| 摘要 |
<p>PURPOSE:To save the labor required for replacing a photoelectric sensor by providing an attachment in front of a photosensor incorporating an amplifier thereby satisfying two purposes with one sensor. CONSTITUTION:When a fiber attachment 30 is removed, such light as passing through a canopy 37 in the light emitted from a light emitting element 35 is emitted, as a parallel light, to the outside whereas the light transmitted through a spherical part is refracted according to the profile of the spherical surface and emitted, as a parallel light, to the outside. In case of an optical fiber type sensor, a fiber attachment 30 is loaded thereto. In this regard, optical fibers 22, 23 are inserted until the optical fibers 22, 23 abut on the stopper 27 of a lens member 20 and then a fastener 25 is turned to bite the optical fibers 22, 23 by means of a stopper protrusion 39. Since the stopper 27 and the canopy 37 of the lens member 20 are formed in parallel with each other, an optical signal emitted from the light emitting element 35 is transmitted without causing any refraction even when the optical signal is passed through the lens member 20.</p> |
