CN103713446A - External focusing device of self-locking camera - Google Patents
External focusing device of self-locking camera Download PDFInfo
- Publication number
- CN103713446A CN103713446A CN201310754170.4A CN201310754170A CN103713446A CN 103713446 A CN103713446 A CN 103713446A CN 201310754170 A CN201310754170 A CN 201310754170A CN 103713446 A CN103713446 A CN 103713446A
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- China
- Prior art keywords
- focusing device
- worm
- external focusing
- self
- worm screw
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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
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to cameras, and provides an external focusing device of a self-locking camera. The external focusing device is simple in structure, low in manufacturing cost, capable of achieving precision positioning of external focusing and improving the shooting imaging quality. The external focusing device comprises a transparent cover shell, a transparent cover plate, an infrared lamp plate and a camera lens, and further comprises a transmission mechanism, a worm and an adjusting mechanism. The transmission mechanism is used for adjusting the axial relative distance of a lens body on the camera lens, the worm is meshed with a worm gear disk of the transmission mechanism, and the adjusting mechanism is connected with one end of the worm and is used for controlling the worm to rotate.
Description
Technical field
The present invention relates to video camera, particularly a kind of self-locking video camera external focusing device.
Background technology
Traditional video camera is when shooting, and the relative distance of object and video camera is that object distance changes.In order to make the object of different object distances can access image clearly by camera lens on Using Image Plate, must carry out focusing process.Current focusing process adopts following two kinds of modes to carry out conventionally: one, change the focusing mode of image distance, keep the focal length of camera lens constant, by adjusting the axial location of whole arrangement of mirrors head, thereby change the distance between camera lens and Using Image Plate, change image distance and obtain image clearly.This focusing mode need move whole arrangement of mirrors head, because the eyeglass of whole arrangement of mirrors head is many, volume is large, so focus adjusting mechanism is complicated.Two, the outer focusing mode of change focal length, by the axial location of certain arrangement of mirrors sheet in moving lens, thereby changes the relative distance between eyeglass in camera lens, changes lens focus and obtains image clearly.Though the whole arrangement of mirrors head of this outer focusing mode can keep motionless, focus adjusting mechanism is simpler, and its structural instability cannot ensure that the image quality of camera lens is in optimum condition.With reference to figure 1, gear shaft that existing video camera external focusing device comprises gear train 1 ' for adjusting on show axial relative distance of camera lens, be meshed with the toothed disc 11 ', 12 ' of gear train 1 ' 2 ', 3 ' be connected with gear shaft 2 ', 3 ' and control gear axle 2 ', 3 ' rotates for realizing the adjusting mechanism of outer focusing.The external focusing device of this kind of structure is when adjusting on show axial relative distance of camera lens, the toothed disc 11 ' of gear train 1 ', 12 ' with the 2 ', 3 ' intermeshing connection of gear shaft, while making it adjust rotation, between toothed disc and gear shaft, there is the problem of a running clearance, make it cannot precise positioning, cause larger position deviation, make the relative distance of eyeglass in camera lens cannot reach optimal imaging position, make final shooting image quality not high, though prior art is the outer focusing structure of some other mode also, but complex structure, cost is high.
Summary of the invention
Therefore, for above-mentioned problem, the present invention propose a kind of simple in structure, cost is low, realize the precise positioning of outer focusing, improve the self-locking video camera external focusing device of shooting image quality.
For realizing above-mentioned technical matters, the solution that the present invention takes is: a kind of self-locking video camera external focusing device, comprises the adjusting mechanism that gear train for adjusting on show axial relative distance of camera lens, the worm screw being meshed with the worm gear dish of gear train are connected with worm screw one end and rotate for controlling worm screw.
Further, described adjusting mechanism comprises two rotation slots that are connected with worm screw one end respectively.
Further, described rotation slot is and establishes reeded cylinder.
By adopting aforementioned techniques scheme, the invention has the beneficial effects as follows: by adopting worm gear to coordinate with the rotation gapless of worm screw, by adjusting mechanism, controlling worm screw rotates, by worm screw, drive worm gear to rotate again and adjust on show axial relative distance of camera lens, make video camera realize the precise positioning of outer focusing, make the relative distance of eyeglass in camera lens reach optimal imaging position, greatly improved shooting image quality, the present invention is simultaneously simple in structure, cost is low, the focusing convenience of video camera, Stability Analysis of Structures, can wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing video camera external focusing device;
Fig. 2 is the structural representation of the embodiment of the present invention.
Embodiment
Now the present invention is further described with specific embodiment by reference to the accompanying drawings.
With reference to figure 2, the disclosed a kind of self-locking video camera external focusing device of the embodiment of the present invention, comprise the adjusting mechanism 4 that gear train 1 for adjusting on show axial relative distance of camera lens, the worm screw 2,3 being meshed with the worm gear dish 11,12 of gear train 1 are connected with worm screw 2,3 one end and rotate for controlling worm screw 2,3, described adjusting mechanism 4 comprises two rotation slots 41,42 that are connected with worm screw 2,3 one end respectively, and described rotation slot 41,42 is the cylinder that is provided with interior hexagonal groove.
The present invention is by adopting worm gear to coordinate with the rotation gapless of worm screw, by adjusting mechanism, controlling worm screw rotates, by worm screw, drive worm gear to rotate again and adjust on show axial relative distance of camera lens, make video camera realize the precise positioning of outer focusing, make the relative distance of eyeglass in camera lens reach optimal imaging position, greatly improved shooting image quality, the present invention is simultaneously simple in structure, and cost is low, the focusing convenience of video camera, Stability Analysis of Structures, can wide popularization and application.
Although specifically show and introduced the present invention in conjunction with preferred embodiment, within not departing from the category of the present invention that appended claims limits, can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (3)
1. a self-locking video camera external focusing device, is characterized in that: the adjusting mechanism (4) that comprises gear train (1) for adjusting on show axial relative distance of camera lens, is connected and rotates for controlling worm screw (2), (3) with the worm gear dish (11) of gear train (1), worm screw (2), (3) that (12) are meshed with worm screw (2), (3) one end.
2. self-locking video camera external focusing device according to claim 1, is characterized in that: described adjusting mechanism (4) comprises two rotation slot (41), (42) that are connected with worm screw (2), (3) one end respectively.
3. self-locking video camera external focusing device according to claim 2, is characterized in that: described rotation slot (41), (42) are establishes reeded cylinder.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610362468.4A CN106054342B (en) | 2013-12-31 | 2013-12-31 | Self-locking video camera external focusing device with worm gear disk and worm screw |
| CN201310754170.4A CN103713446B (en) | 2013-12-31 | 2013-12-31 | External focusing device of self-locking camera |
| CN201610362259.XA CN105842954A (en) | 2013-12-31 | 2013-12-31 | Self-locking camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754170.4A CN103713446B (en) | 2013-12-31 | 2013-12-31 | External focusing device of self-locking camera |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610362259.XA Division CN105842954A (en) | 2013-12-31 | 2013-12-31 | Self-locking camera |
| CN201610362468.4A Division CN106054342B (en) | 2013-12-31 | 2013-12-31 | Self-locking video camera external focusing device with worm gear disk and worm screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103713446A true CN103713446A (en) | 2014-04-09 |
| CN103713446B CN103713446B (en) | 2017-02-01 |
Family
ID=50406533
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610362468.4A Expired - Fee Related CN106054342B (en) | 2013-12-31 | 2013-12-31 | Self-locking video camera external focusing device with worm gear disk and worm screw |
| CN201610362259.XA Pending CN105842954A (en) | 2013-12-31 | 2013-12-31 | Self-locking camera |
| CN201310754170.4A Expired - Fee Related CN103713446B (en) | 2013-12-31 | 2013-12-31 | External focusing device of self-locking camera |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610362468.4A Expired - Fee Related CN106054342B (en) | 2013-12-31 | 2013-12-31 | Self-locking video camera external focusing device with worm gear disk and worm screw |
| CN201610362259.XA Pending CN105842954A (en) | 2013-12-31 | 2013-12-31 | Self-locking camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN106054342B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673847A (en) * | 2004-03-24 | 2005-09-28 | 富士能株式会社 | Rotational driving apparatus and camera using the rotational driving apparatus |
| CN2760610Y (en) * | 2004-08-19 | 2006-02-22 | 葛大庆 | Minisize ultra-thin automatic and electric focus device for shooting equipment |
| CN101688587A (en) * | 2007-07-04 | 2010-03-31 | 松下电器产业株式会社 | Camera device and drive mechanism |
| CN101907817A (en) * | 2009-06-03 | 2010-12-08 | 索尼公司 | Interchangeable lenses and camera head |
| CN201945728U (en) * | 2010-12-20 | 2011-08-24 | 深圳市唯真电机有限公司 | Lens driving structure of digital camera |
| CN201945727U (en) * | 2010-12-20 | 2011-08-24 | 深圳市唯真电机有限公司 | L-shaped driving structure of digital camera lens |
| CN102495458A (en) * | 2011-12-08 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | Zooming transmission system with self-locking performance for zoom lens |
| CN203705787U (en) * | 2013-12-31 | 2014-07-09 | 泉州市东南光电有限公司 | Self-locking camera external focusing apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2624244Y (en) * | 2003-04-29 | 2004-07-07 | 广东威创日新电子有限公司 | Six-axised adjusting frame |
| CN1595281A (en) * | 2004-06-22 | 2005-03-16 | 李立鹏 | Shock-absorbing balancing instrument of hand-held camera |
| CN2784977Y (en) * | 2004-12-03 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Automatic focusing device |
| KR100522455B1 (en) * | 2005-02-05 | 2005-10-18 | 니오비전(주) | Optical apparatus with automatic zooming focus |
| CN201438253U (en) * | 2009-06-02 | 2010-04-14 | 深圳市宏天顺电子有限公司 | Manual focus camera and camera head thereof |
| CN201663644U (en) * | 2010-02-08 | 2010-12-01 | 深圳市昱鑫共创科技发展有限公司 | Camera with fine-tuning structure |
| CN201974569U (en) * | 2011-03-10 | 2011-09-14 | 厦门力鼎光电技术有限公司 | Adjustable synchronously-focusing lens |
-
2013
- 2013-12-31 CN CN201610362468.4A patent/CN106054342B/en not_active Expired - Fee Related
- 2013-12-31 CN CN201610362259.XA patent/CN105842954A/en active Pending
- 2013-12-31 CN CN201310754170.4A patent/CN103713446B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673847A (en) * | 2004-03-24 | 2005-09-28 | 富士能株式会社 | Rotational driving apparatus and camera using the rotational driving apparatus |
| CN2760610Y (en) * | 2004-08-19 | 2006-02-22 | 葛大庆 | Minisize ultra-thin automatic and electric focus device for shooting equipment |
| CN101688587A (en) * | 2007-07-04 | 2010-03-31 | 松下电器产业株式会社 | Camera device and drive mechanism |
| CN101907817A (en) * | 2009-06-03 | 2010-12-08 | 索尼公司 | Interchangeable lenses and camera head |
| CN201945728U (en) * | 2010-12-20 | 2011-08-24 | 深圳市唯真电机有限公司 | Lens driving structure of digital camera |
| CN201945727U (en) * | 2010-12-20 | 2011-08-24 | 深圳市唯真电机有限公司 | L-shaped driving structure of digital camera lens |
| CN102495458A (en) * | 2011-12-08 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | Zooming transmission system with self-locking performance for zoom lens |
| CN203705787U (en) * | 2013-12-31 | 2014-07-09 | 泉州市东南光电有限公司 | Self-locking camera external focusing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103713446B (en) | 2017-02-01 |
| CN105842954A (en) | 2016-08-10 |
| CN106054342A (en) | 2016-10-26 |
| CN106054342B (en) | 2018-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 362000 Zhi Tai Road, Quanzhou economic and Technological Development Zone, Fujian, 7-12A Applicant after: Quanzhou Southeast Photoelectric Co., Ltd. Address before: 362000 Zhi Tai Road, Quanzhou economic and Technological Development Zone, Fujian, 7-12A Applicant before: Quanzhou SouthEast Photoelectric Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: QUANZHOU SOUTHEAST PHOTOELECTRIC CO., LTD. TO: QUANZHOU SOUTHEAST PHOTOELECTRIC CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |