| 摘要 |
PURPOSE:To enable even a small object to be discriminated and to make data processing easy, by irradiating a laser light on an object to be detected with time division and detecting the reflected light via an optical fiber group. CONSTITUTION:A laser light is transmitted from a transmission section 4 while rotating a rotary mirror 2 with a motor 3 and an optical fiber group 6 at the light emission side is scanned. The laser light transmitted sequentially is emitted from a terminal fixed frame 8 and irradiated on a printed circuit board during carrying. The reflected light is emitted from an end 15 of a fixed frame via a fiber group 7 at the photodetection side, reflected under the rotary mirror 2 and made incident to a photodetection section 5. The output is transmitted to a data processing section 11 and processed in response to the rotary angle of the rotary mirror 3. Thus, the discrimination can be made even for a small object to be detected and the data processing can be made easily. |
