Optical field flatteners

Optical: systems and elements – Lens – With graded refractive index

Reexamination Certificate

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Details

C359S648000

Reexamination Certificate

active

11251401

ABSTRACT:
Field flatteners that can correct large field curvatures.

REFERENCES:
patent: 4331380 (1982-05-01), Rees et al.
patent: 4447126 (1984-05-01), Heidrich et al.
patent: 4589736 (1986-05-01), Harrigan et al.
patent: 4852982 (1989-08-01), Yamamoto et al.
patent: 6941041 (2005-09-01), Yamaguchi et al.
patent: 0316507 (1993-12-01), None
patent: 25338341 (2005-12-01), None
U.S. Appl. No. 60/619,399, filed Oct. 14, 2004. Thomas W. Stone. Optical Field Flatteners.
U.S. Appl. No. 11/407,764, filed Apr. 20, 2006. Inventors: Thomas A. Mitchell et al. Optical Field Flatteners and Converters.

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