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1. 发明专利

JPH0548591B2 失效
公开(公告)号：JPH0548591B2
公开(公告)日：1993-07-21
申请号：JP303986
申请日：1986-01-10
申请人： MITSUBISHI CABLE IND LTD
发明人： KUSUI AKIO , MORITA SHUJI , KUDO TOSHIO , TANAKA YASUO , ITO HIROTAKA
IPC分类号： H01B7/00 , H01R13/648

2. 发明专利

JPS6416985A OPTICAL PROBE 失效
公开(公告)号：JPS6416985A
公开(公告)日：1989-01-20
申请号：JP17249787
申请日：1987-07-10
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , MITSUBISHI CABLE IND LTD
发明人： IINUMA HIDEYASU , KIMURA MASAKATSU , TANAKA YASUO , HIROSE WATARU , HACHIWAKA MASAYOSHI
IPC分类号： G01N21/84 , G01B11/30 , G01N21/88 , G01V8/16 , G02B6/00
摘要： PURPOSE:To make detection and measurement highly accurate by bundling many extremely thin optical fibers so that base end surfaces and tip surfaces are arranged matching with each other one to one, projecting light in a spot on the base end surfaces, and projecting the light in a spot from the tip end surfaces. CONSTITUTION:A light guide 1 is formed by bundling many extremely thin optical fibers 11 so that the base end surfaces 7 and tip end surfaces 9 are arranged matching with each other one to one. The external diameter of the base end surface 7 can be set much larger than the diameter Di of the incidence spot, so even if the optical axis of the intense extremely small spot of laser light R shifts slightly from the center of the base end surface 7, the light is securely received and sent to the tip. Further, the light can be transmitted while the irradiation diameter D0 from the tip end surface 9 is held equal to the incident spot diameter Di, so intense light can be projected on an object 10 to be measured to a small irradiation diameter D0 and high-accuracy detection and measurement are performed.

3. 发明专利

JPS63188108A OPTICAL FIBER BUNDLE 失效
公开(公告)号：JPS63188108A
公开(公告)日：1988-08-03
申请号：JP2069887
申请日：1987-01-31
申请人： MITSUBISHI CABLE IND LTD
发明人： ROKUNOHE MITSURU , UCHIUMI ATSUSHI , TANAKA YASUO
IPC分类号： G02B6/04
摘要： PURPOSE:To obtain a satisfactorily flexible optical fiber bundle by forming the section near both end parts in the lengthwise direction into an approximately circular shape and forming the section in the other parts in the lengthwise direction into a sheet shape. CONSTITUTION:An optical fiber 1 consists of a core and a clad whose refractive index is lower than that of the core, and a skin a pipe 2 consists of a hollow glass pipe, and plural optical fiber 1 are cut by a prescribed length and are bundled, stored, and close packed in the skin pipe 2. At this time, the section of this optical fiber bundle is circular as the skin pipe 2. Thereafter, the optical fiber bundle is drawn and has the diameter reduced to obtain an optical fiber bundle which is unified by sticking partially or throughout in the lengthwise direction. The obtained optical fiber bundles is heating again and the side face having at least a prescribed length in the lengthwise direction of the skin pipe 2 is pressed and crushed to form the section of a part 4 having the prescribed length into a sheet shape. Thus, the radius of allowable bend is reduced.

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