Bent zoom lens

Details Bent zoom lens Bent zoom lens

2006-12-20

2009-12-01

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S676000

Reexamination Certificate

active

07626765

ABSTRACT:
The bent zoom lens is configured to include, arranged in order from an object side, a first lens group GR1having a positive refractive power, a second lens group GR2having a negative refractive power, a third lens group GR3having a positive refractive power, a fourth lens group GR4having a negative refractive power, and a fifth lens group GR5having a positive refractive power. The first lens group GR1includes a single piece of meniscus lens having a negative refractive power and having a convex surface directed toward an object side, a prism that bends an optical path, and a single piece of double-convex lens having a positive refractive power.

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patent: 2006/0274426 (2006-12-01), Sueyoshi
patent: 1 630 584 (2006-03-01), None
patent: 3486474 82 (2003-10-01), None
patent: 2004-354869 (2004-12-01), None

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