LIGHT EMISSION APPARATUS, ILLUMINATION SYSTEM AND ILLUMINATION METHOD

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United States of America Patent

SERIAL NO

13753920

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Abstract

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A light emission apparatus includes: a wiring board; a plurality of LED chips that are disposed on an LED chip mounting surface of the wiring board and are grouped into a plurality of LED groups; a wavelength conversion member that is disposed at a position corresponding to the LED chip mounting surface of the wiring board, converts a wavelength of light emitted by the corresponding LED chips, and emits first-order light with a different color temperature for each wavelength conversion region; a current supply section that supplies a driving current to the LED chips independently for each LED group through the wiring board; and a control section that controls the current amount supplied for each LED group in response to a control signal. The control section independently controls timing of starting to light the LED groups in accordance with the light control level.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI CHEMICAL CORPORATION1-1 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1008251 ?1008251

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hattori, Eiji Minato-ku, JP 22 307
Katsumoto, Tadahiro Yokohama-shi, JP 8 266
Kijima, Naoto Yokohama-shi, JP 83 2157
Kodama, Hiroya Yokohama-shi, JP 4 221
Kojima, Takashi Yokohama-shi, JP 231 1691
Takeda, Toru Minato-ku, JP 98 2283
Yokoo, Toshiaki Yokohama-shi, JP 10 312
Yoyasu, Fumiko Yokohama-shi, JP 11 500

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