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Optical system having small perspective distortion and ultra-wide viewing angle
Optical system having small perspective distortion and ultra-wide viewing angle
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机译：具有小的透视畸变和超宽视角的光学系统
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摘要
An optical system, including, sequentially from an object side to an image side: a first lens; a second lens; a third lens; an aperture; a fourth lens; a fifth lens; a sixth lens; a seventh lens; an optical filter; and a photosensitive chip. The first lens is a meniscus aspherical lens. The second lens is a meniscus aspherical lens. The third lens is a biconvex aspherical lens. The fourth lens is a meniscus aspherical lens. The fifth lens is a meniscus spherical lens. The sixth lens is a meniscus spherical lens. The seventh lens is a biconvex aspherical lens.
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