GB926779A - Improvements in or relating to endoscopic telescopes - Google Patents

Improvements in or relating to endoscopic telescopes

Info

Publication number
GB926779A
GB926779A GB1171961A GB1171961A GB926779A GB 926779 A GB926779 A GB 926779A GB 1171961 A GB1171961 A GB 1171961A GB 1171961 A GB1171961 A GB 1171961A GB 926779 A GB926779 A GB 926779A
Authority
GB
United Kingdom
Prior art keywords
block
refractive index
transmission system
telescopes
endoscopic
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.)
Expired
Application number
GB1171961A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB926779A publication Critical patent/GB926779A/en
Expired 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
    • 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
    • G02B23/2407—Optical details
    • G02B23/2446—Optical details of the image relay
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/02—Observation devices permitting vision but shielding the observer

Abstract

926,779. Viewing equipment for radio-active environment. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 30, 1961 [April 1, 1960], No. 11719/61. Class 39 (4). [Also in Group XX] An endescope for observing the inside of an enclosure containing radio-active products or installations comprises, between objective 1 and eyepiece 2, a transmission system 3 consisting of members 4, 5, each formed by convex lenses 6 cemented to a cylindrical block. The refractive index of the block differs from that of the lenses and the length and the block is equal to the product of this refractive index and the lens focal length so that each member is telecentric. More than one transmission system may be used.
GB1171961A 1960-04-01 1961-03-30 Improvements in or relating to endoscopic telescopes Expired GB926779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR823147A FR1260786A (en) 1960-04-01 1960-04-01 Endoscopic scope

Publications (1)

Publication Number Publication Date
GB926779A true GB926779A (en) 1963-05-22

Family

ID=8728449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1171961A Expired GB926779A (en) 1960-04-01 1961-03-30 Improvements in or relating to endoscopic telescopes

Country Status (4)

Country Link
CH (1) CH370257A (en)
FR (1) FR1260786A (en)
GB (1) GB926779A (en)
LU (1) LU39966A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151950A (en) * 1974-10-31 1976-05-07 Olympus Optical Co SODENSOKOGAKUKEI
DE2619393A1 (en) * 1975-04-30 1976-11-11 Secr Social Service Brit OPTICS

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206759A (en) * 1989-04-14 1993-04-27 Olympus Optical Co., Ltd. Image relaying optical system
US5142410A (en) * 1989-04-14 1992-08-25 Olympus Optical Co., Ltd. Image relaying optical system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151950A (en) * 1974-10-31 1976-05-07 Olympus Optical Co SODENSOKOGAKUKEI
DE2619393A1 (en) * 1975-04-30 1976-11-11 Secr Social Service Brit OPTICS

Also Published As

Publication number Publication date
CH370257A (en) 1963-06-30
LU39966A1 (en) 1961-05-21
FR1260786A (en) 1961-05-12

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