CN209343024U - LONG WAVE INFRARED optics is without thermalization camera lens - Google Patents
LONG WAVE INFRARED optics is without thermalization camera lens Download PDFInfo
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- CN209343024U CN209343024U CN201822233058.7U CN201822233058U CN209343024U CN 209343024 U CN209343024 U CN 209343024U CN 201822233058 U CN201822233058 U CN 201822233058U CN 209343024 U CN209343024 U CN 209343024U
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- lens
- negative lens
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- long wave
- wave infrared
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Abstract
The utility model relates to a kind of LONG WAVE INFRARED optics without thermalization camera lens, along light, incident direction is disposed with negative lens A from left to right in lens barrel, diaphragm, negative lens B, positive lens C, airspace between negative lens A and negative lens B is 3.9mm, airspace between negative lens B and positive lens C is 0.2mm, the negative lens A, negative lens B, positive lens C is mounted on lens barrel inner wall, preceding pressing ring is provided on front side of negative lens A, AB spacer ring is equipped between negative lens A and negative lens B, feeding spaced papers, BC spacer ring is equipped between negative lens B and positive lens C, this camera lens tool can manual focusing, IP67 waterproof can be passed through, it sees as range is wide, optics is without thermalization, it can be with LWIR Uncooled 384 × 288, 17 μm of detector adaptations, carry out document recording and monitor task, it is applicable in Range is wide, is suitble to large-scale production.
Description
Technical field
The utility model relates to a kind of LONG WAVE INFRARED optics without thermalization camera lens.
Background technique
With the continuous development of uncooled detector technology and increasingly mature, LWIR Uncooled Optical System is military
It is widely used with civil field, because infrared lens have good in anti-interference performance；Night operating distance is remote；It penetrates
Flue dust, haze ability are strong；It can round-the-clock, round-the-clock work；With the observation of multiple target panorama, tracking and target identification ability and good
The advantages that ability of good anti-target stealth, so the image quality to optical system proposes increasingly higher demands.But by
In infrared optical material and mechanical material there are certain fuel factor, the acute variation of operating temperature can generate optical system tight
The influence of weight, such as cause focal length variations, image planes drift, image quality decline etc..Therefore, in order to adapt to varying environment temperature,
It is required that infrared lens have certain temperature self-adaptation ability；And under long lasting for continuous monitoring left and right, more require
Infrared lens have the characteristics that adapt to different weather climatic condition on a large scale, therefore also want mirror in prolonged monitoring
Head has the features such as high resolution, mist transmitting is strong, aberration rate is low, features simple structure, intensity is reliable, stability is strong.It is not strong by battlefield
Light, flash of light are interfered and blinding, may be implemented at a distance, round-the-clock observation is particularly suitable under night and bad-weather condition
Target acquisition.
Summary of the invention
In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a kind of LONG WAVE INFRARED optics
Without thermalization camera lens.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of LONG WAVE INFRARED optics is without thermalization mirror
Head, including lens barrel, lens barrel is interior, and along light, incident direction is disposed with negative lens A, diaphragm, negative lens B, positive lens from left to right
C, the airspace between negative lens A and negative lens B are 3.9mm, and the airspace between negative lens B and positive lens C is
0.2mm。
Further, the negative lens A, negative lens B, positive lens C are mounted on lens barrel inner wall, setting on front side of negative lens A
Have preceding pressing ring, between negative lens A and negative lens B be equipped with AB spacer ring, feeding spaced papers, between negative lens B and positive lens C be equipped with BC every
Circle.
Further, lens barrel rear sleeve is equipped with the outer cover being threadedly coupled with it, can complete whole group mirror by rotating lens barrel
The focusing of head.
Further, setting ring in lens barrel rear portion periphery sets seal groove, and seal groove is between lens barrel and outer cover, sealing
Waterproof grommet is provided in ring recess.
Further, negative lens A, negative lens B, positive lens C material be respectively chalcogenide glass, zinc selenide, chalcogenide glass.
Compared with prior art, the utility model has the following beneficial effects: which has a compact structure and a reasonable design, high transmittance,
Energy manual focusing, optics can be adapted to 384 × 288,17 μm of detectors of LWIR Uncooled without thermalization, carry out live note
Record and monitor task, it is applied widely, it is suitble to large-scale production.
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the optical system structure schematic diagram of the camera lens；
Fig. 2 is camera lens mechanical structure schematic diagram.
In figure:
Pressing ring before 1-, 2-AB spacer ring, 3- waterproof grommet, 4-BC spacer ring, 5- outer cover, 6- positive lens C, 7- negative lens B, 8-
Feeding spaced papers, 9- negative lens A, 10- lens barrel.
Specific embodiment
In order to make the above-mentioned features and advantages of the utility model more obvious and understandable, special embodiment below, and cooperate attached drawing,
It is described in detail below.
As shown in Figs. 1-2, a kind of LONG WAVE INFRARED optics is without thermalization camera lens, including lens barrel, in lens barrel from left to right along light
Incident direction is disposed with negative lens A, diaphragm, negative lens B, positive lens C, the airspace between negative lens A and negative lens B
It is 3.9mm, the airspace between negative lens B and positive lens C is 0.2mm.
This camera lens tool can manual focusing, can by IP67 waterproof, see as range is wide, optics is without thermalization, can be red with long wave
384 × 288,17 μm of detector adaptations of outer non-brake method, carry out document recording and monitor task, applied widely, are suitble to scale
Production.
In this implementation, the negative lens A, negative lens B, positive lens C are mounted on lens barrel inner wall, on front side of negative lens A
It is provided with preceding pressing ring, AB spacer ring, feeding spaced papers are equipped between negative lens A and negative lens B, BC is equipped between negative lens B and positive lens C
Spacer ring, stop position is between negative lens A and negative lens B, in order to guarantee to block the accuracy of light, between increasing below AB spacer ring
Every paper.
In this implementation, lens barrel rear sleeve is equipped with the outer cover being threadedly coupled with it, can be completed by rotation lens barrel whole
The focusing of group camera lens increases the use scope of camera lens to meet the detection to different object distances.
In this implementation, lens barrel rear portion periphery setting ring set seal groove, seal groove between lens barrel and outer cover,
It is provided with waterproof grommet in seal groove, ensure that the waterproof of whole group camera lens while guaranteeing to focus feel.
In this implementation, negative lens A, negative lens B, positive lens C material be respectively chalcogenide glass, zinc selenide, sulphur system
Glass, optical system can compensate image plane offset caused by the temperature difference automatically when temperature change.
When assembly, first by positive lens C, BC spacer ring, negative lens B, feeding spaced papers, AB spacer ring, negative lens A, group enters lens barrel in order
In, negative lens A is fixed with preceding pressing ring in front end, waterproof grommet is then placed in the seal groove of lens barrel, finally by body tube
It is spirally connected with outer cover.
Assembly advantageously ensures that the air between negative lens A and negative lens B, negative lens B and positive lens C away from raising in this way
Yields is assembled, feeding spaced papers ensure that the accuracy for blocking light, reduce influence of the stray light to imaging.Manual focusing makes making for camera lens
There is bigger guarantee with range, detection range.Body tube and the preceding pressing ring place's of being threadedly engaged point infuse shellac, and the method facilitates
The vibration resistance and impact resistance of optical lens part are improved, the anti-seismic performance of whole camera lens is improved.Between body tube and outer cover
There is design waterproof grommet, also improves the feel of focusing while guaranteeing waterproof.In addition, optics makes mirror without thermalized design
Head is adapted to the difference variation of use environment, and by the different variation of each storeroom expansion and contraction, the spontaneous compensation temperature difference is brought
Image plane offset, guarantee at different temperatures imaging can be clear, do not run coke.
In the present embodiment, this lens optical index is as follows:
Service band: 8 μm -12 μm；
Focal length: f '=14mm；
Detector: 384 × 288,17 μm of LWIR Uncooled type；
Field angle: 38 °；
Relative aperture D/ f ': 1/1.
Each eyeglass design parameter is as follows:
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the patents it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (5)
1. a kind of LONG WAVE INFRARED optics is without thermalization camera lens, including lens barrel, it is characterised in that: incident from left to right along light in lens barrel
Direction is disposed with negative lens A, diaphragm, negative lens B, positive lens C, and the airspace between negative lens A and negative lens B is
3.9mm, the airspace between negative lens B and positive lens C are 0.2mm.
2. LONG WAVE INFRARED optics according to claim 1 is without thermalization camera lens, it is characterised in that: the negative lens A, negative lens
B, positive lens C is mounted on lens barrel inner wall, is provided with preceding pressing ring on front side of negative lens A, and AB is equipped between negative lens A and negative lens B
Spacer ring, feeding spaced papers are equipped with BC spacer ring between negative lens B and positive lens C.
3. LONG WAVE INFRARED optics according to claim 2 is without thermalization camera lens, it is characterised in that: lens barrel rear sleeve is equipped with and it
The outer cover of threaded connection can complete the focusing of whole group camera lens by rotating lens barrel.
4. LONG WAVE INFRARED optics according to claim 3 is without thermalization camera lens, it is characterised in that: ring is arranged in lens barrel rear portion periphery
If seal groove, seal groove is provided with waterproof grommet between lens barrel and outer cover in seal groove.
5. LONG WAVE INFRARED optics according to claim 1 is without thermalization camera lens, it is characterised in that: negative lens A, negative lens B, just
The material of lens C is respectively chalcogenide glass, zinc selenide, chalcogenide glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822233058.7U CN209343024U (en) | 2018-12-28 | 2018-12-28 | LONG WAVE INFRARED optics is without thermalization camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822233058.7U CN209343024U (en) | 2018-12-28 | 2018-12-28 | LONG WAVE INFRARED optics is without thermalization camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209343024U true CN209343024U (en) | 2019-09-03 |
Family
ID=67759782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822233058.7U Active CN209343024U (en) | 2018-12-28 | 2018-12-28 | LONG WAVE INFRARED optics is without thermalization camera lens |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471246A (en) * | 2018-12-28 | 2019-03-15 | 福建福光天瞳光学有限公司 | LONG WAVE INFRARED optics is without thermalization camera lens and assembly method |
| CN113970827A (en) * | 2021-11-05 | 2022-01-25 | 浙江舜宇光学有限公司 | Lens barrel |
-
2018
- 2018-12-28 CN CN201822233058.7U patent/CN209343024U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471246A (en) * | 2018-12-28 | 2019-03-15 | 福建福光天瞳光学有限公司 | LONG WAVE INFRARED optics is without thermalization camera lens and assembly method |
| CN109471246B (en) * | 2018-12-28 | 2024-03-05 | 福建福光天瞳光学有限公司 | Long-wave infrared optical athermalized lens and assembly method |
| CN113970827A (en) * | 2021-11-05 | 2022-01-25 | 浙江舜宇光学有限公司 | Lens barrel |
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