Light source module and projection apparatus
US8789957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2011 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/204
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light source module includes a light-emitting device emitting an excitation light beam, a reflective component including a reflective surface with a first focal point and a second focal point, a wavelength conversion device including a plurality of excited regions and disposed nearby the first focal point and on the transmission path of the excitation light beam, and an optical component. By rotating the wavelength conversion device, the excitation light beam irradiates the different excited regions at different time, so that the excitation light beam is converted into different wavelength light beams at different time, and the different wavelength light beams respectively correspond to the excited regions and are reflected by the reflective surface and converged at the second focal point. The optical component is disposed nearby the second focal point so the different wavelength light beams pass through the second focal point and are transmitted to the optical component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.