CN102269856B - Optical system focusing mechanism - Google Patents
Optical system focusing mechanism Download PDFInfo
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- CN102269856B CN102269856B CN201110193673XA CN201110193673A CN102269856B CN 102269856 B CN102269856 B CN 102269856B CN 201110193673X A CN201110193673X A CN 201110193673XA CN 201110193673 A CN201110193673 A CN 201110193673A CN 102269856 B CN102269856 B CN 102269856B
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- focusing
- outer sleeve
- optical system
- drawtube
- lens barrel
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Abstract
The invention discloses an optical system focusing mechanism. The optical system focusing mechanism comprises a focusing lens barrel, and a focusing seat, an external sleeve is sleeved on the focusing lens barrel, the focusing seat is fixed on the external sleeve, and the external sleeve, the focusing lens barrel and the optical system are coaxially arranged; a slide block is arranged on the focusing seat, and is in tight fit with a linear guide rail fixed on an outer wall of the focusing lens barrel and slides along the linear guide rail. Furthermore, a positioning block is arranged between the external sleeve and the focusing lens barrel; the positioning block is respectively in tight fit with an inner wall of the external sleeve and the outer wall of the focusing lens barrel, and can slide respectively relative to the inner wall of the external sleeve and the focusing lens barrel. The optical system focusing mechanism can prevent the focusing lens barrel and an optical shaft of the optical system from offsetting when a locking bolt is loosened or tightened in the process of focusing, thereby effectively eliminating aberration and greatly improving the imaging quality; meanwhile, the focusing process can be more level and smooth. The optical system focusing mechanism provided by the invention can be widely applied to various optical, measurement and image pickup systems.
Description
Technical field
The present invention relates to a kind of structure improved focus adjusting mechanism that has that is applied in optical system.
Background technology
At present, in the optical systems such as astronomical telescope, the focus adjusting mechanism by module compositions such as focusing drawtube and focusing mounts can be set all generally,, to regulate the imaging point in optical system, obtain good imaging effect.Consulting Fig. 1 is a kind of focus adjusting mechanism of commonly seeing, it is mainly located focusing mount and focusing drawtube by self-tightening screw nail, but this structure tends to cause optical axis run-off the straight or the beat of focusing drawtube in the locking process, and with telescopical optical axis deviation, there is obvious aberration while making imaging, have a strong impact on image quality.
Summary of the invention
The object of the present invention is to provide a kind of structure improved focusing mechanism of optical system that has, it can realize in the focusing process that the optical axis of focusing drawtube remains consistent with optical system, obtains good image quality, thereby has overcome deficiency of the prior art.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of focusing mechanism of optical system, comprise focusing drawtube and focusing mount, sheathed outer sleeve on described focusing drawtube, described focusing mount is fixed on outer sleeve, and the coaxial setting of described outer sleeve, focusing drawtube and optical system, it is characterized in that: described focusing mount is provided with slide block, and described slide block can closely cooperate with the linear guides that is fixed on the focusing drawtube outer wall, and along described linear guides, slides.
Further say, also be provided with locating piece between described outer sleeve and focusing drawtube, described locating piece closely cooperates with outer sleeve inwall and focusing drawtube outer wall respectively, and can be respectively and outer sleeve inwall and focusing drawtube relative sliding.
Described locating piece is arcuate structure.
Described locating piece is provided with bearing.
Described locating piece two ends arrange respectively rolling bearing.
Described locating piece and linear guides are arranged at respectively the relative both sides of focusing drawtube.
Described focusing mount is connected with focusing drawtube through set screw, and focusing mount and outer sleeve are vertically passed in described set screw autofocusing seat top, and are provided with briquetting between described set screw lower end and linear guides.
Also be provided with lock-screw between described outer sleeve and focusing drawtube, described lock-screw one end passes outer sleeve and locating piece successively, and with the focusing drawtube outer wall, pushes against.
Compared with prior art, advantage of the present invention is at least: by close-fitting linear guides and slide block structure are set between focusing drawtube and focusing mount, making in the focusing process can not cause the optical axis of focusing drawtube and optical system to be offset because unclamping or tightening lock-screw, can effectively eliminate aberration, significantly promote image quality; Further,, by between focusing drawtube and outer sleeve, locating piece being set, particularly have the locating piece of Bearning mechanism, also can make the focusing process more smoothly smooth and easy.The present invention can be widely used in multiple optics, measurement, camera system.
Description of drawings
Fig. 1 is the stereographic map of a preferred embodiment of the present invention;
Fig. 2 is the left view of a preferred embodiment of the present invention;
Fig. 3 is the front view of a preferred embodiment of the present invention;
Fig. 4 is one of cross-sectional view of a preferred embodiment of the present invention;
Fig. 5 be a preferred embodiment of the present invention cross-sectional view two;
In figure, each assembly and Reference numeral thereof are respectively: focusing mount 1, hand wheel pole 101, focusing handwheel 102, trimming hand wheel 103, focusing drawtube 2, outer sleeve 3, telescope tube 4, locating piece 5, bearing 6, set screw 7, lock-screw 8, briquetting 9, linear guides 10, slide block 11.
Embodiment
Below in conjunction with accompanying drawing and a preferred embodiment, technical scheme of the present invention is further described.
Consult Fig. 1-Fig. 5, the present embodiment relates to a kind of focus adjusting mechanism that is applied in telescopic system, it comprises focusing drawtube 2 and focusing mount 1, sheathed outer sleeve 3 on this focusing drawtube 2, this focusing mount 1 is fixed on outer sleeve 3, and this outer sleeve, focusing drawtube and the coaxial setting of telescope tube 4, and this focusing mount 1 is provided with slide block 11, this slide block 11 closely cooperates with the linear guides 10 that is fixed on focusing drawtube 2 outer walls, and can slide along this linear guides 10.The slide block that takes this to cooperatively interact and linear guides, can make in the focusing process and can not cause the optical axis of focusing drawtube and optical system to be offset because unclamping or tightening lock-screw, effectively eliminates aberration, significantly promotes image quality
Further, also be provided with arc locating piece 5 between this outer sleeve and focusing drawtube, this locating piece 5 closely cooperates with outer sleeve 3 inwalls and focusing drawtube 1 outer wall respectively, and can be respectively and outer sleeve 3 inwalls and focusing drawtube 2 relative slidings.Especially preferred, be provided with rolling bearing 6 at aforementioned locating piece two ends.Nationality can make the focusing process more smoothly smooth and easy by this locating piece.
As preferred version, this locating piece 5 and linear guides 10 are arranged at respectively the relative both sides of focusing drawtube 2.
Further, this focusing mount 1 is connected connection with focusing drawtube through set screw 7, and focusing mount and outer sleeve are vertically passed in this set screw autofocusing seat top, and are provided with briquetting 9 between this set screw lower end and linear guides.Also be provided with lock-screw 8 between this outer sleeve and focusing drawtube, this lock-screw one end passes outer sleeve and locating piece successively, and with the focusing drawtube outer wall, pushes against.
Aforementioned focusing mount 1 can be by module compositions such as hand wheel pole 101, focusing handwheel 102 and trimming hand wheels 103.
The present invention can also have other numerous embodiments; but in the situation that does not deviate from invention spirit and essence thereof; those skilled in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (1)
1. a focusing mechanism of optical system, comprise focusing drawtube and focusing mount, sheathed outer sleeve on described focusing drawtube, and described focusing mount is fixed on outer sleeve, and the coaxial setting of described outer sleeve, focusing drawtube and optical system, it is characterized in that:
Described focusing mount is provided with slide block, and described slide block can closely cooperate with the linear guides that is fixed on the focusing drawtube outer wall, and along described linear guides, slides;
Simultaneously, also be provided with the locating piece with arcuate structure between described outer sleeve and focusing drawtube, described locating piece closely cooperates with outer sleeve inwall and focusing drawtube outer wall respectively, and can be respectively and outer sleeve inwall and focusing drawtube relative sliding, and described locating piece two ends arrange respectively rolling bearing;
Described locating piece and linear guides are arranged at respectively the relative both sides of focusing drawtube;
Postscript, described focusing mount is connected with focusing drawtube through set screw, and focusing mount and outer sleeve are vertically passed in described set screw autofocusing seat top, and are provided with briquetting between described set screw lower end and linear guides;
In addition, also be provided with lock-screw between described outer sleeve and focusing drawtube, described lock-screw one end passes outer sleeve and locating piece successively, and with the focusing drawtube outer wall, pushes against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110193673XA CN102269856B (en) | 2011-07-12 | 2011-07-12 | Optical system focusing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110193673XA CN102269856B (en) | 2011-07-12 | 2011-07-12 | Optical system focusing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102269856A CN102269856A (en) | 2011-12-07 |
| CN102269856B true CN102269856B (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110193673XA Active CN102269856B (en) | 2011-07-12 | 2011-07-12 | Optical system focusing mechanism |
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| CN (1) | CN102269856B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646847B (en) * | 2017-01-18 | 2023-08-18 | 南通斯密特森光电科技有限公司 | Astronomical telescope with high-precision novel optical system |
| CN108577792A (en) * | 2018-05-22 | 2018-09-28 | 浙江优亿医疗器械有限公司 | A kind of focusing system of endoscope |
Citations (8)
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|---|---|---|---|---|
| CN2775700Y (en) * | 2005-02-03 | 2006-04-26 | 深圳市金凯进光电仪器有限公司 | Improvement of aiming lens focusing hand wheel structure |
| CN201281780Y (en) * | 2007-12-21 | 2009-07-29 | 昆明裕众光学有限公司 | Focusing base for telescope |
| JP2009237103A (en) * | 2008-03-26 | 2009-10-15 | Nikon Vision Co Ltd | Moving mechanism, and optical device |
| CN201387506Y (en) * | 2009-01-23 | 2010-01-20 | 陈俊豪 | Optical focusing mechanism |
| CN201751868U (en) * | 2010-05-21 | 2011-02-23 | 杨德良 | Knob device |
| CN201765376U (en) * | 2010-09-03 | 2011-03-16 | 赵海平 | Shaft sleeve type microscope focusing apparatus |
| CN201892784U (en) * | 2010-12-14 | 2011-07-06 | 昆明裕众光学有限公司 | Locking device of telescope focusing mount |
| CN202182964U (en) * | 2011-07-12 | 2012-04-04 | 苏州信达光电科技有限公司 | Focusing mechanism of optical system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM269459U (en) * | 2004-10-11 | 2005-07-01 | Jiun-Hau Chen | Focusing device and telescoping tube module thereof |
| CN201662646U (en) * | 2010-03-31 | 2010-12-01 | 洪政男 | Manual focusing zoom lens |
-
2011
- 2011-07-12 CN CN201110193673XA patent/CN102269856B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775700Y (en) * | 2005-02-03 | 2006-04-26 | 深圳市金凯进光电仪器有限公司 | Improvement of aiming lens focusing hand wheel structure |
| CN201281780Y (en) * | 2007-12-21 | 2009-07-29 | 昆明裕众光学有限公司 | Focusing base for telescope |
| JP2009237103A (en) * | 2008-03-26 | 2009-10-15 | Nikon Vision Co Ltd | Moving mechanism, and optical device |
| CN201387506Y (en) * | 2009-01-23 | 2010-01-20 | 陈俊豪 | Optical focusing mechanism |
| CN201751868U (en) * | 2010-05-21 | 2011-02-23 | 杨德良 | Knob device |
| CN201765376U (en) * | 2010-09-03 | 2011-03-16 | 赵海平 | Shaft sleeve type microscope focusing apparatus |
| CN201892784U (en) * | 2010-12-14 | 2011-07-06 | 昆明裕众光学有限公司 | Locking device of telescope focusing mount |
| CN202182964U (en) * | 2011-07-12 | 2012-04-04 | 苏州信达光电科技有限公司 | Focusing mechanism of optical system |
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| Publication number | Publication date |
|---|---|
| CN102269856A (en) | 2011-12-07 |
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Effective date of registration: 20151020 Address after: Rugao City, Jiangsu province Nantong City Road 226000 No. 399 Zhongshan Gao City Road No. 399 Patentee after: NANTONG SIMITESEN OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: 215000 Yushan Road, Jiangsu, China, No. 65, No. Patentee before: Suzhou Xinda Photoelectric Science & Technology Co., Ltd. |