PROBLEM TO BE SOLVED: To provide photo cleaning having improved efficiency, with a photocatalyst layer formed on the peripheral surface at a light emitting end of optical fiber being reliably excited.SOLUTION: A probe (1) for photo cleaning performs photo cleaning with a photocatalyst excited by irradiation of ultraviolet light which is introduced from the incident end of an optical fiber (2) and emitted from the light emitting end (3). The light emitting end (3) of the optical fiber (2) is provided with a quartz rod (6) having a light leaking part (7) made of a roughened peripheral surface and a roughened apical surface, and a photocatalyst unit (8) which surrounds the light leaking part (7).COPYRIGHT: (C)2015,JPO&INPIT【課題】光ファイバの光出射端周面に形成した光触媒層を確実に励起させ、光浄化処理の効率を向上させる。【解決手段】光ファイバ(2)の光入射端から導入した紫外線を光出射端(3)から照射することにより光触媒を励起させて浄化処理を行う光浄化処理プローブ(1)は、光ファイバ(2)の光出射端(3)に、周面及び先端面を粗面化して漏光部(7)を形成した石英ロッド(6)を配すると共に、その漏光部(7)を囲む光触媒ユニット(8)を設けた。【選択図】図1
