JPS57146203A - Method and device for recovering light transmittivity of optical fiber - Google Patents

Method and device for recovering light transmittivity of optical fiber

Info

Publication number
JPS57146203A
JPS57146203A JP56022082A JP2208281A JPS57146203A JP S57146203 A JPS57146203 A JP S57146203A JP 56022082 A JP56022082 A JP 56022082A JP 2208281 A JP2208281 A JP 2208281A JP S57146203 A JPS57146203 A JP S57146203A
Authority
JP
Japan
Prior art keywords
light
optical fiber
transmissivity
light transmissivity
decreased
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56022082A
Other languages
Japanese (ja)
Inventor
Takuo Kojima
Kuniaki Ishibashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujinon Corp
Original Assignee
Fujinon Corp
Fuji Photo Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujinon Corp, Fuji Photo Optical Co Ltd filed Critical Fujinon Corp
Priority to JP56022082A priority Critical patent/JPS57146203A/en
Priority to FR8202432A priority patent/FR2500201A1/en
Priority to CA000396344A priority patent/CA1192071A/en
Priority to DE8282300813T priority patent/DE3268730D1/en
Priority to EP82300813A priority patent/EP0058574B1/en
Priority to US06/349,619 priority patent/US4523806A/en
Priority to AT82300813T priority patent/ATE17790T1/en
Priority to GB8204625A priority patent/GB2094021B/en
Priority to AU80540/82A priority patent/AU541958B2/en
Priority to AR288452A priority patent/AR229690A1/en
Publication of JPS57146203A publication Critical patent/JPS57146203A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To recover the light transmissivity of an optical fiber which has turned yellow owing to irradiation with radiation, such as X rays gamma rays and decreased in light transmissivity, by causing light emitted from a light source, such as a halogen lamp, to illuminate the end surface of the optical fiber. CONSTITUTION:On the end surface 1a of an optical fiber bundle 1 for image transfer which has turned yellow owing to radiation of X rays, etc., and then decreased in light transmissivity, light emitted from a light source 2 is focused through a rotary elliptic mirror 3. The light source 2 uses, for example, a 150w halogen lamp and is turned on for 15min, 30min, 1hr, 2hr, and 10hr, and then its light transmissitivity is recovered gradually up closely to light transmissivity before radiation irradiation by 10hr light incidence. The yellow color comes off. Thus, the light transmissivity of the optical fiber having decreased in light transmissivity is recovered, and a recovering device is obtained.
JP56022082A 1981-02-17 1981-02-17 Method and device for recovering light transmittivity of optical fiber Pending JPS57146203A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP56022082A JPS57146203A (en) 1981-02-17 1981-02-17 Method and device for recovering light transmittivity of optical fiber
FR8202432A FR2500201A1 (en) 1981-02-17 1982-02-15 METHOD AND APPARATUS FOR REINSTALLING THE OPTICAL TRANSMITTANCE OF A BEAM OF OPTICAL FIBERS AFTER REDUCTION BY IRRADIATION
CA000396344A CA1192071A (en) 1981-02-17 1982-02-16 Method and apparatus for recovering a light transmittance of an image transmitting optical fiber bundle used in a fiberoptic endoscope
DE8282300813T DE3268730D1 (en) 1981-02-17 1982-02-17 Method of and apparatus for restoring the light transmittance of an image transmitting optical fiber bundle used in a fiberoptic endoscope
EP82300813A EP0058574B1 (en) 1981-02-17 1982-02-17 Method of and apparatus for restoring the light transmittance of an image transmitting optical fiber bundle used in a fiberoptic endoscope
US06/349,619 US4523806A (en) 1981-02-17 1982-02-17 Method and apparatus for restoring the light transmittance of an image-transmitting optical fiber bundle used in a fiber optic endoscope
AT82300813T ATE17790T1 (en) 1981-02-17 1982-02-17 METHOD AND APPARATUS FOR RESTORING THE LIGHT TRANSMITTING PROPERTIES OF AN IMAGE TRANSMITTING OPTICAL FIBER BUNDLE FOR USE IN A FIBER END SCOPE.
GB8204625A GB2094021B (en) 1981-02-17 1982-02-17 Restoring the light transmittance of an image transmitting optical fiber bundle
AU80540/82A AU541958B2 (en) 1981-02-17 1982-02-17 Apparatus for recovering a light transmittance of an image transmitting optical fiber bundle
AR288452A AR229690A1 (en) 1981-02-17 1982-02-17 APPARATUS TO RECOVER THE REDUCTION INDUCED BY IRRADIATION IN THE TRANSMITANCE OF LIGHT FROM A BEAM OF OPTICAL FIBERS TRANSMITTING IMAGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56022082A JPS57146203A (en) 1981-02-17 1981-02-17 Method and device for recovering light transmittivity of optical fiber

Publications (1)

Publication Number Publication Date
JPS57146203A true JPS57146203A (en) 1982-09-09

Family

ID=12072951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56022082A Pending JPS57146203A (en) 1981-02-17 1981-02-17 Method and device for recovering light transmittivity of optical fiber

Country Status (1)

Country Link
JP (1) JPS57146203A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57192532A (en) * 1981-05-22 1982-11-26 Fuji Photo Optical Co Ltd Endoscope apparatus
WO1983002166A1 (en) * 1981-12-07 1983-06-23 Go, Kouji Method of reproduction in fiber optical system
JPS62103014U (en) * 1985-12-16 1987-07-01
JPH05180704A (en) * 1992-01-07 1993-07-23 Tokyo Electric Power Co Inc:The Temperature distribution measuring method utilizing optical fiber
EP2520213A4 (en) * 2010-10-12 2017-07-05 Olympus Corporation Endoscope

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760302A (en) * 1980-09-29 1982-04-12 Furukawa Electric Co Ltd:The Method for reducing transmission loss of optical fiber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760302A (en) * 1980-09-29 1982-04-12 Furukawa Electric Co Ltd:The Method for reducing transmission loss of optical fiber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57192532A (en) * 1981-05-22 1982-11-26 Fuji Photo Optical Co Ltd Endoscope apparatus
WO1983002166A1 (en) * 1981-12-07 1983-06-23 Go, Kouji Method of reproduction in fiber optical system
JPS62103014U (en) * 1985-12-16 1987-07-01
JPH05180704A (en) * 1992-01-07 1993-07-23 Tokyo Electric Power Co Inc:The Temperature distribution measuring method utilizing optical fiber
EP2520213A4 (en) * 2010-10-12 2017-07-05 Olympus Corporation Endoscope

Similar Documents

Publication Publication Date Title
DE3270685D1 (en) An illuminating device having optical light guide formed as fibre bundle
EP0400367A3 (en) Exterior wall element for buildings
EP0123153A3 (en) Plate making process using positive working presensitized plate
DK645787A (en) BIKE LIGHT
JPS57146203A (en) Method and device for recovering light transmittivity of optical fiber
JPS5420317Y2 (en)
GB2009391A (en) Solar heaters
JPS5432318A (en) Lens for micro-reduction photography
JPS5493974A (en) Projection-system mask alignment unit
JPS51149004A (en) Optical apparatus
JPS5432317A (en) Lens for micro-reduction photography
JPS538012A (en) Facsimile trnsmission unit
JPS6484206A (en) Optical apparatus
JPS5717903A (en) Preventing apparatus for generation of heat at edge of optical fiber bundle
JPS5417027A (en) Image forming system
JPS53133449A (en) Lighting device for original of electrophotographic copier
JPS5723916A (en) Image-formation optical device
JPS51144614A (en) Adapter optical system for flash light source
GB2011069A (en) Photoelectric leak detection
JPS53126648A (en) Apparatus for lighting number plate of automobile
JPS5674643A (en) Optical information reader
JPS5310433A (en) Illuminating device for copying operation
RU94021335A (en) DEVICE FOR PHYSIOTHERAPEUTIC EXPOSURE
JPS5438493A (en) Remote operation recognizing and indicating
JPS52119321A (en) Obtaining uniform distribution of illumination of image for projector