Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Patent
1996-02-01
1999-09-21
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
349187, 349112, 359599, 359 15, 359 12, 362355, 362800, G02F 11335, G02H 120, G02B 532
Patent
active
059561068
ABSTRACT:
A light source destructuring and shaping device which both homogenizes and imparts predetermined directionality to light rays emanating from a light source is disclosed. The device comprises a micro-sculpted surface structure which controls the direction in which light propagates in either reflection or transmission. The sculpted surface structure also homogenizes light propagating through it with predetermined directionality. The device may be used in an almost unlimited number of applications which require homogenization and which would benefit from being able to impart directionality to light waves propagating from a light source. These applications include existing diffuser applications and applications wherein it was not practical to use conventional diffusers. The homogenizing and shaping device achieves these benefits with very high transmission or reflection efficiency and with reduced side lobes.
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Lerner Jeremy
Petersen Joel
Parker Kenneth
Physical Optics Corporation
Sikes William L.
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