| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reflection apparatus capable of arbitrarily controlling a detection range of light by limiting an incident angle of light irradiated from a transmission part of a regressive reflection type photoelectric sensor. <P>SOLUTION: The reflection apparatus 2 is covered with a rectangular socket 3 and includes: a slit 5 which is formed on a front face of the socket 3 to irradiate a light into the inside of the socket 3; a slit width variable device 6 which is provided at the front of the inside of the socket 3 to adjust a width of the slit 5; a regressive reflection plate 4 which is provided at the rear of the inside of the socket 3 to reflect the light transmitted through the slit 5; a reflection plate width variable device 7 which is provided at the front of the regressive reflection plate 4 to limit an incident angle of the light irradiated to the regressive reflection plate 4; a variable device 8 which is provided on a side face of the socket 3 to vary the distance between the slit 5 and the regressive reflection plate 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
