CN102495457B - Core adjustment structure and method for lens - Google Patents
Core adjustment structure and method for lens Download PDFInfo
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- CN102495457B CN102495457B CN201110401334.6A CN201110401334A CN102495457B CN 102495457 B CN102495457 B CN 102495457B CN 201110401334 A CN201110401334 A CN 201110401334A CN 102495457 B CN102495457 B CN 102495457B
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- 238000000034 method Methods 0.000 title claims description 12
- 239000003292 glue Substances 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 7
- 230000004304 visual acuity Effects 0.000 description 5
- 230000008034 disappearance Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The invention discloses a core adjustment structure for a lens. The core adjustment structure for the lens comprises a main lens barrel and at least one lens group shafted in the main lens barrel, wherein the lens group comprises a lens barrel and at least one lens which is to be subjected to core adjustment and shafted in the lens barrel; three screw holes forming an angle of 120 degrees are uniformly formed in the lens barrel along the circumferential direction; core adjustment screws are arranged in the screw holes; and the core adjustment screws are pressed against the outer rim of the lens which is to be subjected to core adjustment. Without a computer and analysis software, the core adjustment structure has the advantages of improving the core adjustment work efficiency and reducing the core adjustment cost; and the lens is not required to be glued.
Description
(1) technical field:
The present invention relates to a kind of tune cored structure of camera lens and utilize the core regulating method of this tune cored structure.
(2) background technology:
In recent years, be accompanied by the development of monitoring trade and the maturing of aspheric surface processing technology, CCTV camera lens also more and more receives each camera lens production firm and engineering contractor's concern.CCTV camera lens, as the important component part of supervisory system, requires more professional, stricter to the image quality of its camera lens.
Because optical lens build-up tolerance is all more responsive, between general eyeglass, error trickle between eyeglass and lens barrel all can produce very large bias, causes resolving power to decline.So how to reduce as much as possible rigging error, promote resolving power will become the problem that must solve in optical lens production run.And adjust core mode can solve well the core shift problem between eyeglass, complete optics to core.
General camera lens all by the responsive lens design of core to be adjusted in outermost, then by adjusting core pawl to adjust lens position, then adjust after core whether OK of resolving power by CCD imaging computer analysis software to judge, after completing the operation of tune core, also need to put glue, solidify machine solidified glue with point gum machine, so that adjust core eyeglass finally to locate.Although can complete and adjust core operation by this kind of mode, in fact also have following disappearance:
One, this adjusts cored structure only outermost eyeglass to be adjusted to core, cannot complete the eyeglass of lens barrel inner side is implemented to adjust core operation.CCTV zoom lens determines that its optical system is comparatively complicated because of characteristics such as its large aperture, wide field, wide focal lengths, and eccentric responsive eyeglass may not be just in outermost, so adjust core operation to have the disappearance that cannot be applicable to CCTV camera lens.
Two, due to the factor of pressure differential, in the time that glue injects tune core eyeglass and lens barrel gap, glue very easily flows and infiltrates in the effective diameter of this core eyeglass to be adjusted, cause affecting the optical property of this camera lens, now not only to rearrange lens barrel and core eyeglass to be adjusted, must re-start and adjust core operation, so there is the not high disappearance of the core operating efficiency of tune.
Three, this kind adjusted core mode to use and adjusted core pawl, CCD imaging collector, computing machine and corresponding analysis software, point gum machine, glue curing machine etc., equipment needed thereby is more and expensive, especially analysis software especially specially research and development, cost is higher, thus have be difficult to improve implement disappearance.
(3) summary of the invention:
In order to overcome the deficiencies in the prior art, the object of the invention is to:
1. realize the tune core operation to non-outside eyeglass in optical system.
2. improve the optical property of CCTV camera lens.
3. reduce and adjust the required equipment of cored structure, reduce production costs, improve operability and the realizability of optical lens tune core.
The present invention realizes by following technical scheme:
A kind of camera lens is adjusted cored structure, comprise body tube and be located at least one group of lens combination in this body tube, this lens combination comprises a lens barrel, and at least one core eyeglass to be adjusted being located in this lens barrel, described lens barrel is equally distributed three threaded holes of 120 degree along being circumferentially with, in described threaded hole, be equipped with and adjust core screw, described tune core screw top terminates in the outer rim of described core eyeglass to be adjusted.
By said structure, after all camera lens composition components have been assembled, camera lens is contained in cold light source projector, core screw is adjusted in the rear adjusting of having focused, and judges to adjust core operation whether to complete by projection solution picture, after completing, is adjusting core screw external point glue fixing.Tune cored structure of the present invention is without computer and analysis software, and without a glue on eyeglass, have to improve and adjust core operating efficiency and reduce advantages such as adjusting core cost.
As the improvement of technique scheme, further technical scheme of the present invention is as follows:
Further, above-mentioned lens combination further comprises a group mirror group and two groups of mirror groups, described a group mirror group outside is provided with a group focusing drum being located on described body tube, described two groups of mirror groups outside is provided with two groups of focusing drums that are located on described body tube, described body tube end is provided with the standard interface for connecting video camera, and described standard interface is fixed on body tube by connecting cylinder.
Further, these two groups of mirror groups further comprise: two groups of lens barrels, described two groups of lens barrel inner shafts are to being equipped with successively the first eyeglass, the first spacer ring, the second eyeglass, the second spacer ring, the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass, described two groups of lens barrel two ends are respectively equipped with the first lock pressure ring and the second lock pressure ring, and the second described eyeglass is core eyeglass to be adjusted.
Further, above-mentioned lens barrel is equally distributed three the PIN pin of 120 degree along being circumferentially with, and described threaded hole is located in described PIN pin.
A kind of camera lens core regulating method, the method has been used according to a kind of camera lens described in claim 1-3 any one and has adjusted cored structure, comprises the steps:
A, camera lens is installed in projector, focal length is adjusted to the longest Jiao Chu, observes solution as situation, sees that motion blur phenomenon appears in the lines of projection;
After b, observation projection phenomenon, make the direction of smear consistent with the described tune core screw orientation in one of them PIN pin through hole of described two groups of lens barrels by rotation standard interface, screw in slowly more described tune core screw, the direction that described tune core screw screws in and the opposite direction of smear, until be adjusted to this direction without motion blur phenomenon;
C, observe other motion blur phenomenon above direction again, make the direction of smear consistent with the described tune core screw orientation in one of them PIN pin through hole of described two groups of lens barrels by rotating described standard interface, screw in slowly more described tune core screw, until the party's smear is upwards adjusted to nothing, observe again the motion blur phenomenon in other direction, conventionally regulate both direction just can solve the phenomenon of picture smear;
D, the work of tune core are taken off camera lens after completing from projector, the described tune core screw point glue in three PIN pin is fixed.
Camera lens of the present invention and tune cored structure thereof, it has higher resolving power, and by adjusting core operation can greatly improve product yield, because it is adjusted, core process is simple, equipment needed thereby is less, greatly reduces production cost.
(4) accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of two groups of mirror groups of the present invention;
Fig. 3 is the structural representation of connecting cylinder of the present invention;
Fig. 4 is the structural representation of two groups of focusing drums of the present invention.
(5) embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail, but not as a limitation of the invention:
Referring to accompanying drawing, tune cored structure and the core regulating method thereof of the present embodiment are as follows:
First pack three PIN pin of described two groups of mirror groups 3 into two groups of straight troughs in described body tube 1, described two groups of focusing drums 5 pack in two groups of straight troughs in described body tube 1, and by three PIN pin of described two groups of mirror groups 3, described body tube 1, after overlapping, three curved grooves of described two groups of focusing drums 5 regulate described two groups of focusing drums 5 can make described two groups of mirror groups 3 move forward and backward in two groups of straight troughs of described body tube 1, three PIN pin that reinstall described a group mirror group 2 pack a group straight trough of described body tube 1 into, described a group focusing drum 4 packs in a group straight trough in described body tube 1, and by three PIN pin of described a group mirror group 2, described body tube 1, after overlapping, three curved grooves of described a group focusing drum 4 regulate described a group focusing drum 4 can make described a group mirror group 2 move forward and backward in a group straight trough of described body tube 1.Described a group mirror group 2 and two groups of mirror groups 3 have been assembled described delustring rosette 10 have been mounted on described body tube 1, described standard interface 6 is mounted on described body tube 1, again described connecting cylinder 7 is mounted on body tube 1, the above part is installed and can be adjusted core work.
Described in the present embodiment, adjusting core screw 24 is can be in order to adjust the offset between described a group mirror group 2 and described two groups of mirror groups 3, described tune core screw 24 is screwed in described two groups of lens barrels 13, after adjusting core work, described tune core screw 24 is carried out to a glue with described two groups of lens barrels 13, after some glue, can guarantee like this stability of camera lens, keep solution as constant.Described invention CCTV camera lens is installed to above projector, and burnt after adjusting, focal length is adjusted to the longest Jiao Chu (being adjusted to the longest burnt convenient core of adjusting) and observes solution as situation, sees that motion blur phenomenon appears in the lines of projection.
Observe after projection phenomenon, make the direction of smear consistent with described tune core screw 24 directions in described two groups of lens barrels, 13 one of them PIN pin through hole by rotating described standard interface 6, screw in slowly more described tune core screw 24 (making direction that described tune core screw 24 screws in and the opposite direction of smear) until direction motion blur phenomenon is upwards adjusted to without motion blur phenomenon, in the time adjusting core, left hand is rotated screwdriver in order to adjust core, the right hand is used for adjusting the microspur above projector, eyes are observed projected picture (will accomplish the observation of Tiao Xin limit, limit, at rotary screw must slowly screw in screw for smear is slight when scared for separating picture, can adjust very accurately like this core to lines without motion blur phenomenon, if cross conference in tune core strength, the direction of smear is offset to other direction), observe again other motion blur phenomenon above direction, make the direction of smear consistent with described tune core screw 24 directions in described two groups of lens barrels, 13 one of them PIN pin through hole by rotating described standard interface 6 again, screw in slowly more described tune core screw 24 until direction smear is upwards adjusted to nothing.Observe again the motion blur phenomenon in other direction.Conventionally regulate both direction just can solve the phenomenon (as motion blur phenomenon also appears in remaining direction, adjusting core according to same method) of picture smear.
After adjusting core work to complete, described camera lens is taken off from projector, by 24 glue of described tune core screw in three PIN pin of described two groups of lens barrels 13, can fix so described tune core screw 24 and can not change, make to adjust the solution after core to look like to remain unchanged, more stable.After adjusting core, aperture is installed, then after described aperture cover 9 is installed.It is more than the tune core procedure declaration of CCTV entirety camera lens.
In sum, this adjusts core structure designs only to adjust core can reach the object of adjusting core by three in described two groups of lens barrels 13 equally distributed described tune core screws 24.Use described tune core screw 24 to reach the tune core effect to lens construction of the present invention to the skew of described eyeglass 16, resolving power, yield, stability, running time are greatly improved.This mode adjusts cored structure not need the part of removing stage makeup and costume, and adjusts after core.Only need normal screws can be in order to adjusting core, can not produce after the scrapping of material, some glue make it more to stablize, mode of operation is easily understood, and only needs technical personnel familiar with the art to operate very fast.
Above-described embodiment is preferred embodiments of the present invention; but embodiments of the present invention are not limited to this; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (3)
1. a camera lens is adjusted cored structure, comprise body tube and be located in a group mirror group and the two groups of mirror groups in this body tube, described a group mirror group outside is provided with a group focusing drum being located on described body tube, described two groups of mirror groups outside is provided with two groups of focusing drums that are located on described body tube, it is characterized in that: these two groups of mirror groups comprise two groups of lens barrels, and at least one core eyeglass to be adjusted being located in these two groups of lens barrels, described two groups of lens barrels are equally distributed three threaded holes of 120 degree along being circumferentially with, in described threaded hole, be equipped with and adjust core screw, described tune core screw top terminates in the outer rim of described core eyeglass to be adjusted, described body tube end is provided with the standard interface for connecting video camera, described standard interface is fixed on body tube by connecting cylinder, described two groups of lens barrel inner shafts are to being equipped with successively the first eyeglass, the first spacer ring, the second eyeglass, the second spacer ring, the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass, described two groups of lens barrel two ends are respectively equipped with the first lock pressure ring and the second lock pressure ring, and the second described eyeglass is core eyeglass to be adjusted.
2. a kind of camera lens according to claim 1 is adjusted cored structure, it is characterized in that: two groups of described lens barrels are equally distributed three the PIN pin of 120 degree along being circumferentially with, and described threaded hole is located in described PIN pin.
3. a camera lens core regulating method, the method has been used a kind of camera lens according to claim 2 to adjust cored structure, it is characterized in that, comprises the steps:
A, camera lens is installed in projector, focal length is adjusted to the longest Jiao Chu, observes solution as situation, sees that motion blur phenomenon appears in the lines of projection;
After b, observation motion blur phenomenon, make the direction of smear consistent with the described tune core screw orientation in one of them PIN pin through hole of described two groups of lens barrels by rotation standard interface, screw in slowly more described tune core screw, the direction that described tune core screw screws in and the opposite direction of smear, until be adjusted to this direction without motion blur phenomenon;
C, observe other motion blur phenomenon above direction again, make the direction of smear consistent with the described tune core screw orientation in one of them PIN pin through hole of described two groups of lens barrels by rotating described standard interface, screw in slowly more described tune core screw, until the party's smear is upwards adjusted to nothing, then observe the motion blur phenomenon in other direction;
D, the work of tune core are taken off camera lens after completing from projector, the described tune core screw point glue in three PIN pin is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110401334.6A CN102495457B (en) | 2011-12-06 | 2011-12-06 | Core adjustment structure and method for lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110401334.6A CN102495457B (en) | 2011-12-06 | 2011-12-06 | Core adjustment structure and method for lens |
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| Publication Number | Publication Date |
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| CN102495457A CN102495457A (en) | 2012-06-13 |
| CN102495457B true CN102495457B (en) | 2014-06-18 |
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| CN201110401334.6A Expired - Fee Related CN102495457B (en) | 2011-12-06 | 2011-12-06 | Core adjustment structure and method for lens |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798956A (en) * | 2012-08-08 | 2012-11-28 | 中国科学院上海光学精密机械研究所 | Picture frame structure of heavy-calibre combined lens |
| CN105721859B (en) * | 2014-12-03 | 2018-05-29 | 宁波舜宇光电信息有限公司 | The aligning equipment and its application process of a kind of image module |
| WO2019052180A1 (en) | 2017-09-18 | 2019-03-21 | 浙江舜宇光学有限公司 | Camera lens group |
| CN107765466A (en) * | 2017-11-20 | 2018-03-06 | 南京信息职业技术学院 | A kind of big visual field LCD display pixel somascope |
| CN109557631B (en) * | 2018-12-28 | 2024-01-30 | 江西天孚科技有限公司 | Preheating core adjusting equipment |
| CN110542966A (en) * | 2019-06-23 | 2019-12-06 | 江苏同胜光电科技有限公司 | Lens aligning device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927086Y (en) * | 2006-07-11 | 2007-07-25 | 普立尔科技股份有限公司 | Lens and core-adjusting structure |
| CN101846786A (en) * | 2009-03-27 | 2010-09-29 | 杰西迪光学有限公司 | Aligning device of zoom lens tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317607A (en) * | 1989-06-15 | 1991-01-25 | Mitsubishi Electric Corp | Method for adjusting optical axis of infrared-ray optical system |
| JPH11281865A (en) * | 1998-01-29 | 1999-10-15 | Nikon Corp | Optical device and its manufacture, and semiconductor aligner |
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2011
- 2011-12-06 CN CN201110401334.6A patent/CN102495457B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927086Y (en) * | 2006-07-11 | 2007-07-25 | 普立尔科技股份有限公司 | Lens and core-adjusting structure |
| CN101846786A (en) * | 2009-03-27 | 2010-09-29 | 杰西迪光学有限公司 | Aligning device of zoom lens tube |
Non-Patent Citations (2)
| Title |
|---|
| JP平3-17607A 1991.01.25 |
| JP特开平11-281865A 1999.10.15 |
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| CN102495457A (en) | 2012-06-13 |
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Effective date of registration: 20170522 Address after: 334100 No. 197, West Avenue, Shangrao, Jiangxi Patentee after: JIANGXI PHOENIX OPTICAL TECHNOLOGY CO.,LTD. Address before: 528400 Zhongshan Zhongshan torch hi tech Industrial Development Zone, Guangdong new concentration zone Patentee before: PHENIX OPTICAL (GUANGDONG) Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20140618 |