Optical system and optical module

Details Optical system and optical module Optical system and optical module

1998-10-01

2000-10-10

Epps, Georgia

Optical: systems and elements

Lens

With graded refractive index

359652, 359653, G02B 300

Patent

active

061307874

ABSTRACT:
An optical system comprising a radial type gradient index lens element which has a negative refractive power of medium and a negative refractive power as a whole, and a radial type gradient index lens element which has a negative refractive power of medium and a negative refractive power as a whole; the optical system having favorable imaging performance: and an optical module using the optical system which is suited for stereoscopic photography and automatic focusing.

REFERENCES:
patent: 4639094 (1987-01-01), Aono
patent: 5184251 (1993-02-01), Tsuchida
patent: 5448409 (1995-09-01), Noda

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