CN114488514A - Electric continuously adjustable pinhole device - Google Patents
Electric continuously adjustable pinhole device Download PDFInfo
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- CN114488514A CN114488514A CN202210196313.3A CN202210196313A CN114488514A CN 114488514 A CN114488514 A CN 114488514A CN 202210196313 A CN202210196313 A CN 202210196313A CN 114488514 A CN114488514 A CN 114488514A
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- continuously adjustable
- pinhole
- sliding block
- pinhole device
- adjustable pinhole
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
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Abstract
The invention discloses an electric continuously adjustable pinhole device, which belongs to the field of optical elements and comprises a sliding block and two knife rest structures, wherein the two knife rest structures are respectively and slidably arranged on the sliding block, each knife rest structure comprises a blade, the blades of the two knife rest structures are oppositely arranged, the end part of each blade is provided with a notch, the notches of the two blades form a pinhole, and the two knife rest structures respectively move relative to the sliding block to change the size and the position of the pinhole.
Description
Technical Field
The invention relates to the field of optical elements, in particular to an electric continuously adjustable pinhole device.
Background
The pinhole device mainly plays a spatial filtering function in the microscope, and the geometrical parameters of the pinhole are crucial to the efficiency of the laser scanning microscope. The size and position of the pinhole must be precisely controlled to strictly control the bandwidth and position of the spatial filtering, and the smaller the pinhole, the more precise the adjustment, and the higher the resolution of the laser scanning microscope can be realized. Most of the existing pinhole devices are manually adjusted, but the adjustment precision is low, the size of the pinhole cannot be continuously adjusted, and the central position of the pinhole is difficult to determine.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an electric continuously adjustable pinhole device which can adjust the position and the size of a pinhole.
One of the purposes of the invention is realized by adopting the following technical scheme:
the utility model provides an electronic continuously adjustable pinhole device, includes slider and two knife rest structure, two the knife rest structure respectively slidable mounting in the slider, each the knife rest structure includes the blade, two the blade of knife rest structure sets up relatively, each the blade tip is equipped with the breach, two the breach of blade forms the pinhole, two the knife rest structure is relative respectively the slider removes the messenger the size and the position change of pinhole.
Furthermore, electronic continuously adjustable pinhole device still includes support and altitude mixture control structure, slider slidable mounting in the support, the altitude mixture control structure drives the slider slides relatively the support is in order to adjust the height of pinhole.
Furthermore, the height adjusting structure further comprises an adjusting rod and a top plate, the top plate is fixed on the support, and the adjusting rod is rotatably installed on the top plate and matched with the sliding block.
Furthermore, the electric continuously adjustable pinhole device further comprises two driving parts, the two driving parts are respectively fixed on the sliding block, the output ends of the two driving parts are respectively connected with the two tool rest structures, and each driving part drives one tool rest structure to move relative to the sliding block.
Further, the driving piece is a motor, the tool rest structure further comprises a nut, and the nut is installed on the connecting block and matched with an output shaft of the motor.
Further, electronic continuously adjustable pinhole device still includes clearance mechanism that disappears, clearance mechanism that disappears includes the elastic component, the elastic component both ends respectively with two the connecting block of knife rest structure is contradicted, the elasticity of elastic component makes the connecting block receives the orientation the power of motor is in order to eliminate the thread clearance on the output screw of motor.
Further, the blade includes installation department and extension, the extension follows the installation department extends out, the thickness of extension is less than the thickness of installation department, extension one side forms lets the position portion, the breach is located the extension is kept away from the tip of installation department.
Furthermore, the extension part is also provided with a concave surface, and the concave surface enables the knife edge of the blade to be thinned.
Furthermore, the notch is triangular, and the pinhole is square.
Furthermore, the electric continuously adjustable pinhole device further comprises a detection element, the detection element is fixed on the sliding block, the tool rest structure further comprises a trigger piece, and the trigger piece moves along with the blade and triggers the detection element to detect and determine the pinhole zero point.
Compared with the prior art, the electric continuously adjustable pinhole device further comprises two knife rest structures, the two knife rest structures are respectively and slidably mounted on the sliding block, each knife rest structure comprises a blade, the blades of the two knife rest structures are oppositely arranged, a notch is formed in the end portion of each blade, a pinhole is formed by the notches of the two blades, the two knife rest structures respectively move relative to the sliding block to enable the size and the position of the pinhole to be changed, and the pinhole device can adjust the position of the pinhole and the size of the pinhole through one-time adjustment.
Drawings
FIG. 1 is a perspective view of an electrically powered continuously adjustable pinhole device of the present invention;
FIG. 2 is an exploded view of the electrically powered continuously adjustable pinhole device of FIG. 1;
FIG. 3 is a perspective view of a portion of the electrically driven continuously adjustable pinhole device of FIG. 2;
FIG. 4 is another perspective view of a portion of the electrically actuated continuously adjustable pinhole device of FIG. 2;
FIG. 5 is a perspective view of a tool holder of the electrically powered continuously adjustable pinhole device of FIG. 1;
fig. 6 is a schematic diagram of the two tool holders of the electric continuously adjustable pinhole device of fig. 1 for forming pinholes.
In the figure: 10. a support; 11. a back plate; 110. a chute; 12. a base plate; 20. a slider; 21. a main body; 210. a protrusion; 211. a through hole; 22. a linear guide rail; 30. a detection element; 40. a tool holder structure; 42. connecting blocks; 43. a nut; 44. a slide plate; 45. a blade; 450. an installation part; 4501. mounting holes; 451. an extension portion; 4510. a concave surface; 4511. a notch; 452. a relief portion; 46. a trigger; 50. a gap eliminating mechanism; 51. a guide bar; 52. an elastic member; 60. a height adjustment structure; 61. adjusting a rod; 62. a top plate; 70. a pinhole; 80. a drive member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 to 6 show an electric continuously adjustable pinhole device of the present invention, which includes a support 10, a slider 20, a detecting element 30, a tool holder structure 40, a gap eliminating mechanism 50, a height adjusting structure 60, and a driving member 80.
The bracket 10 includes a rear plate 11 and a bottom plate 12. The rear plate 11 is fixed to the base plate 12 and is perpendicular to the base plate 12. The back plate 11 is provided with a sliding groove 110, and the sliding groove 110 is used for installing the sliding block 20 so as to adjust the height of the pinhole 70. In the present embodiment, the sliding groove 110 is a dovetail groove.
The slider 20 includes a main body 21 and a linear guide 22. The linear guide 22 is fixed to the main body 21. The linear guide 22 is parallel to the horizontal plane. The body 21 is provided with a protrusion 210 and a through hole 211. The shape of the protrusion 210 corresponds to the shape of the sliding groove 110 in a dovetail shape. The extending direction of the through-hole 211 is perpendicular to the horizontal plane. The protrusion 210 of the slider 20 is installed in the slide groove 110 such that the slider 20 slides in a vertical direction with respect to the bracket 10.
The detecting element 30 is fixed to the slider 20, and the detecting element 30 detects the position of the pinhole 70 by detecting the position of the blade 45, thereby determining the zero point of the pinhole 70. In the present embodiment, the detection element 30 is an optical coupler. The number of the detecting elements 30 is two, and the two detecting elements 30 detect the positions of the two blades 45, respectively.
The number of the tool rest structures 40 is two, and the two tool rest structures 40 are respectively slidably mounted on the linear guide 22 of the slider 20. Each carriage structure 40 includes a connecting block 42, a nut 43, a slide 44, a blade 45, and a trigger 46. A nut 43 is mounted in the connecting block 42 for connection to the drive member 80. In this embodiment, the driving member 80 is a motor, and the motor includes an output screw, which is engaged with the nut 43, and drives the knife holder structure 40 to slide relative to the slider 20 through the motor. A slide 44 is fixed to the connecting block 42, the slide 44 cooperating with the linear guide 22 to allow the carriage structure 40 to slide relative to the slide 20. The blade 45 is fixed to the connecting block 42. In other embodiments, the drive member 80 may also be a pneumatic cylinder, and when the drive member 80 is a pneumatic cylinder,
the blade 45 includes a mounting portion 450 and an extension portion 451. The extension portion 451 extends from the mounting portion 450. The thickness of the extension portion 451 is smaller than that of the mounting portion 450. The extending portion 451 has a relief portion 452 formed thereon. The positioning portion 452 facilitates the insertion of the two blades 45 to form the needle hole 70. The mounting portion 450 is provided with a mounting hole 4501, and the mounting hole 4501 is used for fixing the blade 45 to the connecting block 42. The extension portion 451 is provided with a concave surface 4510 at a side away from the relief portion 452, so that the cutting edge of the blade 45 becomes thin for focusing. The end of the extension 451 remote from the mounting portion 450 is provided with a notch 4511, and the notch 4511 is used to form the needle hole 70. A pinhole 70 is formed between the two notches 4511 of the two blades 45. The two notches 4511 are not in the same horizontal plane and fit into each other. In this embodiment, the gap 4511 is triangular, and specifically, the gap 4511 is isosceles triangular.
The trigger 46 is fixed on the connecting block 42, the trigger 46 is provided with a trigger arm extending out, the trigger 46 moves along with the connecting block 42 and can extend into the detection element 30, so that the detection element 30 detects the position of the pinhole 70 by detecting the position of the blade 45, and the zero point of the pinhole 70 is determined.
When the driving member 80 is a motor, the electric continuously adjustable pinhole device further comprises a gap eliminating mechanism 50, and the gap eliminating mechanism 50 eliminates the thread gap on the output screw of the motor. The backlash mechanism 50 includes a guide rod 51 and an elastic member 52. The two tool holder structures 40 are slidably mounted on the guide rod 51, the elastic member 52 is sleeved on the guide rod 51, and two ends of the elastic member 52 respectively abut against the two tool holder structures 40, so that each tool holder structure 40 is subjected to an acting force towards the motor, and a thread gap on an output screw of the motor is eliminated.
The height adjusting structure 60 includes an adjusting bar 61 and a top plate 62. The top plate 62 is fixed to the top of the rear plate 11 of the stand 10. The adjustment lever 61 is rotatably mounted to the top plate 62 and is threadedly coupled to the top plate 62. The end of the adjustment rod 61 engages a threaded sleeve in the through hole 211 of the slider 20. By rotating the adjusting rod 61, the adjusting rod 61 drives the sliding block 20 to slide up and down, and the height of the pinhole 70 is adjusted.
The number of the driving members 80 is two. Two driving members 80 are fixed to the slide block 20 and the output ends are respectively connected to the two tool holder structures 40, and the driving members 80 drive the tool holder structures 40 to move along the linear guide 22.
When the electric continuously adjustable pinhole device is used, the two driving pieces 80 drive the tool rest structures 40 to move along the linear guide rails 22, and the pinholes 70 are formed between the notches 4511 of the two tool rest structures 40. In this embodiment, the pinhole 70 has a square shape. Since the two driving members 80 drive the tool holder structure 40 to move along the linear guide 22, the two notches 4511 move along with the tool holder structure, so that the position and the size of the needle hole 70 are adjusted simultaneously. The trigger 46 moves along with the connecting block 42 and can extend into the detection element 30, so that the detection element 30 detects the position of the pinhole 70 by detecting the position of the blade 45, determines the zero point of the pinhole 70, determines and calculates the movement distance according to the number of the motor movement steps, and reaches a preset position, thereby realizing the independent adjustment of the size and the horizontal position of the pinhole 70 by the blade 45. The electric continuously adjustable pinhole device adopts a precise stepping motor, the single-step displacement is 1.5 mu m, and the position of a zero point is determined by adopting an optical coupler, so that the high-precision electric continuous adjustment of the size and the horizontal direction of the pinhole 70 can be realized; high-precision adjustment of the screw bolt and the screw nut in the vertical direction can be realized by adopting a high-precision fine adjustment screw bolt and a fine adjustment screw nut with the screw pitch of 0.2mm, so that the alignment adjustment of the optical axis can be realized without an additional adjusting device.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.
Claims (10)
1. The utility model provides an electronic adjustable pinhole device in succession, includes the slider, its characterized in that: the electric continuously adjustable pinhole device further comprises two knife rest structures, wherein the two knife rest structures are respectively slidably mounted on the sliding block, each knife rest structure comprises a blade, the blades of the two knife rest structures are oppositely arranged, the end part of each blade is provided with a notch, the two notches of the blades form a pinhole, and the two knife rest structures are respectively opposite to the sliding block to move so that the size and the position of the pinhole are changed.
2. The motorized continuously adjustable pinhole device of claim 1, wherein: the electric continuously adjustable pinhole device further comprises a support and a height adjusting structure, wherein the sliding block is slidably mounted on the support, and the height adjusting structure drives the sliding block to slide relative to the support so as to adjust the height of the pinhole.
3. The motorized continuously adjustable pinhole device of claim 2, wherein: the height adjusting structure further comprises an adjusting rod and a top plate, the top plate is fixed to the support, and the adjusting rod is rotatably installed on the top plate and matched with the sliding block.
4. The motorized continuously adjustable pinhole device of claim 1, wherein: the electric continuously adjustable pinhole device further comprises two driving pieces, the two driving pieces are respectively fixed on the sliding block, the output ends of the two driving pieces are respectively connected with the two tool rest structures, and each driving piece drives one tool rest structure to move relative to the sliding block.
5. The motorized continuously adjustable pinhole device of claim 4, wherein: the driving piece is a motor, the tool rest structure further comprises a nut, and the nut is installed on the connecting block and matched with an output shaft of the motor.
6. The motorized continuously adjustable pinhole device of claim 5, wherein: the electric continuously adjustable pinhole device further comprises a gap eliminating mechanism, the gap eliminating mechanism comprises an elastic piece, two ends of the elastic piece are respectively abutted against the connecting blocks of the tool rest structure, and the elastic force of the elastic piece enables the connecting blocks to be oriented to the force of the motor so as to eliminate the thread gap on the output screw rod of the motor.
7. The motorized continuously adjustable pinhole device of claim 1, wherein: the blade includes installation department and extension, the extension follows the installation department extends, the thickness of extension is less than the thickness of installation department, extension one side forms lets the position portion, the breach is located the extension is kept away from the tip of installation department.
8. The motorized continuously adjustable pinhole apparatus of claim 7, wherein: the extension portion is further provided with a concave surface, and the concave surface enables the knife edge of the blade to be thin.
9. The motorized continuously adjustable pinhole device of claim 1, wherein: the notch is triangular, and the pinhole is square.
10. The motorized continuously adjustable pinhole device of claim 1, wherein: the electric continuously adjustable pinhole device further comprises a detection element, the detection element is fixed on the sliding block, the tool rest structure further comprises a trigger piece, and the trigger piece moves along with the blade and triggers the detection element to detect and determine the pinhole zero point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196313.3A CN114488514A (en) | 2022-03-01 | 2022-03-01 | Electric continuously adjustable pinhole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196313.3A CN114488514A (en) | 2022-03-01 | 2022-03-01 | Electric continuously adjustable pinhole device |
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| Publication Number | Publication Date |
|---|---|
| CN114488514A true CN114488514A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210196313.3A Pending CN114488514A (en) | 2022-03-01 | 2022-03-01 | Electric continuously adjustable pinhole device |
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| CN (1) | CN114488514A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159935A (en) * | 1995-12-12 | 1997-06-20 | Olympus Optical Co Ltd | Variable pinhole mechanism |
| CN101403803A (en) * | 2008-10-29 | 2009-04-08 | 清溢精密光电（深圳）有限公司 | Iris diaphragm and diaphragm regulating method |
| CN102819164A (en) * | 2012-07-23 | 2012-12-12 | 苏州生物医学工程技术研究所 | Electric flexible hinge pinhole filter |
| CN103698880A (en) * | 2013-12-26 | 2014-04-02 | 中国科学院苏州生物医学工程技术研究所 | Electric real-time adjustment method of two-dimensional pinhole for confocal laser scanning microscope |
| CN104614835A (en) * | 2015-02-15 | 2015-05-13 | 中国科学院国家天文台 | Adjustable rectangular aperture |
| CN211086786U (en) * | 2019-12-19 | 2020-07-24 | 中国科学院苏州生物医学工程技术研究所 | Pinhole two-dimensional adjusting device for laser scanning confocal microscope |
| CN211086093U (en) * | 2019-11-06 | 2020-07-24 | 北京卓立汉光仪器有限公司 | Continuously adjustable pinhole and Raman spectrum tester |
-
2022
- 2022-03-01 CN CN202210196313.3A patent/CN114488514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159935A (en) * | 1995-12-12 | 1997-06-20 | Olympus Optical Co Ltd | Variable pinhole mechanism |
| CN101403803A (en) * | 2008-10-29 | 2009-04-08 | 清溢精密光电（深圳）有限公司 | Iris diaphragm and diaphragm regulating method |
| CN102819164A (en) * | 2012-07-23 | 2012-12-12 | 苏州生物医学工程技术研究所 | Electric flexible hinge pinhole filter |
| CN103698880A (en) * | 2013-12-26 | 2014-04-02 | 中国科学院苏州生物医学工程技术研究所 | Electric real-time adjustment method of two-dimensional pinhole for confocal laser scanning microscope |
| CN104614835A (en) * | 2015-02-15 | 2015-05-13 | 中国科学院国家天文台 | Adjustable rectangular aperture |
| CN211086093U (en) * | 2019-11-06 | 2020-07-24 | 北京卓立汉光仪器有限公司 | Continuously adjustable pinhole and Raman spectrum tester |
| CN211086786U (en) * | 2019-12-19 | 2020-07-24 | 中国科学院苏州生物医学工程技术研究所 | Pinhole two-dimensional adjusting device for laser scanning confocal microscope |
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