CN104965292A - Large-target-surface and high-resolution day and night lens and use method thereof - Google Patents
Large-target-surface and high-resolution day and night lens and use method thereof Download PDFInfo
- Publication number
- CN104965292A CN104965292A CN201510407745.4A CN201510407745A CN104965292A CN 104965292 A CN104965292 A CN 104965292A CN 201510407745 A CN201510407745 A CN 201510407745A CN 104965292 A CN104965292 A CN 104965292A
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- lens
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- group
- cam
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Classifications
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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
- 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
-
- 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
- G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/177—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
Abstract
The invention relates to a large-target-surface and high-resolution day and night lens and a use method thereof. The mechanical structure of the lens comprises a front group lens base which is installed in an external cover and used for installing a front group A, a back group lens base which is used for installing a back group B, and an adjusting screw rod. The front group lens base is flexibly installed in a front group lens cone. The external side of the front group lens cone is sleeved by a front cam which drives the front group lens base to move forwardly and backwardly. The back group lens base is flexibly installed in a back group lens cone. The external side of the back group lens cone is sleeved by a back cam which drives the back group lens base to move forwardly and backwardly. An aperture is arranged between the front group lens cone and the back group lens cone. The front group lens base is externally sleeved by a focusing rotating wheel which drives the front cam to rotate. The front group lens cone is provided with a locking nail which is used for fixing a focusing position. The adjusting screw rod penetrates through the external cover and can drive the back cam to rotate. A focal length manual adjusting function is realized by the lens, the lens is suitable for 1/1.8" large-target-surface CCD chip and the lens has high-resolution imaging capability so that the market demands can be met.
Description
Technical field
The present invention relates to the imaging lens device of supervisory system, particularly a kind of large target surface high resolution day and night camera lens and using method thereof.
Background technology
Engineering staff needs by the focus adjustment in certain limit in construction debug process, find one can make customer satisfaction system observation scope, repeatedly need not change the camera lens of different focal, this point particularly seems in the construction of other places to be needed conveniently, but the tight shot of routine only has unique focal length, for monitoring that on-the-spot ambient conditions is very inconvenient observation when very not understanding, and motorized zoom lens sexual valence is applied in the gesture can drawn a snake and add feet to it in this respect.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide one to realize manual adjustments focal length function, meeting the monitoring demand of varying environment; Be applicable to 1/1.8 " large target surface CCD chip, meet the monitoring demand at super large visual angle; There is high-resolution imaging ability, meet large target surface high resolution day and night camera lens and the using method thereof of market high-definition monitoring demand.
Technical scheme of the present invention is a kind of large target surface high resolution day and night camera lens, the physical construction of described camera lens comprises and being arranged in outer cover for arrangement of mirrors seat before group A before installing, for installing rear arrangement of mirrors seat and the adjusting screw(rod) of rear group of B, described front arrangement of mirrors seat is movably installed in front arrangement of mirrors cylinder, the front cam that before driving, arrangement of mirrors seat is movable is arranged with outside described front arrangement of mirrors cylinder, described rear arrangement of mirrors seat is movably installed in rear arrangement of mirrors cylinder, the rear cam that after driving, arrangement of mirrors seat is movable is arranged with outside described rear arrangement of mirrors cylinder, aperture is provided with between described front arrangement of mirrors cylinder and rear arrangement of mirrors cylinder, the focusing runner driving front cam to rotate is arranged with outside described front arrangement of mirrors seat, described front arrangement of mirrors cylinder is provided with the locking nail for fixed-focus position, described adjusting screw(rod) also can drive rear cam to rotate through outer cover.
Further, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, light hurdle C is set between front group of A and rear group of B, before described, group A is provided with lens A-1, lens A-2 and lens A-3 successively, the first gummed group that described rear group of B is provided with lens B-1, lens B-2, lens B-3, the first gummed group of being touched by lens B-4 and lens B-5 successively and is touched by lens B-6 and lens B-7.
Further, airspace between described lens A-1 and lens A-2 is 4.30mm, airspace between lens A-2 and lens A-3 is 1.6mm, airspace between lens B-1 and lens B-2 is 0.60mm, airspace between lens B-3 and lens B-4 is 0.10mm, and the airspace between lens B-5 and lens B-6 is 1.00mm.
Further, be provided with spacer ring between described lens A-2 and lens A-3, described lens B-2 and lens B-3 is provided with spacer ring.
Further, described front group of A and rear group of B all adopts low dispersion, the high optical glass material reflected.
Further, described first gummed group and the second gummed group are a positive lens and glue together mutually with a negative lens.
Further, described aperture is integral type auto iris.
A kind of using method of large target surface high resolution day and night camera lens, rotate by focusing on driven by rotating wheel front cam, before front cam drives, arrangement of mirrors seat moves forward and backward, realize the focusing of camera lens, focus on well by the fixing front arrangement of mirrors cylinder of locking nail, after being driven by adjusting screw(rod), cam rotates, and after front cam drives, arrangement of mirrors seat moves forward and backward, and realizes the anamorphosis function of camera lens.
Compared with prior art, the present invention has following beneficial effect: realize manual adjustments focal length function, meets the monitoring demand of varying environment; Be applicable to 1/1.8 " large target surface CCD chip, meet the monitoring demand at super large visual angle; There is high-resolution imaging ability, meet market high-definition monitoring demand.
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the present invention.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of the embodiment of the present invention.
Fig. 2 is the mechanical construction drawing of the embodiment of the present invention.
In figure: A-1-lens A-1, A-2-lens A-2, A-3-lens A-3, B-1-lens B-1, B-2-lens B-2, B-3-lens B-3, B-4-lens B-4, B-5-lens B-5, B-6-lens B-6, B-7-lens B-7, C-light hurdle C; 1-outer cover; 2-aperture; 3-spacer ring; Arrangement of mirrors seat before 4-; Arrangement of mirrors cylinder before 5-; 6-front cam; 7-locking nail; 8-focuses on runner; Arrangement of mirrors seat after 9-; Arrangement of mirrors cylinder after 10-; Cam after 11-; 12-adjusting screw(rod).
Embodiment
As shown in Figure 1 and 2, the physical construction of described camera lens comprises and being arranged in outer cover for arrangement of mirrors seat before group A before installing, for installing rear arrangement of mirrors seat and the adjusting screw(rod) of rear group of B, described front arrangement of mirrors seat is movably installed in front arrangement of mirrors cylinder, the front cam that before driving, arrangement of mirrors seat is movable is arranged with outside described front arrangement of mirrors cylinder, described rear arrangement of mirrors seat is movably installed in rear arrangement of mirrors cylinder, the rear cam that after driving, arrangement of mirrors seat is movable is arranged with outside described rear arrangement of mirrors cylinder, aperture is provided with between described front arrangement of mirrors cylinder and rear arrangement of mirrors cylinder, the focusing runner driving front cam to rotate is arranged with outside described front arrangement of mirrors seat, described front arrangement of mirrors cylinder is provided with the locking nail for fixed-focus position, described adjusting screw(rod) also can drive rear cam to rotate through outer cover.
In the present embodiment, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, light hurdle C is set between front group of A and rear group of B, before described, group A is provided with lens A-1, lens A-2 and lens A-3 successively, the first gummed group that described rear group of B is provided with lens B-1, lens B-2, lens B-3, the first gummed group of being touched by lens B-4 and lens B-5 successively and is touched by lens B-6 and lens B-7.
In the present embodiment, airspace between described lens A-1 and lens A-2 is 4.30mm, airspace between lens A-2 and lens A-3 is 1.6mm, airspace between lens B-1 and lens B-2 is 0.60mm, airspace between lens B-3 and lens B-4 is 0.10mm, and the airspace between lens B-5 and lens B-6 is 1.00mm.
In the present embodiment, in order to ensure the airspace between eyeglass, be provided with spacer ring between described lens A-2 and lens A-3, described lens B-2 and lens B-3 is provided with spacer ring.
In the present embodiment, described front group of A and rear group of B all adopts low dispersion, the high optical glass material reflected, by area of computer aided optical design and optimization, correct the various aberrations of optical lens perfectly, make the mtf value of camera lens at 200lp/mm, ensure the high resolving power performance of camera lens, the requirement of 6,000,000 pixel high definition video shootings can be adapted to.
In the present embodiment, described first gummed group and the second gummed group are a positive lens and glue together mutually with a negative lens, adopt two balsaming lens groups, make camera lens reach the short performance index of object lens of large relative aperture, wide-angle, structure length.
In the present embodiment, for realizing the function of aperture, damascene structures is utilized to design, adopt integral type auto iris, significantly can optimize mounting process, while production efficiency is provided, strengthen structural stability, for meeting the how accurate the control of diaphragm needs in market, also can match P type aperture, strengthening lens imaging ability further.
In the present embodiment, optical texture utilizes the refractive index of the positive and negative eyeglass of gummed group and the difference of dispersion, the aberration of corrective lens, makes resolution of lens be less than 1% up to 6,000,000 pixels, distortion.
In the present embodiment, for realizing the function of manual focusing, devise focusing runner, with front cam by snap-fit engagement, thus front cam is driven to rotate, under the effect by straight guide groove in the CAM groove of front cam and front arrangement of mirrors cylinder, group A rectilinear motion before making, realize focusing function, be equipped with locking nail simultaneously, for fixed-focus position.
In the present embodiment, by adjuster bar, through cover structure, after driving, cam realizes anamorphosis function, outer cover 2 identifies zoom direction (T, W), is convenient to customer recognition.
In this enforcement, each lens barrel, microscope base adopt high-precision mold shaping, have both ensured the accurate of the concentricity of camera lens, precision and axial location, make again the compact conformation of camera lens, attractive in appearance as far as possible.Adopt hot melting process fixing len, devise different spacer rings simultaneously, ensure the airspace between eyeglass, thus reach high picture element, the Large visual angle angle of camera lens.
In the present embodiment, consider the aesthetic property of camera lens, focusing runner is designed with annular knurl, strengthens structural population equilibrium.
A kind of using method of large target surface high resolution day and night camera lens, rotate by focusing on driven by rotating wheel front cam, before front cam drives, arrangement of mirrors seat moves forward and backward, realize the focusing of camera lens, focus on well by the fixing front arrangement of mirrors cylinder of locking nail, after being driven by adjusting screw(rod), cam rotates, and after front cam drives, arrangement of mirrors seat moves forward and backward, and realizes the anamorphosis function of camera lens.
In the present embodiment, the technical indicator of this camera lens realization is as follows: focal length: f '=3.6-10mm; Relative aperture D/f '=1/1.5; Horizontal field of view angle: 33 °-109 °; Resolution: the highest 6,000,000 pixels; Light path overall length ∑≤51mm; Be suitable for spectral line scope: 400nm ~ 700nm; Maximum imaging target surface reaches 1/1.8 ".
In the present embodiment, the highest 6,000,000 pixels of resolution of this kind of camera lens, the resolution in this type of market, optical center will keep the highest as far as possible, and the decay of peripheral field resolution is the least possible, and this just requires will to guarantee in structural design the accurate, steady etc. of the actions such as the concentricity of each constituent element of system and focusing.
In the present embodiment, optical system is through optimizing, and close-shot, apart from reaching 0.3m, can realize blur-free imaging relative to common zoom lens in nearer object distance.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. a large target surface high resolution day and night camera lens, it is characterized in that: the physical construction of described camera lens comprises and being arranged in outer cover for arrangement of mirrors seat before group A before installing, for installing rear arrangement of mirrors seat and the adjusting screw(rod) of rear group of B, described front arrangement of mirrors seat is movably installed in front arrangement of mirrors cylinder, the front cam that before driving, arrangement of mirrors seat is movable is arranged with outside described front arrangement of mirrors cylinder, described rear arrangement of mirrors seat is movably installed in rear arrangement of mirrors cylinder, the rear cam that after driving, arrangement of mirrors seat is movable is arranged with outside described rear arrangement of mirrors cylinder, aperture is provided with between described front arrangement of mirrors cylinder and rear arrangement of mirrors cylinder, the focusing runner driving front cam to rotate is arranged with outside described front arrangement of mirrors seat, described front arrangement of mirrors cylinder is provided with the locking nail for fixed-focus position, described adjusting screw(rod) also can drive rear cam to rotate through outer cover.
2. large target surface high resolution day and night camera lens according to claim 1, it is characterized in that: the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, light hurdle C is set between front group of A and rear group of B, before described, group A is provided with lens A-1, lens A-2 and lens A-3 successively, the first gummed group that described rear group of B is provided with lens B-1, lens B-2, lens B-3, the first gummed group of being touched by lens B-4 and lens B-5 successively and is touched by lens B-6 and lens B-7.
3. large target surface high resolution day and night camera lens according to claim 2, it is characterized in that: the airspace between described lens A-1 and lens A-2 is 4.30mm, airspace between lens A-2 and lens A-3 is 1.6mm, airspace between lens B-1 and lens B-2 is 0.60mm, airspace between lens B-3 and lens B-4 is 0.10mm, and the airspace between lens B-5 and lens B-6 is 1.00mm.
4. large target surface high resolution day and night camera lens according to claim 2, it is characterized in that: be provided with spacer ring between described lens A-2 and lens A-3, described lens B-2 and lens B-3 is provided with spacer ring.
5. large target surface high resolution day and night camera lens according to claim 2, is characterized in that: described front group of A and rear group of B all adopts low dispersion, the high optical glass material reflected.
6. large target surface high resolution day and night camera lens according to claim 2, is characterized in that: described first gummed group and the second gummed group are a positive lens and glue together mutually with a negative lens.
7. large target surface high resolution day and night camera lens according to claim 1, is characterized in that: described aperture is integral type auto iris.
8. the using method of a large target surface high resolution day and night camera lens, it is characterized in that: adopt large target surface high resolution day and night camera lens as claimed in claim 1, rotate by focusing on driven by rotating wheel front cam, before front cam drives, arrangement of mirrors seat moves forward and backward, realize the focusing of camera lens, focus on by the fixing front arrangement of mirrors cylinder of locking nail well, cam rotation after being driven by adjusting screw(rod), after front cam drives, arrangement of mirrors seat moves forward and backward, and realizes the anamorphosis function of camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407745.4A CN104965292A (en) | 2015-07-14 | 2015-07-14 | Large-target-surface and high-resolution day and night lens and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407745.4A CN104965292A (en) | 2015-07-14 | 2015-07-14 | Large-target-surface and high-resolution day and night lens and use method thereof |
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| CN104965292A true CN104965292A (en) | 2015-10-07 |
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| CN201510407745.4A Pending CN104965292A (en) | 2015-07-14 | 2015-07-14 | Large-target-surface and high-resolution day and night lens and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917649A (en) * | 2021-10-19 | 2022-01-11 | 中国北方车辆研究所 | High-precision optical lens focusing mechanism |
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| JPH09197241A (en) * | 1996-01-16 | 1997-07-31 | Fuji Photo Optical Co Ltd | Driving mechanism for photographic lens with variable focusing device |
| KR20050006619A (en) * | 2003-07-09 | 2005-01-17 | 삼성전기주식회사 | lens driving device |
| CN103176263A (en) * | 2013-02-20 | 2013-06-26 | 福建福光数码科技有限公司 | Day and night P-iris lens with three million pixels |
| CN103809268A (en) * | 2014-03-03 | 2014-05-21 | 福建福光数码科技有限公司 | High-light-flux automatic aperture fixed-focus lens |
| CN103823295A (en) * | 2014-03-07 | 2014-05-28 | 福建福光数码科技有限公司 | Electric-zooming day and night dual-purpose pick-up lens |
| CN103926682A (en) * | 2014-04-08 | 2014-07-16 | 福建福光数码科技有限公司 | High-precision electric-zooming-focusing three-million-pixel camera lens allowed to be used in day and night |
| CN104360467A (en) * | 2014-11-29 | 2015-02-18 | 福建福光数码科技有限公司 | Large-target-surface high-precision mold high-definition zooming monitoring lens |
| CN204832642U (en) * | 2015-07-14 | 2015-12-02 | 福建福光股份有限公司 | Big dual -purpose camera lens of target surface high resolution day night |
-
2015
- 2015-07-14 CN CN201510407745.4A patent/CN104965292A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09197241A (en) * | 1996-01-16 | 1997-07-31 | Fuji Photo Optical Co Ltd | Driving mechanism for photographic lens with variable focusing device |
| KR20050006619A (en) * | 2003-07-09 | 2005-01-17 | 삼성전기주식회사 | lens driving device |
| CN103176263A (en) * | 2013-02-20 | 2013-06-26 | 福建福光数码科技有限公司 | Day and night P-iris lens with three million pixels |
| CN103809268A (en) * | 2014-03-03 | 2014-05-21 | 福建福光数码科技有限公司 | High-light-flux automatic aperture fixed-focus lens |
| CN103823295A (en) * | 2014-03-07 | 2014-05-28 | 福建福光数码科技有限公司 | Electric-zooming day and night dual-purpose pick-up lens |
| CN103926682A (en) * | 2014-04-08 | 2014-07-16 | 福建福光数码科技有限公司 | High-precision electric-zooming-focusing three-million-pixel camera lens allowed to be used in day and night |
| CN104360467A (en) * | 2014-11-29 | 2015-02-18 | 福建福光数码科技有限公司 | Large-target-surface high-precision mold high-definition zooming monitoring lens |
| CN204832642U (en) * | 2015-07-14 | 2015-12-02 | 福建福光股份有限公司 | Big dual -purpose camera lens of target surface high resolution day night |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917649A (en) * | 2021-10-19 | 2022-01-11 | 中国北方车辆研究所 | High-precision optical lens focusing mechanism |
| CN113917649B (en) * | 2021-10-19 | 2024-02-27 | 中国北方车辆研究所 | High-precision optical lens focusing mechanism |
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Application publication date: 20151007 |
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