Electrical zooming and focusing six million-pixel day and night dual-purpose lens
A lens and pixel technology, applied in the direction of focusing devices, focusing devices, camera focusing devices, etc., can solve the problems of low cost performance, inability to achieve fast zoom, and insufficient precision of electric zoom lenses, and achieve compact structure and short structural length , Accurate effect
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as Figure 1~3 As shown, a motorized zoom and focus 6-megapixel day and night lens, in the optical system of the lens, along the incident direction of light from left to right, the front group A of the lens group with negative focal power and the focal power The rear group B is a positive lens group, and a variable diaphragm C is arranged between the front group A and the rear group B. The front group A includes lens A-1 and lens A-2 arranged in sequence from left to right and lens A-3; said rear group B includes lens B-1, lens B-2, lens B-3, lens B-4 and lens B-5 arranged in sequence from left to right in a cemented group, lens B -6 and lens B-7 are closely connected to each other, using the difference in refractive index and dispersion of the positive and negative lenses of the glued group to correct the aberration of the lens, s...
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