| 摘要 |
<p>A fiber optical plate (1), comprising detection areas (12) where light absorbers are disposed around optical paths and illumination areas (14) where the light adsorber is not installed between the adjacent optical paths, wherein an irregular pattern output surface (124) and an imaging element (4) and an illumination light incident surface (142) and a LED array (5) are joined to each other with a transparent adhesive agent, whereby the axis of the optical paths and an irregular pattern input surface (122) are tilted at a slant angle set so that light incident from the air is not totally reflected on a core/clad boundary surface.</p> |
