| 摘要 |
PROBLEM TO BE SOLVED: To provide a photoelectronic sensor capable of improving water resistance. ! SOLUTION: A photoelectronic sensor 10 comprises an optical unit 200 and a casing 100. The optical unit 200 includes at least one of light projecting means 230 and light receiving means 231. The light projecting means 230 emits detection light for detecting a detection object 6 existing in a detection region 5. The light receiving means 231 receives detection light from the detection region 5. The casing 100 has a rectangular parallelepiped shape including a plurality of planes including a front plane 101, and houses the optical unit 200. The front plane 101 seals a front opening 100a-1. The front plane 101 is smaller than a plane having the largest area among the plurality of planes of the casing 100. The front opening 100a-1 is an opening on the light passage unit side through which at least one of detection light from the light projecting means 230 and detection light to the light receiving means 231 passes |
