Imaging lens and camera system including the same lens

Details Imaging lens and camera system including the same lens Imaging lens and camera system including the same lens

2007-09-05

2009-12-29

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S783000

Reexamination Certificate

active

07639432

ABSTRACT:
An imaging lens comprises, in order from an object side: a first lens having a negative refractive power with a concave surface directed to an image side thereof; a second lens having a positive refractive power with a convex surface directed to an image side thereof and having an absolute value of a radius of curvature on the image side is equal to or smaller than that on an object side thereof; an aperture stop; a third lens which is a planoconvex lens having a plane on an object side thereof or a double-convex lens having on an object side thereof a surface of which an absolute value of a radius of curvature is larger than that on an image side thereof; and a compound lens of a fourth lens and a fifth lens, the compound lens having a positive composite power.

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patent: 2004-61763 (2004-02-01), None
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patent: 2006/168683 (2006-06-01), None
patent: 2006-243092 (2006-09-01), None

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