Patent · US Active

Light source apparatus and light source adjusting module

US8115408B2 · kind B2 · utility

1Cited by
4References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 18, 2008
Grant dateFeb 14, 2012
Priority date
Expiry dateApr 3, 2030

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05B45/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A light source apparatus and a light source adjusting module are provided. The light source apparatus includes a power supply, a phase modulator, an electrical transformer, a light source adjusting module and a light-emitting device. The power supply provides a first AC voltage signal. The phase modulator receives the first AC voltage signal and adjusts a conducting phase of the first AC voltage signal to generate a modulated AC voltage signal. The electrical transformer transforms the modulated AC voltage signal to generate a second AC voltage signal. The light adjusting module generates a luminance adjusting signal according to a state of the second AC voltage signal. The light-emitting device receives the luminance adjusting signal to generate a corresponding light source.

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