Imaging lens module

Details Imaging lens module Imaging lens module

2008-01-02

2010-02-16

Collins, Darryl J (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S708000, C359S714000, C359S763000, C359S771000

Reexamination Certificate

active

07663813

ABSTRACT:
An imaging lens module includes a fixed diaphragm and an optical module. The optical module includes first, second, third, fourth and fifth lenses arranged from an object side to an image side in a sequence of: the first lens, having a negative refractive power, a convex surface disposed towards the object side, and a concave surface disposed towards the image side; the diaphragm; the second lens having a positive refractive power and a convex lens disposed towards the image side; and the third lens; being a meniscus negative lens; the fourth lens, being a positive lens, and adhered with the third lens to form a composite lens; the fifth lens, having a positive refractive power, such that the imaging lens module is a lens module with the features of high imaging quality and high yield rate.

REFERENCES:
patent: 5724195 (1998-03-01), Enomoto et al.
patent: 04315118 (1992-11-01), None

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