| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light detector which easily corresponds to a change in a size and a shape of an object to be detected, and has good assemblability. <P>SOLUTION: A light detector 10 comprises: a light emission wall and a light-receiving wall disposed opposite each other; a light emission window and a light-receiving window provided on the light emission wall and the light-receiving wall; a case body 5 having a light emission element block holding part and a light-receiving element block holding part; a light emission element block and a light-receiving element block; and a light emission element holding substrate and a light-receiving element holding substrate. The light emission element holding substrate 6 in which the light emission element block is installed therein and the light-receiving element holding substrate 7 in which the light-receiving element block is installed therein are installed in the case body to detect the presence or absence of an object to be detected based on light ray passing through the light emission window and the light-receiving window. <P>COPYRIGHT: (C)2012,JPO&INPIT |
