Optical system for use in photographic devices

Details Optical system for use in photographic devices Optical system for use in photographic devices

1990-05-23

1991-03-19

Arnold, Bruce Y.

350450, G02B 908

Patent

active

050005529

ABSTRACT:
An optical system comprising two plastic elements is suitable for use in very low cost, wideangle cameras having curved image surfaces. This system has low distortion across a curved field angle of 65 degrees or more.

REFERENCES:
patent: 55195 (1866-05-01), Zentmayer
patent: 1082678 (1913-12-01), Casler
patent: 2586418 (1950-09-01), Davis
patent: 3006248 (1958-09-01), Linke et al.
patent: 4932764 (1990-06-01), Simpson, Jr.
Lens Design Fundamentals, Rudolf Kingslake, Pub. by Academic Press, 1978, pp. 49-55.

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