JPS57168212A - Clear and hard endoscope - Google Patents

Clear and hard endoscope

Info

Publication number
JPS57168212A
JPS57168212A JP57040353A JP4035382A JPS57168212A JP S57168212 A JPS57168212 A JP S57168212A JP 57040353 A JP57040353 A JP 57040353A JP 4035382 A JP4035382 A JP 4035382A JP S57168212 A JPS57168212 A JP S57168212A
Authority
JP
Japan
Prior art keywords
lens
adjacent
convexes
clear
block
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
JP57040353A
Other languages
Japanese (ja)
Inventor
Nobuo Yamashita
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 JP57040353A priority Critical patent/JPS57168212A/en
Publication of JPS57168212A publication Critical patent/JPS57168212A/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)
  • Endoscopes (AREA)

Abstract

PURPOSE:To increse the quantity of transmitted light by bringing adjacent optical elements into contact with each other without using a spacing tube. CONSTITUTION:Field lenses 11, parallel plane glass blocks 13 and an image forming lens 12 are arranged in an optical tube 14 in a state where all of the adjacent convexes and planes such as both convexes 11a, 11b of each lens 11 and one side 13a of each block 13 adjacent to the lens 11, and both convexes 12, 12b of the lens 12 and one side 13a or 13b of each block 13 adjacent to the lens 12 are in contact with each other in the vicinity of the optical axes. The glass blocks 13 correct the astigmatism and increase the brightness of an image.
JP57040353A 1982-03-15 1982-03-15 Clear and hard endoscope Pending JPS57168212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57040353A JPS57168212A (en) 1982-03-15 1982-03-15 Clear and hard endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57040353A JPS57168212A (en) 1982-03-15 1982-03-15 Clear and hard endoscope

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50041832A Division JPS51117488A (en) 1975-04-08 1975-04-08 Bright hard endscope

Publications (1)

Publication Number Publication Date
JPS57168212A true JPS57168212A (en) 1982-10-16

Family

ID=12578261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57040353A Pending JPS57168212A (en) 1982-03-15 1982-03-15 Clear and hard endoscope

Country Status (1)

Country Link
JP (1) JPS57168212A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130557A2 (en) * 1983-06-30 1985-01-09 Dyonics, Inc. Gradient-index lens optical system
WO2000054089A1 (en) * 1999-03-08 2000-09-14 Karl Storz Gmbh & Co. Kg Image transmission system for endoscopes and method of producing a rod lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130557A2 (en) * 1983-06-30 1985-01-09 Dyonics, Inc. Gradient-index lens optical system
WO2000054089A1 (en) * 1999-03-08 2000-09-14 Karl Storz Gmbh & Co. Kg Image transmission system for endoscopes and method of producing a rod lens

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