LED lighting device

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United States of America Patent

PATENT NO 9746140
SERIAL NO

14663596

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Abstract

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An LED lighting device of embodiment comprising an LED light source which generates an ultraviolet light or a visible light, an axisymmetric transparent member which is provided over the light source and which is transparent to visible light, and an axisymmetric light scattering member disposed in the transparent member apart from the light source. A distance of closest approach L2 between the light source and the light scattering member, and an area C of a light emitting surface of the light source satisfy the settled relation. A length L1 of the light scattering member, and an absorption coefficient μ (1/mm) of the light scattering member satisfy the settled relation. A diameter d1 of the bottom surface of the light scattering member, the distance of closest approach L2, and a refractive index n of the transparent member satisfy the settled relation.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBAKANAGAWA KANAGAWA
TOSHIBA MATERIALS CO LTD8 SHINSUGITA-CHO ISOGO-KU YOKOHAMA-SHI KANAGAWA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashihara, Hiromichi Saitama, JP 14 158
Hirono, Masatoshi Kanagawa, JP 34 179
Hisano, Katsumi Chiba, JP 68 2026
Honguh, Yoshinori Kanagawa, JP 53 638
Kato, Mitsuaki Kanagawa, JP 56 292
Morino, Takeshi Kanagawa, JP 77 459
Ohno, Hiroshi Kanagawa, JP 278 2274
Shiratsuchi, Masataka Kanagawa, JP 51 416
Yamamoto, Yuichiro Kanagawa, JP 49 231

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