| 摘要 |
<p>PURPOSE:To obtain a reflection information measuring instrument whose structure is simple and whose transfer loss is small by arranging an incident side fiber for allowing a reflected light to be made incident in the periphery of an emitting side fiber for emitting a reference light by putting the end faces in order and allowing the fiber to oppose a main fiber. CONSTITUTION:In a device for radiating a reference light to an object TG to be measured and bringing its reflected light to photometry, an emitting side fiber FB0 for radiating the reference light is provided. Also, a main fiber FB having the core diameter for allowing all the reference light to be made incident is provided so as to be opposed to the end face of this emitting side fiber FB0, so that the reference light is radiated to the object to be measured through this main fiber FB, and also, the reflected light is transferred through its reverse route. Subsequently, an incident side fiber FB1 is arranged in the periphery of the emitting side fiber FB0 by putting the end faces in order, so that the reflected light from the main fiber FB is transferred to a measuring means through an incident side fiber FBi.</p> |
