Light and small uncooled long-wave infrared dual-field lens and imaging method thereof
A long-wave infrared, non-cooling technology, applied in the field of optical systems, can solve the problems that cannot meet the requirements of light and small size, increase the size and weight of the system, and increase the weight of mechanical parts, so as to facilitate miniaturization, reduce complexity, and improve image quality. qualitative effect
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[0025] In order to make the above-mentioned features and advantages of the present invention more simple and understandable, the following specific embodiments are given in conjunction with the accompanying drawings, and detailed descriptions are made as follows, but the present invention is not limited thereto.
[0026] reference Figure 1-Figure 8 .
[0027] In a preferred embodiment of the present invention: a light and small uncooled long-wave infrared dual field of view lens, comprising a front fixed group with positive power, a zoom group with negative power and Positive refractive power rear fixed group, the front fixed group includes a first meniscus positive lens, the variable magnification group includes a double concave negative lens, and the rear fixed group includes a plano-convex positive lens and a meniscus negative lens arranged in sequence Positive lens with second meniscus. The convex surface of the first positive meniscus lens faces the object, the convex surfa...
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