Rear projection screen

Rear projection screen

  • CN 1,137,318 A
  • Filed: 08/28/1995
  • Published: 12/04/1996
  • Est. Priority Date: 09/06/1994
  • Status: Abandoned Application
First Claim
Patent Images

1. bear projection screen that comprises light-passing board, the first surface of this light-passing board has the cylindrical lens structure arranged side by side that extends along first direction, second surface and first surface are oppositely arranged towards viewer side, and disposing also the first kind optical absorption band that extends along first direction, above-mentioned plate is included in the diffusing device on the second surface, the single part that it is characterized in that being used as the second type diffusion strips that the diffusion hologram forms constitutes diffusing device, this device has along first direction simultaneously with first angle with along the second direction vertical with the first direction dispersion effect with second angle, and this first and second angle is different.

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