Title:
LED LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2014197501
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an LED lighting device capable of being substituted for a halogen light bulb by a simple configuration.SOLUTION: An LED lighting device comprises: a first LED having a semiconductor light-emitting element with a light-emission peak wavelength at 360 nm or more and 480 nm or less; a second LED having a semiconductor light-emitting element with a light-emission peak wavelength at 360 nm or more and 480 nm or less and emitting the white light with a predetermined color temperature; a lens module that has a non-lens part arranged in a light emitting direction of the first LED and having an optical conversion member for converting light emitted from the first LED into the red to the orange light, and a lens part arranged in a light emitting direction of the second LED; and a current control part for controlling driving current supplied to the first LED at a constant value for the period in which a driving signal is supplied from outside, while controlling driving current supplied to the second LED by variable current in response to the driving signal.
Inventors:
ONAKA SHUJI
SHAMOTO TAKESHI
MAKINO KENJI
TAKEDA RITSU
SHAMOTO TAKESHI
MAKINO KENJI
TAKEDA RITSU
Application Number:
JP2013073118A
Publication Date:
October 16, 2014
Filing Date:
March 29, 2013
Export Citation:
Assignee:
MITSUBISHI CHEM CORP
International Classes:
H05B37/02; F21S2/00; F21V9/08; F21V9/40; F21V23/00
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