VOLUME TYPE HOLOGRAM MANUFACTURING METHOD

• Main Authors: MAENO YOSHITO, MATSUI FUMIO, IHARA JUNICHIRO, YOSHIHARA TOSHIO, OTAKI HIROYUKI
• Format: Patent
• Language: English
• Published: 02.08.2007
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHIC PROCESSES OR APPARATUS; HOLOGRAPHY; MATERIALS THEREFOR; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS

PROBLEM TO BE SOLVED: To provide a volume type hologram recording material having satisfactory sensitivity and hologram recording performance whose composition is regulated in accordance with the recording wavelength in a concretely set visible region, individually. SOLUTION: In the volume type hologram manufacturing method where a hologram recording part composed of a photosensitive composition for volume type hologram recording comprising: a photopolymerizable compound as a refractive index modulation component; a photopolymerization initiator; and an intensifying pigment of increasing sensitivity to the visible region wavelength of the photopolymerization initiator is subjected to interference exposure using a prescribed volume type hologram recording wavelength set within a visible region, so as to record the volume type hologram, the intensifying pigment is a cyclopentanone skeleton-containing compound expressed by general formula (1) (wherein, R is a carbon-nitrogen-containing substitution group expressed by NxCy; x=1 to 4; y=8 to 30; R may comprise a hydrogen atom and/or a halogen atom; and (n) is an integer of 0 to 3) and having an absorption at the above volume type hologram recording wavelength, and in which the maximum absorption wavelength is separated by ≥14 nm to the volume type hologram recording wavelength. COPYRIGHT: (C)2007,JPO&INPIT