| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a reflector type sensor not causing malfunction. SOLUTION: In this reflector type sensor, a light beam radiated from an irradiator strikes on a detected object, and the reflected light beam is detected by a photo detector to thereby detect the detected object. The sensor is formed by a generating means for generating the light beam radiated from the radiator to designated data-like pulse beam, and a determining means for determining that the detected object is detected when the photo detector receives the designated data-like pulse beam.</p> |
