Apparatus for establishing substantially uniform...

Details Apparatus for establishing substantially uniform... Apparatus for establishing substantially uniform...

2006-06-13

2006-06-13

Harringtion, Alicia M (Department: 2873)

Optical: systems and elements

Lens

Including a nonspherical surface

Reexamination Certificate

active

07061690

ABSTRACT:
A device that includes a parabolic or hyperbolic lens that operates by receiving a uniform or non-uniform input light beam and produces a relatively uniform illumination of an illumination surface.

REFERENCES:
patent: 1824429 (1931-09-01), Goss
patent: 5692827 (1997-12-01), Chinniah et al.
patent: 6471375 (2002-10-01), Kobayashi et al.
patent: 6688756 (2004-02-01), Akiyama

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