Wide-angle high-magnification zoom lens multiplier with flange
A zoom lens and multiplier technology, applied in installation, optics, instruments, etc., can solve the problem that the field of view of the imaging system cannot reach the level of wide-angle, and the field of view is small, so as to achieve excellent imaging effect, no image cutting, compact effect
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[0016] Such as Figure 1~2 As shown, a wide-angle high-magnification zoom lens multiplier with a flange, the optical system of the multiplier is provided with a front lens group A with a negative focal power and a focal power of Positive rear lens group B, the front lens group A is sequentially provided with a negative crescent lens A-1 and a biconcave lens A-2, and the rear lens group B is composed of a negative crescent lens B-1 and a biconvex lens A-2 Lens B-2 is a tightly bonded glued group; the mechanical structure of the multiplier includes a lens barrel 1, and the lens barrel 1 is provided with a front group mounting seat and a rear group mounting seat, and the lens barrel 1 is mounted on the front group mounting seat A flange 5 is extended outwards from the transition position between the rear mounting seat and the negative crescent lens A-1 and the biconcave lens A-2 are placed on the front mounting seat and pressed by the front pressure ring 2, Negative crescent len...
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