Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1994-07-06
1996-08-20
Epps, Georgia Y.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359640, 359837, G02B 2712
Patent
active
055484441
ABSTRACT:
An optical beam homogenizer includes an entrance pupil through which a non-uniform optical beam propagates. A first optical component having plural flat surfaces receives the input beam. The flat surfaces of the first optical component effectively segment the entrance pupil by dividing the input beam into plural beamlets, one beamlet for each pupil segment and flat surface. The beamlets are received by a second optical component which also has multiple flat surfaces, each flat surface receiving a beamlet. The second optical component directs the beamlets toward each other such that they overlap at an exit pupil of the system. The second optical component also focuses the beamlets such that an image of each entrance pupil segment is formed at the exit pupil. The images of the individual entrance pupil segments are superimposed upon each other at the exit pupil to form a uniform optical output beam.
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Fernald Mark R.
Harte Kenneth J.
McLaughlin Joseph L.
Denson-Low W. K.
Epps Georgia Y.
Hughes Danbury Optical Systems, Inc.
Mack Ricky
Schubert W. C.
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