Lens assembly for an image sensor

Details Lens assembly for an image sensor Lens assembly for an image sensor

2006-12-05

2006-12-05

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S719000

Reexamination Certificate

active

07145736

ABSTRACT:
A lens assembly for an image sensor comprises an aperture, a first lens, a second lens and a third lens, which are arranged sequentially from the object side. The first lens is a planoconvex lens or a positive meniscus lens whose convex surface faces the object side; the second lens is a negative meniscus lens with a convex surface facing the image side and at least has an aspherical surface; and the third lens is a positive meniscus lens with a convex surface facing the object side and, at least, has an aspherical surface. The sensitivity of decentration and the aberration-correction effect of the whole lens assembly in accordance with the present invention can be effectively improved.

REFERENCES:
patent: 5940219 (1999-08-01), Yamada
patent: 6970306 (2005-11-01), Matsuo

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