3 ms·
The projector lens's optics (coatings, materials, etc.) will have been designed and engineered to have a specified contrast ratio. So yes, if the internal ligh
by drjasonharrison 2y ago
The projector lens's optics (coatings, materials, etc.) will have been designed and engineered to have a specified contrast ratio.
So yes, if the internal light engine of the DLP truly reflected all light away,
then, if it outputs zero photons for full-screen black, you could say the projector outputs zero photons.
However, the DLP is not 100% effective; the interesting images will have a mix of bright and dark areas, and the lens and software image processing will raise the black levels above zero.
Source: I worked at BrightSide Technologies before and after the acquisition by Dolby Laboratories and learned about DLP lens limitations from the engineer working on DLP+LCD based HDR displays.