| 摘要 |
A digital display system, such as a projection system, utilizing image forming elements such as LCDs or other light valves with means to enhance display brightness which may include the use of at least two light sources, means to split light from the light sources into two polarizations, means to rotate the polarization of the light of one polarization so that it matches the polarization of the remainder of the light, all of the light then being directed towards the image forming elements, and the use of novel optical elements to collect a majority of the light emitted by the light sources and to re-direct that light so that it can be used by the display system.
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