Small-target-surface high-resolution ultra-wide field fish-eye lens
A high-resolution, wide-angle fish technology, applied in optical components, optics, instruments, etc., can solve the problems of large field of view and close-up distance, great differences in performance indicators, and large application limitations. Spectral confocal, compact structure, clear imaging effect
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings.
[0021] Such as figure 1 As shown, a small target surface high-resolution ultra-wide-angle fisheye lens, the optical system of the lens is provided with a front group A and a rear group B of lens groups in sequence along the incident direction of light from left to right, and the front group A There is a diaphragm C between the rear group B, and the front group A includes a negative crescent lens A-1 (1), a negative crescent lens A-2 (2), and a biconcave lens A arranged in sequence from left to right. -3(3) and biconvex lens A-4(4); the rear group B includes biconvex lens B-1(5), biconvex lens B-2(6) and negative crescent lens B arranged in sequence from left to right -3(7) close-fitting cemented groups and bi-convex lenses B-4(8).
[0022] In this embodiment...
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