| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vehicle detector wherein the optical axis adjusting work is simple and adjusting time is short, the manufacturing is easy and cheaply and fine coupling can surely be detected. SOLUTION: The vehicle detector comprises light emitting blocks 100 having a plurality of light emitters arranged at specified positions with their optical axes adjusted to be mutually parallel and integrated in a body, and light emitting block mounting metals 18 comprising or mounting center pins 181 to be means for adjusting the optical axes of the blocks, two upper and lower adjusting screws 182, two upper and lower adjusting elongated holes 183, support point screw 184, right and left adjusting screws 185 and right and left adjusting elongated holes 186. The pitch of light emitters or photo detectors in the lowermost block is made small to surely detect couplings as well.</p> |
