Imaging lens array

Details Imaging lens array Imaging lens array

2007-10-02

2007-10-02

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

Including a nonspherical surface

C359S774000

Reexamination Certificate

active

11247914

ABSTRACT:
An imaging lens array that has stable performance and improved precision, wherein a first lens is a positive meniscus lens with a convex surface facing the object side; a second lens is a negative meniscus lens with a convex surface facing the object side; a third lens is a positive meniscus lens with a convex surface facing image side; and fourth lens is a positive meniscus lens with a convex surface facing the object side. When the second, third and fourth lenses are double-sided aspherical lenses, the respective lenses of the present invention can be ensured to have an appropriate power, it also can minimize error, and improve the image quality.

REFERENCES:
patent: 6900948 (2005-05-01), Sato
patent: 7012765 (2006-03-01), Matsui et al.

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