drumdude

4 ms·

1. 1.▲
   by drumdude 3mo ago

   Cinema RGB laser projectors are around $50,000. The cheaper non cinema versions are probably around $20,000.
2. 2.▲
   by drumdude 4y ago

   The camera handles everything automatically. It generates dynamic patterns on the screen and adjusts several times until it is satisfied with the result. It does this for red, green, blue, and white across 10IRE, 20IRE, ect up to 100IRE.
3. 3.▲
   by drumdude 4y ago

   I do this for a living. Sony digital cinema projectors use a type of LCD panel (SXRD) where the uniformity drifts over time. A special camera takes about 35 minutes to create a LUT to restore the projected image to a uniform white.