Invention Grant
US08902513B2 Ultracompact image pickup lens 有权
超小型摄像镜头

Ultracompact image pickup lens
Abstract:
An image pickup lens includes, an aperture stop, a first meniscus lens having positive refractive power with a convex surface facing the object, a second lens having positive refractive power with a concave surface facing the object, a third lens having negative refractive power with a convex surface facing the object, the both surfaces of the third lens are aspheric and having at least one pole-change point, and following conditional expressions are satisfied: TTL
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