Diffractive optical element and light irradiation apparatus

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United States of America Patent

PATENT NO 10704763
APP PUB NO 20190178468A1
SERIAL NO

16068019

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Abstract

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A diffractive optical element is configured to provide desired diffracted light and is excellent in durability. The diffractive optical element shapes light from a light source, wherein the diffractive optical element is provided with a diffractive layer having a periodic structure having low refractive index portions and high refractive index portions, and the high refractive index portions of the periodic structure include one having an aspect ratio of 2 or more.

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Patent Owner(s)

Patent OwnerAddress
DAI NIPPON PRINTING CO LTDTOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyazaki, Yuichi Tokyo, JP 47 484
Toyama, Nobuhito Tokyo, JP 19 133
Yoshioka, Hidenori Tokyo, JP 13 16

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