JP2001228408A - Microscope and its transmission illumination condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microscope which is capable of lowering a specimen placing surface, has the illumination performance equal to that of the conventional microscope, is small in size and low in cost and has good operability. SOLUTION: The microscope which has a mirror 5 for deflecting the light from an illumination light source 1 toward an objective lens 39 and illuminates the specimen through a condenser lens 9 disposed above the mirror 5 has a stage bracket 34 which is disposed atop a base section 35 in order to fixely hold a stage 33 to be placed with the specimen 32 in an optical axis m direction of the objective lens 39, a condenser body 6 which is arranged atop the base section 34, a condenser lens holding member 10 which is disposed at the condenser body 6 and holds the condenser lens 9 and a vertical moving mechanisms 12 and 16 which vertically move the condenser lens holding member 10 and focusing mechanisms 65, 66, 67, 68, 36, 37 and 38 for moving the objective lens in the optical axis m direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an upright microscope and a transmission illumination condenser used therein.

[0002]

2. Description of the Related Art Conventionally, an upright microscope equipped with transmitted illumination (conventional example 1) has a base section 201, a condenser section 202 and a stage section 203 between a desk surface and a specimen as shown in FIG. And the height to the specimen is generally about 200 mm from the desk surface.
The base unit 201 requires a space for disposing a collector lens and a relay lens (not shown) for efficiently guiding light from a light source (not shown) to the sample. The condenser unit 202 is adapted to be compatible with various speculums such as a phase-contrast microscope and a dark-field microscope, or to be easily exchanged with a dedicated condenser corresponding to the magnification and type of the objective lens 211 so that the condenser 212 can be moved up and down. A space for securing the stroke and securing the vertical stroke of the stage 213 is required. Also, the stage unit 203
The space for securing the rigidity of the stage 213 is required.

[0003] In any case, a focusing handle 214 for focusing on the specimen and a stage handle 215 for adjusting the observation position of the specimen are placed on a desk so that they can be easily operated while remaining on the desk with the hands as little as possible. It is arranged 60 to 80 mm from the upper surface. Therefore, the distance from the focusing handle 214 or the stage handle 215 to the upper surface of the stage 213 is 120 to 140 mm.

[0004] As a "microscope with a focusing mechanism", a technique (conventional example 2) described in Japanese Patent No. 2966614 (registered on August 13, 1999) is disclosed. FIG. 4 of this patent publication discloses a revolver up / down microscope in which an objective lens moves up and down, and a stage 38 'is held by a stage receiver 41 fixed to the upper surface of the base. The capacitor 39 'is also held in the stage receiver 41.

[0005] Further, an "optical microscope" is disclosed in
The technology (conventional example 3) described in Japanese Patent No. 174977 is disclosed. In FIG. 5 of this publication, a mounting unit 41 of a capacitor unit is mounted with a gap to a mounting table 40 fixed to the upper surface of a microscope base, and the mounting unit 41 is movable within the range of the gap. Has become.

[0006] As a "illumination optical system for a microscope", a technique (conventional example 4) disclosed in Japanese Patent Application Laid-Open No. 7-56091 is disclosed. This optical system is a condenser optical system that shortens the distance from the light source to the sample position.The relay lens that forms the light source image at the aperture stop position is divided into two, and they are arranged before and after the reflecting mirror, respectively. It has a configuration.

[0007]

However, the above conventional example has the following problems. That is,
In Conventional Example 1, as shown in FIG. 18, when exchanging a sample during observation, once the hand is released from the focusing handle 214 or the stage handle 215, the sample placed on the stage 213 is removed, and the next sample is removed. An operation of holding the device and placing it on the upper surface of the stage 213 occurs. At this time, the focusing handle 214
Alternatively, if the distance from the stage handle 215 to the upper surface of the stage 213 is far, the moving distance becomes long. In a clinical test, a huge number of specimens, from several hundred to more than 1,000 specimens, are exchanged per day. Therefore, if the moving distance of the hand is long, fatigue due to the exchange of specimens may be accumulated or annoying. That is, the distance from the focusing handle 214 or the stage handle 215 to the upper surface of the stage 213 is preferably as short as possible.
The stage height from the desk top is 200m
In the microscope of m, the moving distance is as long as 120 to 140 mm.

In the configuration of the conventional example 1, the upper surface of the stage 213 cannot be arranged at about 130 mm from the upper surface of the desk from the following points. In order to reduce the space of the base unit 201, it is conceivable to provide a light-emitting flat plate or the like using a fluorescent lamp below the stage 213 or the condenser 212 without passing the illumination light emitted from the light source through the base unit 201. However, the conventional illumination performance cannot be ensured, for example, the brightness is reduced or the numerical aperture of the objective lens is not satisfied. Further, since an operation ring 216 for a field stop is generally provided on the upper surface of the base portion 201 below the condenser 212, a space corresponding to the operation ring 216 must be secured.

In order to reduce the space of the condenser section 202, the condenser section 202 may be lowered together with the stage 213 so as to reduce the space below the condenser 212. For this reason, it is conceivable to reduce the vertical stroke of the condenser 212. If the vertical movement stroke of the condenser 212 is reduced, it becomes impossible to replace the condenser with a dedicated condenser corresponding to various types of speculum. Also,
When the space below the condenser 212 decreases, the stage 21
The vertical movement stroke of No. 3, ie, the focusing guide stroke, is also reduced at the same time. Also, stage section 2
In order to reduce the space of No. 03, the stage 213 itself must be thinned, which causes a problem that stage performance is deteriorated such as a reduction in stage rigidity.

In Conventional Example 2, even in a revolver up / down microscope, the condenser is held from the side by the stage receiver and is separated from the upper surface of the stage.
It is difficult to reduce the height of the specimen mounting surface.

In the conventional example 3, the condenser is directly mounted on the upper surface of the stage. However, the condenser is of a stage up-and-down type. Since it is configured to be movable, the specimen mounting surface cannot be lowered.

In the prior art 4, the effect of lowering the sample mounting surface on the desk by the optical system for shortening the distance from the light source to the sample position is disclosed. However, the configuration as an actual microscope is disclosed. There is no.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention according to claims 1, 2 or 3 is to make it possible to lower the sample mounting surface and to reduce the number of samples. An object of the present invention is to provide a small, inexpensive, and easy-to-operate microscope having the same illumination performance.

An object of the invention according to claim 4 is to provide a transmitted illumination condenser mountable on the microscope according to the invention according to claim 1, 2 or 3.

[0015]

In order to solve the above-mentioned problems, the invention according to claim 1, 2 or 3 has a mirror for deflecting light from an illumination light source toward an objective lens. In a microscope that illuminates a sample through a condenser lens disposed above, a stage receiver provided on an upper surface of a base portion for holding a stage on which the sample is mounted in a fixed direction with respect to an optical axis direction of the objective lens. A condenser main body disposed on the upper surface of the base portion, a condenser lens holding member provided on the condenser main body for holding the condenser lens, an up / down mechanism for vertically moving the condenser lens holding member, and the objective lens Focusing mechanism for moving the lens in the optical axis direction.

According to a fourth aspect of the present invention, there is provided a fixed frame fixed to a main body base portion of a microscope, a centering frame rotatably mounted on the fixed frame, and an adjustable frame disposed on the centering frame. In a transmission illumination condenser of a microscope having a simple aperture stop, a fixed guide integrally formed with the centering frame and vertically suspended along a side surface of the main body base portion, and movably supported by the fixed guide. A moving guide; a lens holding frame supported by the moving guide; a condenser lens group mounted on the lens holding frame; and a moving mechanism for vertically moving the moving guide.

In the microscope according to the first, second or third aspect of the present invention, the stage is fixedly held on the stage receiver provided on the upper surface of the base portion, and the condenser lens and its holding member are mounted on the upper surface of the base portion inside the stage and the stage receiver. The illumination optical system is lowered, and the conventional illumination performance is maintained. Further, even if the focal position of the condenser shifts due to a change in the sample thickness or the like, the adjustment can be performed by the up-and-down mechanism of the condenser lens holding member that holds the condenser lens.

In the microscope according to the second aspect of the present invention, in addition to the above operation, the stage receiver is provided behind the condenser body,
With the cantilever shape attached to the base portion, each member of the transmitted illumination condenser can be stored and exchanged in the space of the cantilever shape.

In the microscope according to the third aspect of the present invention, in addition to the above-described operation, the condenser lens holding member is configured to be rotatable, and the condenser lens is detachable from the illumination optical path, so that the condenser lens can be replaced with an objective lens having a different magnification. However, the condenser lens can be easily inserted into and removed from the illumination optical path in a small space.

According to a fourth aspect of the present invention, there is provided a transmission illumination condenser for a microscope, wherein the fixed guide is formed integrally with the centering frame and is vertically suspended along the side surface of the main body base portion, and is movably supported by the fixed guide. Moving guide, a lens holding frame supported by the moving guide, a condenser lens group mounted on the lens holding frame, and a moving mechanism for moving the moving guide up and down. Thus, the guide length for the vertical movement of the condenser lens group can be sufficiently taken and stabilized, and a space for operation can be increased.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to an embodiment of the present invention, a vertical movement stroke of a transmitted illumination condenser according to the present invention will be described. The focusing handle and the stage handle in the upright microscope are 60-80 from the desk top for operation.
In order to shorten the distance between the upper surface of the stage and the handle, it is necessary to bring the upper surface of the stage closer to the handle. At this time, it is necessary to shorten the entire length of the stage handle held on the stage.
Ideally, the height of the stage top should be the same as the focus handle and the height of the stage handle.However, the focus handle interferes with the stage, and the stage handle is located below the stage top due to its structure. Since there is no other choice but to dispose 60 to 80 mm from the desk top, there is a problem that the stage top is preferably about 130 mm from the desk top. Therefore, in consideration of reducing the space of the capacitor section, it is preferable that the vertical movement stroke of the capacitor is also set to the minimum necessary value.

The condenser vertical movement stroke is required as a correction for a change in the thickness of the slide glass, excluding the stroke for replacing the condenser. Generally, the thickness of a slide glass used for a clinical test or the like is 0.9 to 1.
4 mm, with a standard thickness of 1 mm. If the thickness of the slide glass is 1 mm and the vertical position of the condenser is adjusted, the thickness of the slide glass becomes 0.9 mm.
mm, the refractive index nd of the glass is set to 1.5, and the amount of change in air conversion length = t × nd = (0.9−1) × 1.
5 = −0.15 mm, and the distance between the sample and the condenser needs to be reduced by 0.15 mm. Conversely, the thickness of the slide glass is 1.4m
m, the amount of change in air-equivalent length = (1.4-1) × 1.5 = 0.6
mm and the distance between the specimen and the condenser needs to be extended by 0.6 mm. Therefore, the vertical stroke of the capacitor is
It is a good calculation if the total is 0.75 mm. Actually, considering the dimensional variation and the ease of assembling, a margin of 1 mm or more for each of the upper and lower sides is sufficient, and about 3 mm is sufficient.

Hereinafter, specific embodiments will be described.

(Embodiment 1) FIGS. 1 to 5 show Embodiment 1, FIG. 1 is a side view of an upright microscope, FIG. 2 is a side sectional view of an upright microscope, and FIG. FIG. 4 is a bottom view of a transmission microscope, FIG.
FIG. 3 is a perspective view of a pupil modulation optical element, a slider, and a centering tool.

In FIG. 1, the upright microscope mainly includes a microscope main body 60, a base 35 as a base protruding from a lower portion of the microscope main body 60, a stage receiver 34 fixed on the base 35, a stage A stage 33 fixed on a receiver 34, a revolver 37 fixed to a focusing guide 36 (see FIG. 2) built in the microscope main body 60, a revolver 38 attached to the lower surface of the revolver 37, and a revolver 38 A plurality of objective lenses 39, an arm 61 projecting from an upper portion of the microscope main body 60, a lens barrel 62 mounted on the arm 61, and an eyepiece 63 mounted on the lens barrel 62. It is composed of The distance from the bottom surface 35a of the upright microscope to the upper surface 33a of the stage 33 is set to about 130 mm. Also, base 35
A focusing handle 64 for moving the objective lens 39 up and down, and an FS lever 48 for operating the field stop 3 (see FIG. 2) are disposed on the side of the. Further, the stage receiver 34
On the side of the lens C, which moves up and down a condenser front lens 9 (see FIG. 4) of a transmission illumination condenser 40 (see FIG. 4) described later.
A D lever 16 is provided.

In FIG. 2, an illumination optical system is provided inside a base 35, and a light source lamp 1 as an illumination light source for emitting illumination light, and a collector for condensing illumination light from the light source lamp 1 A lens 2, a field stop 3 for stopping the collected illumination light, a relay lens 4 for guiding the illumination light, and a folding mirror 5 for bending the illumination light upward are provided. A condenser pedestal surface 52 is formed on the upper surface of the base 35 above the mirror 5, and the transmitted illumination condenser 40 (see FIG. 4) is mounted on the condenser pedestal surface 52 so as to be movable in the horizontal direction. The centering seat 6 as a condenser body of the transmitted illumination condenser 40 is provided with a CD centering knob 30 and a plunger 31 disposed on a stage receiver 34 arranged on the outer periphery of the transmitted illumination condenser 40.
Thus, the centering seat 16 can be moved in the horizontal direction with respect to the observation optical axis m as the optical axis of the objective lens, and the center of the field stop 3 can be made to coincide with the observation optical axis m.

As shown in FIG. 2 and FIG.
Is provided with an aperture ring 3A. By rotating the aperture ring 3A, a plurality of aperture blades (not shown) are opened and closed. A ball-shaped tip 4 is provided on the aperture ring 3A.
A pivot 45 having a 5a is fixed, and a U-shaped sliding portion 49 of an FS lever 48 as an operation lever engages with a distal end portion 45a of the pivot 45, and the FS lever 4
By turning 8, the aperture ring 3A is turned. F
The S lever 48 is connected to the bottom plate 4 attached to the lower portion of the base 35.
6 is rotatably attached via a shaft 47 to an outer peripheral portion 48.
The field stop 3 can be operated by exposing “a” on the side surface of the base 35 and turning this part by the observer. The FS lever 48 may be provided with an operation portion 48b as shown by a broken line in FIG. 3 so as to be exposed on the front side of the base 35 so that the field stop can be adjusted from the front side of the microscope.

As shown in FIG. 2, the revolving die 37 is fixed to a vertically movable focusing guide 36, and a rack 68 is mounted below the focusing guide 36. A small gear 65 is fixed coaxially with the focusing handle 64 (see FIG. 1) described above.
A large gear 66 serving as an intermediate gear and a pinion 67 are coaxially arranged between the small gear 65 and the rack 68. The small gear 65 meshes with the large gear 66, and the pinion 67
8 is engaged. By rotating the focusing handle 64, the rotational motion is changed to the small gear 65, the large gear 66, and the pinion 6.
7, the rack 68, the focusing guide 36 moves up and down, and the revolver 37, the revolver 38 and the objective lens 3
9 moves up and down to focus the objective lens 39 on the sample 32 on the stage 33. Focusing handle 64, small gear 6
5, the large gear 66, the pinion 67, the rack 68, the focusing guide 36, the revolving die 37 and the revolver 38 constitute a focusing mechanism.

Next, the transmission illumination condenser 40 will be described. A large space is formed inside the stage receiver 34, and the transmitted illumination condenser 40 is disposed inside the space. The transmitted illumination condenser 40 is mounted on the microscope main body 60 so that it can be centered in this space as described above.
Is held on the upper surface of the base 35. As shown in FIG. 4, the illumination optical axis n of the centering seat 6 of the transmission illumination condenser 40 is shown.
A first condenser lens 7 is provided above. A slide dovetail 13 is provided on the upper side surface of the centering seat 6, and the slider frame 12 is held by the slide dovetail 13 so as to be vertically movable. The slider frame 12 is arranged near the position of the rear focal plane 8. A rack 14 is mounted on the slider frame 12, and the rack 14 is engaged with a pinion 15 mounted coaxially with a CD lever 16 mounted on the centering seat 6. By rotating the CD lever 16,
The slider frame 12, the below-described stalk strut 10, the condenser front ball 9, and the rear focal plane 8 can be moved up and down.
The focal position of the illumination light can be corrected according to the thickness of the slide glass. CD lever 16, pinion 15,
The rack 14, the slide dovetail 13 and the slider frame 12 constitute a vertical mechanism.

A support arm 12a is suspended from the side surface (the rear surface side in FIG. 4) of the slider frame 12, and a stake column 10 as a condenser lens holding member is rotatably held around a fulcrum 11 as a rotation center. ing. Bosh column 10
A condenser front lens 9 as a condenser lens is fixed on the illumination optical axis n at the upper end of the lens. Further, a lower end lever 17 is attached to a lower end portion of the upper column 10, and when the lower lever 17 is rotated to the rear side, the front end 9 of the condenser can be moved to a position indicated by a two-dot chain line on the front side. Can be removed from the optical path. As shown in FIG. 2, the relay lens 4 and the first condenser lens 7
Converts the illumination light from the collector lens 2 into an image at the position of the rear focal plane 8 of the condenser, and converts the image of the field stop 3 into a parallel light beam. The condenser front lens 9 converts the illumination light from the first condenser lens 2 into a parallel light flux and guides it to the sample, and forms an image of the field stop 3 on the observation position of the sample 32.

As shown in FIG. 4, the slider frame 12 has
A slider 18 is fitted movably in the horizontal direction.
A click ball 19 is disposed on the side surface of the slider frame 12 so as to be urged inward. As shown in FIG. 5, the click ball 19 engages with the click grooves 20a and 20b of the slider 18, and the observation optical axis m (see FIG. 2) and the center of the slider hole 21 or the center of the aperture stop 22. Aperture stop 2
2 can be opened and closed by operating the AS lever 23. A pupil modulation optical element 28 is inserted into the slider hole 21, and a centering spring 26 and a centering knob 27 are embedded therein. After the pupil modulation optical element 28 is inserted into the slider hole 21, the center of the pupil modulation optical element 28 can be precisely aligned with the observation optical axis m using the centering tool 29. The pupil modulation optical element 28 is of a type corresponding to various speculum.

Next, the operation of the upright microscope will be described. First, in the illumination optical system, in FIG. 2, the illumination light emitted from the light source lamp 1 is condensed by the collector lens 2, passes through the field stop 3 and the relay lens 4, and is bent upward by the turning mirror 5. Further, the illumination light that has passed through the first condenser lens 7 fixed to the centering seat 6 and the condenser front lens 9 through the rear focal plane 8 of the condenser illuminates the sample 32 placed on the stage 33. I do. When the magnification of the objective lens 39 is 4 to 100 times in a bright field, observation is performed by placing the condenser front lens 9 in the illumination optical path. At this time, the light of the condenser 40 is set by the centering knob 30. The axis n (see FIG. 4) coincides with the observation optical axis m, and the condenser 40 can be focused by moving the slider frame 12 up and down by operating the CD lever 16.

When the magnification of the objective lens 39 is extremely low, less than 4 times, as shown in FIG.
By operating the lens 7, the condenser front lens 9 can be removed from the illumination optical path and observed. In addition, an aperture stop can be used by fitting the slider 18 into the slider frame 12 and putting the aperture stop 22 in the illumination optical path. Further, the pupil modulation optical element 28 is inserted into the slider hole 21 and the slider hole 21 is inserted.
Can be observed by a microscopic method such as a phase difference by inserting it into the illumination optical path.

According to this embodiment, the space of the condenser section can be reduced while satisfying the illumination performance according to the microscopy method and the magnification of the objective lens. 130 from the bottom of the microscope)
mm, and the distance from the focusing handle and the stage handle to the upper surface of the stage can be shortened. Further, since the slide dovetail, the CD lever, and the centering sliding surface of the transmitted illumination condenser are handled by the centering seat, the number of parts can be reduced, and the cost can be reduced.

(Embodiment 2) FIGS. 6 and 7 show Embodiment 2; FIG. 6 is a side view of a part of a transmission illumination capacitor cut away; and FIG. FIG. This embodiment is different from the first embodiment only in the transmission illumination condenser, and the other parts are the same as the first embodiment. Therefore, only the different parts will be described, and the drawings and the description of the other parts will be omitted. Also in FIG. 6, the same members as those of the transmitted illumination condenser 40 of the first embodiment include:
The same reference numerals are given and the description is omitted.

In FIG. 6, a slide dovetail 13 is provided on an upper side surface of the centering seat 6 of the transmitted illumination condenser 50, and the slide dovetail 13 is provided on the slide frame 12 of the first embodiment.
Instead, the capacitor receiver 51 is held movably up and down. The rack 14 is mounted on the capacitor receiver 51, and the rack 14 is mounted on the CD lever 1 mounted on the centering seat 6.
6 meshes with a pinion 15 mounted coaxially. The condenser receiver 51 is provided with a bottomed hole 51a coaxial with the illumination optical axis n. On the other hand, a condenser holding portion 52 is provided in series with the condenser front lens 9, and a third condenser lens 53 is arranged on the illumination optical axis n. The outer periphery of the capacitor holding portion 52 is
1a is dropped and fitted and positioned and fixed. Other configurations are the same as those of the first embodiment.

According to the present embodiment, in addition to the effects of the first embodiment, the capacitor holding section 52
As long as the condenser lens has compatibility with the objective lens, it can be replaced freely, and furthermore, by preparing a condenser lens that is finely matched to the performance of various objective lenses, the illumination performance can be improved. .

In place of the third condenser lens 53 of the present embodiment, as shown in FIG. 7, a transmission illumination condenser 54 having an aperture stop 55 and a slot 56 for inserting an optical element slider may be used. it can. In this case, the capacitor receiver 51 is provided with a relief 51b for making the optical element slider usable. With such a transmission illumination condenser 54, the condenser can be exchanged according to the type of the objective lens to be used, and the use of an aperture stop and the use of a ring slit or a filter mounted on an optical element slider can be used. .

(Third Embodiment) FIGS. 8 to 11 show a third embodiment, FIG. 8 is a side view of a microscope for pathological examination, and FIG. 9 is a perspective view showing a mounting relationship between a transmission illumination condenser and a stage receiver. , FIG. 10 is a side sectional view of a transmitted illumination condenser,
FIG. 11 is a front view of a part of the transmitted illumination condenser cut away. The microscope for pathological examination as an upright microscope according to the present embodiment has the transmission illumination condenser according to each of the third to fifth embodiments. Note that, in the present embodiment, the description will be made on the assumption that the stage is mounted on a microscope for pathological examination. It is possible to mount the transmitted illumination condensers of the embodiments 3 to 5.

In FIG. 8, a stage base 18 is provided on a main body base 181a as a base of the microscope main body 181.
2 is fixed, and a stage 183 is
Are detachably attached. The revolver 184 is attached to a guide mechanism (not shown) built in the microscope main body 181. By operating the focusing handle 185, the guide mechanism is moved by a movement mechanism such as a rack and pinion (not shown), and the revolver 184 is moved up and down. Move. Focusing handle 185, moving mechanism, guide mechanism and revolver 1
A focusing mechanism 84 is formed. Reference numeral 186 denotes a transmission illumination capacitor according to the present invention. The figure shows the transmission illumination capacitor according to the fifth embodiment. The transmission illumination capacitors according to the third and fourth embodiments are also arranged at this position. However, since it will be described in each embodiment described later, detailed description here is omitted.

In FIG. 9, the stage receiver 182 includes a disk-shaped stage mounting portion 182b having a light flux hole 182a formed in the center of the upper surface, and is fixed to the main body base portion 181a by the legs 182c. The leg 182c is provided only on the rear side of the stage receiver 182, and the stage 183 is supported in a cantilever structure. The transmitted illumination condenser 186 is arranged in a space opened below the stage mounting portion 182b by the cantilever structure of the stage receiver 182, and is mounted on the upper surface of the main body base portion 181a. As the transmitted illumination condenser 186, FIGS.
The one shown in FIG. 17 can be used.

In the pathological examination microscope configured as described above, the illumination light beam emitted from the light source lamp 190 is applied to the illumination optical systems 192 and 19 built in the main body base 181a.
3, 194, 195 through the transmitted illumination condenser 186
The sample placed on the upper surface of the stage 183 is illuminated via the condenser lens group 116 of FIG. The revolver 18 can be focused on the specimen by operating the focusing handle 185.
4 by moving the objective lens 187 attached to the revolver 184 and the eyepiece 1 attached to the lens barrel 188.
89. In this microscope for pathological examination, the stage 183 is used to reduce the height of the stage surface.
The space LL between the lower surface and the upper surface of the main body base portion 181a is configured to be very small.

Next, the transmitted illumination condenser mounted on the above-mentioned microscope for pathological examination will be described. 10 and 11, the fixed frame 101 includes a main body base 181.
a fixed frame 1
In 01, a centering frame 102 as a capacitor main body is supported by a holding plate 103 so as to be horizontally movable. A spring cylinder 104 is slidably attached to the centering frame 102, and a spring 105 is mounted inside.
A spring lid 106 is screwed to the centering frame 102 to support the spring 105 by compressing the spring 105 to urge the spring cylinder 104. A pair of right and left centering screws 107 is screwed to the center of the centering frame 102 on the opposite side of the centering frame 102 on which the spring cylinder 106 is arranged, and the centering screw 107 resists the urging force of the spring 105. Centering frame 1 so that 107 moves back and forth
02 is mounted on the fixed frame 101 so as to be centerable.

On the upper surface of the centering frame 102, an aperture stop frame 1 is provided.
Reference numeral 08 is fixed to the centering frame 102 concentrically with a small screw 102A, and an aperture operation ring 109 is rotatably fitted on the outer periphery of the aperture stop frame 108. Aperture stop frame 1
08 and the aperture operation ring 109, a plurality of aperture splashes 1
10, a pair of dowels 111 are fixed to the upper and lower apertures 110. One of the dowels 111 is rotatably fitted into a hole formed in the aperture stop frame 108,
The other of the apertures 1 is engaged with a groove formed in the aperture operation ring 109. When the aperture operation ring 109 is rotated, a plurality of aperture splashes 1 are formed.
An aperture stop 10, which is an iris stop capable of adjusting the size of the aperture by operating the aperture stop 10, is constituted. The interposition position of aperture stop 110 is arranged so as to substantially coincide with the rear focal plane of condenser lens group 116 described later. Aperture stop frame 108
A dustproof glass 112 is fixed to the upper surface of the.

The centering frame 102 includes a main body base 181.
A fixed guide 102a as a capacitor body is vertically provided integrally with the centering frame 102 along the side surface of a. A moving guide 114 is fitted to the fixed guide 102a via a roller 113 so as to be vertically movable. Moving guide 11
A lens holding frame 115 as a condenser lens holding member is attached to 4 by a bolt 114A, and a condenser lens group 116 as a condenser lens is mounted on the lens holding frame 115 and fixed by a set screw 115A. Fixed guide 102a and moving guide 11
4, a moving mechanism 117 as a vertical moving mechanism for moving the moving guide 114 up and down is provided.
The moving mechanism 117 includes a bearing 118 fixed to the moving guide 114, an eccentric shaft 119 rotatably fitted to the bearing 118, a moving handle 120 mounted on the shaft portion 119 a side of the eccentric shaft 119. , The leaf spring 121 interposed between the bearing 118 and the moving handle 120, and the eccentric shaft 1
A bearing 122 rotatably fixed to the eccentric distal end 119b of the T.19, and an elongated hole 102b provided in the fixed guide 102a so that the bearing 122 is movably engaged with the bearing 122 horizontally.
(See FIG. 10).

Next, the operation of the transmission illumination condenser having the above configuration will be described with reference to FIGS. The illumination light beam emitted from the light source 190 built in the main body base 181a passes through the illumination optical systems 192, 193, 194, and 195, passes through the condenser lens group 116, and passes through the stage 18
3 Illuminate a specimen (not shown) placed on the upper surface. At this time, the aperture operation ring 109 is operated to change the diameter of the aperture stop and adjust the numerical aperture of the illumination light. Since the centering frame 102 is constantly urged against the fixed frame 101 by the spring cylinder 104 and the spring 105, the centering screw 107 is operated to move the centering frame 102, and the horizontal condenser lens group 116 is moved. Do the centering of.

Next, when the movable handle 120 attached to the eccentric shaft 119 is rotated, the eccentric distal end 1 of the eccentric shaft 119 is rotated.
Since the bearing 122 rotatably fixed to the fixed guide 19b is engaged with the elongated hole 102b of the fixed guide 102a so as to be horizontally movable, the moving guide 114 is twice the eccentric amount E of the eccentric distal end portion 119b with respect to the shaft portion 119a. Only move up and down. The vertical movement of the movement guide 114 causes the movement guide 11 to move.
4, the condenser lens group 116 moves up and down,
Focusing of the field stop is performed. Since the moving handle 120 is configured so that the brake is operated by the leaf spring 121, the moving handle 120 does not naturally move. In a pathological examination microscope in which a large number of specimens are observed while being replaced, most of the specimens are slide glass specimens. Since the necessary moving range for focusing is about 1.5 to 3 mm, even the above-described eccentric moving mechanism can sufficiently perform its function.

According to the present embodiment, the centering frame 102 is provided with the fixed guide 1 along the side surface of the main body base portion 181a.
02a is integrally suspended, so that the lower surface of the stage 183 and the base portion 18 of the main body are formed to reduce the height of the stage surface.
Even if the distance LL from the upper surface 1a is small, a sufficient guide length can be ensured, and the vertical movement of the condenser lens group 116 is stabilized. In addition, since the guide mechanism is provided along the side surface of the main body base portion 181a, it does not hinder the operation of adjusting the aperture stop. Further, the moving handle 120 does not need to be disposed near the focusing handle as in the conventional example, and is disposed at a sufficiently distant position. Property is obtained. In addition, since the stage receiver has a cantilever shape, the components of the transmitted illumination condenser can be housed in the cantilevered space, and a compact, inexpensive, easy-to-operate microscope having the same illumination performance as the conventional one can be obtained. be able to.

In this embodiment, the moving mechanism 117 is an eccentric moving mechanism, but may be replaced with a known rack and pinion mechanism. In addition, the condenser lens group 116 may be configured to be detachable, so that the condenser lens group having a different numerical aperture can be used while being replaced.

(Embodiment 4) FIGS. 12 and 13 show Embodiment 4, FIG. 12 is a side sectional view of a transmission illumination condenser, and FIG. 13 is a front view in which a part of the transmission illumination condenser is cut off. . The transmitted illumination condenser of the present embodiment is:
Since the holding mechanism of the condenser lens group is different from that of the third embodiment, and the other parts are the same as those of the third embodiment, only different parts will be described, and the same members will be denoted by the same reference numerals and description thereof will be omitted.

In FIGS. 12 and 13, a lens holding frame 131 as a capacitor holding member to which the condenser lens group 116 is mounted is rotatably supported on a shaft 132 screwed to a moving guide 130. A spring 133 is provided between the head 132 a of the shaft 132 and the lens holding frame 131.
Are interposed, and are urged to rotate the lens holding frame 131 without play. A click hole is formed in the lower part of the lens holding frame 131, and a click ball 134 and a click spring 135 are slidably fitted therein. The click ball 134 is urged and engaged by a click groove 130a formed in the movement guide 130 by a spring cover 136 that compresses and supports the click spring 135. The click groove 130a is provided at a position where the lens holder frame 131 is rotated to click-stop when the condenser lens group 116 is inserted into the illumination optical path and when the condenser lens group 116 is separated from the illumination optical path. A stopper screw 137 is screwed into the movement guide 130, and is configured so that fine adjustment of the position is possible when the condenser lens group 116 is inserted into the illumination optical path. The lens holding frame 131 has
A lens insertion / removal knob 131a is integrally formed with the projection, and facilitates insertion / removal of the condenser lens group 116. Other configurations are the same as those of the third embodiment.

Next, the operation of the transmission illumination condenser having the above configuration will be described. By operating the lens insertion / removal knob 131a of the lens holding frame 131, the condenser lens group 116
Is inserted into the illumination optical path, the lens holding frame 131 comes into contact with a stopper screw 137 screwed into the movement guide 130,
Since the click ball 134 is urged by the click spring 135 and engages with the click groove 130a, the position is reproduced even if insertion and removal are repeated without displacement.
When the condenser group 116 is separated from the illumination optical path (FIG. 1)
2 (a position indicated by the two-dot chain line A), it is possible to illuminate the observation range of the ultra-low magnification objective lens of 1.25 times. Other operations are the same as those of the third embodiment.

According to the present embodiment, in addition to the same effects as in the third embodiment, the condenser lens group 116 can be inserted into and removed from the illumination optical path, so that the magnification of the objective lens from a very low magnification to a high magnification can be widened. Lighting that can respond to Further, since the condenser lens group 116 is inserted into and removed from the illumination optical path on the rear side, it does not hinder the operation of the aperture stop.

The modification shown in the third embodiment can be similarly applied to the present embodiment.

(Fifth Embodiment) FIGS. 14 to 17 show a third embodiment, FIG. 14 is a side sectional view of a transmission illumination condenser, and FIG. 15 is a front view in which a part of the transmission illumination condenser is cut. 16 is a top view of the rotating turret of the transmitted illumination condenser, and FIG. 17 is a cross-sectional view taken along the line X-Y of FIG. In the present embodiment, a rotating turret is added to the transmission illumination condenser of the third and fourth embodiments.
Only different parts will be described, and the same members as those in the third and fourth embodiments will be denoted by the same reference numerals and description thereof will be omitted.

In FIG. 14 and FIG.
1, a centering frame 151 is attached so as to be horizontally movable, and a fixed guide 151a is vertically provided along the side surface of the main body base portion 181a on the centering frame 151 as in the third and fourth embodiments. The moving guide 130 and the moving mechanism 117 are disposed on the fixed guide 151a.
Further, the centering frame 151 is formed with a dovetail groove 151c for mounting a rotating turret portion 157, which will be described later, so that the mounting dovetail 158 of the rotating turret portion 157 is fastened and fixed with a fixing screw 156. ing. Further, the centering frame 151 has columns 151d erected on the left and right sides of a rotating turret 157 described later.
A turret cover 152 is attached through the turret cover 152, and a dustproof glass 153 is fixed to the turret cover 152. Note that the centering frame 151 is not provided with an aperture stop, but is provided on a rotating turret 157 described later.

Further, the centering frame 151 is provided with a centering screw (not shown) similar to the centering screw 171 screwed to the turret 159 shown in FIG. When the centering knob 155 is inserted and operated, the centering frame 151 is centered and moved to adjust the centering of the condenser lens group 116 in combination with the action of the spring 105 as in the third and fourth embodiments. be able to.

In FIGS. 16 and 17, a rotating shaft 160 is fixed to a turret 159 of a rotating turret portion 157. A mounting dove 158 is rotatably attached to one of the rotating shafts 160. On the other hand, an aperture stop operation ring 161 is rotatably mounted. Turret 15
A leaf spring 162 is provided between the turret 159 and the aperture ring 161.
3 are interposed to absorb the respective thrust backlash and smoothly rotate. A click spring 165 to which a click ball 164 is fixed is attached to the mounting dove 158, and a click groove 159 formed to correspond to each opening of the turret 159.
a and the click ball 164 are engaged, and the turret 15
Each of the openings 9 is click-stopped on the illumination light path.

The turret 159 is provided with an aperture stop which is an iris stop capable of adjusting the size of the aperture, instead of being provided on the centering frame 2 in the third and fourth embodiments. In this aperture stop, an aperture frame 174 is rotatably disposed on the upper surface of one opening of the turret 159, and between the turret 159 and the aperture frame 174, as in the first embodiment, a plurality of not-shown apertures are provided. And a pair of upper and lower dowels 111 are fixed to this aperture.
A radial groove 174a is formed in the aperture frame 174, and one of the dowels 111 fixed to an aperture spring (not shown) is engaged. The other side of the dowel 111 is a turret 159.
Is rotatably fitted in a hole (not shown) formed in the hole.
A dowel 175 is fixed near the outer periphery of the aperture frame 174, and is engaged with a long hole 161a formed near the outer periphery of the aperture stop operation ring 161. When the aperture stop operation ring 161 is rotated, the aperture frame 174 is rotated, and a plurality of aperture springs (not shown) are operated to constitute an aperture stop capable of adjusting the size of the aperture. The aperture frame 174 is a turret 159
The lifting in the thrust direction is suppressed by the holding plate 176 screwed to the.

At the other opening of the turret 159, ring slit frames 167 and 168 are held by holding springs 169, respectively. The holding spring 169 is fixed to the turret 159 by a holding plate 170. The ring slit frames 167 and 168 are turret 1
The above-described centering screw 171 screwed to the screw 59 is rotated by a detachable centering knob 155, moves against the biasing force of the pressing spring 169, and performs centering. The ring slit frames 167 and 168 can be attached to and detached from the turret 159 by loosening the centering screw 171. Turret 1
In the lower part of the three openings 59, there is a filter pocket 1
59b, respectively, and filter pockets 159b
The ring spring 1 for inserting and holding the filter
72 are mounted. Other configurations are the same as those of the fourth embodiment.

Next, the operation of the transmission illumination condenser having the above configuration will be described. When the turret 159 is turned to insert the aperture stop into the optical path, the turret 159 is click-stopped by the click ball 164. The adjustment of the aperture stop is performed by operating the aperture stop operation ring 161. When the aperture stop operation ring 161 is turned, the aperture frame 174 rotates through the dowel 175 slidably engaged with the long hole 161a. Then, the size of the aperture stop changes. Next, when the turret 159 is turned to insert the ring slit into the optical path, the turret 159 is click-stopped by the click ball 164. The centering of the ring slit is performed by the centering knob 1 for adjusting the centering of the condenser lens group 116.
55 is pulled out from a centering screw (not shown), and as shown in FIG.
168 is inserted into the centering screw 171. After the centering of the ring slits 167 and 168, the centering knob 155 is removed from the centering screw 171 and the turret 1
So that it does not hinder the rotation of 59.

As shown in FIG. 15, the fixing screw 156 screwed into the centering frame 151 is loosened to rotate the turret 157.
Can be removed, and the ring slit frames 167 and 168 can be replaced. That is, the centering knob 155 sufficiently loosens the centering screw 171 (see FIG. 16) of the ring slit, and against the biasing force of the pressing spring 169, the ring slit frame 167,
168 is detached and replaced. The condenser lens group 1
Since the insertion / removal of the 16 into / from the illumination light path is performed on the rear side, the 16 does not interfere with the rotating turret 157. Other operations are the same as those of the fourth embodiment.

According to the present embodiment, in addition to the effect of the fourth embodiment, since the rotating turret 157 is attached to and detached from the centering frame 151 in a slide dovetail manner, the stage 183 is provided to reduce the height of the stage surface. Bottom and body base 181
Even if the interval LL (see FIG. 8) with respect to a is configured to be narrow,
The rotating turret 157 can be easily attached and detached. Only the condenser lens group 116 moves to focus the field stop, and the rotating turret 157 does not move up and down. Therefore, the rotating turret 157 should be made as thin as possible to reduce the height of the stage surface. Can be. In addition, since the centering of the condenser and the centering of the ring slit can be performed from the front, good operability can be obtained even in a narrow space.

The centering knobs 155 are detachable and are commonly used for both centering of the condenser and centering of the ring slit, so that the centering knobs do not hinder the operation. Further, the rotating turret 15
Since you can replace the ring slit frame by removing 7,
A phase difference ring slit corresponding to each magnification from low magnification to high magnification and a dark field ring slit can be attached, so that versatile illumination can be performed. Turret 15
A filter can be attached to each of the openings 9 independently. For example, a dimming filter or a daylight filter is provided in the optical path of the aperture stop, and a green filter for improving contrast is provided in the optical path of the phase difference ring slit. Once installed, the optimum illumination for the observation method can be obtained simply by turning the turret without replacing the filter.

In the present embodiment, the centering frame 151 has
Although the rotating turret 157 is mounted, a detachable slider may be mounted instead, and the ring slit frame may be mounted to and removed from the slider. Further, the modification shown in Embodiment 3 can be applied to this embodiment. Further, in the present embodiment, the case where the condenser lens group 116 is inserted / removed is described as an example. However, the present embodiment can be applied to a case where the condenser lens group is fixed.

Note that, from the specific embodiment described above,
The following technical ideas are derived. (Supplementary note) (1) The microscope according to claim 1, further comprising a centering mechanism for centering the capacitor body by sliding the capacitor body on the upper surface of the base portion.

According to the supplementary note (1), in addition to the effect of the first aspect, it is possible to move the condenser body in the horizontal direction with respect to the observation optical axis m, and to make the center of the field stop coincide with the observation optical axis.

(2) A centering screw for adjusting the centering of the capacitor body is screwed into the capacitor body.
2. The microscope according to claim 1, wherein the centering operation is performed by the tip of the centering screw abutting on a fixed frame fixed on the upper surface of the base portion.

According to the supplementary note (2), in addition to the effect of the supplementary note (1), the centering screw to be screwed into the capacitor body on the upper surface of the base portion is substantially horizontal with the fixing frame also arranged on the upper surface of the base portion. Since it is arranged at the position, the centering adjustment operation becomes smooth.

(3) The centering screw for adjusting the centering of the capacitor main body is screwed into the stage receiver, and the centering operation is performed by the tip of the centering screw contacting the capacitor main body. The microscope according to supplementary note (1), wherein the microscope is configured as described above.

According to the supplementary note (3), in addition to the effect of the supplementary note (1), the centering screw screwed into the stage receiver disposed on the upper surface of the base portion is also substantially horizontal with the capacitor body on the upper surface of the base portion. Since it is arranged at the position, the centering adjustment operation becomes smooth.

(4) The microscope according to claim 1, wherein the stage receiver has a shape surrounding the capacitor body inside.

According to the supplementary note (4), in addition to the effect of the first aspect, since the stage receiver is arranged outside the capacitor body, a large span for supporting the stage can be taken, and the rigidity of the stage is improved.

(5) The microscope according to claim 1, further comprising an adjustable field stop between the illumination light source and the mirror.

According to the supplementary note (5), in addition to the effect of the first aspect, the range of the visual field can be easily enlarged or reduced.

(6) The microscope according to (5), further comprising a relay lens between the field stop and the mirror.

According to the supplementary note (6), in addition to the effect of the supplementary note (5), when the visual field has the same diameter, the illumination light can be collected by the relay lens, so that the visual field can be brightened.

(7) The field stop adjusting mechanism further includes an operation lever disposed below the mirror and protruding from one of the right and left side surfaces and the front surface of the microscope base. Microscope as described.

According to the supplementary note (7), in addition to the effect of the supplementary note (5), since the operation lever is disposed on any one of the right and left side surfaces and the front surface of the microscope base portion, the operation lever is provided from the bottom surface of the microscope base to the top surface of the stage. And the operation of the operation lever becomes easy.

(8) The field stop adjusting mechanism is arranged below the field stop ring for adjusting the aperture of the field stop and the mirror and relay lens for transmitting the operation amount of the operation lever to the field stop ring. (7) The microscope according to (7), further comprising a linked mechanism.

According to the supplementary note (8), in addition to the effect of the supplementary note (7), the link mechanism operating in a narrow space allows
The operation amount of the operation lever is transmitted to the field stop ring, and the field stop can be operated.

(9) A plurality of optical elements can be held, and an optical element turret that can be attached to and detached from the condenser body for inserting and removing these optical elements near the rear focal point of the condenser is provided. The microscope according to claim 1, wherein

According to the supplementary note (9), in addition to the effect of the first aspect, an optical element such as a pupil modulation optical element can be inserted even with a low stage.

(10) In the optical element turret,
The microscope according to (9), further comprising an adjustable aperture stop.

According to the supplementary note (10), in addition to the effect of the supplementary note (9), the brightness of the illumination light can be adjusted.

(11) A plurality of optical elements can be held,
2. The microscope according to claim 1, further comprising an optical element slider detachable from a condenser body for inserting and removing these optical elements near a rear focal position of the condenser.

According to the supplementary note (11), in addition to the effect of the first aspect, an optical element such as a pupil modulation optical element can be inserted even at a low stage.

(12) The microscope according to appendix (11), wherein the optical element slider is provided with an adjustable aperture stop.

According to the supplementary note (12), in addition to the effect of the supplementary note (11), the brightness of the illumination light can be adjusted.

(13) The condenser receiving member according to claim 1, wherein the condenser receiving member includes a vertical operation knob for vertically moving the condenser lens, and the vertical operation knob is disposed outside the stage receiver. microscope.

According to the supplementary note (13), in addition to the effect of the first aspect, the operation of the up / down operation knob becomes easy even on a low stage.

(14) The microscope according to claim 1, further comprising: the condenser lens and a receiving member for positioning and holding the holding member, wherein the condenser lens is configured to be detachable.

According to appendix (14), a condenser lens having another focal length, such as a low distortion condenser for polarization, can be exchanged.

(15) The lens holding frame is rotatably supported by the moving guide, and the condenser lens group mounted on the lens holding frame is inserted into the illumination optical path by the rotation of the lens holding frame. The transmitted illumination condenser for a microscope according to claim 4, wherein the condenser is configured to be detached.

According to appendix (15), in addition to the effect of claim 4, a condenser lens group is inserted in the illumination optical path when a high-magnification objective lens is used, and a condenser lens group is used when a very low-magnification objective lens is used. Since the lens group is separated, illumination corresponding to an objective lens in a wide magnification range from extremely low magnification to high magnification can be performed.

(16) A rotary turret part detachably mounted on the centering frame, an adjustable aperture stop provided on the rotary turret part in place of the centering frame, The transmission illumination condenser for a microscope according to claim 4 or (15), wherein a plurality of detachable ring slit frames are provided on the rotating turret portion so as to be selectively inserted into and removed from the illumination optical path.

According to appendix (16), in addition to the effect of claim 4 or (15), an aperture stop or a ring slit is selectively inserted into and removed from the illumination optical path, and a rotating turret is removed from the centering frame. Since the ring slit is replaced, versatile lighting can be provided.

In each of the embodiments, the condenser lens has been described as having a configuration in which the condenser lens can be centered. However, in the case of a microscope that does not require the centering, the present invention can be implemented even if the adjustment mechanism is omitted. be able to.

[0099]

According to the first, second or third aspect of the present invention, the capacitor body is directly mounted on the upper surface of the base portion,
Since the stage is immovable in the optical axis direction, it can be mounted at the position closest to the condenser lens, so that the height of the desk surface on the sample mounting surface on the stage upper surface can be reduced. Further, adjustment is possible even when the sample thickness changes due to the vertical movement mechanism of the condenser lens, or when the focal position of the condenser is shifted due to a manufacturing error of each component.

According to the second aspect of the present invention, in addition to the above-described effects, each member of the transmissive illumination condenser can be stored and exchanged in a cantilevered space, so that it has illumination performance equivalent to that of the related art and is compact. Thus, a microscope which is inexpensive and has good operability can be obtained.

According to the third aspect of the present invention, in addition to the above effects, even if the objective lens having a different magnification is replaced, the condenser lens can be easily inserted into and removed from the illumination optical path in a narrow space. The illumination means can be quickly changed in accordance with the replacement of the lighting device.

According to the fourth aspect of the present invention, the guide length for the up and down movement of the condenser lens group by the fixed guide and the moving guide is sufficiently taken to be stable, and a large space for operation can be obtained. Even if the present invention is applied to a microscope in which the height of the stage surface is reduced as much as possible in order to improve the operability, a operable and stable transmission illumination condenser can be provided.

[Brief description of the drawings]

FIG. 1 is a side view of an upright microscope according to a first embodiment.

FIG. 2 is a side sectional view of the erecting microscope according to the first embodiment.

FIG. 3 is a bottom view of the erecting microscope according to the first embodiment.

FIG. 4 is a side view in which a part of the transmitted illumination condenser according to the first embodiment is cut away.

FIG. 5 is a perspective view of a pupil modulation optical element, a slider, and a centering tool according to the first embodiment.

FIG. 6 is a side view in which a part of the transmitted illumination condenser according to the second embodiment is cut away.

FIG. 7 is a side view in which a part of a transmitted illumination condenser according to a modification of the second embodiment is partially cut away.

FIG. 8 is a side view of the microscope for pathological examination according to the third embodiment.

FIG. 9 is a perspective view showing a mounting relationship between a transmission illumination capacitor and a stage receiver according to a third embodiment.

FIG. 10 is a side sectional view of a transmitted illumination condenser according to a third embodiment.

FIG. 11 is a front view in which a part of the transmission illumination condenser of the third embodiment is cut away.

FIG. 12 is a side sectional view of a transmitted illumination condenser according to a fourth embodiment.

FIG. 13 is a front view in which a part of the transmitted illumination condenser according to the fourth embodiment is cut away.

FIG. 14 is a side sectional view of a transmitted illumination condenser according to a fifth embodiment.

FIG. 15 is a front view in which a part of the transmitted illumination condenser according to the fifth embodiment is cut away.

FIG. 16 is a top view of a rotating turret of the transmitted illumination condenser according to the fifth embodiment.

FIG. 17 is a sectional view taken along the line XY of FIG. 14 of the fifth embodiment;

FIG. 18 is a side view of an upright microscope of Conventional Example 1.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light source lamp 5 Folding mirror 6 Centering seat 7 1st condenser lens 9 Condenser tip 10 Squeeze column 12 Slider frame 16 CD lever 32 Sample 33 Stage 34 Stage receiver 35 Base 36 Focusing guide 37 Revodie 38 Revolver 39 Objective lens 65 Small Gear 66 Large gear 67 Pinion 68 Rack m Observation optical axis

Claims (4)

[Claims] 1. A microscope having a mirror for deflecting light from an illumination light source in the direction of an objective lens and illuminating the sample through a condenser lens disposed above the mirror, wherein a stage on which the sample is mounted is mounted on the objective. A stage receiver provided on the upper surface of the base portion for holding the lens fixedly in the optical axis direction of the lens, a capacitor body disposed on the upper surface of the base portion, and the condenser lens provided on the capacitor body 1. A microscope comprising: a condenser lens holding member for holding the lens; a vertical mechanism for moving the condenser lens holding member up and down; and a focusing mechanism for moving the objective lens in the optical axis direction. 2. The microscope according to claim 1, wherein the stage receiver has a cantilever shape attached to the base portion behind the capacitor body. 3. The microscope according to claim 1, wherein the condenser lens holding member is configured to be rotatable, and the condenser lens is detachable from an illumination optical path. 4. A fixed frame fixed to a base portion of a main body of a microscope, a centering frame movably mounted on the fixed frame,
A transmission illumination condenser for a microscope having an adjustable aperture stop disposed on the centering frame, comprising: a fixed guide integrally formed with the centering frame and vertically suspended along a side surface of the main body base. A moving guide movably supported by the fixed guide, a lens holding frame supported by the moving guide, a condenser lens group mounted on the lens holding frame, and a movement for vertically moving the moving guide. A transmission illumination condenser for a microscope comprising a mechanism.