Miniature fixed-focal-length lens system

Details Miniature fixed-focal-length lens system Miniature fixed-focal-length lens system

1993-06-23

1995-10-17

Sugarman, Scott J.

Optical: systems and elements

Lens

Selective magnification by exchanging or adding a lens...

359673, 359721, G02B 1514

Patent

active

054596157

ABSTRACT:
A miniature fixed-focal-length lens system includes a lens group which consists of a plurality of lenses and has a positive refracting power and a stop disposed on the object side of the lens group. The lens nearest to the object in the lens group is a meniscus lens which is concave to front and has a positive refracting power and the lens remotest from the object in the lens group is a lens which is convex to rear and has a positive refracting power.

REFERENCES:
patent: 3008373 (1961-11-01), Lange
patent: 4391493 (1983-07-01), Tajima et al.

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