CN206311816U - Mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens - Google Patents
Mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens Download PDFInfo
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- CN206311816U CN206311816U CN201621385791.5U CN201621385791U CN206311816U CN 206311816 U CN206311816 U CN 206311816U CN 201621385791 U CN201621385791 U CN 201621385791U CN 206311816 U CN206311816 U CN 206311816U
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Abstract
The utility model is related to a kind of mist transmitting double compensation formula ray machine mixing high without thermalization LONG WAVE INFRARED on-vehicle lens, wherein being sequentially provided with positive lens A, negative lens B and positive lens C along light incident direction in mist transmitting double compensation formula ray machine high optical system of the mixing without thermalization LONG WAVE INFRARED on-vehicle lens；It is made up of connecting seat and body tube on the main structure body of the camera lens, the body tube inwall installs the positive lens A, negative lens B and positive lens C；The fixed expansion ring sensitive equipped with thermal characteristics in body tube 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 moving belt comes；Body tube front sets limited location trim ring, one end of fixed expansion ring, to ensure to be shifted when expansion ring drives body tube to move.The features such as the utility model has compact conformation and high transmittance；In optical design, reasonable distribution focal power realizes that the optical-mechanical of temperature self-adaptation mixes without thermalization feature.Document recording and safety monitoring task can be performed with 384 × 288,25 μm of detector adaptations of LWIR Uncooled type.
Description
Technical field：
The utility model is related to a kind of optical-mechanical for document recording monitoring to mix without thermalization long wave non-brake method camera lens,
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 it is round-the-clock,
Round-the-clock works；It is excellent with the observation of multiple target panorama, tracking and target identification ability and the stealthy ability of good anti-target etc.
Point.
But the thermal refractive index coefficient of infrared lens material therefor is larger, under different environment temperatures, optical material
Produced with mechanical material and expanded with heat and contract with cold, the refractive index of optical material can also change with temperature, and then make optical system
Optimum image plane deviates, and reduces quality of optical imaging so that image blurring unclear, and contrast declines, and finally influences camera lens
Imaging performance.
The content of the invention：
The purpose of this utility model is the influence for overcoming temperature to infrared lens, there is provided a kind of mist transmitting double compensation formula high
Ray machine mixes without thermalization LONG WAVE INFRARED on-vehicle lens, and the mist transmitting double compensation formula ray machine mixing high is without the vehicle-mounted mirror of thermalization LONG WAVE INFRARED
Header structure is simple, reasonable in design, it is possible to achieve the optics of temperature self-adaptation without thermalization, enable infrared optical system one compared with
Good image quality is kept within the scope of big temperature.
The utility model mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens, it is characterised in that：
In the optical system of the camera lens positive lens A, negative lens B and positive lens C are sequentially provided with along light incident direction；The camera lens
It is made up of connecting seat and body tube on main structure body, the body tube inwall installs the positive lens A, negative lens B and positive lens
C；The fixed expansion ring sensitive equipped with thermal characteristics in body tube outside, can drive body tube axially to move with the expansion ring in temperature change
It is dynamic, compensate the skew of focal plane；Primary mirror tube rear end is provided with elastomeric pad, to compensate the spatial variations that body tube moving belt comes；
Body tube front sets limited location trim ring, one end of fixed expansion ring, to ensure to be sent out when expansion ring drives body tube to move
Raw skew.
Further, the airspace between above-mentioned positive lens A and negative lens B is 5.5mm, the negative lens B with it is just saturating
Airspace between mirror C is 3mm.
Further, above-mentioned body tube rear has rear trim ring to fix positive lens C, the positive lens A and negative lens B, bear thoroughly
There are AB spacer rings, BC spacer rings to separate between mirror B and positive lens C, to limit the distance between lens.
Further, above-mentioned positive lens A, negative lens B are different with the material that positive lens C is used, in being IRG206 and ZnSe
One kind.
Further, above-mentioned positive lens A, negative lens B and positive lens C at least one use IRG206 materials, at least
One uses ZnSe materials, when the temperature is changed, causes what optical system focal plane changed using the lens of two kinds of different materials
Direction is different, self-adaptive temperature change, makes camera lens ensure imaging as matter in a temperature range.
Further, above-mentioned connecting seat outside is machined with the hickey of M33X0.75-6g, matches with camera.
Further, positive lens A pieces S1 face curvatures R28, S2 faces are plane, and negative lens B piece S1 faces are aspherical, and S2 faces are bent
Rate R20；Positive lens C piece S1 face curvatures R45, S2 faces are 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 utility model compensation method of the mist transmitting double compensation formula ray machine mixing without thermalization LONG WAVE INFRARED on-vehicle lens high, its
In middle optical system of the mist transmitting double compensation formula ray machine high mixing without thermalization LONG WAVE INFRARED on-vehicle lens along light incident direction according to
It is secondary to be provided with positive lens A, negative lens B and positive lens C；It is made up of connecting seat and body tube on the main structure body of the camera lens, it is described
Body tube inwall installs the positive lens A, negative lens B and positive lens C；Body tube outside is fixed equipped with the flexible of thermal characteristics sensitivity
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 provided with
Elastomeric pad, to compensate the spatial variations that body tube moving belt comes；Body tube front sets limited location trim ring, fixed expansion ring
One end, to ensure to be shifted when expansion ring drives body tube to move；Compensation method is comprised the following steps：
（1）Temperature change causes eyeglass R values 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, and compensation eyeglass R value changes are brought
Focal plane skew；
（3）Elastomeric pad is then used to compensate the spatial variations that Mechanical Moving brings, it is ensured that camera lens primary mirror at different temperatures
The stability of cylinder；
（4）, respectively using the one kind in IRG206 and ZnSe, the lens of different materials are in temperature change pair for three lens
Light path has different influences, realizes optics without thermalization after mutually compensating for；
（5）Above-mentioned optics cooperates without thermalization and machinery without thermalization, completes optical-mechanical mixing without thermalization, it is ensured that camera lens
The definition being imaged in a temperature range.
Further, the optical system that lens set is constituted has reached following technical indicator：（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 utility model mechanical-optical setup of the mist transmitting double compensation formula ray machine mixing without thermalization LONG WAVE INFRARED on-vehicle lens high sets
During meter, reasonable distribution focal power；Special material expansion ring expands with heat and contract with cold at different temperatures, band body tube movement,
The image planes drift that compensation temperature change triggers；In addition, rationally selling off different principles using different optical material temperature, optics is realized
Without thermalization；Optical-mechanical mixing eliminates the influence of temperature without thermalization by the combination of different qualities material, interior in a big way
Keep, as matter stabilization, realizing that the optics of temperature self-adaptation, without thermalization, enables infrared optical system in a larger temperature model
Enclose the good image quality of interior holding.
Compared with prior art, the utility model has with remarkable advantage：（1）Simple structure, small volume is adapted to miniaturization
Uncooled ir optical system use；（2）With imaging resolution high；（3）Compact conformation, cost of manufacture is cheap, suitably
Large-scale production；4）On the premise of compact conformation is ensured, adopt a series of measures, improve camera lens vibration resistance, the energy of impact
Power；（5）Body tube uses integrated design, with good sealing property；Rigidity can have been carried out in lens construction design
Calculate, suitably increase wall thickness, improve intrinsic frequency, improve the vibration resistance of camera lens, it is ensured that the use requirement of system；Ensure camera lens
Sealing property.（6）Optical-mechanical mixing causes that deflection reduces material at different temperatures without thermalization, and small side-play amount ensures
Accuracy without thermalization so that the imaging effect under different temperatures is more preferable.
The haze-penetrating capability and night recognition capability of on-vehicle lens of the present utility model greatly improve drive safety, with red
The fast development of outer imaging technique, infrared lens have a wide range of applications in domains such as safety monitoring necks.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings：
Fig. 1 is the optical system schematic diagram of the utility model embodiment.
Fig. 2 is the optical lens structural representation of the utility model embodiment；
In figure：The spacing trim rings of 1-, 2- expansion rings, 3- body tubes, trim ring after 4-, 5- connecting seats, 6- elastomeric pads, 7-BC every
Circle, 8-AB spacer rings, A- positive lens A, B- negative lens B, C- positive lens C.
Specific embodiment：
As shown in figure 1, mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens, the light of the camera lens
Along light, incident direction and bottom-up incident direction are sequentially provided with positive lens A, negative lens B and just saturating from left to right in system
Mirror C.
In the present embodiment, along light incident direction, the airspace between the positive lens A and negative lens B is
5.5mm.Airspace between the negative lens B and positive lens C is 3mm.
In the present embodiment, compensation adjustment is comprised the following steps：
（1）Temperature change causes eyeglass R values to change, and imaging focal plane shifts；
（2）Expansion ring is more sensitive to temperature, drives body tube 3 to move by expanding with heat and contract with cold, and compensation eyeglass R value changes are brought
Focal plane skew；
（3）Elastomeric pad 6 is then used to compensate the spatial variations that Mechanical Moving brings, it is ensured that camera lens primary mirror at different temperatures
The stability of cylinder；
（4）, respectively using the one kind in IRG206 and ZnSe, the lens of different materials are in temperature change pair for three lens
Light path has different influences, realizes optics without thermalization after mutually compensating for；
（5）Above-mentioned optics cooperates without thermalization and machinery without thermalization, completes optical-mechanical mixing without thermalization, it is ensured that camera lens
The definition being imaged in a temperature range；
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following technical indicator：
（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 center thickness of positive lens A can be 2.8
Mm, the center thickness of negative lens B can be that the center thickness of 5 mm and positive lens C can be 3.2 mm.
In the present embodiment, be provided between the connecting seat and body tube for position assurance distance can be by heat expansion
The principle of shrinkage carries out flexible telescoping mechanism group, realizes machinery without thermalization；Disappear additionally by the combination of different qualities material
Except the influence of temperature, keep, as matter stabilization, realizing that the optics of temperature self-adaptation, without thermalization, makes infrared optics system interior in a big way
System can keep good image quality within the scope of a larger temperature；The stretching structure includes expansion ring 2 and elasticity
Pad 6.
In the present embodiment, the compensation elasticity being provided between body tube and connecting seat for compensating displacement
Pad 7, the ridge and video camera that the connecting seat devises M33X0.75-6g coordinates.
The foregoing is only preferred embodiment of the present utility model, it is all according to present utility model application the scope of the claims done it is equal
Deng change and modification, should all belong to covering scope of the present utility model.
Claims (7)
1. a kind of mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens, it is characterised in that：The camera lens
Optical system in be sequentially provided with positive lens A, negative lens B and positive lens C along light incident direction；The main structure body of the camera lens
On be made up of connecting seat and body tube, the body tube inwall installs the positive lens A, negative lens B and positive lens C；Body tube
Outside is fixed equipped with the sensitive expansion ring of thermal characteristics, with the expansion ring in temperature change body tube can be driven to move axially, and compensates
The skew of focal plane；Primary mirror tube rear end is provided with elastomeric pad, to compensate the spatial variations that body tube moving belt comes；Before body tube
Side sets limited location trim ring, one end of fixed expansion ring, to ensure to be shifted when expansion ring drives body tube to move.
2. mist transmitting double compensation formula ray machine mixing high according to claim 1 is without thermalization LONG WAVE INFRARED on-vehicle lens, and it is special
Levy and be：Airspace between the positive lens A and negative lens B is 5.5mm, the sky between the negative lens B and positive lens C
Gas interval is 3mm.
3. mist transmitting double compensation formula ray machine mixing high according to claim 1 is without thermalization LONG WAVE INFRARED on-vehicle lens, and it is special
Levy and be：The body tube rear has rear trim ring to fix positive lens C, the positive lens A and negative lens B, negative lens B and positive lens
There are AB spacer rings, BC spacer rings to separate between C, to limit the distance between lens.
4. mist transmitting double compensation formula ray machine mixing high according to claim 1 is without thermalization LONG WAVE INFRARED on-vehicle lens, and it is special
Levy and be：The positive lens A, negative lens B are different with the material that positive lens C is used, and are the one kind in IRG206 and ZnSe.
5. mist transmitting double compensation formula ray machine mixing high according to claim 4 is without thermalization LONG WAVE INFRARED on-vehicle lens, and it is special
Levy and be：At least one uses IRG206 materials for the positive lens A, negative lens B and positive lens C, and at least one is used
ZnSe materials, when the temperature is changed, cause 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. mist transmitting double compensation formula ray machine mixing high according to claim 1 is without thermalization LONG WAVE INFRARED on-vehicle lens, and it is special
Levy and be：The connecting seat outside is machined with the hickey of M33X0.75-6g, matches with camera.
7. mist transmitting double compensation formula ray machine mixing high according to claim 1 is without thermalization LONG WAVE INFRARED on-vehicle lens, and it is special
Levy and be：Positive lens A piece S1 face curvatures R28, S2 faces are plane, and negative lens B piece S1 faces are aspherical, S2 face curvatures R20；It is just saturating
Mirror C piece S1 face curvatures R45, S2 faces are plane, and the optical system that above-mentioned lens set is constituted has reached following technical indicator：（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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621385791.5U CN206311816U (en) | 2016-12-16 | 2016-12-16 | Mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621385791.5U CN206311816U (en) | 2016-12-16 | 2016-12-16 | Mist transmitting double compensation formula ray machine mixing high is without thermalization LONG WAVE INFRARED on-vehicle lens |
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| CN206311816U true CN206311816U (en) | 2017-07-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443940A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | High-fog-penetrating-property dual-compensation type optical machinery mixed athermalization long-wave infrared vehicle-mounted lens and compensation method thereof |
| CN107450145A (en) * | 2016-06-01 | 2017-12-08 | 佳能株式会社 | Lens devices and the image pick-up device including lens devices |
-
2016
- 2016-12-16 CN CN201621385791.5U patent/CN206311816U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450145A (en) * | 2016-06-01 | 2017-12-08 | 佳能株式会社 | Lens devices and the image pick-up device including lens devices |
| CN106443940A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | High-fog-penetrating-property dual-compensation type optical machinery mixed athermalization long-wave infrared vehicle-mounted lens and compensation method thereof |
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