摘要 |
A light projecting circuit of a photoelectric switch includes a light projecting element (2), a driver circuit (1, 3) for driving the light projecting element by use of pulses, and a change-over switch (4) for increasing or for decreasing an amount of light emitted from the light projecting element. With this provision, in an operation to adjust optical axes, the change-over switch can be used to increase the amount of the emitted light. Consequently, the position of the projected light beam can be easily confirmed. |
申请人 |
OMRON CORP., KYOTO, JP |
发明人 |
MISUMI, FUMIHIKO, C/O OMRON CORP., INT. PRO. CEN., KYOTO 617, JP;UEDA, MASAZUMI, C/O OMRON CORP., INT. PRO. CEN., KYOTO 617, JP;HARA, MASATO, C/O OMRON CORP., INT. PRO. CEN., KYOTO 617, JP;MATSUI, YUTAKA, C/O OMRON CORP., INT. PRO. CEN., KYOTO 617, JP;IMAI, KIYOSHI, C/O OMRON CORP., INT. PRO.CEN., KYOTO 617, JP |