Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LIGHT SOURCE, SOLID STATE LIGHT EMITTING ELEMENT MODULE, FLUORESCENT MODULE, LIGHT ORIENTATION ELEMENT MODULE, ILLUMINATION DEVICE, IMAGE DISPLAY DEVICE, AND LIGHT SOURCE ADJUSTMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2006/085693
Kind Code:
A1
Abstract:
It is possible to irradiate a desired irradiation surface with light of a uniform color having a high color rendering with a high light emission efficiency. In order to achieve this object, a light source has a plurality of primary light sources for emitting primary lights of different wavelengths. The maximum value of the difference between CIE chromaticity coordinates of the primary lights is set to 0.05 or above so that the primary lights have the same orientation characteristics on the desired irradiation surface. The light emission efficiency is set to 301 m/W or above and the average color rendering evaluation number is set to 60 or above.

Inventors:
UCHIDA YUJI (JP)
TAGUCHI TSUNEMASA (JP)
KIJIMA NAOTO (JP)
Application Number:
PCT/JP2006/302901
Publication Date:
August 17, 2006
Filing Date:
February 13, 2006
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI CHEM CORP (JP)
UCHIDA YUJI (JP)
TAGUCHI TSUNEMASA (JP)
KIJIMA NAOTO (JP)
International Classes:
F21V3/04; F21S2/00; F21S8/04; F21V5/04; F21V9/08; F21V9/40; F21Y101/02
Foreign References:
JP2000188002A2000-07-04
JPH0738154A1995-02-07
JP2002525836A2002-08-13
JP2004349646A2004-12-09
JP2000150089A2000-05-30
JP2004071726A2004-03-04
Other References:
TSUNEMASA TAGUCHI.5: ""Technology for High-Brightness, High-Efficiency and Prolonged-Life White-Light LED Lighting Systems"", TECHNICAL INFORMATION INSTITUTE CO, LTD., pages 90 - 93
"Lighting Handbook,2nd edition.", THE ILLUMINATING INTITUTE OF JAPAN., pages: 73 - 144
J.LIGHT & VIS.ENV.: ""Pesent Status of White Lighing Technologies in Japan".", vol. 27, no. 3, 2003, T.TAGUCHI;, pages 131 - 139
"NHK Color TV Textbook.", vol. 1,2, JAPAN BROADCASTING CORPORATION.
HEIJU UCHIIKI; SHIGEO MIKOSHIBA.: ""All about Plasma Display TV"", INDUSTRIAL INVESTIGATION COMMITTEES.
NORIO KOJIMA.: ""Basis of Pulse and Digital Circuit"", MODERN ENGINEERING.
See also references of EP 1876387A4
Attorney, Agent or Firm:
Sanada, Tamotsu (10-31 Kichijoji-honcho 1-chom, Musashino-shi Tokyo, JP)
Download PDF: