Beam-homogenizer

Details Beam-homogenizer Beam-homogenizer

1994-02-28

1997-03-11

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

For synthetically generating a hologram

359 15, 359 20, 359 25, 359900, G03H 108

Patent

active

056107331

ABSTRACT:
A beam homogenizer for converting an incident beam of non-uniform spatial power or energy distribution into an output beam of uniform spatial power or energy distribution. The homogenizer is a holographic optical element constructed from an array of facets or subholograms and positioned at a first plane in the path of an incident signal. The transmittance from each subhologram is uniformly spread across a target at a second plane that is spaced away from the first plane Another optical element, such as a holographic collimation element, may be placed at the second plane to collimate the transmittances thereupon.

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