HOLOGRAM MANUFACTURING EQUIPMENT, AND HOLOGRAM MANUFACTURING METHOD

To provide a piece of hologram manufacturing equipment capable of improving accuracy of a copied hologram.SOLUTION: Hologram manufacturing equipment includes: a master hologram 41 formed with a diffraction grating; a copy hologram 42 placed close to the master hologram 41; a light source 1 that emit...

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Bibliographic Details
Main Authors TAKADA KAZUMASA, ARAKI YOSUKE, FUKUI KOJI, MASE KENICHIRO, AGEMIZU WAHEI
Format Patent
LanguageEnglish
Japanese
Published 07.03.2024
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:To provide a piece of hologram manufacturing equipment capable of improving accuracy of a copied hologram.SOLUTION: Hologram manufacturing equipment includes: a master hologram 41 formed with a diffraction grating; a copy hologram 42 placed close to the master hologram 41; a light source 1 that emits laser beam L1 for exposing the copy hologram 42; a light source 2 that emits laser beam L2 to the copy hologram 42 at an angle of incidence different from that of the laser beam L1; and a light receiving sensor 6 that measures a laser beam L3 that is the laser beam L2 reflected by the copy hologram 42. The exposure of the copy hologram 42 is terminated depending on a measurement result by the light-receiving sensor 6.SELECTED DRAWING: Figure 2 【課題】複製ホログラムの精度を向上させる。【解決手段】本ホログラム製造装置は、回折格子が形成されたマスタホログラム４１と、マスタホログラム４１と近接して配置された複製ホログラム４２と、複製ホログラム４２を露光するレーザ光Ｌ１を出射する光源１と、複製ホログラム４２に対してレーザ光Ｌ２をレーザ光Ｌ１と異なる入射角度で出射する光源２と、レーザ光Ｌ２が複製ホログラム４２によって反射されたレーザ光Ｌ３を測定する受光センサ６とを備え、受光センサ６の測定結果により、複製ホログラム４２の露光を終了する。【選択図】図２
Bibliography:Application Number: JP20220135278