CN210626756U - Focusing mechanism of beam expanding lens - Google Patents
Focusing mechanism of beam expanding lens Download PDFInfo
- Publication number
- CN210626756U CN210626756U CN201921402478.1U CN201921402478U CN210626756U CN 210626756 U CN210626756 U CN 210626756U CN 201921402478 U CN201921402478 U CN 201921402478U CN 210626756 U CN210626756 U CN 210626756U
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- Prior art keywords
- beam expanding
- expanding lens
- lens
- focusing
- beam expander
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- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000007858 starting material Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a beam expanding lens technical field just discloses a beam expanding lens focusing mechanism, including the beam expanding lens, one side of beam expanding lens inner chamber is equipped with the light path and penetrates the mouth, and the opposite side of beam expanding lens inner chamber is equipped with the light path and jets out lens, the middle part of beam expanding lens inner chamber top and bottom is fixed the cover respectively and is equipped with bracing piece and activity cover and is equipped with two-way lead screw, the both ends of bracing piece and two-way lead screw are equallyd divide do not the activity cover and are equipped with slider and screw thread cover and are. This beam expanding lens focusing mechanism drives the epaxial second helical gear of commentaries on classics through starter motor and rotates, drives the two-way lead screw that lies in beam expanding lens inside through the meshing transmission of gear and rotates to the support and the spacing of cooperation bracing piece drive down slider and last slider simultaneous movement, and then drive the relative or opposite direction's of focusing lens between two sets of top shoes and the lower slider motion, jet out the lens cooperation with the light path and carry out high efficiency, focusing work of high accuracy.
Description
Technical Field
The utility model relates to a beam expanding lens technical field specifically is a beam expanding lens focusing mechanism.
Background
Focusing, focusing and focusing, which means to change the image distance V, that is, the distance between the optical center of a lens and a film plane, for a microscope, focusing is an adjusting process for adjusting the distance between an objective lens and a measured object to obtain a clear image of the object, and we know the principle of lens imaging, an image always has a clearest position on a screen (a film or a photosensitive element of a camera), which is a position where light rays converge, and numerous points form a plane, which is called a focal plane, and focusing is to change the front and back positions of the focal point.
However, the focusing mechanism of the existing beam expander is usually adjusted by manual rotation, the manual adjustment precision is low, and the focusing mechanism of the existing beam expander is usually focused only by a group of movable lenses, and the focusing efficiency is poor.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, the utility model provides a beam expanding lens focusing mechanism possesses the advantage that improves focusing efficiency and precision, has solved current beam expanding lens focusing mechanism and has all adjusted through manual rotation usually, and manual regulation precision is lower, and current beam expanding lens's focusing mechanism only focuses through a set of mobilizable lens usually, problem that focusing efficiency is poor.
The utility model provides a following technical scheme: a focusing mechanism of a beam expander comprises a beam expander, wherein one side of an inner cavity of the beam expander is provided with a light path injection port, the other side of the inner cavity of the beam expander is provided with a light path injection lens, the middle parts of the top end and the bottom end of the inner cavity of the beam expander are respectively fixedly sleeved with a support rod and movably sleeved with a bidirectional screw rod, two ends of the support rod and the bidirectional screw rod are respectively and movably sleeved with an upper slider and a lower slider respectively, a focusing lens is fixedly installed between the upper slider and the lower slider, one end of the bidirectional screw rod is fixedly sleeved with a first helical gear, the bottom of the first helical gear is engaged with a first conical gear, the bottom of the first conical gear is fixedly sleeved with a fixed shaft, the bottom of the fixed shaft is fixedly sleeved with a second conical gear, one side of the bottom of the beam expander is fixedly installed with a case, the inside of the, the fixed cover of one end of pivot is equipped with the second helical gear, the top fixed mounting of beam expanding lens has the controller, and the top and the bottom of beam expanding lens shell body inner chamber all fixed cover are equipped with the ventilation pipe.
Preferably, the top of the inner cavity of the vent pipe is fixedly connected with a heat dissipation plate, the top of the heat dissipation plate is fixedly connected with a heat conduction piece penetrating through the vent pipe, and the bottom of the heat conduction piece is fixedly connected with a heat conduction plate located inside the beam expanding lens.
Preferably, the number of the upper sliding block and the lower sliding block is two, and two groups of focusing lenses are fixedly arranged between the upper sliding block and the lower sliding block and are symmetrically distributed at two ends of the two-way screw rod.
Preferably, the fixed shaft penetrates through the heat conduction plate and the shell of the beam expanding lens, and the fixed shaft is movably sleeved on the heat conduction plate and the shell of the beam expanding lens.
Preferably, the outer edge of the second bevel gear is meshed with the outer edge of the second tapered tooth.
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. this beam expanding lens focusing mechanism drives the epaxial second helical gear of commentaries on classics through starter motor and rotates, drives the two-way lead screw that lies in beam expanding lens inside through the meshing transmission of gear and rotates to the support and the spacing of cooperation bracing piece drive down slider and last slider simultaneous movement, and then drive the relative or opposite direction's of focusing lens between two sets of top shoes and the lower slider motion, jet out the lens cooperation with the light path and carry out high efficiency, focusing work of high accuracy.
2. This beam expanding lens focusing mechanism, through being located the inside heat-conducting plate of beam expanding lens, conduct the heat of its inside production in the beam expanding lens use to being located the inside heating panel of ventilation pipe through the heat-conducting piece on to the natural draft that utilizes two ventilation pipes dispels the heat to the heating panel, improves the heat dispersion of beam expanding lens, is favorable to beam expanding lens's stable use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the ventilation pipe of the present invention.
In the figure: 1. a beam expander; 2. an optical path entrance; 3. an optical path emitting lens; 4. a support bar; 5. a bidirectional screw rod; 6. an upper slide block; 7. a lower slide block; 8. a focusing lens; 9. a first helical gear; 10. a first tapered tooth; 11. a fixed shaft; 12. second tapered teeth; 13. a chassis; 14. a motor; 15. a rotating shaft; 16. a second helical gear; 17. a controller; 18. a vent pipe; 181. a heat dissipation plate; 182. a heat conductive member; 183. a heat conducting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a focusing mechanism of a beam expander comprises a beam expander 1, a light path injection port 2 is arranged at one side of an inner cavity of the beam expander 1, a light path injection lens 3 is arranged at the other side of the inner cavity of the beam expander 1, a support rod 4 and a bidirectional screw 5 are respectively fixedly sleeved at the middle parts of the top end and the bottom end of the inner cavity of the beam expander 1, a limiting and supporting structure for a focusing lens 8 is formed by the cooperation of the support rod 4 and an upper slide block 6, on one hand, a lower slide block 7 and a focusing lens 8 on the bidirectional screw 5 can be limited to avoid rotating along with the bidirectional screw 5, on the other hand, the movement of the lower slide block 7 and the focusing lens 8 can be supported to improve the stability during movement, the upper slide block 6 and the lower slide block 7 are respectively movably sleeved at two ends of the support rod 4 and the bidirectional screw 5, the number of the upper, focusing lenses 8 are fixedly arranged between the two groups of upper sliders 6 and the lower slider 7, the focusing efficiency of the beam expander 1 can be improved by arranging two groups of movable focusing lenses 8 and matching with the light path ejection lens 3 with a fixed position, meanwhile, the focusing of the device is performed by controlling the motor 14 through the controller 17, so that compared with manual adjustment, the focusing precision is higher and more convenient, the two focusing lenses 8 are symmetrically distributed at two ends of the bidirectional screw rod 5, the focusing lens 8 is fixedly arranged between the upper slider 6 and the lower slider 7, one end of the bidirectional screw rod 5 is fixedly sleeved with a first helical gear 9, the bottom of the first helical gear 9 is meshed with a first conical tooth 10, the bottom of the first conical tooth 10 is fixedly sleeved with a fixed shaft 11, the fixed shaft 11 penetrates through the heat-conducting plate 183 and the shell of the beam expander 1, and the fixed shaft 11 is movably sleeved on the heat-conducting plate 183 and the shell of the beam expander 1, the bottom of the fixed shaft 11 is fixedly sleeved with second conical teeth 12, one side of the bottom of the beam expander 1 is fixedly provided with a case 13, the inside of the case 13 is fixedly provided with a motor 14, an output shaft of the motor 14 is fixedly sleeved with a rotating shaft 15, one end of the rotating shaft 15 is fixedly sleeved with a second helical gear 16, the outer edge of the second helical gear 16 is meshed with the outer edge of the second conical teeth 12, the device realizes the driving of the motor 14 on the bidirectional screw rod 5 through the mutual matching of the first helical gear 9, the first conical teeth 10, the second conical teeth 12 and the second helical gear 16, ensures the relative sealing state of the body of the beam expander 1, the top of the beam expander 1 is fixedly provided with a controller 17, the top and the bottom of an inner cavity of a shell of the beam expander 1 are fixedly sleeved with vent pipes 18, the top of the inner cavity of the vent pipes 18 is fixedly connected with a heat dissipation plate 181, the bottom fixedly connected with of heat conduction piece 182 is located the inside heat-conducting plate 183 of beam expander 1, this device is through being located the inside heat-conducting plate 183 of beam expander 1, the heat of its inside production in the use of beam expander 1 is conducted to being located the inside heating panel 181 of ventilation pipe 18 through heat conduction piece 182, thereby utilize the natural draft of two ventilation pipes 18 to dispel the heat to heating panel 181, and then realize the heat dissipation to beam expander 1 inside, improve the heat dispersion of beam expander 1, be favorable to the stability of beam expander 1 use.
The working principle is as follows: firstly, when focusing on the beam expander 1 is required, the controller 17 starts the motor 14, the motor 14 drives the second bevel gear 16 on the rotating shaft 15 to rotate, the second bevel gear 16 rotates to drive the second bevel gear 12 to rotate, the second bevel gear 12 rotates to drive the fixed shaft 11 and the first bevel gear 10 to rotate, the first bevel gear 10 rotates to drive the first bevel gear 9 to rotate, thereby driving the bidirectional screw 5 to rotate, then the support and the limit of the support rod 4 are utilized to drive the lower slider 7 and the upper slider 6 to move, thereby driving the focusing lens 8 between the two sets of upper slider 6 and the lower slider 7 to move relatively or in opposite directions to cooperate with the light path emitting lens 3 to carry out focusing, finally, in the using process of the beam expander 1, heat generated inside the beam expander 1 in the using process is conducted to the heat dissipation plate 181 inside the vent pipe 18 through the heat conduction piece 182, thus, the natural ventilation of the two ventilation pipes 18 is utilized to dissipate heat of the heat dissipation plate 181, and further, the heat dissipation of the inside of the beam expanding lens 1 is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a beam expander focusing mechanism, includes beam expander (1), its characterized in that: one side of the inner cavity of the beam expanding lens (1) is provided with a light path emitting port (2), the other side of the inner cavity of the beam expanding lens (1) is provided with a light path emitting lens (3), the middle parts of the top end and the bottom end of the inner cavity of the beam expanding lens (1) are respectively fixedly sleeved with a support rod (4) and a movable sleeve is provided with a bidirectional screw rod (5), the two ends of the support rod (4) and the bidirectional screw rod (5) are respectively and fixedly sleeved with an upper sliding block (6) and a lower sliding block (7) in a threaded sleeve manner, a focusing lens (8) is fixedly installed between the upper sliding block (6) and the lower sliding block (7), one end of the bidirectional screw rod (5) is fixedly sleeved with a first helical gear (9), the bottom of the first helical gear (9) is meshed with a first tapered tooth (10), the bottom of the first tapered tooth (10) is fixedly sleeved with a fixed shaft (, one side fixed mounting of beam expanding lens (1) bottom has quick-witted case (13), the inside fixed mounting of machine case (13) has motor (14), fixed cover is equipped with pivot (15) on the output shaft of motor (14), the fixed cover of one end of pivot (15) is equipped with second helical gear (16), the top fixed mounting of beam expanding lens (1) has controller (17), and the equal fixed cover in top and the bottom of beam expanding lens (1) shell body inner chamber is equipped with ventilation pipe (18).
2. The beam expander focusing mechanism of claim 1, wherein: the heat dissipation plate is characterized in that a heat dissipation plate (181) is fixedly connected to the top of the inner cavity of the ventilation pipe (18), a heat conduction piece (182) penetrating through the ventilation pipe (18) is fixedly connected to the top of the heat dissipation plate (181), and a heat conduction plate (183) located inside the beam expanding lens (1) is fixedly connected to the bottom of the heat conduction piece (182).
3. The beam expander focusing mechanism of claim 1, wherein: the number of the upper sliding block (6) and the lower sliding block (7) is two, and two groups of focusing lenses (8) are fixedly mounted between the upper sliding block (6) and the lower sliding block (7) and are symmetrically distributed at two ends of the two-way screw rod (5).
4. The beam expander focusing mechanism of claim 1, wherein: the fixed shaft (11) penetrates through the heat conduction plate (183) and the shell of the beam expander (1), and the fixed shaft (11) is movably sleeved on the heat conduction plate (183) and the shell of the beam expander (1).
5. The beam expander focusing mechanism of claim 1, wherein: the outer edge of the second bevel gear (16) is meshed with the outer edge of the second conical tooth (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921402478.1U CN210626756U (en) | 2019-08-27 | 2019-08-27 | Focusing mechanism of beam expanding lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921402478.1U CN210626756U (en) | 2019-08-27 | 2019-08-27 | Focusing mechanism of beam expanding lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210626756U true CN210626756U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921402478.1U Expired - Fee Related CN210626756U (en) | 2019-08-27 | 2019-08-27 | Focusing mechanism of beam expanding lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210626756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113729608A (en) * | 2021-09-24 | 2021-12-03 | 辽宁鑫康源微创医疗器械有限公司 | Disposable arthroscope |
-
2019
- 2019-08-27 CN CN201921402478.1U patent/CN210626756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113729608A (en) * | 2021-09-24 | 2021-12-03 | 辽宁鑫康源微创医疗器械有限公司 | Disposable arthroscope |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |