LIGHT SOURCE DEVICE

PROBLEM TO BE SOLVED: To solve the problem that hologram of a light source device can output light beams only in one direction.SOLUTION: A light source device includes plural light sources arranged at mutually different positions, a diffraction grating that receives plural input light beams from the...

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Bibliographische Detailangaben
1. Verfasser:	KOISHI HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	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 HOLOGRAPHIC PROCESSES OR APPARATUS 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:	PROBLEM TO BE SOLVED: To solve the problem that hologram of a light source device can output light beams only in one direction.SOLUTION: A light source device includes plural light sources arranged at mutually different positions, a diffraction grating that receives plural input light beams from the plural light sources and can dynamically change a diffraction state by driving signals from outside, and a drive unit that outputs, to the diffraction grating, driving signals for generating one diffraction pattern that diffracts collectively plural input light beams from the plural light sources in one diffraction state, and another diffraction pattern that diffracts collectively the plural input light beams from the plural light sources in another diffraction state.