LIGHT-EMITTING APPARATUS, LED ILLUMINATION, LED LIGHT-EMITTING APPARATUS, AND METHOD OF CONTROLLING LIGHT-EMITTING APPARATUS

Title:

LIGHT-EMITTING APPARATUS, LED ILLUMINATION, LED LIGHT-EMITTING APPARATUS, AND METHOD OF CONTROLLING LIGHT-EMITTING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2005/011006

Kind Code:

A1

Abstract:

A light emitting apparatus has at least two light-emitting diodes having chromaticities different from each other and light-emitting-apparatus control means for controlling the chromaticity of the light outputted from the light-emitting apparatus to a desired one. The light-emitting-diode control means controls the light emitting diodes in accordance with a predetermined function for a temperature change of the light emitting diodes. Thereby, it is possible to obtain a light-emitting apparatus having a stable desired chromaticity not changed even if temperature changes. Moreover, by performing control in accordance with a characteristic function for the fluctuation of wavelength due to a temperature change of the light-emitting diodes, a high-reliability desired chromaticity can be obtained with a high reproducibility.

Inventors:

SHIMIZU YOSHINORI (JP)
TSUJI RYUHEI (JP)
INUZUKA TOMOAKI (JP)
TARU MASAYUKI (JP)
MITANI KATSUNORI (JP)
SAKURAGI HARUMI (JP)
KUNISAKI YASUHIRO (JP)

Application Number:

PCT/JP2004/010623

Publication Date:

February 03, 2005

Filing Date:

July 26, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NICHIA CORP (JP)
SHIMIZU YOSHINORI (JP)
TSUJI RYUHEI (JP)
INUZUKA TOMOAKI (JP)
TARU MASAYUKI (JP)
MITANI KATSUNORI (JP)
SAKURAGI HARUMI (JP)
KUNISAKI YASUHIRO (JP)

International Classes:

H01L33/00; H01L33/50; H05B37/02; H05B44/00; (IPC1-7): H01L33/00

Domestic Patent References:

WO2000001046A1

2000-01-06

Foreign References:

JP2000112429A	2000-04-21
US20030011553A1	2003-01-16
US20030016198A1	2003-01-23
JP2002170999A	2002-06-14
US20020175632A1	2002-11-28
US20030063462A1	2003-04-03

Other References: