| 摘要 |
A method and system for reflecting a predetermined range of wavelengths of a beam of light (50) while transmitting the remaining range of wavelengths without changing the orientation of an electric field vector for the reflected or transmitted wavelengths is disclosed. The system and method are particularly suited for use in a PEMFVORD projection system for illuminating rectangular shaped LCDs (34) of the projection system. A system of the invention permits virtually all of the light from a light source (32) to be directed at the LCDs (34) and can be used to provide a projection system having improved brightness, contrast and resolution with better heat dissipation. |
