JP2001272607A - Microscope having coarse and fine adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microscope having a highly handlable and small-sized coarse and fine adjusting device. SOLUTION: Guide bars 60 and 61 are fixed on a fixed member 30, and a coarse adjusting moving member 40 and a fine moving member 50 are supported to move in an up-and-down direction on the guide bars 60 and 61. A shaft 81 integrally provided at the center part of a fine adjusting handle 80 is made to abut on an inclined surface part formed at the lower part of the member 50. A coarse adjusting handle 70 is fixed on the member 50 by a coarse adjusting handle fixing member 71. A pin 72 eccentric to the center shaft 73 of the member 71 is provided on the member 71, and the pin 72 is engaged in a groove 42 formed on the member 40. A photointerruptor 6 is attached to the edge of the member 40, whereby a light shielding plate 7 is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a microscope having an adjusting coarse / fine movement device.

[0002]

2. Description of the Related Art Hitherto, an adjustment coarse / fine movement device used for adjusting a sensor or an optical member has used a reduction mechanism using a combination of a guide, a screw, a gear, or the like.

FIG. 11 is a side view of a conventional adjustment coarse / fine movement device.

[0004] The adjustment coarse / fine movement device 520 is used for focusing on an object to be observed mounted on a stage of a microscope.

The adjusting coarse / fine movement device 520 includes two fixing members 530a, 530b arranged in parallel, and a guide rod 560, which connects these fixing members 530a, 530b.
561, a feed screw 592 rotatably provided between the fixing members 530a and 530b, and the fixing members 530a and 530.
b, and a moving member 540 screwed to the feed screw 592.

A handle 590 is attached to the feed screw 592, and when the handle 590 is rotated, the moving member 540 moves up and down.

The moving member 540 includes a photo interrupter 5
06 is provided. The photo-interrupter 506 adjusts the vertical position of the photo-interrupter 506 by, for example, a light-shielding plate 507 provided on an up-and-down moving unit (not shown) for raising and lowering a microscope stage.

[0008]

However, in the adjustment coarse / fine movement device 520, when the reduction ratio is large, the photointerrupter 506 cannot be largely moved, and the handle 590 must be rotated many times. It takes a lot of time.

Conversely, when the reduction ratio is small, the photointerrupter 506 can be moved largely, but cannot be moved finely, making fine adjustment difficult.

For this reason, this microscope is inconvenient.

Further, when mounted on the microscope main body, the handle 590 for adjustment is provided at the upper part, so that it has to be externally attached to the microscope main body, which results in an increase in size.

The present invention has been made in view of such circumstances, and an object thereof is to provide a microscope which is easy to use and has a small adjustment coarse / fine movement device.

[0013]

According to a first aspect of the present invention, there is provided a fixing member (30, 130, 230) fixed to a microscope body (10), and an object to be adjusted is mounted. A first moving member (small moving member 50) that can move up and down with respect to the fixed member, and a coarse moving mechanism (42, 70, 72, 170, 1) that moves the first moving member up and down.
72, 142, 242), a second moving member (coarse moving member 40) that holds the first moving member and is vertically movable with respect to the fixed member in the held state. Fine movement mechanism (51, 80, 81, 1) for moving the moving member up and down
80, 181).

The first moving member on which the object to be adjusted is mounted is largely moved by the coarse movement mechanism, and the first movement member is moved by the fine movement mechanism.
While the second moving member is held, the second moving member is finely moved to perform positioning.

According to a second aspect of the present invention, in the microscope having the coarse and fine adjustment device for adjustment according to the first aspect, the coarse movement mechanism includes a coarse movement operation section (coarse movement handle 70) and A projection (pin 72) provided integrally and eccentric to the center axis thereof; and a groove (42) provided on the first moving member and engaging with the projection. An operating portion (fine movement handle 80), a shaft (81) provided integrally with the center portion of the operating portion and screwed to the fixed member in a direction substantially perpendicular to the vertical direction, and formed on the second moving member. A guide member (guide rods 60, 61) for vertically guiding the first moving member and the second moving member, the guide member having a slope (51) with which the tip of the shaft comes in contact. It is characterized by being provided on a member.

When the coarse operation section is operated, the projections engaged with the grooves provided on the first moving member rotate, and the first moving member moves up and down along the guide member. Further, when the fine movement operation unit is operated, the tip of a shaft provided integrally with the fine movement operation unit pushes the inclined surface, and the second moving member moves up and down along the guide member.

According to a third aspect of the present invention, there is provided a microscope having the coarse and fine adjustment device for adjustment according to the first aspect, wherein the coarse movement mechanism includes a coarse movement operation section (coarse movement handle 170) and A projection (pin 172) that is provided integrally and is eccentric to the center axis thereof, and the second moving member (coarse moving member 14) rotatably supported by the fixed member via a shaft.
0), and has a groove (142) that engages with the projection. The fine movement mechanism is provided integrally with the fine operation unit and applies a rotational force to the coarse operation unit. And a shaft for rotating the first moving member (the minute angle moving member 150).

When the coarse movement operating section is operated, the second moving member rotates about an axis engaged with the groove provided in the first moving member, and the tip of the second moving member moves up and down. Move. Further, when the fine movement operation unit is operated, a rotational force is applied to the first moving member about the axis, and the tip of the first moving member is moved up and down.

According to a fourth aspect of the present invention, there is provided a microscope having the coarse and fine adjustment device for adjustment according to the first aspect, wherein the coarse movement mechanism includes a coarse movement operation unit (coarse movement handle 170) and a coarse movement operation unit. A projection (pin 172) integrally provided and eccentric from the center axis thereof; and a second moving member (coarse moving member 240) supported by the fixed member via a leaf spring, wherein the projection is provided. The fine movement mechanism is provided integrally with the fine movement operation section, and applies a rotational force to the coarse movement operation section to move the first movement member. A rotating shaft.

When the coarse movement operating section is operated, the tip of the second moving member moves up and down by a shaft engaged with the groove provided in the first moving member. Further, when the fine movement operation unit is operated, the shaft applies a rotating force to the first moving member about the shaft, and the tip of the first moving member is moved up and down.

The invention according to claim 5 is the invention according to claim 3 or 4.
In the microscope having the adjustment coarse / fine movement device described in 1 above, an inclination for converting the linear movement of the axis of the fine movement operation unit (fine movement handle 180) into the vertical movement of the second movement member (coarse movement member 140, 240). A surface is formed on the first moving member.

The fine operation unit can be arranged on the same side as the coarse operation unit.

According to a sixth aspect of the present invention, there is provided a microscope having the coarse and fine adjustment device for adjustment according to any one of the first to fifth aspects, wherein the microscope main body includes a base, a support, and an arm. It is characterized in that it accommodates an adjustment coarse / fine movement device.

Since the adjusting coarse and fine movement device is accommodated in the base, the appearance is clear.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway side view of a microscope having an adjusting coarse / fine movement device according to a first embodiment of the present invention, and FIG. 2 is a partially cutaway II of FIG. FIG. 2 is an enlarged sectional view taken along the line II.

This microscope comprises a microscope body 10 and a lens barrel 1
1, a revolver 12, a stage 13, a vertical movement handle 14, and an adjustment coarse / fine movement device 20.

The microscope main body 10 includes a base 10A, a support 10B, and an arm 10C. An adjustment coarse / fine movement device 20 is accommodated in the base 10A. Base 10
In A, holes 15a and 15b corresponding to a coarse movement handle (coarse operation part) 70 and a fine movement handle (fine movement operation part) 80 of the adjustment coarse / fine movement device 20 are formed.

The lens barrel 11 is mounted on the upper part of the arm 10C and has an eyepiece 11a.

The revolver 12 is composed of a fixed member 12a attached to the lower surface of the arm 10C, and a rotating portion 12b rotatably attached to the fixed member 12a. A plurality of objective lenses 5 are mounted on the rotating portion 12b. Have been.

The vertical movement handle 14 is provided on the base 10A. When the handle 14 is operated, the up / down moving section 16 driven by a motor circuit (not shown) moves the stage 13 in the up / down direction in conjunction with the operation of the handle 14.

The vertical moving member 16 includes the photo interrupter 6
The light-shielding plate 7 for adjusting the position is mounted with screws 7a. The motor circuit is stopped when the light shielding plate 7 crosses the photo interrupter 6 as an upper limit position.

FIG. 3 is a front view of the coarse / fine adjustment device for adjustment, FIG. 4 is a rear view thereof, FIG. 5 is a sectional view taken along the line V--V in FIG.
FIG. 6 is a sectional view taken along line VI-VI in FIG. 3.

The adjusting coarse / fine movement device 20 includes a fixing member 30.
A coarse movement member (second movement member) 40, a minute movement member (first movement member) 50, guide rods (guide members) 60 and 61, a coarse movement handle 70, and a fine movement handle 80; Is provided.

Guide rods 60 and 61 are fixed to the fixed member 30, and the coarse moving member 40 and the minute moving member 50 are supported by the guide bars 60 and 61 so as to be movable in the vertical direction.

The minute moving member 50 moves vertically along the guide rods 60 and 61 while being held by the coarse moving member 40. An inclined surface portion 51 is formed at the lower end of the minute moving member 50.

Further, the fine movement handle 80 is attached to the fixing member 30.
The shaft 81 provided with is screwed. The shaft 81 is provided integrally with the center portion of the fine movement handle 80, and the shaft 81 is
A male screw 82 to be screwed with the female screw 31 is formed. The tip of the shaft 81 is in contact with the slope 51 of the minute moving member 50.

The fine movement mechanism 80, the shaft 81 and the inclined surface 51 constitute a fine movement mechanism according to the present invention.

The guide rod 60 is provided with the minute moving member 50.
Is provided.

The screw 33 fixed to the fixing member 30
A tension spring 8 is passed between the screw and the screw 43 fixed to the coarse movement member 40, and the coarse movement member 40 is constantly urged downward by the tension spring 8.

The photo interrupter 6 is attached to the tip of the coarse movement member 40.

The photo interrupter 6 includes a light transmitting unit 6a and a light receiving unit 6b, and a light shielding plate 7 is disposed between the light transmitting unit 6a and the light receiving unit 6b. The photo interrupter 6 detects the light shielding plate 7 based on a change in current detected by the light receiving unit 6b.

A coarse moving handle 70 is fixed to the minute moving member 50 by a coarse moving handle fixing member 71.

The coarse handle fixing member 71 is provided with a pin (projection) 72 eccentric to the center axis 73 of the coarse moving handle fixing member 71. The pin 72 is engaged with a groove 42 formed in the coarse movement member 40. The groove 42 is formed in the front-back direction of the minute moving member 50.

The coarse movement handle 70, the pin 72 and the groove 42 constitute a coarse movement mechanism according to the present invention.

When the coarse moving handle 70 is rotated, the coarse moving member 40 is moved by the pin 72 to move the guide rod 60,
It moves largely up and down along 61. The amount of movement of the coarse movement member 40 when the coarse movement handle 70 is rotated is determined by the distance between the center of the center shaft 73 and the center of the pin 72.

When the fine movement handle 80 is rotated, the shaft 81 moves in the front-rear direction. Since the tip of the shaft 81 is in contact with the inclined surface 51 of the minute moving member 50, the shaft 8
The fine moving member 50 moves finely in the vertical direction along the guide rods 60 and 61 together with the coarse moving member 40 according to the movement of 1. The amount of movement of the coarse movement member 40 when the fine movement handle 80 is rotated is determined by the external thread 8 formed on the shaft 81.
It is determined by the pitch of 2.

According to this embodiment, the coarse movement handle 70
The coarse moving member 40 can be quickly moved by the fine moving handle 80, and the fine moving handle 40 can be finely moved by the fine moving handle 80. Therefore, the upper limit position of the vertical moving member 16 in accordance with the thickness of the sample placed on the stage 13. Can be adjusted quickly, and usability is improved.

Further, since the adjustment coarse / fine movement device 20 is accommodated in the base 10A of the microscope, the size of the microscope can be reduced.

FIG. 7 is a front view of an adjustment coarse / fine movement device according to a second embodiment of the present invention, FIG. 8 is a rear view thereof, and FIG.
FIG. 9 is a sectional view taken along line IX-IX of FIG.

The adjusting coarse and fine movement device 120 is
0, coarse movement member (second movement member) 140, minute angle movement member (first movement member) 150, rough movement handle (coarse movement operation unit) 170, and fine movement handle (fine movement operation unit) 180.

One end of a coarse movement member 140 is rotatably supported on the fixed member 130 via a rotation fixed shaft 160.

The other end of the coarse movement member 140 is provided with the photo interrupter 6. The photo interrupter 6 is attached at a position where light can be shielded by the light shielding plate 7.

A groove 142 extending in the longitudinal direction is formed at an intermediate portion of the coarse movement moving member 140.

A coarse movement handle 170 is attached to the fixed member 130 via a coarse movement handle fixing member 171, a minute angle moving member 175, and a minute angle moving member 150. The minute angle moving member 150 is a minute angle moving member 175.
And are integrally formed.

The minute angle moving member 175 and the minute angle moving member 150 are rotatable together with the coarse moving handle 170 about the center axis 173 of the coarse moving handle 170.

The coarse moving handle fixing member 171 is provided with a pin (projection) 172 eccentric to the center axis 173 of the coarse moving handle fixing member 171. The pin 172 is engaged with a groove 142 formed in the coarse movement member 140.

Coarse movement handle 170, pin 172 and groove 14
2 constitutes the coarse movement mechanism described in the claims.

A shaft 181 having a fine movement handle 180 is screwed to the fixing member 130. The shaft 181 is provided integrally with the center of the fine movement handle 180, and the shaft 181 is formed with a male screw 182 that is screwed with the female screw 131 of the fixing member 130.

The tip of the shaft 181 is a small angle moving member 150
Is pressed by the elastic force of the tension spring 108 against the contact surface 151 formed at the end of the contact hole 151.

The fine movement mechanism described in the claims is constituted by the fine movement handle 180 and the shaft 181.

The fixing member 130 is provided with limiting pins 155 and 156 for limiting the rotation of the minute angle moving member 150.

When the coarse movement handle 170 is rotated, the coarse movement member 140 is largely moved up and down by the pin 172 because the pin 172 is engaged with the groove 142. At this time, the photo interrupter 5 moves up and down in an arc (see FIG. 7 or FIG. 8). Coarse handle 1
The amount of movement of the coarse movement member 140 when rotating 70 is determined by the distance between the center of the center shaft 173 and the center of the pin 172.

When the fine movement handle 180 is rotated, the shaft 181 moves up and down. Since the tip of the shaft 181 is in contact with the contact surface 151 of the minute angle moving member 150, the minute angle moving member 150 rotates about the central axis 173 as the shaft 181 moves, and the pin 172 moves.
The coarse moving member 140 is finely moved in the vertical direction via. At this time, the rotation fixed shaft 160 of the coarse movement moving member 140
, The photo-interrupter 5 moves almost linearly. The amount of movement of the coarse movement member 140 when the fine movement handle 180 is rotated is determined by the pitch of the external thread formed on the shaft 181.

According to this embodiment, the coarse movement handle 17
0 allows the coarse movement member 140 to be quickly moved, and the fine movement handle 180 allows the coarse movement member 140 to be finely moved.
The position of the (photo interrupter 5) can be adjusted, and usability is improved.

When the contact surface 151 is an inclined surface, the fine movement handle 180 can be arranged on the same side as the coarse movement handle 170, so that the microscope base 10A
The adjustment coarse and fine movement device 120 can be accommodated in the apparatus, and the size of the microscope can be reduced.

FIG. 10 is a rear view of a coarse and fine adjustment device for adjustment according to a third embodiment of the present invention. The same parts as those in the second embodiment are denoted by the same reference numerals and description thereof is omitted.

The adjusting coarse / fine movement device 220 is composed of two leaf springs 2 of the same size, in which the coarse movement moving member 240 is arranged in parallel.
The second embodiment differs from the second embodiment in that it is fixed to the fixing member 230 using 45, 246.

The photo interrupter 6 is attached to one end of the coarse moving member 240, and the leaf springs 245, 2 are attached to the other end.
One end of 46 is attached with a screw 247. The other ends of the leaf springs 245 and 246 are fixed to 230 by screws 248.

A groove 242 extending in the longitudinal direction is formed at an intermediate portion of the coarse movement moving member 240.

When the coarse movement handle 170 is rotated, the coarse movement member 240 is largely moved up and down by the pin 172 because the pin 172 is engaged with the groove 242. At this time, since the parallel leaf springs 245 and 246 are used, when the coarse movement handle 170 is rotated, the coarse movement member 240 moves in parallel, and the photo interrupter 6 moves linearly in the vertical direction (FIG. 10). reference). Coarse handle 1
The amount of movement of the coarse movement member 240 when rotating 70 is determined by the distance between the center of the center shaft 173 and the center of the pin 172.

When the fine movement handle 180 is rotated, the shaft 181 moves up and down. Since the tip of the shaft 181 is in contact with the contact surface 151 of the minute angle moving member 150, the minute angle moving member 150 rotates about the central axis 173 as the shaft 181 moves, and the pin 172 moves.
The coarse moving member 140 is finely moved in the vertical direction via. At this time, the photo interrupter 6 moves linearly vertically (see FIG. 10). The amount of movement of the coarse movement member 240 when the fine movement handle 180 is rotated
The pitch is determined by the pitch of the external thread 182 formed at the end.

According to this embodiment, the coarse movement handle 17
0 allows the coarse movement member 240 to be quickly moved, and the fine movement handle 180 allows the coarse movement member 240 to be finely moved.
The position of the (photo interrupter 6) can be adjusted, and usability is improved.

Further, since the photointerrupter 6 can be moved up and down linearly, the mounting position of the photointerrupter 6 is not restricted as compared with the second embodiment.

When the contact surface 151 is an inclined surface, the fine movement handle 180 can be arranged on the same side as the coarse movement handle 170, so that the microscope base 10A
The adjustment coarse / fine movement device 220 can be accommodated in the apparatus, and the size of the microscope can be reduced.

In each of the above embodiments, the light shielding plate 7 is detected by the photo interrupter 6 which is an optical sensor.
Of course, it may be performed by optical components such as a lens and a mirror.

[0077]

As described above, according to the microscope having the coarse and fine adjustment device for adjustment according to the first aspect of the present invention, the second
The quick positioning of the moving member can be performed, and the usability is improved.

According to the microscope having the coarse and fine adjusting device for adjustment according to the second aspect of the present invention, the operation unit for moving the first moving member and the second moving member can be arranged on the side surface. The coarse and fine movement device is housed in the microscope and the second
And positioning of the moving member
The size of the microscope can be reduced.

According to the microscope having the coarse and fine adjustment device for adjustment according to the third aspect of the present invention, the vertical dimension can be reduced by the amount of the guide member.

According to the microscope having the coarse and fine adjusting device for adjustment according to the fourth aspect of the present invention, the vertical dimension can be reduced and the second moving member can be moved in parallel with the fixed member. .

According to the microscope having the coarse and fine adjusting device for adjustment according to the fifth aspect of the present invention, the operation unit for moving the first moving member and the second moving member can be arranged on the side surface. The coarse and fine movement device is housed in the microscope and the second
And positioning of the moving member
The size of the microscope can be reduced.

According to the microscope having the coarse and fine adjustment device for adjustment according to the present invention, the appearance can be made clear.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of a microscope having an adjustment coarse / fine movement device according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line II-II of FIG. 1 with a part cut away.

FIG. 3 is a front view of the adjustment coarse / fine movement device.

FIG. 4 is a rear view of the adjustment coarse / fine movement device.

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a sectional view taken along the line VI-VI of FIG. 3;

FIG. 7 is a front view of an adjustment coarse / fine movement device according to a second embodiment of the present invention.

FIG. 8 is a rear view of the adjustment coarse / fine movement device according to the second embodiment.

FIG. 9 is a sectional view taken along the line IX-IX of FIG. 7;

FIG. 10 is a rear view of an adjustment coarse / fine movement device according to a third embodiment of the present invention.

FIG. 11 is a side view of a conventional adjustment coarse / fine movement device.

[Explanation of symbols]

Reference Signs List 10 Microscope main body 10A Base 10B Column 10C Arm 20, 120, 220 Coarse fine movement device 30, 130, 230 Fixed member 40, 140, 240 Coarse movement member (second movement member) 50 Small movement member (first member) Moving member) 51 Inclined surface 52, 142, 242 Groove 60, 61 Guide rod (guide member) 70, 170 Coarse handle (coarse operation part) 72, 172 Pin (projection) 73, 173 Central axis 80, 180 Fine handle (Fine movement operation unit) 81,181 axis 150 Micro angle moving member (first moving member) 160 Rotation fixed shaft 245,246 Leaf spring

Claims (6)

[Claims] 1. A fixing member fixed to a microscope main body, a first moving member mounted with an object to be adjusted and capable of moving up and down with respect to the fixing member, and a coarse moving member for moving the first moving member up and down. A moving mechanism, a second moving member that holds the first moving member and that can move up and down with respect to the fixed member in the held state, and a fine moving mechanism that moves the second moving member up and down A microscope having an adjusting coarse / fine movement device. 2. The coarse movement mechanism according to claim 1, wherein the coarse movement mechanism is provided on the first movement member, the projection is provided integrally with the operation part, and is eccentric to a center axis thereof. A fine movement mechanism, a shaft provided integrally with a center portion of the operation section, and screwed to the fixing member in a direction substantially perpendicular to a vertical direction; And a guide member for guiding the first moving member and the second moving member in a vertical direction, the guide member being provided on the fixed member. A microscope having the coarse and fine adjustment device for adjustment according to claim 1. 3. The coarse movement mechanism is rotatably supported by a coarse movement operation unit, a projection eccentrically provided to the center axis of the coarse operation unit, and the fixed member via a shaft. The fine movement mechanism is provided on the second moving member and is engaged with the projection. The fine movement mechanism is provided integrally with the operation part, and applies a rotational force to the coarse movement operation part. The microscope according to claim 1, further comprising a shaft that is provided to rotate the first moving member. 4. The coarse movement mechanism is provided with a coarse movement operation part, a projection eccentric to a center axis of the coarse movement operation part, and the first part supported by the fixing member via a leaf spring. 2
The fine movement mechanism is provided on the moving member, and is engaged with the projection. The fine movement mechanism is provided integrally with the operation section, and applies a rotational force to the coarse movement operation section to provide the fine movement operation section. The microscope according to claim 1, further comprising a shaft for rotating the first moving member. 5. The first moving member, wherein an inclined surface for converting a linear motion of a shaft of the fine movement operating portion into a vertical motion of the second moving member is formed on the first moving member. A microscope having the coarse and fine adjustment device for adjustment according to 4. 6. The microscope body according to claim 1, wherein the microscope main body includes a base, a support, and an arm, and the adjustment coarse / fine movement device is accommodated in the base. A microscope having a coarse / fine adjustment device for adjustment.