CN205027960U - Confocal aspherical mirror head that zooms of high resolution day night - Google Patents
Confocal aspherical mirror head that zooms of high resolution day night Download PDFInfo
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- CN205027960U CN205027960U CN201520791953.4U CN201520791953U CN205027960U CN 205027960 U CN205027960 U CN 205027960U CN 201520791953 U CN201520791953 U CN 201520791953U CN 205027960 U CN205027960 U CN 205027960U
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Abstract
The utility model relates to a confocal aspherical mirror head that zooms of high resolution day night, be equipped with in proper order along light from left hand right side incident direction among the optical system of camera lens the focal power before for the lens group of burden the A of group and focal power organize B after organizing for positive lens, the preceding A of group organizes after and sets up glazed fence C between the B, the preceding A of group includes a burden month tooth form lens A -1, burden biconcave aspherical lens A -2, the biconvex lens A -3 who follows the left hand right side and set gradually, after organize B and include negative crescent moon aspherical lens B -1, biconvex lens B -2, plano -concave type lens B -3, the biconvex aspherical lens B -4 who sets gradually from the left hand right side. This confocal aspherical mirror head that zooms of high resolution day night organizes B after with through the preceding A of group and corresponds along the optical axis around and remove, has realized the function that changes the optical system focus.
Description
Technical field
The utility model relates to the optical pick-up apparatus field of video technique, particularly a kind of high resolving power day and night confocal zoom aspheric lens.
Background technology
Along with traffic network is day by day intensive, traffic is day by day busy, in order to safeguard traffic safety, prevent traffic jam, to realize under busy road conditions in perfect order, for development intelligent transportation system provides a high-resolution camera lens to have realistic meaning.Early stage tight shot structure is simple, performance index are low, can only be adaptive with the SD CCD of 20 ~ 300,000 pixels or cmos camera in the sharpness of image, shooting effect is general, picture is worth little, the needs that monitoring field " is seen " can only be adapted to, even do not read the number-plate number and do not see Chu's character features.Such resolution can not meet requirement and the society qualitative demand to supervisory system of present high-definition camera far away.
Utility model content
The purpose of this utility model is for above weak point, provides a kind of high resolving power day and night confocal zoom aspheric lens.
The technical solution of the utility model is, a kind of high resolving power day and night confocal zoom aspheric lens, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with light hurdle C between described front group of A and rear group of B, before described, group A comprises the negative selenodont lens A-1 set gradually from left to right, negative concave-concave non-spherical lens A-2, biconvex lens A-3; Described rear group of B comprises the negative crescent moon non-spherical lens B-1, biconvex lens B-2, platycelous lens B-3, the biconvex non-spherical lens B-4 that set gradually from left to right.
Further, between described front group of A and rear group of B, the airspace of short Jiao is 21.69mm, the airspace of focal length is 1.92mm, before described, in group A, negative airspace between selenodont lens A-1 and negative concave-concave non-spherical lens A-2 is 5.267mm, airspace before described in group A between biconvex lens A-3 and negative concave-concave non-spherical lens A-2 is 0.099mm, before described, the airspace of group A when short Jiao between biconvex lens A-3 and light hurdle C is 13.142mm, before described, the group airspace of A when focal length between biconvex lens A-3 and light hurdle C is 1.673mm, described rear group of B airspace born between crescent moon non-spherical lens B-1 and light hurdle C when short Jiao is 8.547mm, the described rear group of B airspace born when focal length between crescent moon non-spherical lens B-1 and light hurdle C is 0.244mm, in described rear group of B, negative airspace between crescent moon non-spherical lens B-1 and biconvex lens B-2 is 0.106mm, airspace in described rear group of B between biconvex lens B-2 and platycelous lens B-3 is 0.096mm, airspace in described rear group of B between platycelous lens B-3 and biconvex non-spherical lens B-4 is 1.085mm.
Further, the physical construction of described camera lens comprises body tube, and the premenstrual arrangement of mirrors seat in inner chamber front end of described body tube is provided with group A before lens set, the intracavity posterior end of described body tube through after arrangement of mirrors seat lens set is installed after organize B.
Further, described negative selenodont lens A-1, negative concave-concave non-spherical lens A-2, biconvex lens A-3 are connected on front arrangement of mirrors seat successively, on front arrangement of mirrors seat, be provided with the step for ensureing airspace between described negative concave-concave non-spherical lens A-2 and biconvex lens A-3, described negative selenodont lens A-1 side is provided with and prevents from blocking trim ring before the tilting of edge-light for group A eyeglass before fixing.
Further, described negative crescent moon non-spherical lens B-1, biconvex lens B-2, platycelous lens B-3, biconvex non-spherical lens B-4 are connected on rear arrangement of mirrors seat successively, the spacer ring A of step is provided with between described negative crescent moon non-spherical lens B-1 and biconvex lens B-2, be provided with spacer ring B between described biconvex lens B-2 and platycelous lens B-3, described biconvex non-spherical lens B-4 side is provided with the rear trim ring for fixing rear group B eyeglass.
Further, the outer circumferential side of described body tube is provided with the front cam for realizing zoom in front end, the outer circumferential side of described body tube is provided with the rear cam for realizing zoom in rear end, described front arrangement of mirrors seat is fixed with for front cam movement can on the helicla flute of the front end of body tube guide pin before movement, the movement described rear arrangement of mirrors seat is fixed with for cam subsequently can the rear guide pin of movement on the helicla flute of the rear end of body tube, described front guide pin and rear guide pin all adopt threaded engagement, the nylon jacket had for increasing friction force is all overlapped at the top of described front guide pin and rear guide pin.
Further, described front cam, rear cam are also disposed with for locking to prevent confirming that the video camera of focal length moves or shakes the variation of process cam and dial nail before causing focal length variations, dial nail afterwards.
Compared with prior art, the utility model has following beneficial effect: the reasonable distribution focal power of front group of A and rear group of B in optical texture of the present utility model.In the group of front and back, in the prototype of three-chip type Ke Ke type structure, first eyeglass is changed into three lens, make camera lens reach the short performance index of object lens of large relative aperture, wide-angle, structure length; By the optical glass material of reasonable selection forward and backward two groups seven, select the optical glass material of high refractivity, low dispersion as far as possible.Wherein negative concave-concave non-spherical lens A-2, negative crescent moon non-spherical lens B-1, biconvex non-spherical lens B-4 are aspherical lens, use aspheric design, have modified image, solve the problems such as visual field distortion, correct the various aberrations of optical lens perfectly, make the resolution of camera lens high, the requirement of 3,000,000 pixel high definition video shootings can be adapted to.Simultaneously, accomplish to reduce the aberration aberration that eyeglass produces as far as possible, as much as possible mutually compensate, a slice aspherical lens is made to play the effect of several spheric glasses, so higher image quality can be obtained with fairly simple optical texture, simultaneously also can make volume, weight manufacturing cost significantly declines, also make the miniaturization lightweight of camera lens become possibility; When optical design, aberration correction and balance are carried out to the wide spectral range of 480nm ~ 850nm, make camera lens have excellent picture element at wide spectral range, achieve wide spectral confocal.Camera lens can not only blur-free imaging under photoenvironment in the daytime, night pole low-light (level) or zero illumination environment under also can blur-free imaging by infrared light filling, the monitoring continuously that achieves 24 hours, and when day and night switching not defocusing, focus without the need to scene.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model patent is further illustrated.
Fig. 1 is the optical system schematic diagram of this utility model;
Fig. 2 is the physical construction schematic diagram of this utility model;
In figure:
Group A before A-; B is organized after B-; A-1 bears selenodont lens A-1; A-2 bears concave-concave non-spherical lens A-2; A-3 biconvex lens A-3; C-light hurdle C; B-1 bears crescent moon non-spherical lens B-1; B-2 biconvex lens B-2; B-3 platycelous lens B-3; B-4 biconvex non-spherical lens B-4; 1-body tube; Arrangement of mirrors seat before 2-; Arrangement of mirrors seat after 3-; Trim ring before 4-; 5-spacer ring A; 6-spacer ring B; Trim ring after 7-; 8-front cam; Cam after 9-; Guide pin before 10-; Guide pin after 11-; Nail is dialled before 12-; Nail is dialled after 13-.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Fig. 1 ~ 2, a kind of high resolving power day and night confocal zoom aspheric lens, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with light hurdle C between described front group of A and rear group of B, before described, group A comprises the negative selenodont lens A-1 set gradually from left to right, negative concave-concave non-spherical lens A-2, biconvex lens A-3; Described rear group of B comprises the negative crescent moon non-spherical lens B-1, biconvex lens B-2, platycelous lens B-3, the biconvex non-spherical lens B-4 that set gradually from left to right.
In the present embodiment, between described front group of A and rear group of B, the airspace of short Jiao is 21.69mm, the airspace of focal length is 1.92mm, before described, in group A, negative airspace between selenodont lens A-1 and negative concave-concave non-spherical lens A-2 is 5.267mm, airspace before described in group A between biconvex lens A-3 and negative concave-concave non-spherical lens A-2 is 0.099mm, before described, the airspace of group A when short Jiao between biconvex lens A-3 and light hurdle C is 13.142mm, before described, the group airspace of A when focal length between biconvex lens A-3 and light hurdle C is 1.673mm, described rear group of B airspace born between crescent moon non-spherical lens B-1 and light hurdle C when short Jiao is 8.547mm, the described rear group of B airspace born when focal length between crescent moon non-spherical lens B-1 and light hurdle C is 0.244mm, in described rear group of B, negative airspace between crescent moon non-spherical lens B-1 and biconvex lens B-2 is 0.106mm, airspace in described rear group of B between biconvex lens B-2 and platycelous lens B-3 is 0.096mm, airspace in described rear group of B between platycelous lens B-3 and biconvex non-spherical lens B-4 is 1.085mm.
In the present embodiment, the physical construction of described camera lens comprises body tube 1, and the premenstrual arrangement of mirrors seat 2 in inner chamber front end of described body tube is provided with group A before lens set, the intracavity posterior end of described body tube through after arrangement of mirrors seat 3 lens set is installed after organize B.
In the present embodiment, described negative selenodont lens A-1, negative concave-concave non-spherical lens A-2, biconvex lens A-3 is connected on front arrangement of mirrors seat successively, on front arrangement of mirrors seat, the step for ensureing airspace is provided with between described negative concave-concave non-spherical lens A-2 and biconvex lens A-3, not only solve because space between eyeglass is too little, spacer ring is difficult to processing problems, and effectively can also stop veiling glare, described negative selenodont lens A-1 side is provided with and prevents from blocking trim ring 4 before the tilting of edge-light for group A eyeglass before fixing, ensure the imaging clearly in high field angle.
In the present embodiment, described negative crescent moon non-spherical lens B-1, biconvex lens B-2, platycelous lens B-3, biconvex non-spherical lens B-4 are connected on rear arrangement of mirrors seat successively, the spacer ring A5 of step is provided with between described negative crescent moon non-spherical lens B-1 and biconvex lens B-2, spacer ring A makes step and not only saves material but also can better play the effect of tackling parasitic light, be provided with spacer ring B6 between described biconvex lens B-2 and platycelous lens B-3, described biconvex non-spherical lens B-4 side is provided with the rear trim ring 7 for fixing rear group B eyeglass.
In the present embodiment, the outer circumferential side of described body tube is provided with the front cam 8 for realizing zoom in front end, the outer circumferential side of described body tube is provided with the rear cam 9 for realizing zoom in rear end, described front arrangement of mirrors seat is fixed with for front cam movement can on the helicla flute of the front end of body tube guide pin 10 before movement, the movement described rear arrangement of mirrors seat is fixed with for cam subsequently can the rear guide pin 11 of movement on the helicla flute of the rear end of body tube, described front guide pin and rear guide pin all adopt threaded engagement, prevent from occurring to run burnt situation in rotation or vibrations process, the nylon jacket had for increasing friction force is all overlapped at the top of described front guide pin and rear guide pin.
In the present embodiment, described front cam, rear cam are also disposed with for locking to prevent confirming that the video camera of focal length moves or shakes the variation of process cam and dial nail 12 before causing focal length variations, dial nail 13 afterwards.
In the present embodiment, the tolerance of the mechanical parts internal diameter directly coordinated with eyeglass is all between 0 ~ 0.02mm, thus ensureing its precision coordinated, body tube is the right alignment that ensure that whole light path of producing on same board, makes the off-axis aberration of optical lens reach designing requirement.
In the present embodiment: rotate front cam, the notch of front cam drives front guide pin to move along the helicla flute of body tube front end, thus drives front arrangement of mirrors seat and front group of A along axis rectilinear motion; Cam after rotation, the notch of rear cam drives rear guide pin to move along the helicla flute of body tube rear end, thus drives rear arrangement of mirrors seat and rear group of B along axis rectilinear motion; When front cam, rear cam adjustment are to the position of imaging clearly, by front group of nail, dial nail locking, the relative position of fixing front arrangement of mirrors seat, rear arrangement of mirrors seat afterwards.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index:
1. focal length: f '=2.8 ~ 12mm;
2. relative aperture D/F=1/1.6
Field angle 2 ω: 132 ° ~ 38 ° (effective imaging surface n ' >=φ 6.7mm);
3. be suitable for spectral range: 480nm ~ 850nm;
4. resolution: adaptive with the high-definition camera of 3,000,000 pixels;
5. light path overall length ∑ L≤51mm;
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a high resolving power day and night confocal zoom aspheric lens, it is characterized in that: in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with light hurdle C between described front group of A and rear group of B, before described, group A comprises the negative selenodont lens A-1 set gradually from left to right, negative concave-concave non-spherical lens A-2, biconvex lens A-3; Described rear group of B comprises the negative crescent moon non-spherical lens B-1, biconvex lens B-2, platycelous lens B-3, the biconvex non-spherical lens B-4 that set gradually from left to right.
2. high resolving power according to claim 1 day and night confocal zoom aspheric lens, it is characterized in that: between described front group of A and rear group of B, the airspace of short Jiao is 21.69mm, the airspace of focal length is 1.92mm, before described, in group A, negative airspace between selenodont lens A-1 and negative concave-concave non-spherical lens A-2 is 5.267mm, airspace before described in group A between biconvex lens A-3 and negative concave-concave non-spherical lens A-2 is 0.099mm, before described, the airspace of group A when short Jiao between biconvex lens A-3 and light hurdle C is 13.142mm, before described, the group airspace of A when focal length between biconvex lens A-3 and light hurdle C is 1.673mm, described rear group of B airspace born between crescent moon non-spherical lens B-1 and light hurdle C when short Jiao is 8.547mm, the described rear group of B airspace born when focal length between crescent moon non-spherical lens B-1 and light hurdle C is 0.244mm, in described rear group of B, negative airspace between crescent moon non-spherical lens B-1 and biconvex lens B-2 is 0.106mm, airspace in described rear group of B between biconvex lens B-2 and platycelous lens B-3 is 0.096mm, airspace in described rear group of B between platycelous lens B-3 and biconvex non-spherical lens B-4 is 1.085mm.
3. high resolving power according to claim 2 day and night confocal zoom aspheric lens, it is characterized in that: the physical construction of described camera lens comprises body tube, the premenstrual arrangement of mirrors seat in inner chamber front end of described body tube is provided with group A before lens set, the intracavity posterior end of described body tube through after arrangement of mirrors seat lens set is installed after organize B.
4. high resolving power according to claim 3 day and night confocal zoom aspheric lens, it is characterized in that: described negative selenodont lens A-1, negative concave-concave non-spherical lens A-2, biconvex lens A-3 are connected on front arrangement of mirrors seat successively, on front arrangement of mirrors seat, be provided with the step for ensureing airspace between described negative concave-concave non-spherical lens A-2 and biconvex lens A-3, described negative selenodont lens A-1 side is provided with and prevents from blocking trim ring before the tilting of edge-light for group A eyeglass before fixing.
5. high resolving power according to claim 3 day and night confocal zoom aspheric lens, it is characterized in that: described negative crescent moon non-spherical lens B-1, biconvex lens B-2, platycelous lens B-3, biconvex non-spherical lens B-4 are connected on rear arrangement of mirrors seat successively, the spacer ring A of step is provided with between described negative crescent moon non-spherical lens B-1 and biconvex lens B-2, be provided with spacer ring B between described biconvex lens B-2 and platycelous lens B-3, described biconvex non-spherical lens B-4 side is provided with the rear trim ring for fixing rear group B eyeglass.
6. high resolving power according to claim 3 day and night confocal zoom aspheric lens, it is characterized in that: the outer circumferential side of described body tube is provided with the front cam for realizing zoom in front end, the outer circumferential side of described body tube is provided with the rear cam for realizing zoom in rear end, described front arrangement of mirrors seat is fixed with for front cam movement can on the helicla flute of the front end of body tube guide pin before movement, the movement described rear arrangement of mirrors seat is fixed with for cam subsequently can the rear guide pin of movement on the helicla flute of the rear end of body tube, described front guide pin and rear guide pin all adopt threaded engagement, the nylon jacket had for increasing friction force is all overlapped at the top of described front guide pin and rear guide pin.
7. high resolving power according to claim 6 day and night confocal zoom aspheric lens, is characterized in that: described front cam, rear cam are also disposed with and prevent from confirming that the video camera of focal length moves or shakes the variation of process cam and dial nail, rear group of nail before causing focal length variations for locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520791953.4U CN205027960U (en) | 2015-10-13 | 2015-10-13 | Confocal aspherical mirror head that zooms of high resolution day night |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520791953.4U CN205027960U (en) | 2015-10-13 | 2015-10-13 | Confocal aspherical mirror head that zooms of high resolution day night |
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| Publication Number | Publication Date |
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| CN205027960U true CN205027960U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520791953.4U Withdrawn - After Issue CN205027960U (en) | 2015-10-13 | 2015-10-13 | Confocal aspherical mirror head that zooms of high resolution day night |
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| CN (1) | CN205027960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158885A (en) * | 2015-10-13 | 2015-12-16 | 福建福光股份有限公司 | High resolution day and night confocal zooming aspheric lens and focusing method thereof |
| CN110119023A (en) * | 2019-06-16 | 2019-08-13 | 福建福光股份有限公司 | 6000000 high-resolution zoom camera lenses |
-
2015
- 2015-10-13 CN CN201520791953.4U patent/CN205027960U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158885A (en) * | 2015-10-13 | 2015-12-16 | 福建福光股份有限公司 | High resolution day and night confocal zooming aspheric lens and focusing method thereof |
| CN105158885B (en) * | 2015-10-13 | 2017-11-21 | 福建福光股份有限公司 | High-resolution day and night confocal zoom aspheric lens |
| CN110119023A (en) * | 2019-06-16 | 2019-08-13 | 福建福光股份有限公司 | 6000000 high-resolution zoom camera lenses |
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Granted publication date: 20160210 Effective date of abandoning: 20171121 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160210 Effective date of abandoning: 20171121 |
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| AV01 | Patent right actively abandoned |