| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical pointing device using a light guide type optical member and reducing the influence of stray light on image data imaged by an imaging element. <P>SOLUTION: The optical pointing device 30 uses a cover part 24 serving as a light guide type optical member and has on the back face of the cover part 24 a stray light prevention prism 19A that varies the path of light emitted from a light source 16 and impinging on an imaging element 15 without passing through an image-forming element 14. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
