Beam-shaping optical element and method and program for...

Details Beam-shaping optical element and method and program for... Beam-shaping optical element and method and program for...

2007-11-06

2007-11-06

Phan, James (Department: 2872)

Optical: systems and elements

Lens

Including a nonspherical surface

C369S112230, C359S668000

Reexamination Certificate

active

10532921

ABSTRACT:
A beam-shaping optical element employing an aspherical profileis presented to minimize aberration. A beam-shaping optical element according to the present invention includes an entrance surface and the exit surface, both having a non-circular cross-section in any plane comprising the optical axis. A beam-shaping optical element according to one embodiment of the present invention, has the optical axis coinciding with the Z-axis of a three-axis rectangular XYZ system of coordinates, and the entrance surface and/or the exit surface represented by a mathematical equation comprising a term representing a non-rotationally symmetric aspherical profile, at least one correction term comprising a function of variable X alone and at least one correction term comprising a function of variable Y alone.

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patent: 5283694 (1994-02-01), Frady
patent: 5661607 (1997-08-01), Katsuma
patent: 06274931 (1994-09-01), None
patent: 06294940 (1994-10-01), None
patent: 09167375 (1997-06-01), None
patent: 2001006202 (2001-01-01), None
patent: 2001160234 (2001-06-01), None

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