Patent · US Expired

Light source device and display device

US7290899B2 · kind B2 · utility

0Cited by
10References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 23, 2005
Grant dateNov 6, 2007
Priority date
Expiry dateDec 23, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/133628
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A light source device includes a discharge tube, a reflector for reflecting a light radiated from the discharge tube, and support members for supporting the discharge tube to the reflector. The support member or the discharge tube is formed of a heat insulating structure so as to prevent a temperature drop of a portion of the discharge tube near electrodes thereof. By this arrangement, it is possible to prolong the operational life of the discharge tube.

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