| 摘要 |
The method involves producing an adjusted ray of light (58) with an adjustment screen (52) in front of a transmitter (30), and positioning another screen (54) in front of a receiver (32). The receiver is equipped in such a way that the light, exhibiting a small cross section, meets a target crossing point. A crossing point of a reflected part of the light is compared with the target crossing point on the receiver in an evaluation unit. The receiver is adjusted, where the crossing point of the reflecting part of the adjusted ray of light visibly meets the target. An independent claim is also included for an optoelectronic security system for a hazardous machine e.g. bending press. |
