LED照明装置 - Koninklijke Philips Electronics N.V.

Title:

LED照明装置

Document Type and Number:

Japanese Patent JP2009519574

Kind Code:

A

Abstract:

This invention relates to a LED lighting device having a plurality of LEDs, and a LED drive system. The LED drive system includes basic light circuitry for generating, for each LED, a basic current causing continuous basic light output of the LED. Additionally, the LED drive system includes flash light circuitry, for generating, for each LED, a momentary flash current through the LED, which causes a momentary flash light output. An average current amplitude of the flash current is higher than an average current amplitude of said basic current. Thereby flashes, or twinkles, will be observed by a person watching the LED lighting device.

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Inventors:

Sneijder Pieter Jay

Application Number:

JP2008545150A

Publication Date:

May 14, 2009

Filing Date:

November 14, 2006

Export Citation:

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Assignee:

Koninklijke Philips Electronics N.V.

International Classes:

H05B37/02; H05B44/00; B60Q3/02; F21S8/04; F21S10/06; F21Y101/02

Domestic Patent References:

JP2005093566A	2005-04-07
JP2005347133A	2005-12-15

Foreign References:

WO2005078810A1

2005-08-25

Attorney, Agent or Firm:

Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen

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