Title:
OPTICAL SYSTEM FOR ILLUMINATION
Document Type and Number:
WIPO Patent Application WO/2009/059466
Kind Code:
A1
Abstract:
An optical system for illumination includes a light source (1) and an optical assembly (4) which surrounds the light source (2). The optical assembly (4) comprises a periphery surface (5) and a light emitting surface (6), wherein the light emitting surface (6) is inclined and the inclined angle thereof can be changed as required. When the light source (1) cooperates with the optical assemblies (4) with different inclined angles of the light emitting surface, illuminance for different regions and ranges is provided.
Inventors:
LIU CHIA-YU (CN)
Application Number:
PCT/CN2007/003172
Publication Date:
May 14, 2009
Filing Date:
November 08, 2007
Export Citation:
Assignee:
LITE ON IT CORP (CN)
LIU CHIA-YU (CN)
LIU CHIA-YU (CN)
International Classes:
F21V13/04; F21V5/08; F21Y101/02
Foreign References:
| CN2916332Y | 2007-06-27 | |||
| DE3137685A1 | 1983-04-07 | |||
| JP2002343107A | 2002-11-29 | |||
| DE3824651A1 | 1990-02-01 | |||
| JP2007010380A | 2007-01-18 | |||
| CN2883909Y | 2007-03-28 | |||
| JP2003168303A | 2003-06-13 | |||
| JPS5787001A | 1982-05-31 | |||
| US20010043476A1 | 2001-11-22 | |||
| US20060028833A1 | 2006-02-09 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (Bldg. BTsinghua Tongfang Hi-Tech Plaza,No. 1, Wangzhuang Rd.,Haidian District, Beijing 3, CN)
Download PDF:
Previous Patent: CONTINUOUS CONTROL OF LED LIGHT BEAM POSITION AND FOCUS BASED ON SELECTION AND INTENSITY CONTROL
Next Patent: A LED PROJECTING LAMP
Next Patent: A LED PROJECTING LAMP