IMPROVED HOLOGRAPHIC NOTCH FILTER

PURPOSE: To easily produce a holographic mirror having good reproducibility by using a transparent substrate having a transparent polymer film having a mirror formed of a reflection hologram, forming the film to have about >0.01 modulation of refractive index, and exposing a specified compsn. to...

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Bibliographische Detailangaben
Hauptverfasser:	TORENSU JIYON TORAUTO, DAAREIN YUUJIIN KIIZU, UIRIAMU KAARU SUMAZAAZU
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY ELECTROGRAPHY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY MATERIALS THEREFOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	PURPOSE: To easily produce a holographic mirror having good reproducibility by using a transparent substrate having a transparent polymer film having a mirror formed of a reflection hologram, forming the film to have about >0.01 modulation of refractive index, and exposing a specified compsn. to coherent light. CONSTITUTION: This filter consists of a transparent substrate having a transparent polymer film including a reflection hologram. The film has >0.01 refractive index modulation, and the polymer film before recording a hologram consists of about 25 to 75% polymer binder selected from copolymers such as polyvinylacetate and polyvinylbutylal and the mixture thereof, about 5 to 60% ethylene type unsatd. monomers selected from carbazol-contg. monomers and liquid monomers containing phenyl and biphenyl groups, and about 0 to 25% plasticizer, and about 0.1 to 10% photoinitiator which is activated by irradiation of active rays. Thereby, a holographic mirror having reproducibility can be obtd.