JPS57189104A - Light guide for endoscope - Google Patents

Light guide for endoscope

Info

Publication number
JPS57189104A
JPS57189104A JP56075377A JP7537781A JPS57189104A JP S57189104 A JPS57189104 A JP S57189104A JP 56075377 A JP56075377 A JP 56075377A JP 7537781 A JP7537781 A JP 7537781A JP S57189104 A JPS57189104 A JP S57189104A
Authority
JP
Japan
Prior art keywords
light guide
fibers
packing
endoscope
rice
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
JP56075377A
Other languages
Japanese (ja)
Inventor
Toshihiko Hashiguchi
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP56075377A priority Critical patent/JPS57189104A/en
Publication of JPS57189104A publication Critical patent/JPS57189104A/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)
  • Endoscopes (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To obtain a light guide for endoscope with bright illuminating light, by providing light guide fibers for a light guide pipe of polygonal shape formed through the combinatiion of triangles, to obtain an arrangement of heaping up in rice-bag like manner with a closest packing. CONSTITUTION:The cross section of a light guide fiber is circular S and when the fibers are heaped up like heaped straw rice-bags, a triangle-shaped packing is obtained, where the gaps are minimized by forming a closest packing. But when the light guide fibers 2 are arranged in a light guide pipe 1 having circular cross section, the straw rice-bag like arrangement can not be realized, then the packing is only about 78%. A closest packing state can be obtained by heaping up light guide fibers 11 like straw rice-bags by using a light guide pipe 12 formed with the combination of regular triangles. That is, the packing rate of the fibers 11 in the light guide 12 is about 90%, allowing to make the illumination light of a light guide for endoscope bright.
JP56075377A 1981-05-18 1981-05-18 Light guide for endoscope Pending JPS57189104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075377A JPS57189104A (en) 1981-05-18 1981-05-18 Light guide for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075377A JPS57189104A (en) 1981-05-18 1981-05-18 Light guide for endoscope

Publications (1)

Publication Number Publication Date
JPS57189104A true JPS57189104A (en) 1982-11-20

Family

ID=13574443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075377A Pending JPS57189104A (en) 1981-05-18 1981-05-18 Light guide for endoscope

Country Status (1)

Country Link
JP (1) JPS57189104A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007135752A (en) * 2005-11-16 2007-06-07 Hamamatsu Univ School Of Medicine Branch-type imaging fiber apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007135752A (en) * 2005-11-16 2007-06-07 Hamamatsu Univ School Of Medicine Branch-type imaging fiber apparatus

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