Low-distortion and high-resolution infrared miniature lens
A high-resolution, micro-lens technology, applied in optical components, optics, instruments, etc., can solve problems such as low performance indicators, and achieve the effect of light weight, compact structure and accurate precision
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[0014] Such as figure 1 As shown, a low-distortion high-resolution infrared micro-lens, the optical system of the lens is provided with a front group A with a negative focal power, an iris diaphragm C and an optical focal length in sequence along the incident direction of the light from left to right. The rear group B with a positive degree, the front group A is sequentially provided with a positive crescent lens A-1, a negative crescent lens A-2, a negative crescent lens A-3, and a biconvex lens A-4 and a biconcave lens A-5. The first cemented group, the rear group B is sequentially provided with a biconvex lens B-1, a second cemented group made of a biconvex lens B-2 and a biconcave lens B-3, and a biconvex lens B-4.
[0015] In this embodiment, the air gap between the front group A and the rear group B is 1.09 mm; the air gap between the positive crescent lens A-1 and the negative crescent lens A-2 in the front group A is 0.105mm, the air interval between the negative cres...
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