DEVICE FOR MEASURING TRANSMITTANCE OF LIGHT GUIDING FIBER AND METHOD FOR MEASURING TRANSMITTANCE OF LIGHT GUIDING FIBER

摘要

PROBLEM TO BE SOLVED: To provide a device for measuring transmittance of a light guiding fiber and a method for measuring transmittance of the light guiding fiber which can accurately measure transmittance of the light guiding fiber even when the device has high tolerance for a connection posture of the light guiding fiber.;SOLUTION: A device for measuring transmittance of a light guiding fiber comprises: a first integrating sphere 2 which radiates light by receiving light generated by a light source 1 then irregularly reflecting the received light; a second integrating sphere 5 which can selectively perform radiation of light by receiving the light radiated by the first integrating sphere 2 via a light guiding fiber 4 then irregularly reflecting the received light or radiation of light by receiving the light radiated by the first integrating sphere 2 without the light guiding fiber 4 then irregularly reflecting the received light; and a photometer 7 which receives the light radiated by the second integrating sphere.;COPYRIGHT: (C)2014,JPO&INPIT