Ultra-wide-angle high resolution day and night dual-purpose camera lens
A high-resolution, camera lens technology, applied in installation, optics, instruments, etc., can solve problems such as insufficient technical performance and restrict the performance of camera systems, and achieve the effect of eliminating stray light, wide-spectrum confocal, and high resolution
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[0020] An ultra-wide-angle high-resolution day-night camera lens, characterized in that: along the optical path from left to right, the front group (A) with negative focal power and the rear group (B) with positive focal power are arranged respectively along the incident direction , the front group (A) includes a negative crescent lens (A-1) and a negative crescent lens (A-2), and the rear group (B) includes a biconvex lens (B-1), a biconvex lens (B- 2) and a double-convex lens (B-3) and a negative crescent lens (B-4) in close contact with each other, the diaphragm C is located between the double-convex lens (B-1) and the double-convex lens (B-2).
[0021] The air gap between the front group (A) and the rear group (B) is 8.100 mm, the negative crescent lens (A-1) and the negative crescent lens (A-2) in the front group (A) The air gap between the two-convex lens (B-1) and the diaphragm (C) in the rear group (B) is 7.657mm, and the diaphragm (C) and the bi-convex lens (B) -2) T...
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