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Super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens

An infrared optics and anti-glare technology, applied in the field of optical lenses, can solve problems such as reducing optical imaging quality, affecting lens imaging performance, and blurring images, achieving optical athermalization, improving driving safety, and high resolution Effect

Inactive Publication Date: 2017-02-22
FUJIAN FUGUANG TIANTONG OPTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the temperature coefficient of the refractive index of the material used in the infrared lens is large. Under different ambient temperatures, the optical material and the mechanical material will expand with heat and contract with cold, and the refractive index of the optical material will also change with the temperature. The deviation of the best image plane reduces the optical imaging quality, makes the image blurred and the contrast decreases, and finally affects the imaging performance of the lens

Method used

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  • Super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens
  • Super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens
  • Super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens

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Embodiment Construction

[0017] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows, but the present invention is not limited thereto.

[0018] reference Figure 1 to Figure 3

[0019] An ultra-long vision distance anti-glare interference long-wave infrared optical athermalized vehicle-mounted lens, comprising a main lens barrel 4 and an optical system arranged in the main lens barrel. The optical system includes negative crescents arranged in sequence from front to back along the light incident direction Lens A, a positive crescent lens B and a double convex lens C, the rear end of the main lens barrel is provided with a back pressure ring 2 for pressing on the periphery of the rear side of the double convex lens, so that the negative crescent lens A, the positive crescent lens The lens B and the biconvex lens C are pressed in the ...

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Abstract

The invention relates to the field of optical lenses, and particularly relates to a super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens. The automotive lens comprises a main lens cone and an optical system arranged in the main lens cone, wherein the optical system comprises a negative crescent lens, a positive crescent lens and a biconvex lens which are sequentially arranged along the light incidence direction from front to back; and a rear clamping ring is arranged at the rear end of the main lens cone and is used for pressing the periphery of the rear side of the biconvex lens. The automotive lens has a simple structure and has certain temperature adaptability.

Description

Technical field [0001] The invention relates to the field of optical lenses, in particular to a super long visual distance anti-glare interference long-wave infrared optical athermalized vehicle-mounted lens. Background technique [0002] Infrared lens has good anti-interference performance; long working distance at night; strong ability to penetrate smoke, dust and haze; can work all-weather and all-day; multi-target panoramic observation, tracking and target recognition capabilities and good anti-target stealth capabilities, etc. advantage. However, the temperature coefficient of the refractive index of the material used in the infrared lens is large. Under different ambient temperatures, the optical materials and mechanical materials will expand and contract with heat, and the refractive index of the optical materials will also change with temperature. The deviation of the good image plane reduces the optical imaging quality, makes the image blurry, the contrast decreases, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02G02B13/00G02B13/14G02B13/18
CPCG02B7/02G02B13/0035G02B13/14G02B13/18
Inventor 刘涛何武强郑勇强周阳黄志杰
Owner FUJIAN FUGUANG TIANTONG OPTICS
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