Two element optical system, a camera using it and method of maki

Details Two element optical system, a camera using it and method of maki Two element optical system, a camera using it and method of maki

1995-04-24

1997-11-18

Nelms, David C.

Optical: systems and elements

Lens

Including a nonspherical surface

G02B 908

Patent

active

056893760

ABSTRACT:
An optical system comprising two lens elements one of which is biaspheric, the optical system is suitable for use in photographic devices such as single-use cameras having curved image planes. This optical system can operate at low F-numbers while maintaining an excellent performance.

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patent: 5166830 (1992-11-01), Ishibai
patent: 5327291 (1994-07-01), Baker
patent: 5365377 (1994-11-01), Sato
Meiron, Joseph, "On the Design of Optical Systems Containing Aspheric Surfaces" Journal of Optical Society of America, vol. 46, No. 4 Apr. 1956.

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