Invention Grant
US08526125B2 Lens system 失效
镜头系统

Lens system
Abstract:
A lens system includes a first lens with positive refractive power and a second lens with positive refractive power, and an image plane. The first lens includes a first surface and a second surface from the object-side to the image-side of the lens system. The lens system satisfies the conditions: D/TTL>1.18; 1.5
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