HOLOGRAM MANUFACTURING DEVICE AND HOLOGRAM MANUFACTURING METHOD

World Intellectual Property Organization Patent

APP PUB NO WO-2023210212-A1
SERIAL NO

PCTJP2023011226

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Abstract

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A hologram manufacturing device comprising a master hologram in which a diffraction grating is formed, a replicated hologram disposed close to the master hologram, a first light source that emits, to the master hologram and the replicated hologram, a first laser beam that satisfies the Bragg diffraction condition in the diffraction grating, a second light source that emits, to the master hologram and the replicated hologram, a second laser beam that does not satisfy the Bragg diffraction condition in the diffraction grating, and a sensor that measures the second laser beam. The hologram manufacturing device finishes the exposure of the replicated hologram by the first laser beam on the basis of a measurement result of the sensor.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC IP MAN CO LTDJP

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Inventor(s)

Inventor Name Address
FUKUI ATSUSHI -
TAKATA KAZUMASA -
MASE KENICHIRO -
ARAKI YOSUKE -
AGEMIZU WAHEI -

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