Imaging lens and camera apparatus

Details Imaging lens and camera apparatus Imaging lens and camera apparatus

2007-09-28

2008-10-14

Choi, William C. (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S716000, C359S740000

Reexamination Certificate

active

07436605

ABSTRACT:
An imaging lens is configured sequentially from the object side by: a first lens having a meniscus shape where a convex surface is directed to the object side; a second lens; and a positive third lens in which an image-side surface is a convex surface. The first lens, the second lens, and the third lens are configured by a bi-aspherical plastic lens. The second lens is configured by a bi-convex lens in which the absolute value of the radius of curvature of the object-side surface is smaller than that of the image-side surface. The third lens is a positive lens and a meniscus lens in which a concave surface is directed to the object side, and a convex surface is directed to the image side.

REFERENCES:
patent: 7304808 (2007-12-01), Hirose et al.
patent: 10-170821 (1998-06-01), None
patent: 3206930 (2001-07-01), None
patent: 2001-337268 (2001-12-01), None
patent: 2005-181596 (2005-07-01), None
patent: 2005-321742 (2005-11-01), None
patent: 2006-168683 (2006-06-01), None

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