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JPS56135821A - Observing device - Google Patents

Observing device

Info

Publication number
JPS56135821A
JPS56135821A JP3904380A JP3904380A JPS56135821A JP S56135821 A JPS56135821 A JP S56135821A JP 3904380 A JP3904380 A JP 3904380A JP 3904380 A JP3904380 A JP 3904380A JP S56135821 A JPS56135821 A JP S56135821A
Authority
JP
Japan
Prior art keywords
fiber
light
mirror
optical system
made incident
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
JP3904380A
Other languages
Japanese (ja)
Inventor
Kazuo Hirano
Koichi Tsuno
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP3904380A priority Critical patent/JPS56135821A/en
Publication of JPS56135821A publication Critical patent/JPS56135821A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To make possible the observation of the entire inside circumferential surface of a fine tube by providing an optical system having a circular conical reflecting surface in front of an image fiber. CONSTITUTION:A 360 deg. side observing mirror 4 of a circular cone shape is provided as a reflecting optical system in front of an image fiber 3. The face image of the inside surface 2 of the tube 1 to be observed is changed of its optical path by the mirror 4, is made incident to the fiber 3 and is sent to an observation position. In this case, light is introduced as a light guide 6 as an irradiation function, and the inside surface 2 is irradiated by the light reflected on the 360 deg. side irradiating part 8 of a 360 deg. side observing mirror 7 and the reflected light thereof is made incident to the fiber 3 through a 360 deg. side observing part 9.
JP3904380A 1980-03-28 1980-03-28 Observing device Pending JPS56135821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3904380A JPS56135821A (en) 1980-03-28 1980-03-28 Observing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3904380A JPS56135821A (en) 1980-03-28 1980-03-28 Observing device

Publications (1)

Publication Number Publication Date
JPS56135821A true JPS56135821A (en) 1981-10-23

Family

ID=12542085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3904380A Pending JPS56135821A (en) 1980-03-28 1980-03-28 Observing device

Country Status (1)

Country Link
JP (1) JPS56135821A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977113U (en) * 1982-11-15 1984-05-25 日揮株式会社 image guide device
JPS60177314A (en) * 1984-01-30 1985-09-11 ザ・バブコツク・アンド・ウイルコツクス・カンパニー Irradiation device for irradiating the inner surface of a tubular object
US4717226A (en) * 1983-11-28 1988-01-05 Kei Mori Photoradiator including light conducting rods with frusto-conical end portions
JPH0411512U (en) * 1990-05-22 1992-01-30
KR100888446B1 (en) 2006-12-01 2009-03-11 엘지전자 주식회사 Light pipes containing cone shaped reflectors
US7565050B2 (en) 2006-10-13 2009-07-21 Lg Electronics, Inc. Light pipe having an improved structure of prisms

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911323A (en) * 1972-06-01 1974-01-31
JPS4929116U (en) * 1972-05-24 1974-03-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4929116U (en) * 1972-05-24 1974-03-13
JPS4911323A (en) * 1972-06-01 1974-01-31

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977113U (en) * 1982-11-15 1984-05-25 日揮株式会社 image guide device
US4717226A (en) * 1983-11-28 1988-01-05 Kei Mori Photoradiator including light conducting rods with frusto-conical end portions
JPS60177314A (en) * 1984-01-30 1985-09-11 ザ・バブコツク・アンド・ウイルコツクス・カンパニー Irradiation device for irradiating the inner surface of a tubular object
JPH0411512U (en) * 1990-05-22 1992-01-30
US7565050B2 (en) 2006-10-13 2009-07-21 Lg Electronics, Inc. Light pipe having an improved structure of prisms
KR100888446B1 (en) 2006-12-01 2009-03-11 엘지전자 주식회사 Light pipes containing cone shaped reflectors

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