| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a photoelectric sensor enhancing workability in joining members made of fluororesin without decreasing chemical resistance, waterproofness, and oil resistance and to provide a light projecting device and a regression reflection type mirror for the photoelectric sensor, and to especially provide the photoelectric sensor capable of sufficiently heating a joining part without damaging a sensor main part assembled to the housing case when the housing case and a cover are joined. <P>SOLUTION: The photoelectric sensor has the housing made of fluororesin and housing the sensor main part 11, the housing comprises the housing case 4 in which a first opening for assembling the sensor main part 11 is installed on one surface and a rib 4a for welding is installed in the peripheral part of the first opening, and the cover 5 in which the rib 4a for welding is installed in the peripheral part, and after the sensor main part 1 is assembled to the inside of the housing case 4, the first opening is sealed, and the cover 5 is fit to the housing case 4 and the ribs 4a and 5a are welded. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
