Structure screen for controlled spreading of light

Structured screens for the controlled spreading, diffusion, or scattering of an incident beam are provided. The screens are composed of microstructures ( 1,2 ) whose configurations and distribution on the surfaces of the screen are precisely determined. In certain embodiments, the configurations and...

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Bibliographische Detailangaben
1. Verfasser:	G. M. MORRIS,T. R. M. SALES
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHOTOGRAPHY PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	Structured screens for the controlled spreading, diffusion, or scattering of an incident beam are provided. The screens are composed of microstructures ( 1,2 ) whose configurations and distribution on the surfaces of the screen are precisely determined. In certain embodiments, the configurations and/or their distribution is randomized. The structured screens can be used as diffusing screens or display screens.