HOLOGRAM COLOR FILTER

PROBLEM TO BE SOLVED: To suppress slant angle variation of a diffraction grating constituting a hologram color filter due to heating added in a manufacturing process of a spatial optical modulation element. SOLUTION: The stable hologram color filter without slant angle variation of the diffraction g...

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Bibliographische Detailangaben
1. Verfasser:	IMAOKA HIROFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	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 NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress slant angle variation of a diffraction grating constituting a hologram color filter due to heating added in a manufacturing process of a spatial optical modulation element. SOLUTION: The stable hologram color filter without slant angle variation of the diffraction grating in a heating process is provided by arranging a hologram lens layer going >=1.5 mm inward from the edges of a supporting glass substrate and by using an adhesive with a glass transition temperature >=50 deg. higher than the heating temperature added in the manufacturing process of the spatial optical modulation element as the adhesive layer covering the hologram lens layer.