REFRACTIVE INDEX MODULATION IN DIFFRACTIVE GRATINGS FOR OPTICAL ELEMENTS OF AUGMENTED REALITY AND VIRTUAL REALITY DISPLAYS

Head-mounted displays (HMD) or other suitable optical equipment with waveguides comprising an optical element comprising a diffractive grating. The optical element may comprise a plurality of microheaters corresponding to respective portions of the diffractive grating, wherein a plurality of voltage...

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Bibliographische Detailangaben
1. Verfasser:	Ofir, Yuval
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING 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 FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	Head-mounted displays (HMD) or other suitable optical equipment with waveguides comprising an optical element comprising a diffractive grating. The optical element may comprise a plurality of microheaters corresponding to respective portions of the diffractive grating, wherein a plurality of voltages is applied to the plurality of microheaters to selectively modulate respective refractive indexes of corresponding portions of the diffractive grating.