JPH0669926U - Microscope drawing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To make it possible to freely set the drawing position of the sample and to draw the sample easily with the overlap method. A drawing apparatus of a microscope provided with a drawing optical system including a drawing lens 15 and a reflecting member 17 for tracing a sample image on a drawing paper, the drawing optical system including the drawing lens 15 and the reflecting member 17. An infinite optical system that can move integrally is composed of a sliding member that varies the distance between the main optical axis and the drawing optical axis.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a microscope drawing device for drawing a specimen image through a drawing optical system.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, as a drawing apparatus for a microscope, one having a configuration as shown in FIGS. 4 and 5 is generally known.

FIG. 4 shows an overlap type drawing apparatus, in which 1 is an observation lens barrel of a microscope, 2 is an objective lens of the microscope, and 3 is interposed between the observation lens barrel 1 and the objective lens 2. This drawing apparatus 3 includes a half prism 4, a drawing lens 5 and a mirror 6.

According to this structure, the sample 7 is transmitted through the half prism 4 by the objective lens 2 to form an image at the position P, the drawing paper 8 is reflected by the mirror 6, and is reflected by the half prism 4 through the drawing lens 5. After that, an image is formed at the position P in the same manner as above. Therefore, an overlap image of the sample 7 and the drawing paper 8 is generated at this position P, and drawing is performed by tracing the sample image on the drawing paper 8 while observing the overlap image.

Further, FIG. 5 shows a projection type drawing apparatus, 3 ′ shows a drawing apparatus inserted between the observation lens barrel 1 and the objective lens 2, and this drawing apparatus 3 ′ is It has a half prism 4 ', a drawing lens 5', and a mirror 6.

According to this configuration, the light from the sample 7 is bent by the objective lens 2, reflected by the half mirror 4 ′, and then formed on the drawing paper 8 via the drawing lens 5 ′ and the mirror 6. The image of the sample 7 is projected onto the drawing paper 8, and drawing is performed by tracing the sample image projected onto the drawing paper 8.

[0007]

[Problems to be solved by the device]

 By the way, in the conventional drawing apparatus of the microscope shown in FIGS. 4 and 5, since the main optical axis 9 and the drawing optical axis 10 are fixed, for example, when working with the drawing paper 8 placed on the desk top surface, The drawing position is limited to the range shown by the chain double-dashed line in the figure obtained when the drawing device 3 is attached to the microscope main body 11 as shown in FIG. 6 and rotated about the main optical axis. Also, when rotating, it must be re-fixed to the microscope body 1. Normally, when it is used as a drawing device, it is installed on the right side of the microscope main body 11 or at the left position shown by the dotted line.

As described above, the overlap method shown in FIG. 4 can be used in a bright room as compared with the projection method shown in FIG. 5, and macro observation can be performed using the same apparatus. There is.

However, in the overlap type, since the drawing is performed while looking through the eyepiece lens, the drawing position that is felt to be preferable may be different depending on the person's physique and the like, which may impose a burden on the drawing posture. In addition, when drawing a sample over a wide area, it is necessary to move the sample and to re-superimpose the sample image and the drawn image, which causes a problem that the work is very troublesome.

The present invention has been made in view of the above circumstances, and an object thereof is to allow a drawing position of a sample to be freely set so that a drawing of a sample can be easily performed by an overlap method. An object of the present invention is to provide a microscope drawing device capable of performing the above.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, a microscope drawing apparatus according to the present invention is a microscope drawing apparatus including a drawing lens including a drawing lens and a reflecting member for tracing a specimen image on a drawing paper. And a sliding member for moving the drawing lens and the reflecting member integrally to change the distance between the main optical axis and the drawing optical axis.

[0012]

[Action]

 According to the microscope drawing apparatus having such a structure, even if the distance between the main optical axis and the drawing optical axis is changed by integrally moving the drawing lens and the reflecting member by the sliding member, Since the light flux is relayed by parallel light, it is possible to freely set the drawing position without changing the magnification and focus.

[0013]

【Example】

 A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing a first embodiment of a microscope drawing apparatus according to the present invention. In FIG. 1, reference numeral 12 denotes a cylindrical body having one end fitted and fixed to a lens barrel 26, and an elongated hole 12a extending in the axial direction is formed in an upper part of the other end of the cylindrical body 12. A half prism 35 is fixed in the lens barrel 26, and a part of the light beam incident through the objective lens 36 is transmitted to the observation lens barrel side (not shown) and the other part is deflected in the horizontal direction.

Reference numeral 13 denotes a lens barrel having a drawing lens 15 fixed therein. The lens barrel 13 is axially slidably fitted to the barrel body 12, and has a drawing optical axis side end portion. A mirror cylinder 14 having an opening 14a at the bottom is fitted so as to be slidable in the axial direction. In this case, a notch 13a large enough to expose the opening 14a of the mirror cylinder 14 is provided in the lower portion of the lens cylinder 13. Light from an unillustrated drawing paper enters through the notch 13a.

A mirror base 16 is provided inside the mirror cylinder 14, and a mirror 17 is attached to an inclined surface formed at an end of the mirror base 16, and light from a drawing paper (not shown) is incident through the notch 13a. Is reflected in the axial direction of the lens barrel 13. A knob 18a is attached to the center of the end of the mirror cylinder 14 to push and pull the mirror cylinder 14 into and out of the lens cylinder 13. Further, a knob 18b is screwed into one portion of the outer circumference of the lens barrel 13 through the elongated hole 12a of the barrel 12, and the lens barrel 13 can be slid in the barrel 12 by this knob 18b.

The tubular body 12, the lens barrel 13, and the mirror barrel 14 constitute a sliding member for forming the drawing lens 15 and the mirror 17 into an integrally movable infinite optical system.

In the drawing apparatus having such a configuration, when the knob 18b is manually moved to the left or right, the lens barrel 13 slides inside the barrel 12, and the entire optical system of the drawing lens 15 and the mirror 17 moves. Further, when the knob 18a is pushed and pulled, the mirror cylinder 14 slides inside the lens cylinder 13, and the distance between the mirror 17 and the drawing lens 15 is changed, whereby focus adjustment is performed. In this case, since the parallel rays are used to relay the light flux from the objective lens 36 to the half prism 35 and from the drawing lens 15 on the main optical axis side to the half prism 35, the magnification and focus do not change.

As described above, in the first embodiment, the infinity optical system in which the lens barrel 13 is slidable in the axial direction by the knob 18b and the relay of the light flux is performed by parallel light is adopted, whereby the magnification and the focus are adjusted. The drawing position can be freely set without changing. Further, even when this device is used as a macro observation device, the sample can be set at any position that does not interfere with the periphery of the microscope main body. FIG. 2 is a sectional view showing a second embodiment of the present invention.

In FIG. 2, reference numeral 19 denotes a cylindrical body, and one end of this cylindrical body 19 is fitted and fixed to a lens barrel (not shown) to which a half prism is fixed. A threaded portion is formed on the outer peripheral portion of the other end of the tubular body 19, and a rod base 20 having a flange portion is screwed onto the threaded portion.

Reference numeral 27 denotes a lens barrel having the drawing lens 15 fixed therein, and one end of the lens barrel 27 is slidably fitted to the mirror barrel 22. A mirror base 16 is provided inside the mirror cylinder 22, and a mirror 17 is attached to an inclined surface formed at an end of the mirror base 16 so that a light flux from a drawing paper (not shown) incident through a notch 22a is incident on the lens cylinder 27. Reflect in the axial direction of.

A screw portion is formed on the outer peripheral portion of one end of the mirror cylinder 22, and a rod base 23 having a flange portion is screwed into the screw portion. Further, a step portion 22a is formed on the outer peripheral portion of the mirror cylinder 22 that is appropriately separated from the rod base 23, and a long hole 22b is formed on a part of the outer peripheral portion between the step portion 22a and the rod base 23. It is provided.

Further, the cam groove tube 24 is rotatably fitted between the step portion 22a and the rod base 23, and one end of the cam groove tube 24 is in contact with the step portion 22a. The pin 25 is fitted in the cam groove 24a of the cam groove cylinder 24, and the threaded portion formed at the longitudinal end of the pin 25 is screwed into the lens cylinder 27 through the elongated hole 22b. A cover 28 is fixed to the outer circumference of the cam groove cylinder 24 with screws 29.

On the other hand, a rod 21 having a male screw formed at one end is passed through a rod insertion hole provided in a flange portion of a rod base 20 screwed to the end portion of the cylindrical body 19 to an end portion of the mirror cylinder 22. It is arranged on the flange portion side of the rod base 23 that is screwed into the rod base 23, and the male screw portion formed at one end of the rod 21 is screwed into the female screw portion formed at the flange portion of the rod base 23, Rotation is stopped by nuts 24 from both sides. A bellows 30 is fixed between the rod bases 20 and 21 by adhesion or screws.

When the mirror tube 22 is pushed or pulled in the drawing apparatus having such a configuration, the pushing / pulling force is transmitted to the lens tube 27 connected by the pin 25 via the cam groove tube 24 of the mirror tube 22. Then, the lens barrel 22 moves in the axial direction inside the barrel body 19. In this case, since the rod bases 20 and 21 are connected by the bellows 30, the pushing and pulling force of the mirror cylinder 22 is absorbed by the expansion and contraction of the bellows 30 and is not transmitted to the cylinder body 19.

Therefore, the lens barrel 27 and the mirror barrel 22 move the entire optical system of the drawing lens 15 and the mirror 17, so that the drawing from the objective lens to the half prism and the main optical axis is performed as in the first embodiment. Since the relay of the light flux from the lens to the half prism is performed by parallel light, the magnification and focus do not change.

When the cover 28 is rotated, the cam groove cylinder 24 is rotated in conjunction with the cover 28. When the cam groove cylinder 24 rotates, the pin 25 moves along the cam groove 24a, so that the lens cylinder 27 slides inside the mirror cylinder 22 under the thrust forces on the left and right sides in the drawing.

Therefore, since the focus can be adjusted by changing the distance between the mirror 17 and the lens 15 by rotating the cam groove 24, fine adjustment of the focus can be easily performed.

FIG. 3A is a cross-sectional view of a third embodiment of the present invention, and FIG. 3B is a vertical cross-sectional view. Further, the same components as those in FIG. 1 described in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the third embodiment, as shown in FIGS. 3A and 3B, a cylindrical portion 12a having the main optical axis as the central axis is formed at the end of the cylindrical body 12 on the main optical axis side. Openings 12b and 12b 'are provided on the main optical axis side of the cylindrical portion 12a, and a male dovetail-shaped lens barrel member 31 is fitted to the outer peripheral portion of the cylindrical portion 12a except the upper portion of the cylindrical portion 12a. The configuration is such that a female-like closing member 33 is fitted on the upper part and the lens barrel member 31 and the closing member 33 are fixed at a plurality of points by screws (not shown).

In this case, the half prism 34 is fixed inside the cylindrical portion 12a. Further, an opening is formed in a part of the mounting portion of the lens barrel member 31 with the cylindrical portion 12a, and the cylindrical portion 12a is rotatable in the range of 90 ° to 180 ° about the main optical axis. . The cylindrical portion 12a may be formed separately from the cylindrical body 12. The configuration illustrated on the left by the broken line in FIG. 3B is the same as that described in the first embodiment, and this portion may be the configuration of the second embodiment.

In the microscope drawing apparatus having such a configuration, the cylindrical portion 12a is rotated by rotating the cylindrical body 12 with the lens barrel member 31 attached to the object lens barrel portion (not shown). It rotates about the main optical axis of 31, and at this time, the half prism 34 in the cylindrical portion 12a also rotates at the same time.

Therefore, in addition to the effects of the first and second embodiments, even if the cylindrical body 12 is rotated about the main optical axis, the half prism 34 in the cylindrical portion 12a rotates integrally. Since the mirror-drawn image does not rotate, the drawing optical axis can be easily adjusted again by rotating the barrel 12 and sliding the lens barrel 13 after moving the specimen even when the specimen is drawn over a wide range. be able to. Since this does not move the drawing paper, there is an effect that no deviation occurs in the rotation direction of the sample image and the drawn image. Further, by disposing the cylindrical body 12 above the arm of the microscope main body when not in use, it is possible to eliminate the drawbacks that have been an obstacle to various operations in the past.

[0034]

[Effect of device]

 As described above, according to the present invention, since the distance between the drawing optical axis and the main optical axis can be changed, the drawing position can be freely set without changing the magnification and focus. By rotating the drawing cylinder around the axis, drawing work can be performed more easily, and it can be stored above the arm when not in use. It is possible to provide a microscope drawing device that can be set in a position where it does not interfere with the microscope body.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of a microscope drawing apparatus according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of the present invention.

FIG. 3 is a sectional view showing a third embodiment of the present invention.

FIG. 4 is a schematic diagram for explaining the principle configuration of a conventional overlap type drawing apparatus.

FIG. 5 is a schematic diagram for explaining the principle configuration of a conventional projection type drawing apparatus.

FIG. 6 is a view showing a state in which a conventional drawing device is attached to a microscope.

[Explanation of symbols]

12 ... Cylinder, 12a ... Oval hole, 13 ... Lens cylinder, 1
4 ... Mirror cylinder, 15 ... Drawing lens, 16 ... Mirror stand, 17 ... Mirror, 18a, 18b ... Knob, 2
6 ... Cylindrical mirror, 35 ... Half prism, 36 ... Objective lens.

Claims (2)

[Scope of utility model registration request] 1. A drawing apparatus of a microscope having a drawing optical system including a drawing lens and a reflecting member for tracing a sample image on a drawing paper, wherein the drawing optical system is integrated with the drawing lens and the reflecting member. An apparatus for drawing a microscope, characterized in that it is composed of a sliding member that can change the distance between the main optical axis and the drawing optical axis as an infinite optical system that can be moved. 2. The microscope drawing apparatus according to claim 1, wherein the infinite optical system is configured to be rotatable about a main optical axis.