LED ILLUMINATION DEVICE

Title:

LED ILLUMINATION DEVICE

Document Type and Number:

Japanese Patent JP2010153345

Kind Code:

A

Abstract:

To provide an LED illumination device in which current flowing in the LED can be made to have a prescribed current value even if a resistor or a constant current circuit is not connected.

The LED illumination device A is equipped with a stabilizer B1 in order to stabilize an alternate current input from an alternate power source D, a rectifying circuit 1 to carry out a full-wave rectification on the alternate current input from the stabilizer B1, a plurality of LEDs 31a in which direct current is input from the rectifying circuit 1 and light is emitted, a substrate mounted with the LEDs 31a, and a light-emitting circuit 3 consisting solely of connecting wires to connect respective LEDs 31a and directly connected to the rectifying circuit 1.

Inventors:

WATANABE TOSHIO
OSAWA EIJI
KAWABATA YUSAKU
FUKUI HIROYUKI

Application Number:

JP2009031447A

Publication Date:

July 08, 2010

Filing Date:

February 13, 2009

Export Citation:

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Assignee:

ROHM CO LTD

International Classes:

H05B37/02; F21S2/00; F21V23/02; F21V25/10; F21Y101/02

Domestic Patent References:

JPH11135274A	1999-05-21
JP2005026001A	2005-01-27
JPH11162234A	1999-06-18
JP2004192833A	2004-07-08

Attorney, Agent or Firm:

Minoru Yoshida
Tatsuya Tanaka
Tsukasa Senba
Hiroshi Furusawa
Yasumitsu Suzuki
Nao Usui

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