Single focus lens

Details Single focus lens Single focus lens

2006-09-28

2008-08-05

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S716000

Reexamination Certificate

active

07408725

ABSTRACT:
A single focus lens is provided and includes: in order from an object side of the single focus lens, a first lens having positive power and having a convex surface on the object side; a second lens of a negative meniscus lens and having a concave surface of the object side on its paraxial axis; and a third lens of an aspherical lens having a convex surface on the object side on its paraxial axis. The single focus lens satisfies conditions specified in the specification.

REFERENCES:
patent: 6992840 (2006-01-01), Takeuchi et al.
patent: 2004/0190162 (2004-09-01), Sato
patent: 2005/0041306 (2005-02-01), Matsuo
patent: 2005/0094292 (2005-05-01), Cahall et al.
patent: CN-1512197 (2004-07-01), None
patent: 1 562 061 (2005-08-01), None
patent: 10-48516 (1998-02-01), None

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