| 摘要 |
<p>PURPOSE:To obtain a photosensor having a plurality of detection directions. CONSTITUTION:A rotary body 14 having first and second engaging parts 12,13 respectively freely engageable with the intermediate part 1a of an optical fiber 1 at two points is provided. The rotating shaft 15 supported with respect to a main body 11 in a freely rotatable manner is provided to a roughly central part of the rotary body 14. When the external force in the two-dimensional direction crossing the rotating shaft at right angles is applied to the rotating shaft, the rotating shaft and the rotary body are integrally rotated around a rotation direction along with the first and second engaging parts and the optical fiber is deformed and, as a result, a change in the quantity of light is generated to make it possible to perform detection in the two-dimensional direction.</p> |
