JPS5797508A - Lighting system for endoscope - Google Patents

Lighting system for endoscope

Info

Publication number
JPS5797508A
JPS5797508A JP55173200A JP17320080A JPS5797508A JP S5797508 A JPS5797508 A JP S5797508A JP 55173200 A JP55173200 A JP 55173200A JP 17320080 A JP17320080 A JP 17320080A JP S5797508 A JPS5797508 A JP S5797508A
Authority
JP
Japan
Prior art keywords
flank
light guide
lens
concave lens
reflectivity
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.)
Granted
Application number
JP55173200A
Other languages
Japanese (ja)
Other versions
JPS6361644B2 (en
Inventor
Kimihiko Nishioka
Hisao Yabe
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 JP55173200A priority Critical patent/JPS5797508A/en
Priority to US06/328,392 priority patent/US4529267A/en
Priority to DE19813148599 priority patent/DE3148599A1/en
Publication of JPS5797508A publication Critical patent/JPS5797508A/en
Publication of JPS6361644B2 publication Critical patent/JPS6361644B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements
    • 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

Abstract

PURPOSE:To utilize light even from the periphery of a light guide by providing at least one lens, consisting of a cylindrical reflector having a flank for total reflection, to the emission-side tip of the light guide. CONSTITUTION:In front of a light guide 1, a concave lens 4 made of a single fiber is arranged, and it is equipped with a core 5 and a cladding material 6. The single fiber provided with the cladding material 6 is polished into the concave lens 4. The flank of this concave lens need not be polished and it is unnecessary to vapor-deposit a metallic film on the flank, so its manufacture is facilitated and its reflectivity is nearly 100%, obtaining superior performance as compared with the about 90% reflectivity of a lens having the metallic film vapor-deposited on the flank.
JP55173200A 1980-12-10 1980-12-10 Lighting system for endoscope Granted JPS5797508A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP55173200A JPS5797508A (en) 1980-12-10 1980-12-10 Lighting system for endoscope
US06/328,392 US4529267A (en) 1980-12-10 1981-12-07 Illuminating system for endoscopes
DE19813148599 DE3148599A1 (en) 1980-12-10 1981-12-09 LIGHTING SYSTEM FOR ENDOSCOPES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55173200A JPS5797508A (en) 1980-12-10 1980-12-10 Lighting system for endoscope

Publications (2)

Publication Number Publication Date
JPS5797508A true JPS5797508A (en) 1982-06-17
JPS6361644B2 JPS6361644B2 (en) 1988-11-29

Family

ID=15955955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55173200A Granted JPS5797508A (en) 1980-12-10 1980-12-10 Lighting system for endoscope

Country Status (1)

Country Link
JP (1) JPS5797508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941322U (en) * 1982-09-09 1984-03-16 オリンパス光学工業株式会社 Endoscope illumination device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958847A (en) * 1972-10-04 1974-06-07
JPS5445565U (en) * 1977-09-05 1979-03-29

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958847A (en) * 1972-10-04 1974-06-07
JPS5445565U (en) * 1977-09-05 1979-03-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941322U (en) * 1982-09-09 1984-03-16 オリンパス光学工業株式会社 Endoscope illumination device

Also Published As

Publication number Publication date
JPS6361644B2 (en) 1988-11-29

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