CN114114658B - Zoom, focusing and visibility adjustment integrated lens and using method thereof - Google Patents
Zoom, focusing and visibility adjustment integrated lens and using method thereof Download PDFInfo
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- CN114114658B CN114114658B CN202111458878.6A CN202111458878A CN114114658B CN 114114658 B CN114114658 B CN 114114658B CN 202111458878 A CN202111458878 A CN 202111458878A CN 114114658 B CN114114658 B CN 114114658B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Abstract
The invention relates to an integrated lens for zooming, focusing and visibility adjustment and a using method thereof. The lens is formed by packaging a division group 1, a zoom group 2, a compensation group 3, an eyepiece group 4, a linear lens tube 5, a curved lens tube 6, a fixed lens tube 7, a zoom hand wheel 8, a focusing hand wheel 9, a visibility ring 10, a pressing ring 11, a friction ring 12, a limit screw 13, a special zoom screw 14, a special focusing screw 15, a special slider screw 16, a special visibility limit screw 17, a plurality of linear grooves and curved grooves distributed on three lens tubes. The invention integrates a plurality of adjusting mechanisms originally distributed at different positions of the product shell, greatly reduces the product volume, lightens the product weight and can realize the modularized production of optical adjustment under the condition of ensuring that the zooming, focusing and visibility adjusting functions are mutually independent and within the same adjusting range.
Description
Technical Field
The invention relates to the technical field of optical lenses, in particular to a zoom, focusing and visibility adjustment integrated lens and a using method thereof.
Background
The photoelectric technology is continuously improved, and the requirements of man-machine adaptability, reliability, modularization and the like of lens equipment are continuously improved. The optical adjusting mechanisms of the traditional lens, such as zooming, focusing, visibility adjustment and the like, are usually designed into three independent parts which are respectively positioned at different positions of the lens, and parts which are commonly used by each part are few or almost none. Practice shows that the design has the problems of poor operation convenience, easy misoperation and the like, and more importantly, the weight of the equipment is increased by a plurality of scattered adjusting mechanisms, and the modularized production is not facilitated.
Several optical lenses with different functions have been developed by this company, specifically refer to chinese patents CN112099182A, CN112099183A, CN111239991A, and CN110879452A. On the basis, technicians of the department continue to overcome the difficulty, and develop the zoom, focusing and visibility adjustment integrated lens, three modes required by optical adjustment are integrated, the same lens tube is used for multiple times, and the weight of the whole device is greatly reduced. In addition, the three adjusting modes correspond to three hand wheels which are sequentially arranged together in a step shape, so that the operation is simple and comfortable, and the modular production can be realized.
Disclosure of Invention
The invention provides an integrated lens for zooming, focusing and visibility adjustment, which comprises a zooming group 2, a compensation group 3, an eyepiece group 4, a linear lens tube 5, a curved lens tube 6, a fixed lens tube 7, a zooming hand wheel 8, a focusing hand wheel 9, a limit screw 13, a special zooming screw 14 and a special sliding block screw 16. Wherein the straight line mirror tube 5, the curve mirror tube 6 and the fixed mirror tube 7 are coaxially assembled together from inside to outside in sequence; the variable-magnification group 2 and the compensation group 3 are fixed together, and the optical assembly formed by the variable-magnification group and the compensation group is arranged inside the linear lens tube 5; the zooming hand wheel 8 is sleeved on the fixed mirror tube 7; the focusing hand wheel 9 is sleeved on the linear lens tube 5 and is connected with the linear lens tube 5 through a multi-start thread at the end part of the focusing hand wheel; the eyepiece group 4 is sleeved on the linear lens tube 5 and is connected with the linear lens tube 5 through a multi-start thread at the end part of the eyepiece group; the surface of the linear lens tube 5 is respectively provided with a focusing limit groove 18 and a zooming linear groove 19 along the axial direction, the surface of the curved lens tube 6 is respectively provided with a zooming focusing abdicating groove 20, a zooming curved groove 21 and a zooming connecting groove 22 along the axial direction, and the surface of the fixed lens tube 7 is provided with a zooming abdicating groove 23 along the radial direction; the special screw 16 for the slide block sequentially passes through the zooming curve slot 21 on the curve mirror tube 6 and the zooming straight slot 19 on the straight line mirror tube 5 and then is fixedly connected with the optical assembly, so that the linkage focusing of the straight line mirror tube 5 and the curve mirror tube 6 is realized; one end of a limit screw 13 is fixed on the fixed lens tube 7, and a guide column at the other end sequentially passes through a zoom focusing abdicating groove 20 on the curved lens tube 6 and a focusing limit groove 18 on the linear lens tube 5, so that the motion ranges of the linear lens tube 5 and the curved lens tube 6 are limited; one end of a special zooming screw 14 is fixed on the zooming hand wheel 8, and a guide column at the other end sequentially penetrates through a zooming yielding groove 23 on the fixed lens tube 7 and a zooming connecting groove 22 on the curved lens tube 6.
Preferably, the axial groove width of the zoom focus avoiding groove 20 is larger than the axial movement amount of the linear lens tube 5 during focusing, and the angle of the zoom focus avoiding groove 20 rotating in the circumferential direction is larger than the angle of rotation of the curved lens tube 6 during zooming, thereby ensuring the maximum and minimum magnifications of the zoom system.
Preferably, the axial length of the variable magnification connecting groove 22 is larger than the forward and backward movement of the linear lens tube 5 during focusing, so that the variable magnification group and the compensation group can reach the limit positions.
Preferably, the abdicating angle of the variable power abdicating groove 23 along the circumferential direction is larger than the rotating angle of the curved mirror tube 6 during variable power, thereby ensuring the maximum and minimum multiplying power of the variable power system.
Preferably, the lens further comprises a diopter ring 10, a special focusing screw 15 and a diopter limit screw 17. Wherein, the special focusing screw 15 is fixed on the fixed lens tube 7, the diopter ring 10 is sleeved on the end part of the linear lens tube 5 and locked by the eyepiece group 4, and then is arranged on the linear lens tube 5 through the diopter limit screw 17; two ends of the focusing hand wheel 9 are respectively clamped and limited by a special focusing screw 15 and a visibility ring 10, so that the focusing hand wheel 9 can only rotate on site and cannot move back and forth.
Preferably, the lens barrel further comprises a dividing group 1, and the dividing group 1 is fixedly connected with the linear lens tube 5 through threads at the end of the dividing group 1.
Preferably, the lens further comprises a pressing ring 11 and a friction ring 12. Wherein the friction ring 12 is sleeved between the linear mirror tube 5 and the curved mirror tube 6, and the pressing ring 11 is fixed at the end part of the linear mirror tube 5. The pressing ring 11 can ensure that the curved mirror tube 6 only rotates and does not move back and forth, and the friction ring 12 can reduce the friction force of the mutual rotation of metal parts.
The application method of the zoom, focus and visibility adjustment integrated lens comprises the following steps: (a) zooming: the zooming hand wheel 8 is rotated, the special zooming screw 14 fixedly connected with the zooming hand wheel drives the curved mirror tube 6 to rotate, the special sliding block screw 16 moves along the zooming curved groove 21 of the curved mirror tube 6, and the optical assembly is driven to move back and forth along the zooming linear groove 19 of the linear mirror tube 5 to realize the zooming function of the lens;
(b) Focusing: the focusing hand wheel 9 is rotated in situ, the linear lens tube 5 and the optical assembly consisting of the zoom group 2 and the compensation group 3 inside the linear lens tube integrally move back and forth under the transmission of the multi-start thread, thereby realizing the focusing function;
(c) And (3) adjusting the visibility: the eyepiece group 4 is rotated and moves back and forth in the linear lens tube 5, thereby realizing the adjustment of the visibility.
The invention realizes the integration of zooming, focusing and diopter adjustment through the rotation of the zooming hand wheel 8, the focusing hand wheel 9, the eyepiece group 4 and the like. In addition, a plurality of special screws, limiting screws and wire grooves are additionally arranged at specific positions among the linear lens tube 5, the curve lens tube 6 and the fixed lens tube 7, so that the zoom, focusing and visibility adjusting functions are independent and do not influence each other in use. The zoom, focusing and visibility adjustment integrated assembly provided by the invention can integrate a plurality of adjustment mechanisms originally distributed at three different positions of a product shell, greatly reduces the volume of the product in the same adjustment range, reduces the weight of the product, and can realize the modular production of optical adjustment. The lens product has the advantages of small volume, light weight, simple operation, modularized production and convenient installation, and has been successfully applied to certain industrial equipment and has good economic benefit.
Drawings
FIG. 1 is a cross-sectional view of the zoom, focus, and diopter adjustment integrated lens of the present invention along the axial direction;
FIG. 2 is a schematic plan view of a linear mirror tube;
FIG. 3 is a schematic plan view of a curved mirror tube;
FIG. 4 is a schematic plan view of a fixed lens tube;
FIG. 5 is a perspective view of the fixed mirror tube;
FIG. 6 is a schematic view of an eyepiece assembly;
FIG. 7 is a schematic view of a zoom group structure;
FIG. 8 is a schematic diagram of a compensation group structure.
Wherein 1-division group, 2-zoom group, 3-compensation group, 4-eyepiece group, 5-linear lens tube, 6-curved lens tube, 7-fixed lens tube, 8-zoom hand wheel, 9-focusing hand wheel, 10-diopter ring, 11-pressing ring, 12-friction ring, 13-limit screw, 3-zoom group, 3-compensation group, 6-curved lens tube, 7-fixed lens tube, 8-zoom hand wheel, 9-focusing hand wheel, 1-diopter ring, 11-pressing ring, 12-friction ring, 13-limiting screw, and 14-a special zoom screw, 15-a special focusing screw, 16-a special slide block screw, 17-a visibility limiting screw, 18-a focusing limiting groove, 19-a zoom linear groove, 20-a zoom focusing abdicating groove, 21-a zoom curve groove, 22-a zoom connecting groove and 23-a zoom abdicating groove.
Detailed Description
In order to make those skilled in the art fully understand the technical solutions and advantages of the present invention, the following description is further provided with reference to the specific embodiments and the accompanying drawings.
All directions such as front, back, left, right, upper and lower directions described in the specification of the present invention are directions illustrated in the drawings.
Fig. 1 is a half-section schematic view of a vertical plane where a zoom, focus, and diopter adjustment integrated lens provided by the present invention is located along a center line (i.e., an axis). As is apparent from fig. 1, the lens includes a division group 1, a zoom group 2, a compensation group 3, an eyepiece group 4, a linear lens tube 5, a curved lens tube 6, a fixed lens tube 7, a zoom hand wheel 8, a focusing hand wheel 9, a diopter ring 10, a pressing ring 11, a friction ring 12, a limit screw 13, a zoom special screw 14, a focusing special screw 15, a slider special screw 16, a diopter limit screw 17, and the like. Wherein the fixed lens tube 7 is fixed on the optical instrument main body, and other parts are directly or indirectly assembled with the fixed lens tube 7. The specific structures of the zoom group 2, the compensation group 3 and the eyepiece group 4 are shown in fig. 6-8, and refer to a series of patents previously filed by me, such as CN112099183A, etc.
As shown in FIG. 2, a focusing limiting groove 18 and a zooming linear groove 19 which are different in length are arranged on the surface of the linear mirror tube 5 in parallel with the axis, wherein the length of the zooming linear groove 19 is larger than that of the focusing limiting groove 18. As shown in fig. 3, a variable-magnification focusing abdicating groove 20 with a certain width and span, a spiral variable-magnification curve groove 21 and a variable-magnification connecting groove 22 parallel to the axis are arranged on the surface of the curved mirror tube 6 along the radial direction. As shown in FIG. 4, a zoom abdicating groove 23 is formed in the radial direction on the surface of the fixed mirror tube 7. Among the three lens tubes, the diameters of the linear lens tube 5, the curved lens tube 6 and the fixed lens tube 7 are sequentially increased and assembled together from small to large. The fixed mirror tube 7 is connected to an external structure (e.g. a fixed base or foundation) and is fixed in use and adjustment. The linear mirror tube 5 and the curve mirror tube 6 rotate or move back and forth along the central shaft during adjustment.
Specifically, the linear lens tube 5 and the curved lens tube 6 are sleeved in the fixed lens tube 7, the limit screw 13 is fixed at the front end of the fixed lens tube 7, and the guide post of the limit screw 13 firstly penetrates through the zoom focusing abdicating groove 20 on the curved lens tube 6 and then penetrates into the focusing limit groove 18 on the linear lens tube 5. The focusing hand wheel 9 is fixed on the linear lens tube 5 through a multi-start thread of the focusing hand wheel, and is axially limited through a special focusing screw 15. The zooming handwheel 8 is linked with the curved mirror tube 6 through a special zooming screw 14. One end of the special zooming screw 14 is fixed on the zooming handwheel 8, and the guide column at the other end firstly passes through the zooming abdicating groove 23 on the fixed lens tube 7 and then passes through the zooming connecting groove 22 on the curved lens tube 6. During installation, the curve mirror tube 6 and the friction ring 12 are sequentially sleeved outside the straight line mirror tube 5, then the pressing ring 11 is fixed on the straight line mirror tube 5, the front position and the rear position of the pressing ring 11 are adjusted to avoid pressing the curve mirror tube 6, and the pressing ring 11 is fastened through a stop screw after being adjusted in place. Then the zooming group 2 and the compensation group 3 are pushed into the linear mirror tube 5, and then the special screw 16 for the slide block sequentially passes through the zooming curve slot 21 on the curve mirror tube 6 and the zooming straight slot 19 on the linear mirror tube 5 and is finally fixed on the combination of the zooming group 2 and the compensation group 3. The partition group 1 is screwed into the front end of the linear lens tube 5 through self threads and is fastened by a stop screw. The visibility ring 10 is sleeved in the rear end of the linear lens tube 5, the eyepiece group 4 is connected to the rear end of the linear lens tube 5 through a multi-thread of the eyepiece group 4 and fixes the visibility ring 10, and finally the visibility limiting screw 17 is arranged to limit the adjustment range of the eyepiece, and all sliding parts are coated with lubricating oil in advance for lubrication.
In the application, the limit screw 13, the zoom special screw 14, the focusing special screw 15, the slider special screw 16, the zoom focusing abdicating groove 20, the zoom connecting groove 22, the zoom abdicating groove 23 and the like are all designed in a novel and ingenious manner. The limiting screw 13 is used for preventing the linear lens tube 5 from rotating in the focusing process and limiting the axial focusing movement amount; the special zooming screw 14 is used for driving the curved mirror tube 6 to rotate when the zooming hand wheel 8 is rotated; the special focusing screw 15 is used for limiting the focusing hand wheel 9 to rotate in place; the special screw 16 for the sliding block is used for preventing the zoom group 2 and the compensation group 3 from rotating in the zooming process and limiting the axial movement amount of the zoom group 2 and the compensation group 3.
When zooming is needed, the zooming hand wheel 8 is rotated, the special zooming screw 14 is utilized to drive the curved mirror tube 6 to rotate, the special slider screw 16 slides along the zooming curved slot 21 in the curved mirror tube 6, and the zooming group 2 and compensation group 3 combination connected with the special slider screw 16 is driven to translate back and forth in the linear mirror tube 5 to realize the zooming function. In this process, the length of the variable magnification curved groove 21 and the variable magnification linear groove 19 determines the variable magnification capability of the lens.
When focusing is needed, the focusing hand wheel 9 is rotated and is limited to rotate in situ by the special focusing screw 15, and the linear lens tube 5 moves back and forth under the transmission action of the multi-start thread between the focusing hand wheel 9 and the linear lens tube 5 to realize the focusing function. During the period, the rotation behavior of the linear lens tube 5 in the focusing process is limited by the limit screw 13 which is arranged on the fixed lens tube 7 and penetrates through the curve lens tube 6 zoom focusing abdicating groove 20 and the linear lens tube 5 focusing limit groove 18.
When the diopter is needed to be adjusted, the eyepiece group 4 is rotated and moves back and forth in the linear lens tube 5 through the transmission of the multi-start thread to realize diopter adjustment. During the period, the visibility ring 10 is fixed on the linear lens tube 5 through a visibility limiting screw 17 to limit the adjustment range of the ocular visibility.
The zoom, focus and visibility adjustment integrated lens provided by the invention arranges the three adjustment handwheels together, so that the man-machine effect is greatly improved, the misoperation is not easy to occur, the volume and weight of the whole equipment are reduced, and the stability of the equipment is also greatly improved.
Claims (8)
1. The utility model provides a become doubly, focusing, diopter adjust integrated lens which characterized in that: the lens comprises a zoom group (2), a compensation group (3), an eyepiece group (4), a linear lens tube (5), a curved lens tube (6), a fixed lens tube (7), a zoom hand wheel (8), a focusing hand wheel (9), a diopter ring (10), a limit screw (13), a special zoom screw (14), a special focusing screw (15), a special slide block screw (16) and a diopter limit screw (17); wherein the diameters of the straight line mirror tube (5), the curve mirror tube (6) and the fixed mirror tube (7) are sequentially increased and are sequentially coaxially assembled together from small to large; the zoom group (2) and the compensation group (3) are fixed together, and the optical assembly formed by the zoom group and the compensation group is arranged inside the linear lens tube (5); a zoom hand wheel (8) is sleeved on the fixed mirror tube (7); the focusing hand wheel (9) is sleeved on the linear mirror tube (5) and is connected with the linear mirror tube (5) through a multi-start thread at the end of the focusing hand wheel; the eyepiece group (4) is sleeved on the linear lens tube (5) and is connected with the linear lens tube (5) through a multi-start thread at the end of the eyepiece group; the surface of the linear lens tube (5) is respectively provided with a focusing limit groove (18) and a zooming linear groove (19) along the axial direction, the surface of the curved lens tube (6) is respectively provided with a zooming focusing abdicating groove (20), a zooming curved groove (21) and a zooming connecting groove (22) along the axial direction, and the surface of the fixed lens tube (7) is radially provided with a zooming abdicating groove (23); a special screw (16) for the sliding block passes through a zooming curve groove (21) on the curve mirror tube (6) and a zooming straight line groove (19) on the straight line mirror tube (5) in sequence and then is fixedly connected with the optical assembly; one end of a limit screw (13) is fixed on the fixed lens tube (7), and a guide column at the other end sequentially passes through a zoom focusing abdicating groove (20) on the curved lens tube (6) and a focusing limit groove (18) on the linear lens tube (5); one end of a special zooming screw (14) is fixed on a zooming hand wheel (8), and a guide column at the other end sequentially penetrates through a zooming abdicating groove (23) on the fixed mirror tube (7) and a zooming connecting groove (22) on the curved mirror tube (6); a special focusing screw (15) is fixed on the fixed lens tube (7), a diopter ring (10) is sleeved at the end part of the linear lens tube (5) and locked by the eyepiece group (4), and then is installed on the linear lens tube (5) through a diopter limit screw (17); when focusing is needed, a focusing hand wheel (9) is rotated and is limited to rotate in situ by a special focusing screw (15), and the linear lens tube (5) moves back and forth under the transmission action of multi-start threads between the focusing hand wheel (9) and the linear lens tube (5) to realize a focusing function; when the visibility needs to be adjusted, the eyepiece group (4) is rotated, the eyepiece group moves back and forth in the linear lens tube (5) through the transmission of the multi-start thread to realize the visibility adjustment, and the visibility ring (10) is fixed on the linear lens tube (5) through the visibility limiting screw (17) to limit the range of the visibility adjustment of the eyepiece.
2. The zoom, focus, and diopter adjustment integrated lens of claim 1, wherein: the axial groove width of the zooming focusing abdicating groove (20) is larger than the axial movement amount of the linear lens tube (5) during focusing, and the rotating angle of the zooming focusing abdicating groove (20) along the circumferential direction is larger than the rotating angle of the curved lens tube (6) during zooming.
3. The zoom, focus, and diopter adjustment integrated lens of claim 1, wherein: the axial length of the zooming connecting groove (22) is larger than the horizontal movement amount of the linear lens tube (5) during focusing.
4. The zoom, focus, and diopter adjustment integrated lens of claim 1, wherein: the abdicating angle of the zooming abdicating groove (23) along the circumferential direction is larger than the rotating angle of the curved mirror tube (6) during zooming.
5. The zoom, focus, and diopter adjustment integrated lens of claim 1, wherein: two ends of the focusing hand wheel (9) are respectively clamped and limited by a special focusing screw (15) and a visibility ring (10) so that the focusing hand wheel can only rotate in situ.
6. The zoom, focus, and diopter adjustment integrated lens of claim 1, wherein: the lens also comprises a dividing group (1), and the dividing group (1) is fixedly connected with the linear lens tube (5) through threads at the end part of the dividing group.
7. The zoom, focus, and diopter adjustment integrated lens of claim 1, wherein: the lens further comprises a pressing ring (11) and a friction ring (12), wherein the friction ring (12) is sleeved between the linear lens tube (5) and the curved lens tube (6), and the pressing ring (11) is fixed at the end of the linear lens tube (5).
8. The method of using the zoom, focus, and diopter adjustment integrated lens of claim 1, comprising the steps of:
(a) Zooming: a zooming hand wheel (8) is rotated, a special zooming screw (14) fixedly connected with the zooming hand wheel drives a curved mirror tube (6) to rotate, a special sliding block screw (16) moves along a zooming curved groove (21) of the curved mirror tube (6) to drive an optical assembly to move back and forth along a zooming linear groove (19) of a linear mirror tube (5) to realize the zooming function of the lens;
(b) Focusing: the focusing hand wheel (9) is rotated in situ, the linear lens tube (5) and the optical assembly consisting of the zoom group (2) and the compensation group (3) inside the linear lens tube move back and forth integrally under the transmission of the multi-start thread, so that the focusing function is realized;
(c) And (3) adjusting the visibility: the rotating ocular group (4) moves back and forth in the linear lens tube (5), thereby realizing the adjustment of the visibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458878.6A CN114114658B (en) | 2021-12-02 | 2021-12-02 | Zoom, focusing and visibility adjustment integrated lens and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458878.6A CN114114658B (en) | 2021-12-02 | 2021-12-02 | Zoom, focusing and visibility adjustment integrated lens and using method thereof |
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| Publication Number | Publication Date |
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| CN114114658A CN114114658A (en) | 2022-03-01 |
| CN114114658B true CN114114658B (en) | 2023-04-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115857156B (en) * | 2023-02-28 | 2023-05-12 | 中山市美景光学信息有限公司 | Long-focus eyepiece optical system capable of reducing vision adjusting range |
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| JP2007193212A (en) * | 2006-01-20 | 2007-08-02 | Fujinon Corp | Zoom lens |
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| JP4626231B2 (en) * | 2004-09-03 | 2011-02-02 | 株式会社ニコン | Lens barrel |
| TWI420142B (en) * | 2011-02-17 | 2013-12-21 | Asia Optical Co Inc | Zoom lens module |
| CN202025151U (en) * | 2011-03-30 | 2011-11-02 | 秦源谦 | Variable-lens and zooming glasses |
| CN108008518B (en) * | 2017-12-13 | 2020-08-11 | 湖北华中光电科技有限公司 | High-precision continuous zoom lens based on hyperbolic groove |
| CN111239991A (en) * | 2018-11-28 | 2020-06-05 | 湖北华中光电科技有限公司 | Continuous zoom lens |
| CN109696740B (en) * | 2019-03-08 | 2024-03-19 | 福建福光股份有限公司 | Large-target-surface high-definition zoom-shooting integrated lens and working method thereof |
| CN112099182A (en) * | 2020-09-29 | 2020-12-18 | 湖北华中光电科技有限公司 | Large-view-field high-zoom-ratio continuous zoom lens based on double-group compensation |
| CN214252738U (en) * | 2021-02-02 | 2021-09-21 | 江苏宇迪光学股份有限公司 | Novel eyepiece diopter is adjusted device |
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- 2021-12-02 CN CN202111458878.6A patent/CN114114658B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005044726A (en) * | 2003-07-25 | 2005-02-17 | Fujinon Corp | Electronic equipment |
| JP2007193212A (en) * | 2006-01-20 | 2007-08-02 | Fujinon Corp | Zoom lens |
| CN102038484A (en) * | 2009-10-11 | 2011-05-04 | 杨利尔 | Wide-angle zoom fundus instrument |
| CN202693901U (en) * | 2012-06-06 | 2013-01-23 | 昆明腾洋光学仪器有限公司 | Composite focusing device of telescope |
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| Publication number | Publication date |
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| CN114114658A (en) | 2022-03-01 |
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