GB928215A - Improvements relating to optical viewing devices including electron image amplifiers - Google Patents

Improvements relating to optical viewing devices including electron image amplifiers

Info

Publication number
GB928215A
GB928215A GB4179561A GB4179561A GB928215A GB 928215 A GB928215 A GB 928215A GB 4179561 A GB4179561 A GB 4179561A GB 4179561 A GB4179561 A GB 4179561A GB 928215 A GB928215 A GB 928215A
Authority
GB
United Kingdom
Prior art keywords
viewing devices
optical viewing
devices including
electron image
improvements relating
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
GB4179561A
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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 Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Publication of GB928215A publication Critical patent/GB928215A/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
    • G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Luminescent Compositions (AREA)

Abstract

928,215. Optical viewing devices. OPTISCHE INDUSTRIE DE OUDE DELFT N.V. Nov. 22, 1961 [Nov. 22, 1960], No. 41795/61. Class 97 (1). A device, such as an infra-red telescope, comprises an electronic image amplifier tube 3 and a binocular microscope for viewing the fluorescent image screen 5, this microscope having a single objective 6 with a relative aperture of at least 1: 1 and its focal surface coincident with screen 5, two lenses 7 with parallel axes and an absolute aperture about half that of the objective 6, two eyepieces 10 spaced by the interocular distance and means (e.g. Porro prisms of the second type) to span the light beams from lenses 7 by the interocular distance. The overall magnification of the viewing system is preferably between 10x and 20x, the system having an exit pupil larger than the diameter of the dark-adapted eye.
GB4179561A 1960-11-22 1961-11-22 Improvements relating to optical viewing devices including electron image amplifiers Expired GB928215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL258243 1960-11-22

Publications (1)

Publication Number Publication Date
GB928215A true GB928215A (en) 1963-06-12

Family

ID=19752715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4179561A Expired GB928215A (en) 1960-11-22 1961-11-22 Improvements relating to optical viewing devices including electron image amplifiers

Country Status (1)

Country Link
GB (1) GB928215A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788727A (en) * 1970-11-28 1974-01-29 Konan Camera Lab Co Ltd Optical system of a binocular microscope
FR2470396A1 (en) * 1979-11-22 1981-05-29 Pilkington Brothers Ltd IMPROVED OPTICAL APPARATUS FOR BINOCULAR VISION
US4568153A (en) * 1980-06-12 1986-02-04 Societe D'optique, Precision Electronique & Mecanique-Sopelem Binocular telescope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788727A (en) * 1970-11-28 1974-01-29 Konan Camera Lab Co Ltd Optical system of a binocular microscope
FR2470396A1 (en) * 1979-11-22 1981-05-29 Pilkington Brothers Ltd IMPROVED OPTICAL APPARATUS FOR BINOCULAR VISION
US4392710A (en) 1979-11-22 1983-07-12 Pilkington P. E. Limited Optical apparatus
US4568153A (en) * 1980-06-12 1986-02-04 Societe D'optique, Precision Electronique & Mecanique-Sopelem Binocular telescope

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