FR2377647A1 - Dual purpose periscope system - has optical lens system for daytime use and image intensifier for use at night - Google Patents

Dual purpose periscope system - has optical lens system for daytime use and image intensifier for use at night

Info

Publication number
FR2377647A1
FR2377647A1 FR7702739A FR7702739A FR2377647A1 FR 2377647 A1 FR2377647 A1 FR 2377647A1 FR 7702739 A FR7702739 A FR 7702739A FR 7702739 A FR7702739 A FR 7702739A FR 2377647 A1 FR2377647 A1 FR 2377647A1
Authority
FR
France
Prior art keywords
daytime
image
night
lens system
optical lens
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
FR7702739A
Other languages
French (fr)
Other versions
FR2377647B3 (en
Inventor
John Charles Staples
David James Samuel Buckland
Kenneth John Noble
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.)
Rank Organization Ltd
Original Assignee
Rank Organization 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 Rank Organization Ltd filed Critical Rank Organization Ltd
Publication of FR2377647A1 publication Critical patent/FR2377647A1/en
Application granted granted Critical
Publication of FR2377647B3 publication Critical patent/FR2377647B3/fr
Granted 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)
  • Telescopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

The lens and the eyepiece system each contain at least one refracting element. The system transmits both in daytime and in nighttime operation a beam containing an image of the observed object. A mechanism for switching over between daytime and nighttime operation contains an optical system which directs the beam past the image intensifier in daytime operation through an auxiliary lens system. This lens system produces an image virtually in the same plane as that of the image of the nighttime intensifier, but displaced sideways in relation to it.
FR7702739A 1976-02-02 1977-02-01 Dual purpose periscope system - has optical lens system for daytime use and image intensifier for use at night Granted FR2377647A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB407676 1976-02-02

Publications (2)

Publication Number Publication Date
FR2377647A1 true FR2377647A1 (en) 1978-08-11
FR2377647B3 FR2377647B3 (en) 1979-10-05

Family

ID=9770290

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702739A Granted FR2377647A1 (en) 1976-02-02 1977-02-01 Dual purpose periscope system - has optical lens system for daytime use and image intensifier for use at night

Country Status (3)

Country Link
DE (1) DE2704185A1 (en)
FR (1) FR2377647A1 (en)
NL (1) NL7701095A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232092C1 (en) * 1982-08-28 1984-03-01 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Day-vision/night-vision device
FR2578063B1 (en) * 1985-02-22 1988-09-02 Trt Telecom Radio Electr LARGE FIELD DAY-NIGHT OBSERVATION APPARATUS
SE450671B (en) * 1985-07-19 1987-07-13 Afsenius Sven Ake BILDFORSTERKARKIKARE
FR2662822B1 (en) * 1990-06-01 1993-05-14 Thomson Trt Defense MULTI-FUNCTIONAL EPISCOPE, WITH LOW SIZE.
FR2665544B1 (en) * 1990-07-31 1993-07-30 Thomson Trt Defense DAY-NIGHT OBSERVATION DEVICE.
CN106979722B (en) * 2017-05-19 2019-02-26 深圳市帝泰光电有限公司 It is a kind of that complete automatically controlled low-light is dual-purpose round the clock takes aim at mirror

Also Published As

Publication number Publication date
FR2377647B3 (en) 1979-10-05
NL7701095A (en) 1978-03-31
DE2704185A1 (en) 1978-03-16

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Legal Events

Date Code Title Description
ST Notification of lapse