Optical: systems and elements – Lens – Reverse telephoto
Reexamination Certificate
2007-06-12
2009-11-24
Collins, Darryl J (Department: 2873)
Optical: systems and elements
Lens
Reverse telephoto
C359S680000, C359S754000
Reexamination Certificate
active
07623305
ABSTRACT:
An image capturing lens including: in order from an object side, a first lens group having a negative refractive power; a stop; and a second lens group having a positive refractive power; the first lens group including, in order from the object side, a first lens in a meniscus shape having a convex surface which faces the object side and a negative refractive power, and a second lens in a meniscus shape having a convex surface which faces the object side and a positive refractive power, and the second lens group including, in order from the object side, a third lens in a double-convex shape having a positive refractive power, a fourth lens in a double-concave shape having a negative refractive power, and a fifth lens having a positive refractive power.
REFERENCES:
patent: 6671103 (2003-12-01), Itoh
patent: 2000-193884 (2000-07-01), None
patent: 2000-275514 (2000-10-01), None
Collins Darryl J
Sony Corporation
Wolf Greenfield & Sacks P.C.
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