Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2008-07-15
2008-07-15
Dang, Hung X. (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S791000
Reexamination Certificate
active
07400454
ABSTRACT:
A digital camera imaging lens includes first, second and third lenses arranged in sequence from an object side toward an imaging surface side. The first lens is a meniscus lens having a positive power, whose convex surface faces the object side. The second lens is a meniscus lens having a negative power, whose concave surface faces the object side. The third lens is an aspherical lens having an inflection point on its object-side surface. An aperture stop is disposed between the first and second lenses. The imaging surface is defined by an element surface of a photosensor.
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International Search Report dated Feb. 10, 2005 (4 pages).
Kubota Yoji
Matsui Toshio
Dang Hung X.
Flynn, Theil, Boutell & Tanis, P.C.
Martinez Joseph
Nagano Optics Laboratory Corporation
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