| 摘要 |
<p>The invention relates to an optical light valve device, comprising a light valve (1) which (5) is adapted for being irradiated with incident light (3) and for modulating the incident light (3) by predetermined image data, and an aperture (2) with a light-transmissive area (7) for transmitting part of the incident light (3) and a light-blocking means (6) for blocking another part of the incident light (3), wherein the light blocking means is thin to avoid reflections from the edge of the aperture. This has the advantage that uncontrolled stray (10) light is avoided and, thus, no deterioration of image quality due to such stray light occurs. Also the surface of the light-blocking area (6) which is facing away from the light valve (1) is specularly reflective. This also has the advantage that uncontrolled stray light is (15) avoided and, thus, no deterioration of image quality due to such stray light occurs.</p> |
