| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a scanning image projector that facilitates making the whole optical system compact while making it easy to control an image being projected. <P>SOLUTION: The scanning image projector comprises a light source unit that gives out a light beam modulated on the basis of image information, a deflector that reflects the light beam for deflecting and scanning it in a two-dimensional direction, and a projecting optical system that projects a light beam reflected by the deflector toward a projection direction to form a two-dimensional projected image. The projecting optical system 6 comprises a plurality of reflecting surfaces 12, 13 tilted with respect to a chief ray 21 of a light beam leading to the center of the projected image. At least one of the plurality of reflecting surfaces 13, 14 is a curved reflecting surface of concave shape at a position where the chief ray 21 of a light beam leading to the center of the projected image goes by. A chief ray of a light beam leading to an end of the image leaves in a direction away form the chief ray 21 of the light beam leading to the center of the projected image as it is out of the projecting optical system 6. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
