JP4115698B2 - Positioning and fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a positioning and fixing device for adjusting and fixing the position of an optical device including a diaphragm and an optical member.
[0002]
[Prior art]
A positioning device for adjusting the position of the optical device is widely used in the optical device, for example, a diaphragm opening / closing device. This aperture opening / closing device is also incorporated in a light projector of a microscope, and serves as a field stop / open aperture in microscope observation. In order to obtain a good observation image, it is necessary to perform a centering adjustment operation for aligning the center of the field stop / open stop with the illumination optical axis. For this reason, a general iris opening / closing device incorporates a centering mechanism which is a positioning mechanism.
[0003]
As a diaphragm opening / closing device with a centering adjustment mechanism, a technique described in Japanese Patent Application Laid-Open No. 8-597246 is known.
[0004]
FIG. 8 is a diagram showing a schematic configuration of a conventional aperture opening / closing device with a centering adjustment mechanism.
[0005]
This diaphragm opening / closing device with a centering adjustment mechanism includes a diaphragm blade section 101 that opens and closes the diaphragm blade, a support section 102 that supports the diaphragm blade section 101, and a holding section 103 that holds the support section movably. It is configured. The holding portion 103 is provided with a plunger 104, and the tip of the plunger 104 is in contact with the outer surface of the support portion 102. Then, two centering operation knobs 105 and 106 are screwed into the holding portion 103, and their tip portions abut against the outer surface of the supporting portion 102, and the supporting portion 102 is held at three points including the plunger 104. . When the centering operation knobs 105 and 106 are operated to change the pressure applied to the support portion 102, the plunger 104 expands and contracts, and the position of the support portion 102 can be adjusted.
[0006]
[Problems to be solved by the invention]
However, when a device incorporating such a mechanism is transported or when such a mechanism is incorporated into a movable type device, the diaphragm blade portion 101 and the support portion 102 are loosely resonated by vibrations generated by movement or the like. May end up. This is because play remains in the spring of the plunger 104 and the support portion 102 that supports the aperture blade portion 101 is not fixed even after being supported and fixed at three points.
[0007]
In particular, in the case of a device that automatically opens and closes the diaphragm, driving parts such as a motor are added to the diaphragm blade portion 101, so that its own weight increases and it is easily affected by vibration. Therefore, when this mechanism is applied to a device that is subject to large vibrations, in the worst case, it is conceivable that the components of the diaphragm blade portion 101 are damaged by the impact of the vibrations.
[0008]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a positioning and fixing device that can reliably adjust and fix the position of an optical device including a diaphragm and an optical member.
[0009]
[Means for Solving the Problems]
  The present invention for solving the above problems is as follows.A held portion for holding the optical element; a holding portion for supporting the held portion in a plane perpendicular to the optical axis of the optical element; and a movable portion provided to be movable relative to the holding portion. Two positioning members that contact and support the holding portion to position the held portion, an elastic member that is provided at a position facing the positioning member, and an elastic force of the elastic member Fixing for fixing the held portion by applying a pressure to the pressure member facing the positioning member and a pressure member configured to contact and support the held portion And a fixing member that is movably provided with respect to the holding portion, a pressure member that transmits a pressing force to the pressure-resistant member, and a lever member that has one end abutting against the pressure member. A support member for rotatably holding the lever member; The lever member extends in parallel with the positioning member, is slidable in the extending direction with respect to the holding portion, contacts the other end of the lever member, and is centered on the support member by the sliding. And a sliding member that moves the pressure member by rotating the pressure member.
[0010]
  Moreover, the present invention provides the positioning and fixing device according to the invention described above,The positioning member and the sliding member respectively include a positioning knob for positioning operation and a fixing knob for fixing operation, and the positioning knob and the fixing knob are in contact with the holding portion. Are provided in parallel.
[0011]
  Moreover, the present invention provides the positioning and fixing device according to the invention described above,The moving direction of the positioning member and the moving direction of the sliding member are the same direction, and the positioning operation by the positioning member and the fixing operation by the fixing portion are possible from the same direction.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
1 and 2 are schematic configuration diagrams of a positioning and fixing device for an optical device according to a first embodiment of the present invention. FIG. 1 is a structural diagram showing a cross section viewed from a direction parallel to the optical axis of the device. 2 is a structural diagram showing a cross section of the device viewed from the direction of the arrow along the line AA.
[0014]
Here, the optical device 10 is a device including an optical member such as a diaphragm or optical glass, and position adjustment of the optical axis or the like is required to obtain good illumination performance. A detailed configuration diagram of the optical device 10 is omitted.
[0015]
In this optical device 10, a positioning and fixing device, which will be described later, is fixed by a bolt 21 via a support portion (held portion) 20, and a male ant portion 23 is provided on the side surface opposite to the optical device mounting surface 22. The male ant 23 is provided with a through-hole 24 having the optical axis L1 as a central axis for passing the illumination light and guiding the illumination light to the optical device 10.
[0016]
Here, the “male ant portion” refers to a portion of a projection processed so as to fit in a so-called ant groove. This protrusion has a tapered shape whose outer shape spreads outward, in this case, a conical shape (round ant) as shown in FIG. Therefore, the cross-sectional shape of the male ant on the plane perpendicular to the optical axis L1 is not limited to a circle.
[0017]
In addition, the holding portion 30 of the positioning and fixing device is also provided with a circular concave portion 32 that has a through-hole portion 31 into which the male ant portion 23 can be inserted, and the male ant portion 23 of the support portion 20 is recessed in the concave portion 32. The illumination light passes through the hole 31 and the hole 24 and is incident on the optical device 10.
[0018]
On the other hand, the holding portion 30 has two parallel screw hole portions 33 pierced from the side surface 38 of the holding portion 30 to the concave portion 32 in a direction perpendicular to the illumination optical axis L1 passing through the center of the concave portion 32. 34. The positioning knob 40 has a handle portion 41 for operation and a screw portion 42 for screwing into the screw hole portions 33 and 34 of the holding portion 30, and the tip end portion 43 has a spherical shape.
[0019]
The distal end portions 43 of the two positioning knobs 40 screwed into the two screw hole portions 33 and 34 are brought into contact with the outer peripheral portion of the male ant portion 23 of the support portion 20 inserted into the concave portion 32 of the holding portion 30, The pressing forces F1 and F2 are applied in the direction of the axis L1, and the pressing force F4 is applied to the bottom surface side of the recess 32 of the holding unit 30.
[0020]
On the other hand, a sliding hole 35 penetrating toward the center of the recess 32 is provided on the surface of the holding portion 30 on which the two positioning knobs 40 are provided and on a surface symmetrical about the male ant portion 23. . The sliding hole 35 is inserted with a pressure member 50 that abuts on the outer peripheral portion of the male ant portion 23 of the support portion 20 and applies a force F3 that opposes the pressing forces F1 and F2 of the two positioning knobs 40. ing. The pressure member 50 includes a contact member such as a ball 51 that contacts the outer periphery of the male ant 23 and an elastic member such as a coil spring 52 that generates an elastic force by expansion and contraction. The ball 51 that contacts the end surface of the coil spring 52 is a coil spring. The outer peripheral wall portion of the male ant portion 23 of the support portion 20 is pressurized by the elastic force of 52.
[0021]
In this embodiment, the coil spring 52 is used. However, the present invention is not limited to this example, and any one that generates elastic force by expansion and contraction such as a leaf spring and rubber can be used. .
[0022]
A cylindrical pressure member 60 is in contact with one end of the coil spring 52 of the pressure member 50, and is slidable in the slide hole 35. On the axis of the sliding hole 35 of the holding part 30, a screw hole part 36 is provided, and a fixing knob 90 is screwed. The fixing knob 90 has a handle portion 91 for screwing operation and a screw portion 92 for screwing into the screw hole portion 36 of the holding portion 30, and the tip end portion 93 comes into contact with the other end of the pressure member 60. ing.
[0023]
Here, when the fixing knob 90 is screwed into the holding portion 30 and advanced and retracted, the applied pressure is transmitted to the pressure member 60, and the coil spring 52 of the resistance member 50 expands and contracts, and the outer peripheral wall of the male ant portion 23 of the support portion 20. Pressurize the part. The coil spring 52 expands and contracts by the pressure applied by the two positioning knobs 40 and the pressure applied by the fixing knob 90, and the elastic force changes. As described above, the supporting portion 20 is supported at three points by the pressing force of the two positioning knobs 40 and the pressing force of the pressure-resistant member 50 by the fixing knob 90. While maintaining this state, by adjusting the screwing amount of the positioning knob 40, the support portion 20 can be moved in the direction perpendicular to the optical axis L1 with respect to the holding portion 30, and the position of the support portion 20 can be adjusted. it can.
[0024]
Further, the elastic force of the coil spring 52 can be increased by screwing the fixing knob 90 and increasing the applied pressure. Further, since the screw portion 92 of the fixing knob 90 is configured to have a screw length longer than that of the coil spring 52, the screw spring 52 is compressed by screwing the fixing knob 90 and compressing the coil spring 52. It is possible to eliminate play. For this reason, the support part 20 is hold | maintained and positioning adjustment and fixation can be performed.
[0025]
As described above, according to the first embodiment, the support unit 20 attached to the optical device 10 is held so as to be movable with respect to the holding unit 30 in a direction perpendicular to the optical axis, and positioning adjustment of the support unit 20 is performed. The operation and the fixing operation can be performed by the two positioning knobs 40 and the fixing knob 90. The vibration generated during transportation or the like is configured so that the coil spring 52 of the pressure-resistant member 50 is compressed and brought into close contact with the screwing operation of the fixing knob 90 so that the coil spring 52 is not loosened. This can be prevented and the support portion 20 can be securely fixed and protected.
[0026]
3 and 4 are schematic configuration diagrams of a positioning and fixing device for an optical device according to a second embodiment of the present invention, and FIG. 3 is a structural diagram showing a cross section viewed from a direction parallel to the optical axis of the device. 4 is a structural diagram showing a cross section of the device viewed from the direction of the arrow along the line BB.
[0027]
Compared with the first embodiment, the second embodiment is provided with the fixing knob 900 so as to be positioned on the side surface on the same side as the positioning knob 40. The new point is different. In the following description, parts having the same functions as those in FIGS. 1 and 2 are denoted by the same reference numerals.
[0028]
In the present embodiment, the shape of the holding portion 300 is different from that of the first embodiment, but a structure in which the outer peripheral wall portion of the male ant portion 23 is pressurized by the positioning knob 40 provided in the holding portion 300. Since this is the same as that of the first embodiment, a detailed description thereof will be omitted, and a configuration linked to a fixing knob 900 provided to apply a force against the positioning knob 40 will be described.
[0029]
A sliding hole 305 penetrating toward the center of the recess 32 is provided on the surface of the holding unit 300 where the two positioning knobs 40 are provided and on a surface symmetrical about the male ant 23. The sliding hole 305 is inserted with a pressure member 50 that abuts on the outer peripheral portion of the male ant 23 of the support portion 20 and applies a force F3 that opposes the pressing forces F1 and F2 of the two positioning knobs 40. ing. The pressure member 50 includes a ball 51 in contact with the outer peripheral wall portion of the male ant portion 23 and a coil spring 52 that generates elastic force by expansion and contraction. The ball 51 in contact with the end surface of the coil spring 52 is supported by the elastic force of the coil spring 52. The outer peripheral wall portion of the male ant portion 23 is pressurized.
[0030]
A cylindrical pressure member 600 is in contact with one end of the coil spring 52 of the pressure member 50 and is slidable in the slide hole 305. The other end 601 of the pressure member 600 in contact with the pressure member 50 is spherical and is in contact with one end of the lever 70. The lever 70 is rotatably held by the holding portion 300 by a pin 71. A sliding rod 80 is in contact with the other end of the lever 70. The sliding rod 80 has a cylindrical shape, and a tip portion 81 in contact with the lever 70 has a spherical shape. The sliding rod 80 slides in the same direction as the pressing direction of the two positioning knobs 40 by the sliding hole 36 provided in the holding unit 300.
[0031]
The distal end 903 of the fixing knob 900 is in contact with the other end of the sliding rod 80. The fixing knob 900 has a handle portion 901 for fixing operation and a screw portion 902 for screwing into the screw hole 37 of the holding portion 300, and a tip portion 903 is formed in a spherical shape. The screw hole 37 of the fixing knob 900 provided in the holding unit 300 matches the screwing direction of the two positioning knobs 40, and the fixing knob 900 and the two positioning knobs 40 are connected to the holding unit 300. Positioning adjustment operation and fixing operation can be performed from the side surface 38 side. A retaining ring 83 is attached to the sliding rod 80, and the sliding range of the sliding rod 80 is limited by the retaining ring 80 and the holding portion 300 being in contact with each other.
[0032]
By the screwing operation of the two positioning knobs 40, the outer peripheral wall portion of the male ant portion 23 of the support portion 20 in contact with the distal end portion 43 is applied with pressures F1 and F2 in the direction of the optical axis L1 and the concave portion 32 of the holding portion 300. A pressing force F4 to the bottom side works. The applied pressure is transmitted to the ball 51 of the pressure member 50 and acts on the coil spring 52. The coil spring 52 is caused to expand and contract by this pressure, and the pressure member 600 that contacts the other end of the coil spring 52 presses the lever 70 side. As a result, a rotational force M1 is generated in the lever 70.
[0033]
The sliding rod 80 that is in contact with the other end of the lever 70 presses the distal end portion 903 of the fixing knob 900 that is in contact with the other end by the rotational force M1 of the lever 70. The fixing knob 900 is positioned by being screwed into the holding portion 300, and generates a force that opposes the applied pressure. By the advancement and retraction of the fixing knob 900, the applied pressure applied to the sliding rod 80 in contact with the tip 903 is increased or decreased. This applied pressure is transmitted to the pressurizing member 600 via the lever 70 and acts on the coil spring 52. To do. The coil spring 52 expands and contracts by the pressure applied by the two positioning knobs 40 and the pressure applied by the fixing knob 900, and the elastic force changes.
[0034]
As described above, the supporting portion 20 is supported at three points by the pressing force of the two positioning knobs 40 and the pressing force of the pressure member 50 by the fixing knob 900. While maintaining this state, by adjusting the screwing amount of the positioning knob 40, the support portion 20 can be moved in the direction perpendicular to the optical axis L1 with respect to the holding portion 300, and the position of the support portion 20 can be adjusted. it can. Further, the elastic force of the coil spring 52 can be increased by screwing the fixing knob 900 and increasing the applied pressure. Further, since the screw portion 902 of the fixing knob 900 is configured to have a screw length longer than that of the coil spring 52, if the fixing knob 900 is screwed in, the coil spring 52 is compressed and brought into close contact with the coil spring 52, It is possible to eliminate play.
[0035]
Next, when the screwing of the fixing knob 900 is loosened and moved backward, the sliding rod 80 moves backward together with the fixing knob 900, but the backward movement range is limited by the retaining ring 83 coming into contact with the holding portion 300, and the support is supported. The minimum force amount of the pressure member 50 that pressurizes the portion 20 is determined. The retaining ring 83 is attached to the side surface 39 of the concave portion 32 of the holding portion 300 and the pressure member 50 even when no pressure is applied to the supporting portion 20 due to the retraction of the two positioning knobs. The force position is set to generate a pressurizing force that can be held. Further, the distance D2 from the contact 73 of the sliding rod 80 and the lever 70 to the rotation axis R0 is shorter than the distance D1 from the contact 72 of the pressure member 600 and the lever 70 to the rotation axis R0. The advance / retreat amount of the sliding rod 80, that is, the advance / retreat amount of the fixing knob 900 is amplified by the action of the lever 70 and transmitted to the pressure member 600.
[0036]
As described above, according to the second embodiment, the support unit 20 attached to the optical device 10 is held movably with respect to the holding unit 300, and the positioning adjustment operation and the fixing operation of the support unit 20 are held. It can be operated by the two positioning knobs 40 and the fixing knob 900 provided on the side surface 38 of the section 300. Then, by the operation of the fixing knob 900, the coil spring 52 of the pressure-resistant member 50 is compressed and brought into close contact, and the support portion 20 is fixed in a state in which the coil spring 52 is prevented from moving. Accordingly, resonance due to the loose movement of the coil spring can be prevented, so that the influence of vibration generated during transportation or the like can be minimized, and the optical device 10 assembled to the support portion 20 can be protected from vibration.
[0037]
In the present embodiment, since the positioning operation and the fixing operation of a device such as a diaphragm incorporated in the optical device 10 can be performed from the same direction, the respective operation parts are arranged together like a light projection device for assembling the device. This is very useful because it can be applied when it is necessary to do so, and it is possible to alleviate restrictions on installation space. Furthermore, since the positioning operation and the fixing operation can be performed from the same direction, the operability can be improved.
[0038]
Here, “can be operated from the same direction” means that the operation can be performed without greatly changing the posture or the position of the hand during the operation.
[0039]
Further, since the fixing operation during transportation is amplified and transmitted to the pressing member 600 via the rotatable lever 70, the advancement / retraction amount of the fixing knob 900 is transmitted to the support portion 20 by a minute operation of the fixing knob 900. Can be fixed quickly.
[0040]
5 and 6 are schematic configuration diagrams of a positioning and fixing device for an optical device according to a third embodiment of the present invention. FIG. 5 is a structural diagram showing a cross section viewed from a direction parallel to the optical axis of the device. These are the structure views shown in the cross section of the apparatus seen from the arrow direction of CC line | wire. Parts having the same functions as those in FIGS.
[0041]
In the present embodiment, the configuration is the same as that of the second embodiment except for the holding portion 310, the lever 710, the sliding member 810, the fixing knob 910, and the respective constituent members.
[0042]
As in the second embodiment, the holding portion 310 includes a recess 32 into which the male ant portion 23 of the support portion 20 is inserted, a hole (not shown) through which the illumination light beam passes, and two positioning knobs 40. Screw holes 33 and 34 to be screwed in and a sliding hole 315 into which the pressure member 50 and the pressure member 610 are inserted are provided.
[0043]
One end of the lever 710 is rotatably held by a pin 711. The pressure member 610 is in contact with the rotating tip of the lever 710, and a sliding member 810 having a cylindrical member 811 is in contact between the contact point 712 and the rotation axis R1 of the lever 710, and sliding The member 810 can press the lever 710 in the same direction as the pressing direction applied to the pressing member 610. The sliding member 810 slides in the sliding hole 316 provided in the holding portion 310, and the protruding member 812 attached to the sliding member 810 is fitted in the long groove 317 opened in the longitudinal direction of the sliding hole 316. This regulates rotation. The movement range of the sliding member 810 is limited by the movement range of the protruding member 812 fitted in the long groove 317. As long as only the means for restricting the movement range of the sliding member 810 is used, it may be limited by a method using a retaining ring 83 as shown in the second embodiment.
[0044]
At the other end of the sliding member 810, a hole 813 into which a stepped screw 814 is inserted is provided. The stepped screw 814 is screwed into the screw hole 911 formed at the tip of the fixing knob 910 through the hole 813 of the sliding member 810, and the fixing knob 910 remains in a rotatable state while being held in the sliding member 810. It is connected. Similarly to the second embodiment, the screw hole 318 of the fixing knob 910 provided in the holding portion 310 is coincident with the screwing direction of the two positioning knobs 40. The two positioning knobs 40 can be operated from the same side of the holding portion 310.
[0045]
The fixing knob 910 moves backward while being rotated by screwing, and pulls the sliding member 810 with a force F5. The sliding member 810 slides in the sliding hole 316 while being prevented from rotating by the long groove 317 provided in the sliding hole 316 and the protruding member 812, and a cylinder provided at the tip of the sliding member 810. The lever 810 is pulled by the member 811 to generate the rotational force M2. By this rotational force M2, the pressure member 610 pressurizes the coercive member 50 as in the second embodiment.
[0046]
As described above, according to the third embodiment, as in the second embodiment, the support unit 20 to which the optical device 10 is attached is held movably with respect to the holding unit 310, and the support unit The positioning adjustment operation 20 and the fixing operation 20 can be performed from the same side of the holding portion 310 by the two positioning knobs 40 and the fixing knob 910. Similarly, the fixing knob 910 is configured to have a longer screw length than the coil spring 52 with respect to vibrations generated during transportation and the like, so that the coil spring 52 of the pressure member 50 is operated by the operation of the fixing knob 910. Is compressed and brought into close contact with each other, and the looseness of the coil spring 52 is eliminated, so that the support portion 20 can be securely fixed and protected. Moreover, since the determination operation and the fixing operation can be performed from the same direction as in the second embodiment, the operability can be improved.
[0047]
In the present embodiment, the applied pressure is transmitted to the pressurizing member 610 via the lever 710 that is rotatably supported. However, the present invention is not limited to this embodiment, and for example, as shown in FIG. Thus, the action member 750 may be provided at the end of the sliding member 810, and the pressure member 610 may be in contact with one end of the action member 750. As described above, the present invention can be realized without using the lever 710 to be freely rotatable.
[0048]
As described above, the present invention can be widely applied to an aperture device for an optical device, a lens centering device, an optical axis centering device, and the like as a positioning and fixing device for an optical device.
[0049]
The present invention can be expressed as follows.
[0050]
The present invention includes a held portion having a male ant portion, a holding portion having a concave portion that can be inserted in the male ant portion of the held portion and movable in a direction orthogonal to the optical axis direction, and moves toward the concave portion of the holding portion. At least two positioning members for positioning the held portion by being brought into contact with the male ant portion that is arranged and inserted in the concave portion, and the concave portion so as to face the position of the positioning member arranged in the holding portion A contact member that is movably disposed toward the male contact portion that is inserted into the recess, an elastic member that can apply pressure to the contact member that contacts the male ant portion, and a holding portion. A pressure member that performs pressure holding in a state in which the elastic member has elasticity and pressure fixing in a state in which the elasticity of the elastic member is lost, and a holding member that is in contact with the male ant portion. The other end facing the male ant portion of the pressure member Positioning and fixing device comprising: a lever member that abuts; and a fixing operation member that is disposed at a position opposite to the position of the pressure member disposed on the holding portion and performs a fixing operation of the pressure member via the lever member. The holding portion rotatably supports the lever member at an intermediate position in the longitudinal direction of the lever member so that one end of the lever member is brought into contact with the other end facing the male ant portion of the pressure member. It is a positioning and fixing device.
[0051]
In addition, the present invention is directed to a held portion having a male ant portion, a holding portion having a concave portion in which the male ant portion of the held portion can be inserted and movable in a direction perpendicular to the optical axis direction, and a concave portion of the holding portion. At least two positioning members for positioning the held portion by being brought into contact with a male ant portion that is movably disposed and inserted into the recess, and so as to face the positions of the positioning members disposed on the holding portion. Arranged in the holding portion, a contact member that is movably disposed toward the concave portion and that contacts the male ant portion inserted in the concave portion, an elastic member that can apply pressure to the contact member that contacts the male ant portion, and A pressure member that performs pressure holding in a state in which the elastic member has elasticity and pressure fixing in a state in which the elasticity of the elastic member is lost; Opposite the male ant portion of the pressure member Positioning provided with a lever member that contacts the end, and a fixing operation member that is disposed at a position opposite to the position of the pressure member disposed on the holding portion and that performs a fixing operation of the pressure member via the lever member In the fixing device, the holding portion rotatably supports the lever member at a position of one end of the lever member, and the other end of the lever member is brought into contact with the other end facing the male ant portion of the pressure member. This is a positioning and fixing device.
[0052]
【The invention's effect】
According to the positioning and fixing device for an optical device of the present invention, the position of the optical device including the diaphragm and the optical member can be reliably adjusted and fixed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a positioning and fixing device for an optical device according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a schematic configuration of an optical device positioning and fixing device according to the first embodiment of the present invention.
FIG. 3 is a diagram showing a schematic configuration of an optical device positioning and fixing device according to a second embodiment of the present invention.
FIG. 4 is a diagram showing a schematic configuration of an optical device positioning and fixing device according to a second embodiment of the present invention.
FIG. 5 is a diagram showing a schematic configuration of an optical device positioning and fixing device according to a third embodiment of the present invention.
FIG. 6 is a diagram showing a schematic configuration of a positioning and fixing device of an optical device according to a third embodiment of the present invention.
FIG. 7 is a diagram showing a schematic configuration of a positioning and fixing device of an optical device according to another embodiment of the present invention.
FIG. 8 is a diagram showing a schematic configuration of a conventional aperture opening / closing device with a centering adjustment mechanism.
[Explanation of symbols]
20 ... support part
23 ... Male ant
30 ... Holding part
300 ... holding part
310 ... holding part
32 ... recess
33 ... Screw hole
34 ... Screw hole
35 ... Sliding hole
305 ... Sliding hole
315 ... Sliding hole
36 ... Screw hole
38 ... side
40 ... Knob for positioning
50. Pressure member
52 ... Coil spring
60 ... Pressure member
70 ... Lever
600 ... Pressure member
610 ... Pressure member
710 ... Lever
72 ... Contact point
712 ... Contact point
73 ... Contact point
713 ... Contact point
80 ... Sliding bar
810 ... Sliding bar
90 ... Fixing knob
900 ... Fixing knob
910 ... Fixing knob

Claims (3)

  A held portion for holding an optical element;
  A holding part that supports the held part so as to be movable in a plane perpendicular to the optical axis of the optical element;
  Two positioning members that are provided so as to be movable with respect to the holding portion, and that abut and support the held portion to position the held portion;
  A pressure member provided at a position facing the positioning member, and configured by an elastic member having elasticity and an abutting member that abuts and supports the held portion via an elastic force of the elastic member;
  A fixing portion that fixes the held portion by applying a pressure to the pressure-resistant member so as to face the positioning member;
With
  The fixing part is
  A pressurizing member that is movably provided with respect to the holding portion and transmits a pressurizing force to the pressure-resistant member;
A lever member having one end abutting against the pressure member;
  A support member for rotatably holding the lever member;
  The lever extends so as to be parallel to the positioning member, is slidable in the extending direction with respect to the holding portion, is in contact with the other end of the lever member, and the lever is centered on the support member by the sliding. A sliding member that moves the pressure member by rotating the member;
A positioning and fixing device comprising:   The positioning member and the sliding member have a positioning knob for positioning operation and a fixing knob for fixing operation, respectively.
  The positioning and fixing device according to claim 1, wherein the positioning knob and the fixing knob are provided in parallel to the holding portion.   The moving direction of the positioning member and the moving direction of the sliding member are the same direction, and the positioning operation by the positioning member and the fixing operation by the fixing portion are possible from the same direction. Positioning and fixing device.

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