Diffractive optical element for collimating and redistributing G

Details Diffractive optical element for collimating and redistributing G Diffractive optical element for collimating and redistributing G

1991-06-24

1992-09-15

Bovernick, Rodney B.

Optical: systems and elements

Diffraction

From grating

359641, 359719, 359742, G02B 2730, G02B 2744, G02B 308

Patent

active

051483173

ABSTRACT:
An optical element for producing a collimated output beam having a uniform intensity profile from a highly divergent input beam having a Gaussian intensity profile, the optical element consisting of a single convex-plano lens having a diffractive element etched into the plano side of the single lens in accordance with binary optics technology, the diffraction element being configured to complete collimation of the input beam directed at the convex side of the single lens while at the same time redistributing the input beam to produce a uniform intensity output beam.

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patent: 5073041 (1991-12-01), Rastani
Cox, J. Allen, "Binary Optics Offers New Freedom to System Designers", Laser Focus World, Aug. 1989, pp. 47-52.

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