Lens system

Details Lens system Lens system

1997-03-19

1999-10-26

Epps, Georgia

Optical: systems and elements

Lens

With graded refractive index

359774, 359785, G02B 300

Patent

active

059738502

ABSTRACT:
A lens system composed of a first lens unit which is composed of at least a positive lens component and at least a negative lens component, and a second lens unit which comprises at least one positive lens component. The lens system is composed of a small number of lens components and configured to be compact by disposing at least one radial type gradient index lens component in the second lens unit and selecting an adequate refraction index distribution for the radial type gradient index lens component.

REFERENCES:
patent: 5046833 (1991-09-01), Tsuchida
patent: 5157550 (1992-10-01), Tsuchida et al.
patent: 5268791 (1993-12-01), Tsuchida
patent: 5359456 (1994-10-01), Kikuchi
patent: 5729389 (1998-03-01), Nagaoka

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