CN205193340U - Take photograph type super large image planes high definition camera lens far away - Google Patents
Take photograph type super large image planes high definition camera lens far away Download PDFInfo
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- CN205193340U CN205193340U CN201520941956.1U CN201520941956U CN205193340U CN 205193340 U CN205193340 U CN 205193340U CN 201520941956 U CN201520941956 U CN 201520941956U CN 205193340 U CN205193340 U CN 205193340U
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- camera lens
- high definition
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Abstract
The utility model relates to a take photograph type super large image planes high definition camera lens far away, the mechanical structure of camera lens includes from the left hand right side primary mirror section of thick bamboo of erection joint on the bottom plate in proper order, a back arrangement of mirrors section of thick bamboo and CCD subassembly, be connected through smooth fence seat between a primary mirror section of thick bamboo and the back arrangement of mirrors section of thick bamboo, the optical system of camera lens includes that it is the positive preceding fixed A of group to be provided with the focal power along the light path respectively from the right incident direction of left hand, the focal power is the B of focusing group of burden, iris diaphragm C, the focal power is the positive D of after -fixing group, preceding fixed A of group and the B of focusing group set up in a primary mirror section of thick bamboo, the D of after -fixing group sets up in the arrangement of mirrors section of thick bamboo of back, the utility model discloses optical length is less than 0.56 with the ratio of system's focus, far below the general type dioptric system far away that takes the photograph, has overcome and has taken the photograph the shortcoming that type structure off -axis aberration far away is hard to rectify, be difficult to adapt to the formation of image of big target surface, and the formation of image target surface has reached 44mm for light information collection ability strengthens greatly, has that light transmission amount is big, the high -resolution characteristics, can with high definition camera adaptation.
Description
Technical field
The utility model relates to one and takes the photograph type super large image planes high definition camera lens far away, belongs to field of photoelectric technology.
Background technology
Take the photograph the feature of type optical system far away because of its distinctive compact conformation, be widely used in occasion system being proposed to strict geometric shape restriction requirement.But this system also has intrinsic shortcoming, the main focal power of such as system concentrates on system forward part, adds the correction difficulty of spherical aberration, the aberration especially axial aberration such as second order spectrum; Focal power separate front and back phenomenon is relatively more serious, and off-axis aberration especially chromatic longitudiinal aberration, distortion etc. seriously limits the field angle taking the photograph type system far away, is difficult to apply in large target surface system; When requiring to lead to greatly light quantity, the ratio of its optics overall length and system focal length is also difficult to further reduction, and general type dioptric system ratio far away of taking the photograph is about 0.75 ~ 0.85; Particularly when requiring this type systematic and high definition camera is adaptive, further increase design difficulty.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect, provides one to take the photograph type super large image planes high definition camera lens far away.This lens imaging target surface reaches 44mm, and the ratio of optics overall length and system focal length is less than 0.56, and logical light quantity is large, and has high-resolution feature, can be adaptive with high definition camera, and intermediate mirror group adjustable focus, can meet the application requirement under extreme temperature environment.
The technical solution of the utility model is, one takes the photograph type super large image planes high definition camera lens far away, it is characterized in that: the physical construction of described camera lens comprises the body tube installed successively from left to right and be connected on base plate, rear arrangement of mirrors cylinder and CCD assembly, be connected by light hurdle seat between described body tube and rear arrangement of mirrors cylinder, the optical system of described camera lens comprise along light path from left to right incident direction be respectively arranged with focal power be positive before fixing group A, focal power is negative focusing group B, iris C, focal power is rear fixing group of positive D, before described, fixing group A and focusing group B is arranged in body tube, described rear fixing group of D is arranged in rear arrangement of mirrors cylinder.
Further, described front fixing group A comprises the plano-convex lens A-1 set gradually, positive selenodont lens A-2, negative selenodont lens A-3, just crescent moon lens A-4, described focusing group B comprise the focusing gummed group, the plano-concave lens B-3 that are touched by biconvex lens B-1 and biconcave lens B-2 that set gradually; Described rear fixing group of D comprises, the biconvex lens D-3 charge-coupled by the fixing glue of biconcave lens D-1 and plano-convex lens D-2 contiguity set gradually.
Further, along light direction, the airspace before described between fixing group A and focusing group B is 21.50mm, and the airspace between focusing group B and diaphragm C is 34.00mm, and the airspace between diaphragm C and rear fixing group of D is 50.00mm.
Further, along light direction, airspace between described plano-convex lens A-1 and positive selenodont lens A-2 is 0.20mm, airspace between positive selenodont lens A-2 and negative selenodont lens A-3 is 0.20mm, and the airspace between negative selenodont lens A-3 and positive crescent moon lens A-4 is 0.80mm; Airspace between described focusing gummed group and plano-concave lens B-3 is 4.00mm; Airspace between the charge-coupled and biconvex lens D-3 of described fixing glue is 53.00mm.
Further, described plano-convex lens A-2, positive crescent moon lens A-4 make by H-FK61 Extra-low Dispersion material.
Further, the inwall of described smooth hurdle seat is provided with the dry bar groove of promise and is coated with delustring paint.
Compared with prior art, the utility model has following beneficial effect: the ratio of optics overall length and system focal length is less than 0.56, type dioptric system (0.75 ~ 0.85) far away is taken the photograph far below general, overcome the shortcoming taken the photograph type structure off-axis aberration far away and be difficult to correct, be difficult to adapt to large target surface imaging, its imaging target surface reaches 44mm, and optical information capacity gauge is strengthened greatly; Overcome and take the photograph the shortcoming that separate front and back in type structured light focal power far away distribution is serious, be difficult to aberration on axis calibration, there is large, the high-resolution feature of logical light quantity, can be adaptive with high definition camera; Intermediate mirror group adjustable focus, can meet the application requirement under extreme temperature environment.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the utility model.
Fig. 1 is optical system diagram of the present utility model;
Fig. 2 is the utility model structural representation.
In figure:
Fixing group A before A-; A-1-plano-convex lens A-1; A-2-positive selenodont lens A-2; A-3-bears selenodont lens A-3; A-4-positive crescent moon lens A-4; B-focusing group B; B-1-biconvex lens B-1; B-2-biconcave lens B-2; B-3-plano-concave lens B-3; C-iris C; Fixing group D after D-; D-1-biconcave lens D-1; D-2-plano-convex lens D-2; D-3-biconvex lens D-3; 1-body tube; 2-base plate; 3-light hurdle seat; 4-side plate; Arrangement of mirrors cylinder after 5-; 6-CCD assembly.
Embodiment
As shown in Figure 1 and 2, one takes the photograph type super large image planes high definition camera lens far away, it is characterized in that: the physical construction of described camera lens comprises the body tube installed successively from left to right and be connected on base plate, rear arrangement of mirrors cylinder and CCD assembly, be connected by light hurdle seat between described body tube and rear arrangement of mirrors cylinder, the optical system of described camera lens comprise along light path from left to right incident direction be respectively arranged with focal power be positive before fixing group A, focal power is negative focusing group B, iris C, focal power is rear fixing group of positive D, before described, fixing group A and focusing group B is arranged in body tube, described rear fixing group of D is arranged in rear arrangement of mirrors cylinder.
In the present embodiment, described front fixing group A comprises the plano-convex lens A-1 set gradually, positive selenodont lens A-2, negative selenodont lens A-3, just crescent moon lens A-4, described focusing group B comprise the focusing gummed group, the plano-concave lens B-3 that are touched by biconvex lens B-1 and biconcave lens B-2 that set gradually; Described rear fixing group of D comprises, the biconvex lens D-3 charge-coupled by the fixing glue of biconcave lens D-1 and plano-convex lens D-2 contiguity set gradually.
In the present embodiment, along light direction, the airspace before described between fixing group A and focusing group B is 21.50mm, and the airspace between focusing group B and diaphragm C is 34.00mm, and the airspace between diaphragm C and rear fixing group of D is 50.00mm.
In the present embodiment, along light direction, airspace between described plano-convex lens A-1 and positive selenodont lens A-2 is 0.20mm, airspace between positive selenodont lens A-2 and negative selenodont lens A-3 is 0.20mm, and the airspace between negative selenodont lens A-3 and positive crescent moon lens A-4 is 0.80mm; Airspace between described focusing gummed group and plano-concave lens B-3 is 4.00mm; Airspace between the charge-coupled and biconvex lens D-3 of described fixing glue is 53.00mm.
In the present embodiment, described plano-convex lens A-2, positive crescent moon lens A-4 make by H-FK61 Extra-low Dispersion material.
In the present embodiment, when light path design, select and take the photograph type initial configuration far away, optical power profile of rationally arranging, optical system overall length is reduced with the ratio of system focal length value as far as possible; Because the main focal power of system concentrates on forward part, add the correction difficulty of the especially axial aberration such as second order spectrum of aberration on spherical aberration, axle, fixing group particularly, assume responsibility for the task of aberration on most of corrective system axle, because being employed herein the optical glass of two panels Extra-low Dispersion, the resolution of camera lens is significantly improved, and middle focusing group is used for focusing on far and near different target, compensate for the defect that the heavy caliber camera lens depth of field is little; Temperature focusing is carried out in the image planes drift simultaneously utilizing this focusing group to cause temperature, makes camera lens still can well imaging under extreme temperature environment.
In the present embodiment, in order to bear vibration and mechanical shock requirement, adopting side plate connection and base plate to assist the mode of connection to fix, effectively improving the overall resistance to shock of camera lens and reliability.Reduce the center of gravity of system simultaneously as far as possible, to increase the resonance frequency of camera lens, avoid low frequency place to produce resonance, thus improve the resistance to shock of camera lens.After this model machine is debug, carry out vibrating, impact experiment.Experimental result does not produce resonance effect in vibration frequency section, and all technical meets technical conditions requirement.
In the present embodiment, before camera lens, arrangement of mirrors sheet bore is comparatively large, and maximum caliber is 114mm.In order to meet the operating temperature requirements of-40 DEG C ~+65 DEG C, by calculating the gap suitably strengthened between eyeglass and lens barrel, ensureing the image quality of camera lens in high temperature difference situation, improving camera lens reliability.
In the present embodiment, front fixing group A and focusing group B is designed to front and back load mode, and front fixing group of A is by loading in order on the left of front arrangement of mirrors cylinder, and focusing group B is by loading in order on the right side of front arrangement of mirrors cylinder, the convenience of guarantee machine dress, light dress, debugging, facilitates maintenance and the malfunction elimination in later stage simultaneously.
In the present embodiment, the inwall places such as light hurdle seat and each trim ring, spacer ring all process the suitable groove of promise dry bar width, and coat delustring paint, utilize lens barrel inwall to the scattering of stray light emission and absorption, thus reach the object suppressing parasitic light.
In the present embodiment, the technical indicator of this camera lens realization is as follows: focal length: f '=550mm; Relative aperture D/F=1/5; Field angle 2 ω: 4.52 °; Be suitable for spectral range: 450nm ~ 700nm; Resolution: adaptive with the high-definition camera of ten million pixel; Light path overall length ∑≤308mm; Working temperature :-40 DEG C ~+65 DEG C; Work relative humidity :≤95%; Vibration: 1/2 half-sine wave, three direction of principal axis 5Hz-1000Hz, 3g; Impact: three axle side 15g, 20ms, every axle 3 times.。
In the present embodiment, by coatings optimization design, make camera lens in 450-700nm wavelength band, have the transmitance being better than 85%, improve the detectivity to distant object.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (6)
1. take the photograph type super large image planes high definition camera lens far away for one kind, it is characterized in that: the physical construction of described camera lens comprises the body tube installed successively from left to right and be connected on base plate, rear arrangement of mirrors cylinder and CCD assembly, be connected by light hurdle seat between described body tube and rear arrangement of mirrors cylinder, the optical system of described camera lens comprise along light path from left to right incident direction be respectively arranged with focal power be positive before fixing group A, focal power is negative focusing group B, iris C, focal power is rear fixing group of positive D, before described, fixing group A and focusing group B is arranged in body tube, described rear fixing group of D is arranged in rear arrangement of mirrors cylinder.
2. according to claim 1ly take the photograph type super large image planes high definition camera lens far away, it is characterized in that: described front fixing group A comprises the plano-convex lens A-1 set gradually, positive selenodont lens A-2, negative selenodont lens A-3, just crescent moon lens A-4, described focusing group B comprise the focusing gummed group, the plano-concave lens B-3 that are touched by biconvex lens B-1 and biconcave lens B-2 that set gradually; Described rear fixing group of D comprises, the biconvex lens D-3 charge-coupled by the fixing glue of biconcave lens D-1 and plano-convex lens D-2 contiguity set gradually.
3. according to claim 2ly take the photograph type super large image planes high definition camera lens far away, it is characterized in that: along light direction, airspace before described between fixing group A and focusing group B is 21.50mm, airspace between focusing group B and diaphragm C is 34.00mm, and the airspace between diaphragm C and rear fixing group of D is 50.00mm.
4. according to claim 3ly take the photograph type super large image planes high definition camera lens far away, it is characterized in that: along light direction, airspace between described plano-convex lens A-1 and positive selenodont lens A-2 is 0.20mm, airspace between positive selenodont lens A-2 and negative selenodont lens A-3 is 0.20mm, and the airspace between negative selenodont lens A-3 and positive crescent moon lens A-4 is 0.80mm; Airspace between described focusing gummed group and plano-concave lens B-3 is 4.00mm; Airspace between the charge-coupled and biconvex lens D-3 of described fixing glue is 53.00mm.
5. according to claim 2ly take the photograph type super large image planes high definition camera lens far away, it is characterized in that: described plano-convex lens A-2, positive crescent moon lens A-4 make by H-FK61 Extra-low Dispersion material.
6. according to claim 1ly take the photograph type super large image planes high definition camera lens far away, it is characterized in that: the inwall of described smooth hurdle seat is provided with the dry bar groove of promise and is coated with delustring paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941956.1U CN205193340U (en) | 2015-11-24 | 2015-11-24 | Take photograph type super large image planes high definition camera lens far away |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941956.1U CN205193340U (en) | 2015-11-24 | 2015-11-24 | Take photograph type super large image planes high definition camera lens far away |
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| Publication Number | Publication Date |
|---|---|
| CN205193340U true CN205193340U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520941956.1U Withdrawn - After Issue CN205193340U (en) | 2015-11-24 | 2015-11-24 | Take photograph type super large image planes high definition camera lens far away |
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| CN (1) | CN205193340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301744A (en) * | 2015-11-24 | 2016-02-03 | 福建福光股份有限公司 | Telephoto type super-large image plane high definition lens and installation method thereof |
| CN106184792A (en) * | 2016-08-29 | 2016-12-07 | 福建福光股份有限公司 | The photoelectric nacelle of a kind of airborne pair of light unification and control method thereof |
| CN112666691A (en) * | 2020-12-22 | 2021-04-16 | 福建福光股份有限公司 | Medium-long-focus low-light-level lens with wide waveband and large image surface and imaging method thereof |
-
2015
- 2015-11-24 CN CN201520941956.1U patent/CN205193340U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301744A (en) * | 2015-11-24 | 2016-02-03 | 福建福光股份有限公司 | Telephoto type super-large image plane high definition lens and installation method thereof |
| CN105301744B (en) * | 2015-11-24 | 2018-02-16 | 福建福光股份有限公司 | Take the photograph remote type super large image planes high definition camera lens and its installation method |
| CN106184792A (en) * | 2016-08-29 | 2016-12-07 | 福建福光股份有限公司 | The photoelectric nacelle of a kind of airborne pair of light unification and control method thereof |
| CN106184792B (en) * | 2016-08-29 | 2019-03-15 | 福建福光股份有限公司 | A kind of airborne double photosynthetic one photoelectric nacelle and its control method |
| CN112666691A (en) * | 2020-12-22 | 2021-04-16 | 福建福光股份有限公司 | Medium-long-focus low-light-level lens with wide waveband and large image surface and imaging method thereof |
| CN112666691B (en) * | 2020-12-22 | 2023-03-10 | 福建福光股份有限公司 | Medium-long-focus low-light-level lens with wide waveband and large image surface and imaging method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20180216 |
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| AV01 | Patent right actively abandoned |