CN106443940A - High-fog-penetrating-property dual-compensation type optical machinery mixed athermalization long-wave infrared vehicle-mounted lens and compensation method thereof - Google Patents

High-fog-penetrating-property dual-compensation type optical machinery mixed athermalization long-wave infrared vehicle-mounted lens and compensation method thereof Download PDF

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Publication number
CN106443940A
CN106443940A CN201611169435.4A CN201611169435A CN106443940A CN 106443940 A CN106443940 A CN 106443940A CN 201611169435 A CN201611169435 A CN 201611169435A CN 106443940 A CN106443940 A CN 106443940A
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China
Prior art keywords
lens
transconversion
body tube
wave infrared
heat
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Pending
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CN201611169435.4A
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Chinese (zh)
Inventor
刘涛
肖维军
仇力
周阳
林佳丽
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Fujian Forecam Tiantong Optics Co Ltd
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Fujian Forecam Tiantong Optics Co Ltd
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Priority to CN201611169435.4A priority Critical patent/CN106443940A/en
Publication of CN106443940A publication Critical patent/CN106443940A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/028Mountings, adjusting means, or light-tight connections, for optical elements for lenses with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0035Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having three lenses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/009Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/14Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

The invention relates to a high-fog-penetrating-property dual-compensation type optical machine mixed athermalization long-wave infrared vehicle-mounted lens and a compensation method thereof, wherein in an optical system of the high-fog-penetrating-property dual-compensation type optical machine mixed athermalization long-wave infrared vehicle-mounted lens, a positive lens A, a negative lens B and a positive lens C are sequentially arranged in a light ray incidence direction; a structure body of the lens is formed by a connecting seat and a main lens tube; a positive lens A, a negative lens B and a positive lens C are arranged on the inner wall of the main lens tube; the outer side of the main lens tube is fixedly provided with a thermal characteristic sensitive telescopic ring, so that the telescopic ring can drive the main lens cone to move in an axial direction when the temperature changes, and the excursion of a focal plane is compensated; the back end of the main lens tube is provided with an elastic gasket so as to compensate the space change brought by movement of the main lens tube; a position limiting pressing ring is arranged in front of the main lens tube, and is fixed with one end of the telescopic ring so as to avoid the excursion when the telescopic ring drives the main lens tube to move. The lens provided by the invention has the characteristics of compact structure, high transmittance and the like; in optical design, the focal power can be reasonably distributed, and the characteristic of temperature self-adaptation optical machine mixed athermalization is realized. The adaption to a long-wave infrared non-refrigeration type 384*288, 25mu m detector can be realized; practical condition recording and safety protection monitoring tasks can be executed.

Description

High mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens and its benefit Compensation method
Technical field:
The present invention relates to a kind of optical-mechanical mixing no transconversion into heat long wave non-brake method camera lens for document recording monitoring, belong to camera lens Field.
Background technology:
Infrared lens have good in anti-interference performance;Night operating distance is remote;Penetrate flue dust, haze ability strong;Can round-the-clock, whole day When work;There is the observation of multiple target panorama, tracking and target recognition ability and the ability of good anti-target stealth.
But the thermal refractive index coefficient of infrared lens material therefor is larger, under different ambient temperatures, optical material Produce with mechanical material and expand with heat and contract with cold, the refractive index of optical material also can change with temperature, and then makes optical system Optimum image plane deviates, and reduces quality of optical imaging so that image blurring unclear, contrast declines, and finally affects camera lens Imaging performance.
Content of the invention:
It is an object of the invention to overcoming the impact to infrared lens for the temperature, provide a kind of high mist transmitting double compensation formula ray machine mixing No transconversion into heat LONG WAVE INFRARED on-vehicle lens and its compensation method, this high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED car Carry lens construction simple, reasonable in design, it is possible to achieve the no transconversion into heat of the optics of temperature self-adaptation, enable infrared optical system one Good image quality is kept within the scope of individual larger temperature.
The present invention high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens it is characterised in that:Described It is sequentially provided with plus lens A, minus lenses B and plus lens C along light incident direction in the optical system of camera lens;The structure of described camera lens It is made up of connecting seat and body tube in main body, described body tube inwall installs described plus lens A, minus lenses B and plus lens C;Main Fix the expansion ring sensitive equipped with thermal characteristicss outside lens barrel, body tube can be driven to move axially with the expansion ring in temperature change, Compensate the skew of focal plane;Primary mirror tube rear end is provided with elastomeric pad, to compensate the spatial variations that body tube movement brings;Primary mirror Cylinder front setting limited location trim ring, one end of fixing expansion ring, to ensure will not occur partially when expansion ring drive body tube is mobile Move.
Further, the airspace between above-mentioned plus lens A and minus lenses B is 5.5mm, described minus lenses B with just saturating Airspace between mirror C is 3mm.
Further, above-mentioned body tube rear has rear trim ring to fix plus lens C, described plus lens A and minus lenses B, negative thoroughly AB spacer ring, BC spacer ring is had to separate, to limit the distance between lens between mirror B and plus lens C.
Further, the material that above-mentioned plus lens A, minus lenses B and plus lens C use is different, is in IRG206 and ZnSe One kind.
Further, above-mentioned plus lens A, minus lenses B and plus lens C at least uses IRG206 material, at least One uses ZnSe material, when the temperature is changed, causes optical system focal plane to change using the lens of two kinds of different materials Direction is different, and self-adaptive temperature changes, and makes camera lens ensure imaging as matter in a temperature range.
Further, it is machined with the hickey of M33X0.75-6g outside above-mentioned connecting seat, to match with camera.
Further, plus lens A piece S1 face curvature R28, S2 face is plane, and minus lenses B piece S1 face is aspheric surface, and S2 face is bent Rate R20;Plus lens C piece S1 face curvature R45, S2 face is plane, and the optical system that above-mentioned lens set is constituted has reached following skill Art index:(1)Service band:8μm-12μm;(2)Focal length:f′=14.5mm;(3)Detector:LWIR Uncooled type 384 × 288,25 μm;(4)The angle of visual field: 45°;(5)Relative aperture D/ f ':1/0.9.
The compensation method of the present invention high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens, its feature It is:Incident along light in the wherein high mist transmitting double compensation formula ray machine mixing no optical system of transconversion into heat LONG WAVE INFRARED on-vehicle lens Direction is sequentially provided with plus lens A, minus lenses B and plus lens C;By connecting seat and body tube structure on the main structure body of described camera lens Become, described body tube inwall installs described plus lens A, minus lenses B and plus lens C;Outside body tube, fixation is quick equipped with thermal characteristicss The expansion ring of sense, can drive body tube to move axially with the expansion ring in temperature change, compensate the skew of focal plane;After body tube End is provided with elastomeric pad, to compensate the spatial variations that body tube movement brings;In front of body tube, limited location trim ring is set, fixing One end of expansion ring, to ensure will not shift when expansion ring drive body tube is mobile;Compensation method comprises the following steps:
(1)Temperature change causes eyeglass R value to change, and imaging focal plane shifts;
(2)Expansion ring is more sensitive to temperature, drives body tube to move by expanding with heat and contract with cold, compensates Jiao that eyeglass R value changes are brought The skew of plane;
(3)Elastomeric pad is then used for compensating the spatial variations that Mechanical Moving brings it is ensured that camera lens body tube at different temperatures Stability;
(4), respectively using one of IRG206 and ZnSe, the lens of different materials are in temperature change to light path for three lens There are different impacts, after mutually compensating for, realize optics no transconversion into heat;
(5)The no transconversion into heat of above-mentioned optics and machinery no transconversion into heat cooperate, and complete optical-mechanical mixing no transconversion into heat it is ensured that camera lens is one The definition of imaging in individual temperature range.
Further, the optical system that lens set is constituted has reached following technical specification:(1)Service band:8μm-12μ m;(2)Focal length:f′=14.5mm;(3)Detector:384 × 288,25 μm of LWIR Uncooled type;(4)The angle of visual field: 45°; (5)Relative aperture D/ f ':1/0.9.
The optical structure design mistake of the present invention high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens Cheng Zhong, reasonable distribution focal power;Special material expansion ring expands with heat and contract with cold at different temperatures, and band body tube moves, and compensates The image planes drift that temperature change causes;In addition, rationally selling off different principles using different optical material temperature, realize optics no hot Change;Optical-mechanical mixing no transconversion into heat eliminates the impact of temperature by the combination of different qualities material, in interior holding in a big way As matter is stable, realizes the optics no transconversion into heat of temperature self-adaptation, enable infrared optical system within the scope of a larger temperature Keep good image quality.
Compared with prior art, the present invention has with remarkable advantage:(1)Structure is simple, small volume, suitable miniaturization non- Refrigeration infrared optical system uses;(2)There is high imaging resolution;(3)Compact conformation, cost of manufacture is cheap, proper scale Metaplasia is produced;4)On the premise of ensureing compact conformation, adopt a series of measures, improve camera lens vibration resistance, the ability of impact; (5)Body tube adopts integrated design, has good sealing property;Rigidimeter can be carried out in lens construction design Calculate, suitably increase wall thickness, improve natural frequency, the vibration resistance improving camera lens is it is ensured that the use requirement of system;Ensure camera lens Sealing property.(6)Optical-mechanical mixing no transconversion into heat makes material, and deflection reduces at different temperatures, and little side-play amount ensure that The accuracy of no transconversion into heat is so that the imaging effect under different temperatures is more preferable.
The haze-penetrating capability of the on-vehicle lens of the present invention and night identification ability greatly improve drive safety, with infrared one-tenth As the fast development of technology, infrared lens have a wide range of applications in domains such as safety monitoring necks.
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Brief description:
Fig. 1 is the optical system schematic diagram of the embodiment of the present invention.
Fig. 2 is the optical lens structural representation of the embodiment of the present invention;
In figure:The spacing trim ring of 1-, 2- expansion ring, 3- body tube, trim ring after 4-, 5- connecting seat, 6- elastomeric pad, 7-BC spacer ring, 8-AB spacer ring, A- plus lens A, B- minus lenses B, C- plus lens C.
Specific embodiment:
As shown in figure 1, high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens, the optical system of described camera lens In system, along light, incident direction and bottom-up incident direction are sequentially provided with plus lens A, minus lenses B and plus lens C from left to right.
In the present embodiment, along light incident direction, the airspace between described plus lens A and minus lenses B is 5.5mm.Airspace between described minus lenses B and plus lens C is 3mm.
In the present embodiment, compensation adjustment comprises the following steps:
(1)Temperature change causes eyeglass R value to change, and imaging focal plane shifts;
(2)Expansion ring is more sensitive to temperature, drives body tube 3 mobile by expanding with heat and contract with cold, compensates Jiao that eyeglass R value changes are brought The skew of plane;
(3)Elastomeric pad 6 is then used for compensating the spatial variations that Mechanical Moving brings it is ensured that camera lens body tube at different temperatures Stability;
(4), respectively using one of IRG206 and ZnSe, the lens of different materials are in temperature change to light path for three lens There are different impacts, after mutually compensating for, realize optics no transconversion into heat;
(5)The no transconversion into heat of above-mentioned optics and machinery no transconversion into heat cooperate, and complete optical-mechanical mixing no transconversion into heat it is ensured that camera lens is one The definition of imaging in individual temperature range;
In the present embodiment, following technical specification has been reached by the optical system that above-mentioned lens set is constituted:
Service band:8μm-12μm;(2)Focal length:f′=14.5mm;(3)Detector:LWIR Uncooled type 384 × 288,25 μm;(4)The angle of visual field: 45°;(5)Relative aperture D/ f ':1/0.9;The center thickness of plus lens A can be 2.8 mm, minus lenses The center thickness of B can be the center thickness of 5 mm and plus lens C can be 3.2 mm.
Minus lenses B piece S1 face is aspheric surface, and its parameter can be calculated by formula below
In the present embodiment, Tong Guo the flatulence of heat type being provided with for position assurance distance between described connecting seat and body tube is cold The principle of contracting carries out flexible telescoping mechanism group, realizes machinery no transconversion into heat;Combination additionally by different qualities material to eliminate The impact of temperature, keeps stablizing as matter interior in a big way, realizes the optics no transconversion into heat of temperature self-adaptation, make infrared optical system Good image quality can be kept within the scope of a larger temperature;Described stretching structure includes expansion ring 2 and cushion Piece 6.
In the present embodiment, the described compensation elasticity being provided between body tube and connecting seat for compensating displacement Pad 7, described connecting seat devises ridge and the video camera cooperation of M33X0.75-6g.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with Modify, all should belong to the covering scope of the present invention.

Claims (9)

1. a kind of high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens it is characterised in that:Described camera lens Optical system in be sequentially provided with plus lens A, minus lenses B and plus lens C along light incident direction;The main structure body of described camera lens On be made up of connecting seat and body tube, described body tube inwall installs described plus lens A, minus lenses B and plus lens C;Body tube The fixing expansion ring sensitive equipped with thermal characteristicss in outside, can drive body tube to move axially with the expansion ring in temperature change, compensate The skew of focal plane;Primary mirror tube rear end is provided with elastomeric pad, to compensate the spatial variations that body tube movement brings;Before body tube Side's setting limited location trim ring, one end of fixing expansion ring, to ensure will not shift when expansion ring drive body tube is mobile.
2. high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 1, it is special Levy and be:Airspace between described plus lens A and minus lenses B is 5.5mm, the sky between described minus lenses B and plus lens C Gas interval is 3mm.
3. high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 1, it is special Levy and be:Described body tube rear has rear trim ring to fix plus lens C, described plus lens A and minus lenses B, minus lenses B and plus lens AB spacer ring, BC spacer ring is had to separate, to limit the distance between lens between C.
4. high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 1, it is special Levy and be:The material that described plus lens A, minus lenses B use with plus lens C is different, is one of IRG206 and ZnSe.
5. high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 4, it is special Levy and be:Described plus lens A, minus lenses B and plus lens C at least one uses IRG206 material, at least one use ZnSe material, when the temperature is changed, causes the direction that optical system focal plane changes different using the lens of two kinds of different materials, Self-adaptive temperature changes, and makes camera lens ensure imaging as matter in a temperature range.
6. high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 1, it is special Levy and be:It is machined with the hickey of M33X0.75-6g, to match with camera outside described connecting seat.
7. high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 1, it is special Levy and be:Plus lens A piece S1 face curvature R28, S2 face is plane, and minus lenses B piece S1 face is aspheric surface, S2 face curvature R20;Just saturating Mirror C piece S1 face curvature R45, S2 face is plane, and the optical system that above-mentioned lens set is constituted has reached following technical specification:(1) Service band:8μm-12μm;(2)Focal length:f′=14.5mm;(3)Detector:384 × 288,25 μm of LWIR Uncooled type; (4)The angle of visual field: 45°;(5)Relative aperture D/ f ':1/0.9.
8. the compensation method of a kind of high mist transmitting double compensation formula ray machine mixing no transconversion into heat LONG WAVE INFRARED on-vehicle lens, its feature exists In:Along light incidence side in the wherein high mist transmitting double compensation formula ray machine mixing no optical system of transconversion into heat LONG WAVE INFRARED on-vehicle lens To being sequentially provided with plus lens A, minus lenses B and plus lens C;It is made up of connecting seat and body tube on the main structure body of described camera lens, Described body tube inwall installs described plus lens A, minus lenses B and plus lens C;Fix outside body tube equipped with thermal characteristicss sensitivity Expansion ring, can drive body tube to move axially with the expansion ring in temperature change, compensate the skew of focal plane;Primary mirror tube rear end is pacified Equipped with elastomeric pad, to compensate the spatial variations that body tube movement brings;In front of body tube, limited location trim ring is set, fixing flexible One end of ring, to ensure will not shift when expansion ring drive body tube is mobile;Compensation method comprises the following steps:
(1)Temperature change causes eyeglass R value to change, and imaging focal plane shifts;
(2)Expansion ring is more sensitive to temperature, drives body tube to move by expanding with heat and contract with cold, compensates Jiao that eyeglass R value changes are brought The skew of plane;
(3)Elastomeric pad is then used for compensating the spatial variations that Mechanical Moving brings it is ensured that camera lens body tube at different temperatures Stability;
(4), respectively using one of IRG206 and ZnSe, the lens of different materials are in temperature change to light path for three lens There are different impacts, after mutually compensating for, realize optics no transconversion into heat;
(5)The no transconversion into heat of above-mentioned optics and machinery no transconversion into heat cooperate, and complete optical-mechanical mixing no transconversion into heat it is ensured that camera lens is one The definition of imaging in individual temperature range.
9. high mist transmitting double compensation formula ray machine mixes the compensation side of no transconversion into heat LONG WAVE INFRARED on-vehicle lens according to claim 8 Method it is characterised in that:The optical system that lens set is constituted has reached following technical specification:(1)Service band:8μm-12μm; (2)Focal length:f′=14.5mm;(3)Detector:384 × 288,25 μm of LWIR Uncooled type;(4)The angle of visual field: 45°;(5) Relative aperture D/ f ':1/0.9.
CN201611169435.4A 2016-12-16 2016-12-16 High-fog-penetrating-property dual-compensation type optical machinery mixed athermalization long-wave infrared vehicle-mounted lens and compensation method thereof Pending CN106443940A (en)

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Cited By (7)

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CN106443982A (en) * 2016-12-16 2017-02-22 福建福光天瞳光学有限公司 Standard optical athermalization lens and making method thereof
WO2018227787A1 (en) * 2017-06-15 2018-12-20 深圳市光峰光电技术有限公司 Lens module, light source system and projection device
CN109521542A (en) * 2018-12-28 2019-03-26 福建福光天瞳光学有限公司 The economical low distortion LONG WAVE INFRARED optics of one kind is without thermalization camera lens and its assembly method
CN110531505A (en) * 2019-10-29 2019-12-03 江西联创电子有限公司 Infrared optics imaging lens and imaging device
CN111999840A (en) * 2020-07-24 2020-11-27 北京空间机电研究所 Focal plane structure with focal length compensation capability
CN112394469A (en) * 2020-12-01 2021-02-23 天津津航技术物理研究所 High-precision mechanical passive athermalization all-silicon lens
CN114236784A (en) * 2021-12-14 2022-03-25 安徽光智科技有限公司 Electric focusing infrared lens with focal length of 75mm

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CN105487193A (en) * 2016-01-29 2016-04-13 福建福光股份有限公司 F19mm large relative aperture mechanical passive type athermalized lens and compensation adjusting method
CN106125264A (en) * 2016-08-29 2016-11-16 福建福光天瞳光学有限公司 The ultra-high sensitive degree type medium wave infrared camera lens without transconversion into heat of refrigeration and method of work thereof
CN106154505A (en) * 2016-08-22 2016-11-23 福建福光天瞳光学有限公司 A kind of LONG WAVE INFRARED machinery passive type is without transconversion into heat on-vehicle lens and installation method thereof
CN206311816U (en) * 2016-12-16 2017-07-07 福建福光天瞳光学有限公司 Mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens

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CN105353489A (en) * 2015-12-14 2016-02-24 福建福光股份有限公司 f35mm mechanical passive-type athermalization lens and assembly method therefor
CN105487193A (en) * 2016-01-29 2016-04-13 福建福光股份有限公司 F19mm large relative aperture mechanical passive type athermalized lens and compensation adjusting method
CN106154505A (en) * 2016-08-22 2016-11-23 福建福光天瞳光学有限公司 A kind of LONG WAVE INFRARED machinery passive type is without transconversion into heat on-vehicle lens and installation method thereof
CN106125264A (en) * 2016-08-29 2016-11-16 福建福光天瞳光学有限公司 The ultra-high sensitive degree type medium wave infrared camera lens without transconversion into heat of refrigeration and method of work thereof
CN206311816U (en) * 2016-12-16 2017-07-07 福建福光天瞳光学有限公司 Mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106443982A (en) * 2016-12-16 2017-02-22 福建福光天瞳光学有限公司 Standard optical athermalization lens and making method thereof
WO2018227787A1 (en) * 2017-06-15 2018-12-20 深圳市光峰光电技术有限公司 Lens module, light source system and projection device
CN109521542A (en) * 2018-12-28 2019-03-26 福建福光天瞳光学有限公司 The economical low distortion LONG WAVE INFRARED optics of one kind is without thermalization camera lens and its assembly method
CN109521542B (en) * 2018-12-28 2023-11-14 福建福光天瞳光学有限公司 Economical low-distortion long-wave infrared optical athermalization lens and assembly method thereof
CN110531505A (en) * 2019-10-29 2019-12-03 江西联创电子有限公司 Infrared optics imaging lens and imaging device
CN110531505B (en) * 2019-10-29 2020-02-28 江西联创电子有限公司 Infrared optical imaging lens and imaging device
CN111999840A (en) * 2020-07-24 2020-11-27 北京空间机电研究所 Focal plane structure with focal length compensation capability
CN112394469A (en) * 2020-12-01 2021-02-23 天津津航技术物理研究所 High-precision mechanical passive athermalization all-silicon lens
CN112394469B (en) * 2020-12-01 2023-03-10 天津津航技术物理研究所 High-precision mechanical passive athermalization all-silicon lens
CN114236784A (en) * 2021-12-14 2022-03-25 安徽光智科技有限公司 Electric focusing infrared lens with focal length of 75mm
CN114236784B (en) * 2021-12-14 2023-02-28 安徽光智科技有限公司 Electric focusing infrared lens with focal length of 75mm

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Application publication date: 20170222