Imaging lens

Details Imaging lens Imaging lens

2007-03-13

2008-09-09

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S792000

Reexamination Certificate

active

07423820

ABSTRACT:
An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens having a convex surface directed to the object side on an optical axis and having a positive power; an aperture diaphragm placed between a top position of an object-side surface of the first lens and a position of an image-side surface of the first lens on the optical axis; a second lens having a meniscus shape with a concave surface directed to the object side on the optical axis; and a third lens having a meniscus shape with a convex surface directed to the object side on the optical axis. Further, the imaging lens satisfies specific conditional expressions.

REFERENCES:
patent: 2005/0237633 (2005-10-01), Nagai et al.
patent: 2002-221659 (2002-08-01), None
patent: 2004-302058 (2004-10-01), None
patent: 2005-173319 (2005-06-01), None
patent: 2005-227755 (2005-08-01), None
patent: 2005-292235 (2005-10-01), None

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