| 摘要 |
PURPOSE:To omit a reflecting member provided especially by using part of a member constituting the transmitter in common to a means varying an optical path of a light beam. CONSTITUTION:A projection 4 being a light beam reflecting means cut and raised from a case 3 at a proper angle is provided onto the case 3 being part of a member constituting the transmitter main body 5 together with a photodetector sensor 2. A light source 1 radiates a light beam L for optical communication with a prescribed operation and a radiating beam L strikes on the projection 4 provided onto the case 3 and is reflected at a prescribed angle and received by the photodetector sensor 2. Upon the detection of the light beam L, the sensor 2 applies a prescribed operation. Thus, it is not required to prepare the reflecting member to reflect the light beam radiating from the light source separately and number of parts is decreased. |
