| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical device which can prevent light from leaking out of a liquid crystal shutter. SOLUTION: The optical device is characterized in that it has light sources (101r, 101g, and 101b), the liquid crystal shutter (120) which transmits or cuts off the light from the light sources according to an image signal, and a refractive index dispersion type lens array (130) which images the transmitted light from the liquid crystal shutter on a photosensitive body and has a maximum opening angle less than the light shading permissible angle of the liquid crystal shutter.</p> |
