-entering lens 22 to the second reflector 242, and the second reflector 242 is configured to reflect the light to the light-exiting lens 23.

Specifically, if only one mirror 24 is provided, the light emitted from the main housing 10 is rotated by a certain angle. The optical axis of the light-exiting lens 23 intersects with the optical axis of the light-entering lens 22 (i.e. the light-exiting direction of the light-exiting housing 20 intersects with the light-exiting direction of the main housing 10), and there is no offset distance between the two, and the light can only deflect and cannot spread across the distance. Furthermore, the direction of the square rod 40 receiving light must intersect the light emitting direction of the main housing 10, which limits the structural design of the optical mechanical structure 1 and the square rod 40. The first reflector 241 and the second reflector 242 are disposed to enable the optical axis of the light exiting lens 23 to be offset from the optical axis of the light entering lens 22 by a certain distance. The distance between the optical axis of the light emitting lens 23 and the optical axis of the light entering lens 22 can be adjusted by designing the distance between the first reflector 241 and the second reflector 242, so that light can be deflected by a certain distance after passing through the light emitting housing 20, the light emitting housing 20 can emit light to the square rod 40 conveniently, and the convenience of the structural design of the optical mechanical structure 1 and the square rod 40 is improved.

Referring to fig. 1 and 6, the structure of the light-exiting housing 20 is further defined below, the light-exiting housing 20 has a first sidewall 213 and a second sidewall 214, the first sidewall 213 is provided with a first mounting opening 215 penetrating the first sidewall 213, and the first reflector 241 is mounted on the first mounting opening 215. The second side wall 214 is provided with a second mounting opening 216 penetrating the second side wall 214, and the second reflector 242 is mounted on the second mounting opening 216. Specifically, by providing the first mounting opening 215 on the first sidewall 213 and the second mounting opening 216 on the second sidewall 214, the first reflector 241 and the second reflector 242 can be easily inserted into the light-emitting housing 20 from the first mounting opening 215 and the second mounting opening 216, and the manufacturing process of the light-emitting housing 20 can be simplified. Alternatively, the first sidewall 213 is disposed parallel to the first mirror 241, and the second sidewall 214 is disposed parallel to the second mirror 242. When the light-emitting housing 20 is manufactured, the first side wall 213 and the second side wall 214 are inclined at an angle equal to the angle at which the first reflector 241 and the second reflector 242 are inclined. In this way, the first reflecting mirror 241 and the second reflecting mirror 242 can be attached at a predetermined angle by providing a boss, a locking portion, or the like for fixing the first reflecting mirror 241 and the second reflecting mirror 242 in the first attaching opening 215 and the second attaching opening 216 and then directly attaching the first reflecting mirror 241 and the second reflecting mirror 242 to the first attaching opening 215 and the second attaching opening 216. The assembly of the mirror 24 is simplified. And simultaneously, the measurement of the angle of the reflector 24 and the quality detection of the light-emitting shell 20 are facilitated.

In other embodiments, the opto-mechanical structure 1 further comprises a mounting frame, and the mounting frame is disposed on the reference plane 31. The light-emitting housing 20 is detachably mounted to the mounting bracket. The light-exiting housing 20 can be rotated along the optical axis of the light-entering lens 22 during assembly to change the included angle between the optical axis of the light-exiting lens 23 and the reference plane 31, so as to inject the light exiting from the light-exiting lens 23 into the square bar 40. After the light-emitting angle of the light-emitting housing 20 is determined, the light-emitting housing 20 is mounted on the mounting frame, and the incident port 211 corresponds to the light-emitting port 11. The square rod 40 forms an included angle with the reference plane 31, and when the light-emitting housing 20 is mounted on the mounting rack, the optical axis of the light-emitting lens 23 forms an included angle with the reference plane 31.

Referring to fig. 7, the present application further provides a projection apparatus 2, where the projection apparatus 2 includes a lens 3, a light source 4, and an optical-mechanical structure 1. The light source 4 is installed in the main housing 10 of the optical-mechanical structure 1, and is used for generating light, and the light is emitted from the light outlet 11 after being acted by the optical-mechanical structure 1. During camera lens 3 located ray-emitting channel of ray-emitting structure 1, ray-emitting of ray-emitting structure 1 can directly penetrate into or penetrate into camera lens 3 through optical elements such as reflectors, and after camera lens 3 handled light, the outgoing was formed images to the external world. The specific structure of the optical-mechanical structure 1 refers to the above embodiments, and since the projection device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.

Claims (10)

1. An opto-mechanical structure, comprising:

a main housing having a reference plane and provided with a light outlet;

the light-emitting shell is detachably mounted on the main shell and provided with an incident port and an emergent port, the emergent port is arranged corresponding to the incident port, the incident port is provided with an incident lens, and the emergent port is provided with an emergent lens; the light-emitting shell is provided with a reflector which is positioned on a light path between the light-in lens and the light-out lens;

the optical axis of the light incidence lens is parallel to the reference plane, and the included angle between the optical axis of the light emergence lens and the reference plane is set.

2. The optical-mechanical structure of claim 1, wherein:

the main shell comprises a first butt joint part which is arranged on the periphery of the light outlet; the light-emitting casing be equipped with the second butt joint portion that first butt joint portion corresponds, second butt joint portion is located the week side of entrance port, the light-emitting casing install in during the main casing body, first butt joint portion with second butt joint portion butt, first butt joint portion with the plane of second butt joint portion butt with the reference plane is perpendicular.

3. The light engine structure of claim 2, wherein:

the first butt joint part is provided with a positioning hole, the second butt joint part is provided with a positioning column, and/or the periphery of the first butt joint part is provided with the positioning column, and the second butt joint part is provided with the positioning hole; the positioning column extends into the positioning hole so as to install the light-emitting shell on the main shell.

4. The light engine structure of claim 3, wherein:

the first butt joint part is provided with at least two positioning columns, the second butt joint part is provided with at least two positioning holes, and the positioning columns extend into the positioning holes so as to fix the relative positions of the light-emitting shell and the main shell; the first butt joint portion with the second butt joint portion has all seted up the fixed orifices, and the connecting piece passes the fixed orifices in order with the light-emitting casing with main casing body fixed connection, the light-emitting casing with when main casing body coupling, the optical axis of light-emitting lens with the reference plane contained angle sets up.

5. The opto-mechanical arrangement of claim 4, wherein:

the included angle between the reflector and the plane where the light-in lens is located is 40-50 degrees, and the included angle between the optical axis of the light-out lens and the reference plane is 5-10 degrees.

6. The opto-mechanical arrangement of claim 5, wherein:

the included angle between the reflector and the plane where the light-in lens is located is 45 degrees, and the included angle between the light-out lens optical axis and the reference plane is 8.2 degrees.

7. The optical-mechanical structure of claim 1, wherein:

the light-emitting shell comprises two reflectors, two the reflectors are respectively a first reflector and a second reflector, the first reflector and the light-entering lens correspond to be set up, the second reflector and the light-emitting lens correspond to be set up, the first reflector is used for passing through the light reflection of the light-entering lens extremely the second reflector, the second reflector is used for reflecting light extremely the light-emitting lens.

8. The opto-mechanical arrangement according to claim 7, characterized in that:

the light-emitting shell is provided with a first side wall and a second side wall, a first mounting hole penetrating through the first side wall is formed in the first side wall, and the first reflector is mounted in the first mounting hole; and a second mounting opening penetrating through the second side wall is formed in the second side wall, and the second reflector is mounted in the second mounting opening.

9. The optical-mechanical structure of claim 1, wherein:

the optical machine structure still includes the mounting bracket, the mounting bracket is located on the reference plane, light-emitting casing detachably install in the mounting bracket, can along when the light-emitting casing is dismantled the optical axis of going into optical lens is rotatory, in order to change the optical axis of light-emitting lens with reference plane's contained angle, the light-emitting casing install in during the mounting bracket, the incident port with go out the optical port and correspond, just the optical axis of light-emitting lens with reference plane is the contained angle setting.

10. A projection device, comprising:

lens and light source, and

the optical-mechanical structure of any one of claims 1 to 9, wherein the light source is installed in a main housing of the optical-mechanical structure, and the lens is disposed in a light-emitting channel of the optical-mechanical structure.

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