JP3427135B2 - Microscope drawing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microscope drawing device, and more particularly to a microscope drawing device for adjusting the position of a drawing surface.

[0002]

2. Description of the Related Art As shown in FIG. 7, a drawing apparatus for a microscope is used by being arranged between observation optical systems of a microscope.
The microscope forms an image of the sample 101 captured by the objective lens 102 on an image plane 103, and observes the sample image formed on the image plane 103 with an eyepiece lens 104.

The drawing device 105 is attached to a microscope. The drawing device 105 includes a mirror 107 that reflects the image on the paper surface 106, a first imaging lens 108 that forms the reflected image on the image surface 109, and an image on the image surface 109 on the image surface 103.
It has a second imaging lens 110 for re-imaging the light and a half mirror 111 for reflecting the light from the second imaging lens 110 in the optical axis direction of the microscope.

Therefore, by using the drawing device 105, the image of the sample 101 and the paper 1
The image of No. 06 and the image of No. 06 are formed, and the observer can see both images as overlapping. Then, while looking at the image of the specimen, the image of the specimen 101 can be sketched on the paper surface 106. At this time, if the imaging lenses 108 and 110 have an appropriate magnification,
You can sketch an enlarged image of the specimen.

[0005]

According to the conventional technique as described above, the positional relationship between the microscope and the drawing apparatus, that is, the distance between the specimen and the paper surface is always fixed regardless of the human body shape, posture, and preference. Was there. For this reason, some people were forced to sketch in an unreasonable posture. The present invention has been made in view of such a problem, and an object of the present invention is to perform drawing for a microscope in which the position of the paper surface can be adjusted so that the paper surface can be installed at a position where an observer can easily draw. To get the equipment.

[0006]

In order to solve the above-mentioned problems, the drawing apparatus for a microscope of the present invention uses a drawing surface (6) on the image of the specimen (1) observed by the observation optical system (2, 4) of the microscope. In a drawing apparatus for a microscope provided with a drawing optical system (8, 11) for forming an image of the drawing surface so that the images of the drawing surfaces are superposed, the drawing optical system is arranged in an optical path for forming an image of the drawing surface. , A removable relay system with parallel optics (1
0).

[0007]

In the above construction, since there is no difference in the image forming relationship when the relay system enters the optical system of the drawing apparatus and when it is excluded, the relay system can be attached or detached by the holding member. Therefore, it is easy to change the distance between the specimen and the paper. Further, since the relay system is a parallel optical system, the drawing position can be changed by changing the interval between the parallel system portions in the relay system.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a drawing apparatus according to a first embodiment of the present invention. The sample 1 is illuminated by an illumination optical system (not shown), the image of the sample 1 is magnified by the objective lens 2, the magnified image is formed on the image plane 3 of the objective lens, and the eyepiece 4
Observe the enlarged image at. The drawing device 5 provided in such a microscope is formed so as to be separable into two lens barrels 13, 14, 15, and includes a mirror 7, a first imaging optical system 8, a relay optical system 10, and a second imaging. The optical system 11 and the prism 12 are provided. The paper 6 sketching the magnified image of the specimen 1 is arranged below the mirror 7 of the drawing device 5. The light from the paper surface 6 is reflected by the mirror 7, and the image on the paper surface is formed on the image surface 9 by the first imaging optical system 8. The image on the image plane 9 passes through the relay optical system 10 and is further imaged by the second imaging system 11,
The prism 12 unifies the optical axis a1 of the objective lens 2 and the optical axis a2 of the drawing device 5. Then, the image on the image plane 9 is re-formed on the image plane 3 of the objective lens 2.

The lens barrel 13 at the tip of the drawing apparatus holds the mirror 7 and the first imaging optical system 8, and the intermediate lens barrel 14 is the relay optical system 1.
0, and the rear lens barrel 15 holds the second imaging optical system and the prism 12. The front lens barrel 13 and the intermediate lens barrel 14 and the intermediate lens barrel 14 and the rear lens barrel 15 are fitted in the same shape, and they are fixed by fixing screws (not shown). .

In such a drawing apparatus, first, as shown in FIG. 1, the rear end lens barrel 15 of the drawing device 5 is attached to a predetermined position of the microscope, and the intermediate lens barrel 14 is connected to the rear end lens barrel 15. Then, the tip lens barrel 13 is connected and fixed to the intermediate lens barrel 14. At this time, the optical system of the drawing device 5 is as follows. That is, the reflection mirror 7 reflects the image of the paper 6 placed below the reflection mirror 7 in the direction of the optical axis a2, and
The imaging optical system 8 magnifies the image of the paper 6 according to the magnification of the optical system and connects it to the image plane 9. The image on the image plane 9 enters the relay optical system 10. The relay optical system has a concave lens 10a and a convex lens 10b, and the light from the image plane 9 becomes a parallel light flux by the lens 10b, and the relay optical system 1 by the lens 10a.
The light is emitted in substantially the same state as when it was incident on 0.
Further, the emitted image is condensed by the second imaging optical system 11. At this time, the collected image is further reflected on the optical axis a1 by the prism 12, and is thus formed on the image plane 3 of the microscope. The prism 12 functions as a half mirror. That is, a part of the image of the sample is transmitted toward the image plane 3,
A part of the image of the paper is reflected toward the image plane 3. Therefore,
When the sample 1 and the paper 6 are arranged at predetermined positions, the image of the sample 1 and the image of the paper 6 are simultaneously formed on the image plane 3. This image plane 3
The two images formed on the are observed by the observer via the eyepiece lens 4.

Therefore, the observer then arranges the paper 6 below the drawing device 5 while looking into the eyepiece 4.
If the position is easy to sketch, the sample 1 is placed on the microscope as it is, and an enlarged image of the sample 1 is sketched. However, when the paper 6 is placed below the drawing device 5, the distance between the eyepiece 4 and the paper 6 becomes large, and it is difficult to sketch the magnified image of the sample 1 on the paper 6 while looking through the eyepiece 4. As shown in FIG. 2, the intermediate lens barrel 14 is removed.

Namely, remove the tip barrel 13 from the intermediate lens barrel 14, further remove the intermediate lens barrel 14 from the rear end barrel 15, directly to the rear lens barrel 15, to connect the tip barrel 13 fixed (State of FIG. 2). The optical system of the drawing device at this time is
The relay optical system 10 is different from the state shown in FIG. However, as explained using FIG. 1,
The light that has entered the lens 10a that constitutes the relay optical system 10 exits the lens 10b as light in substantially the same state. Therefore, it can be considered that the image formation relationship of the image of the paper 6 is the same in the case of FIG. 1 with the relay optical system 10 and the case of FIG. 2 without the relay optical system 10. That is, the reflection mirror 7
It can be seen that the position is the same as when the position is translated in the axial direction of the optical axis a2. Therefore, the magnified image of the sample 1 can be sketched by moving the position of the paper 6 from the position of FIG. 1 to the position of FIG. 2 without changing the imaging relationship of the optical system.

As described above, according to the drawing apparatus of the first embodiment, the position of the paper 6 can be moved only by attaching / detaching the intermediate lens barrel 14 without changing the optical system, and the observer's position can be changed. You can adjust the position of the sketched paper to suit your physique. Next, the drawing apparatus of the second embodiment will be described with reference to FIGS. Basically, it is the same as the first embodiment, and only the method of holding the relay optical system is different. In the present embodiment, in the case where it is advantageous to attach each lens forming the relay system 10 to the front lens barrel or the rear lens barrel instead of the intermediate lens barrel in view of the internal component configuration and the ease of obtaining accuracy. There is, and it corresponds to this.

The drawing apparatus 20 according to the second embodiment has a tip barrel 2.
7, an intermediate lens barrel 28, and a rear lens barrel 29, which are attached to a predetermined position of the microscope as in the first embodiment, and the reflecting mirror 2
1, a first imaging optical system 22, a relay optical system 24, a second imaging optical system 25, and a prism 26. In this drawing apparatus, the lens 24a of the relay optical system 24 is provided at the rear end barrel 29
The lens 24a is fixed to the side by a pressing ring 24c. The other lens 24b of the relay optical system 24
Is fixed to the intermediate lens barrel 28. The image on paper 6 is mirror 21
And is imaged on the image plane 23 by the first imaging optical system 22. In the relay optical system 24, the lens 24b collimates the light from the image plane 23 into a parallel light beam, and the lens 24a again forms the lens 24b.
The light beam is diverged into substantially the same light flux as when it was incident on. The emitted light beam is condensed by the second imaging optical system 25 and forms an image on the image plane 3 via the prism 26.

The intermediate lens barrel 28 can be removed in the same manner as described with reference to FIGS. 1 and 2, and FIG. 4 shows a state in which the intermediate lens barrel 28 and the lens 24a are removed from FIG. At this time, the lens 24a is removed by removing the pressing ring 24c. The relationship between the image on the image plane 23 and the second imaging optical system 25 is the same as the relationship between the image plane 9 and the second imaging optical system 11 in the first embodiment.
The image forming relationship is the same regardless of the presence or absence of the relay optical system.

The drawing apparatus of the second embodiment has the first
As in the embodiment, the position of the paper can be adjusted according to the observer.
Further, the lens 24a of the relay optical system is held by the rear end lens barrel 29, whereby the position of the lens 24a is set to the second position.
Positioning can be performed accurately according to the imaging optical system. Therefore, it is possible to deal with a solid error between the intermediate lens barrel 28 and the rear lens barrel 29, and the processing accuracy of the lens barrel can be relaxed.

Next, the drawing apparatus 30 of the third embodiment will be described with reference to FIG. The drawing device 30 is configured such that the lenses 34 a and 34 b of the relay optical system 34 are fixed to the rear end barrel 39 and the front end barrel 37. More specifically, the distal lens barrel 37 reflects the image from the paper surface 6, the reflection mirror 31, the first imaging optical system 32 that forms the reflected image on the image surface 33, and the image from the image surface 33. , The convex lens 3 of the relay optical system 34 that makes an infinite distance system (parallel system) that does not form an image
4b and are held. This tip barrel 37 is the intermediate barrel 3
8 and is fixed by a fixing member (not shown), the intermediate lens barrel 38 does not hold the optical member, and the rear lens barrel 3
9 is fitted and fixed. The rear end barrel 39 is the lens 3
4a, a second imaging optical system 35, and a prism 36. The lens 34a is the lens 3 of the relay optical system 34.
The infinity system from 4b is emitted as a finite system (divergence in this case), and the emitted image is formed by the second imaging optical system 35. At this time, an image is formed on the image plane 3 by being reflected by the prism 36.

Here, the lens 34a of the relay optical system 34
Between 34 and 34b is configured to be an infinity system,
The imaging relationship does not change regardless of the distance between both lenses. Therefore, as shown in FIG. 6, the intermediate lens barrel 38 may be removed, and the front lens barrel 37 may be directly fitted to the rear lens barrel 39 and fixed. Further, another intermediate lens barrel having the same size may be brought, and two intermediate lens barrels may be inserted between the rear end lens barrel 39 and the front end lens barrel 37.

[0019]

The drawing apparatus of the present invention is provided with a removable relay system so that the distance between the sample and the position of the paper on which the drawing is performed and the distance between the observer's eyes and the paper are changed. can do. Further, by using a parallel optical system as the relay system, the distance between the relay systems can be arbitrarily changed, and the distance between the sample and the position of the paper, that is, the drawing surface can be arbitrarily set.

[Brief description of drawings]

FIG. 1 is a sectional view showing a drawing apparatus of a first embodiment.

FIG. 2 is a diagram showing another state for explaining the drawing apparatus of the first embodiment.

FIG. 3 is a sectional view showing a drawing apparatus according to a second embodiment.

FIG. 4 is a diagram showing another state for explaining the drawing apparatus of the second embodiment.

FIG. 5 is a sectional view showing a drawing apparatus of a third embodiment.

FIG. 6 is a diagram showing another state for explaining the drawing apparatus of the third embodiment.

FIG. 7 is a diagram showing a conventional example.

[Explanation of symbols]

1 ... specimen 2 ... Objective lens 3 ... Image plane of objective lens 2 5: Drawing device 6 ... Paper surface (drawing surface) 7 ... Reflective mirror 8 ... First imaging optical system 9 ... Image plane 10 ... Relay optical system 11 ... Second imaging optical system 12 ... Prism 13 ... Third lens barrel 14 ... Second lens barrel 15 …… First lens barrel

Claims (5)

(57) [Claims] 1. An image of the drawing surface is formed so as to be attached to a microscope having an observation optical system for observing the image of the sample, and to superimpose the image of the drawing surface on the image of the sample observed by the observation optical system. In a microscope drawing device provided with a drawing optical system, the drawing optical system is provided with a relay system detachably provided in an optical path for forming an image of a drawing surface. apparatus. 2. The drawing apparatus for a microscope according to claim 1, wherein the relay system includes a parallel optical system, and an optical path length of the parallel optical system can be changed. 3. The first drawing device is held by a microscope.
A lens barrel, a second lens barrel detachably held by the first lens barrel, and a third lens barrel selectively detachably held by both the first lens barrel and the second lens barrel. The drawing optical system according to claim 1, wherein the drawing optical system is provided in the first barrel and the third barrel, and the relay system is provided in the second barrel. apparatus. 4. The first drawing device is held by a microscope.
A lens barrel, a second lens barrel detachably held by the first lens barrel, and a third lens barrel selectively detachably held by both the first lens barrel and the second lens barrel. The drawing optical system is provided in the first lens barrel and the third lens barrel, and the relay system includes a first lens that collimates light from the third lens barrel into a parallel system, and the first lens. A second lens that makes light from a finite system into a finite distance system, the first lens is held by the second lens barrel, and the mounting position of the second lens can be adjusted on the first lens barrel. It attaches, The claim 1 characterized by the above-mentioned.
The microscope drawing device described. 5. The first drawing device is held by a microscope.
A lens barrel, a second lens barrel detachably held by the first lens barrel, and a third lens barrel selectively detachably held by both the first lens barrel and the second lens barrel. The drawing optical system is provided in the first lens barrel and the third lens barrel, and the relay system includes a first lens that collimates light from the third lens barrel into a parallel system, and the first lens. A second lens that makes light from a finite system into a finite distance system, the first lens is held by the third lens barrel, and the second lens is held by the first lens barrel. The drawing device for a microscope according to claim 1.