Patent · US Expired

Led illumination system

US6837605B2 · kind B2 · utility

120Cited by
7References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 27, 2002
Grant dateJan 4, 2005
Priority date
Expiry dateNov 27, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S362/80
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In an LED illumination system for illuminating a surface (5) with a predetermined illumination distribution, comprising at least one LED semiconductor body (2) which emits light symmetrical to a main beam direction (9) of the LED semiconductor body (2), illumination optics (4) are disposed between the at least one LED semiconductor body (2) and the surface (5) that is to be illuminated, which optics deflect the emitted light (6) asymmetrically relative to the main beam direction (9) of the LED semiconductor body (2). This makes it possible to purposely adjust the illumination of the surface (5) regardless of its shape.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.