JP4036637B2 - Coarse / Fine adjustment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coarse / fine adjustment device used in, for example, a focusing device that performs focus adjustment of a microscope.
[0002]
[Prior art]
Conventionally, a focusing device for adjusting the focus of a microscope has been provided with a coarse / fine motion adjustment device to enable coarse and fine focus adjustment. In such a coarse / fine motion adjustment device, a stage operation is performed. In addition, it is necessary to secure a sufficient space around the fine movement operation means in order to perform stable fine movement adjustment.
[0003]
Therefore, conventionally, as disclosed in JP-A-2001-166195, the fine movement coupling shaft is provided coaxially with respect to the coarse movement coupling shaft, and the stage is moved up and down by the rotation of the coarse movement coupling shaft. The rotation of the fine movement connecting shaft is decelerated to move the stage with a movement amount smaller than the movement amount corresponding to the rotation of the coarse movement connecting shaft, and is attached to both ends of the coarse movement connecting shaft. It is considered that a fine movement ring formed with an outer diameter smaller than the outer diameter of the coarse movement handle is arranged outside the coarse movement handle, and a fine movement handle that can be attached to and detached from these fine movement rings is provided. .
[0004]
[Problems to be solved by the invention]
However, in such a configuration, each of the coarse motion coupling shaft and the fine motion coupling shaft is provided separately, and when the fine motion coupling shaft is rotated, the rotation is decelerated and the amount of movement due to the rotation of the coarse motion coupling shaft is smaller. Since the configuration is such that the amount of movement is obtained, the overall configuration tends to be complicated, and the fine movement handle that is detachably attached to the fine movement ring further increases the axial length of the fine movement connecting shaft. Therefore, when the fine movement handle is attached, it may interfere with other microscope parts or XY motorized parts of the manipulator located near the fine movement handle, which may interfere with the microscope operation. It was.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coarse / fine movement adjusting device that is simple in structure and inexpensive in price, and that is excellent in operability.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a coarse / fine movement adjusting apparatus for a microscope , comprising: a coarse movement handle; and an optical element support means for moving the optical element along an optical axis direction of the microscope by the rotation of the coarse movement handle. A cylindrical handle cover that is rotatably provided on the outer periphery of the moving handle , and is detachably provided on the coarse handle; and extends along a direction from the central axis of the coarse handle to the outer periphery, It has a fine motion adjusting lever provided detachably on the handle cover, and the like extending direction of the fine motion adjusting lever points towards the front of the microscope, to rotate the handle cover the outer periphery of said coarse handle The position can be adjusted and fixed at that position.
[0009]
According to a second aspect of the invention, provided in the invention of claim 1 Symbol placement, further the microscope or with freely provided detachably to the optical element support means, the operating range limiting means for limiting the operating range of said fine adjustment lever It is characterized by that.
[0010]
According to a third aspect of the present invention, in the first or second aspect of the present invention, an indicator is further provided that is detachably provided in the vicinity of the handle cover and that can read the amount of displacement of the coarse handle. It is a feature.
[0011]
As a result, according to the present invention, since the current operation by the handle is used as it is, the configuration is simple and the cost can be reduced. Also, by using a lever as the fine adjustment member, for example, fine adjustment can be performed from the front of the set-up microscope main body, so that the operator's hand can be prevented from interfering with other parts. Operability can be obtained.
[0012]
In addition, according to the present invention, the operation range of the fine adjustment member can be limited to facilitate the operation, and the user can finely adjust the operation range by setting the operation range within a range that does not interfere with other parts. Even when the adjustment member is erroneously operated, the influence on others can be prevented.
[0013]
Furthermore, according to the present invention, when operating the handle, the operator can read the amount of displacement of the handle by slightly tilting the neck or slightly shifting the line of sight without changing the posture.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
(First embodiment)
FIG. 1 shows a schematic configuration of a microscope provided with a coarse / fine adjustment device to which the present invention is applied.
[0016]
In the figure, reference numeral 1 denotes a microscope body. An eyepiece tube 2 is provided at the upper front of the microscope body 1, and an eyepiece lens 3 is attached to the tip of the eyepiece tube 2. Further, a stage 4 is disposed behind the eyepiece tube 2 of the microscope main body 1, and a manipulator 5 and an XY electric unit 6 of the manipulator 5 are provided on the upper surface of the stage 4.
[0017]
A column 1a is provided upright at the rear of the microscope body 1, and a lamp house 7 is provided at the tip of the column 1a. Further, a condenser holder 8 is provided on the front surface of the support 1a as an optical element supporting means so as to be movable in the vertical direction. A condenser 9 is supported on the condenser holder 8 as an optical element.
[0018]
On both sides of the capacitor holder 8, left and right coarse movement handles 10, 11 are arranged. These left and right rough movement handles 10 and 11 operate the rough movement of the capacitor holder 8 in the optical axis direction, and are located above the XY motorized portion 6 of the manipulator 5 on the stage 4.
[0019]
FIG. 2 shows a schematic configuration of the coarse / fine adjustment device. In this case, a male ant 12 is attached to the front surface of the support 1 a along the axial direction, and a rack 13 is screwed to the front surface of the male ant 12.
[0020]
On the other hand, a female ant 8 a is formed integrally with the capacitor holder 8. The female ant 8a is fitted with a male ant 12 on the column 1a side, and in this state, the capacitor holder 8 can be moved up and down along the optical axis, here along the column 1a.
[0021]
The capacitor holder 8 is provided with a pinion shaft 14 extending therethrough. A pinion 14 a is formed at the center of the pinion shaft 14. The pinion 14a meshes with the rack 13 on the support 1a side, and the entire capacitor holder 8 is movable relative to the support 1a by the rotation of the pinion shaft 14.
[0022]
The right coarse handle 10 and the left coarse handle 11 described above are fixed to both ends of the pinion shaft 14, respectively.
[0023]
A bottomed cylindrical handle cover 17 as an auxiliary handle member is fixed to the right coarse handle 10 by a plurality of retaining screws 18. In this case, the stop screws 18 are provided at two locations, for example, at intervals of 45 degrees along the circumferential direction of the outer peripheral surface of the handle cover 17.
[0024]
That is, in this way, when one or both of the right coarse handle 10 and the left coarse handle 11 are rotated, the female ant 8a formed integrally with the capacitor holder 8 by the rotation of the pinion shaft 14 is moved to the support 1a. It slides along the male ant 12 so that the capacitor holder 8 can be moved up and down along the column 1a.
[0025]
A screw hole 19 is provided on the outer peripheral surface of the handle cover 17. A tip of a fine adjustment lever 20 used for fine adjustment of the capacitor holder 8 is attached to the screw hole 19 by screwing.
[0026]
As shown in FIG. 3, the fine adjustment lever 20 can be rotated within a range from a horizontal position a parallel to the capacitor holder 8 to a position b inclined upward by about 45 degrees. In this case, the amount of movement of the capacitor holder 8 when the fine adjustment lever 20 is displaced from 0 to 45 degrees is specifically set to about 2.5 mm. This adjustment range is to secure the moving distance (± 1 mm) of the capacitor 9 necessary for focusing with the FS diaphragm 21 arranged on the lamp house 7 side at the tip of the column 1a as shown in FIG. is there.
[0027]
The capacitor holder 8 is provided with a capacitor receiver 22. The capacitor receiver 22 is U-shaped with an opening at the front. The capacitor 9 is inserted so as to slide through the opening, and is pushed to the abutment, and further provided at the tip of the capacitor receiver 22. By tightening the knob 23, the capacitor 9 is fixed in the state shown in FIG.
[0028]
In such a configuration, the coarse / fine adjustment of the capacitor holder 8 is performed as follows.
[0029]
First, the capacitor 9 is set on the capacitor receiver 22 of the capacitor holder 8 and fixed by tightening the knob 23. Then, the right coarse handle 10 or the left coarse handle 11 is turned while looking through the eyepiece 3, and the capacitor holder 8 is attached to the column. Move along 1a to keep the condenser 9 roughly in focus.
[0030]
Next, the two locking screws 18 provided on the handle cover 17 fixed to the right coarse handle 10 are loosened so that the screw holes 19 for attaching the fine adjustment lever 20 face the front of the microscope main body 1. The handle cover 17 is rotated to adjust the position, and then the set screw 18 is tightened to fix it to the right coarse handle 10.
[0031]
Then, after the tip of the fine adjustment lever 20 is screwed into the screw hole 19 of the handle cover 17 and attached to the right coarse movement handle 10, the manipulator 5 is set on the specimen (not shown) placed on the stage 4. Complete the setup of the microscope part and application device.
[0032]
In this state, while looking into the eyepiece 3, the fine adjustment lever 20 is operated from the front side of the microscope body 1 within a range from a position “a” in the horizontal direction to a position “b” inclined upward by about 45 degrees. Then, since the right coarse movement handle 10 is slightly rotated according to the rotation angle of the fine adjustment lever 20, the capacitor holder 8 is moved up and down along the support column 1a by the pinion shaft 14 and the rack 13, and the capacitor 9 is finely moved. Focus adjustment is performed.
[0033]
Accordingly, in this configuration, in the configuration in which the capacitor holder 8 can be moved along the column 1a by the pinion shaft 14 and the rack 13, the right coarse handle 10 or the left coarse handle 11 provided on the pinion shaft 14 is used. The condenser holder 8 is moved up and down along the column 1a to adjust the coarse movement of the condenser 9. Next, the fine adjustment lever 20 is attached to the handle cover 17 of the right coarse movement handle 10, and the fine adjustment lever 20 is moved at a predetermined angle. In this case, the condenser holder 8 is further moved along the column 1a to finely adjust the condenser 9. In this case, the fine adjustment of the condenser 9 is performed on the right coarse movement handle 10. A configuration in which the fine adjustment lever 20 is attached to the fixed handle cover 17, and the current right coarse adjustment handle 10 is used. Because it is used as it is created, can the configuration of as coarse and fine adjustment device very easily, even of price can be cheaper. Further, the fine movement adjustment by the fine movement adjustment lever 20 can be performed from the front of the set-up microscope main body 1, so that it is not necessary to put the hand into the depth of the microscope main body 1 after the setup, and other microscope parts can be placed. It is possible to obtain excellent operability such as avoiding the interference of the operator's hand. Further, by using the fine adjustment lever 20, it is possible to prevent the operator's hand from interfering with the XY motorized portion 6 of the manipulator 5 disposed below the capacitor holder 8, and further, the space around the capacitor holder 8 is wide. Since it can be secured, it is possible to install various capacitors.
[0034]
The handle cover 17 can be replaced not only with the right coarse motion handle 10 but also with the left coarse motion handle 11 by a set screw 18. In this way, the handle cover 17 can be attached not only to the right coarse handle 10 but also to the left coarse handle 11, so that the fine adjustment lever 20 is not limited to being attached to the right coarse handle 10. The left coarse movement handle 11 can be attached and can be arbitrarily changed according to the needs of the user.
[0035]
(Second Embodiment)
Next, a second embodiment of the present invention will be described.
[0036]
FIG. 4 is an enlarged view around the coarse movement handle of the coarse / fine movement adjusting device to which the second embodiment of the present invention is applied. The same parts as those in FIG. 3 are denoted by the same reference numerals.
[0037]
In this case, the capacitor holder 8 is provided with a pinion shaft 14 extending therethrough, and a right coarse handle 10 and a left coarse handle (not shown) are fixed to both ends of the pinion shaft 14, respectively. A handle cover 17 is fixed to the right coarse movement handle 10.
[0038]
A stopper member 31 as an operation range limiting means is provided along the outer peripheral surface of the right coarse movement handle 10 on the side surface of the capacitor holder 8 through which the pinion shaft 14 is penetrated. As shown in FIG. 5, the stopper member 31 is provided with a pair of protrusions 312 and 313 on the upper surface of the arcuate substrate 311 at a predetermined interval, and two holes are provided between the protrusions 312 and 313. Portions 314a and 314b are provided, and are fixed to the side surface of the capacitor holder 8 with screws 32 through the holes 314a and 314b.
[0039]
Further, the stopper member 31 has an end portion on the side of the fine adjustment lever 20 attached to the handle cover 17 attached to the handle cover 17 between the pair of projections 312 and 313, and the fine adjustment lever 20 is provided by the projections 312 and 313. The range of operation is regulated. In this case, the distance between the protrusions 312 and 313 is set such that the fine adjustment lever 20 can be operated in a range from a horizontal position a parallel to the capacitor holder 8 to a position b inclined upward by about 45 degrees. .
[0040]
With such a configuration, the operator can regulate the operation range of the fine adjustment lever 20 during fine adjustment of the capacitor holder 8 between the protrusions 312 and 313 of the stopper member 31, which makes it easy to operate. Since the operating range of the fine adjustment lever 20 can be set within a range that does not interfere with other microscope parts, the fine adjustment lever 20 can be used even when the user's hand accidentally moves the fine adjustment lever 20. By contacting the protrusions 312 and 313 of the stopper member 31, for example, it is possible to prevent a situation in which the XY motorized portion 6 of the manipulator 5 disposed below the right coarse movement handle 10 interferes.
[0041]
The handle cover 17 can be replaced not only on the right coarse handle 10 but also on the left coarse handle 11 side. In this case, the stopper member 31 is also provided along the outer peripheral surface of the left coarse movement handle 11 on the side surface through which the pinion shaft 14 of the capacitor holder 8 passes. Thus, the stopper member 31 can be easily attached not only to the right side surface of the capacitor holder 8 but also to the left side surface, and it is possible to cope with the case where the fine adjustment lever 20 is attached to the left coarse movement handle 11. is there. Further, the stopper member 31 may be attached and detached in accordance with the attachment of the fine adjustment lever 20.
[0042]
(Third embodiment)
Next, a third embodiment of the present invention will be described.
[0043]
In this case, as shown in FIGS. 4 and 5, the stopper member 31 is provided with an arrow 33 on the upper surface of the substrate 311 between the pair of protrusions 312 and 313.
[0044]
Further, as shown in FIG. 6, the handle cover 17 attached to the right coarse handle 10 is formed with a small diameter portion 17a along the circumferential direction of the outer peripheral surface, and a scale plate 34 as an index is fitted into the small diameter portion 17a. It is.
[0045]
The scale plate 34 has an annular shape with a part cut away, and line indications 35 are given at equal intervals along the circumferential direction of the outer peripheral surface. These line displays 35 display the rotation angle of the fine adjustment lever 20, and here, along with these line displays 35, for example, thick line displays 36 are attached at 36 positions at intervals of 10 degrees.
[0046]
In addition, the scale plate 34 is attached to the small diameter portion 17a of the handle cover 17 by sliding the outer periphery of the handle cover 17 and then fitting it into the small diameter portion 17a. Then, one of the thick line indications 36 positioned substantially at the center of the scale plate 34 is aligned with the index 33 provided between the pair of protrusions 312 and 313 of the stopper member 31.
[0047]
With such a configuration, when the fine adjustment lever 20 is rotated, the handle cover 17 is rotated, and the position of the line display 35 on the scale plate 34 with respect to the arrow 33 changes. The turning angle of the fine adjustment lever 20 can be easily known from the line display 35 on the corresponding scale plate 34.
[0048]
Accordingly, when the fine adjustment lever 20 is operated in this way, the operator can rotate the fine adjustment lever 20 from the scale plate 34 by slightly tilting the neck or slightly shifting the line of sight without changing the posture. The moving angle can be read, and fine adjustment of the capacitor holder 8 can be performed with high accuracy.
[0049]
The scale plate 34 can be replaced not only on the right coarse handle 10 but also on the left coarse handle 11 side. In this case as well, it is possible to obtain the same effect as that attached to the right coarse motion handle 10, and the operator can arbitrarily replace it as necessary.
[0050]
In addition, this invention is not limited to the said embodiment, In the implementation stage, it can change variously in the range which does not change the summary.
[0051]
Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and is described in the column of the effect of the invention. If the above effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.
[0052]
The embodiments of the present invention also include the following inventions.
[0053]
(1) In a coarse / fine adjustment device for an optical instrument which is moved up and down by biting a pinion into a rack and has coarse movement handles at both ends of the pinion,
A coarse / fine adjustment device, wherein a fine adjustment lever is detachably provided in a screw hole provided on an outer periphery of a handle cover attached to the coarse handle.
[0054]
(2) The coarse / fine adjustment device according to (1) is characterized in that a detachable stopper is provided around the handle cover, and the stopper can be attached / detached in accordance with the attachment of the fine adjustment lever.
[0055]
(3) In the coarse / fine adjustment device according to (1), the handle cover has a small diameter portion formed along a circumferential direction of the outer peripheral surface, and the displacement amount of the fine adjustment lever can be read in the small diameter portion. A detachable index is provided in accordance with the mounting of the fine adjustment lever.
[0056]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a coarse / fine motion adjusting device that has a simple configuration and can be inexpensively manufactured and that is excellent in operability.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a microscope including a coarse / fine movement adjusting device according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a schematic configuration of the coarse / fine movement adjusting apparatus according to the first embodiment;
FIG. 3 is a view for explaining a fine adjustment lever used in the first embodiment.
FIG. 4 is a diagram showing a schematic configuration of a main part of a coarse / fine motion adjusting apparatus according to second and third embodiments of the present invention.
FIG. 5 is a diagram showing a schematic configuration of a stopper member used in the second and third embodiments.
FIG. 6 is a diagram showing a schematic configuration of a main part of a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Microscope main body 1a ... Column 2 ... Eyepiece tube 3 ... Eyepiece lens 4 ... Stage 5 ... Manipulator 6 ... XY motorized part 7 ... Lamp house 8 ... Capacitor holder 8a ... Female ant 9 ... Condenser 10 ... Right coarse movement handle 11 ... Left Coarse handle 12 ... Male ant 13 ... Rack 14 ... Pinion shaft 14a ... Pinion 17 ... Handle cover 17a ... Small diameter portion 18 ... Set screw 19 ... Screw hole 20 ... Fine adjustment lever 21 ... FS throttle 22 ... Condenser receiver 23 ... Knob 31 ... Stopper member 311 ... Substrate 312, 313 ... Projection 314a, 314b ... Hole 32 ... Screw 33 ... Arrow 34 ... Scale plate 35 ... Line display 36 ... Thick line display

Claims (3)

In the coarse / fine adjustment apparatus for a microscope, comprising: a coarse movement handle; and an optical element support means for moving the optical element along the optical axis direction of the microscope by the rotation of the coarse movement handle.
A cylindrical handle cover provided rotatably on the outer periphery of the coarse handle, and detachably provided on the coarse handle ;
A fine adjustment lever that extends along the direction from the center axis of the coarse handle toward the outer periphery and is detachably provided on the handle cover ;
Have
The handle cover is rotated on the outer periphery of the coarse movement handle so that the extending direction of the fine movement adjustment lever faces the front surface of the microscope, and the position is adjusted and fixed at that position. coarse and fine movement regulating device for. Furthermore, the microscope or with freely provided detachably to the optical element support means, said fine operation range limiting means for limiting the operating range of the adjusting lever, characterized by comprising the claims 1 Symbol placing coarse and fine adjustment device. 3. The coarse / fine movement adjusting device according to claim 1, further comprising an index that is detachably provided in the vicinity of the handle cover and that can read a displacement amount of the coarse movement handle.

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