FR2322385A1 - Stabilised image night vision glasses - have Kepler lens system, light intensifier, two plane mirrors and gyroscope stabiliser - Google Patents

Stabilised image night vision glasses - have Kepler lens system, light intensifier, two plane mirrors and gyroscope stabiliser

Info

Publication number
FR2322385A1
FR2322385A1 FR7526458A FR7526458A FR2322385A1 FR 2322385 A1 FR2322385 A1 FR 2322385A1 FR 7526458 A FR7526458 A FR 7526458A FR 7526458 A FR7526458 A FR 7526458A FR 2322385 A1 FR2322385 A1 FR 2322385A1
Authority
FR
France
Prior art keywords
night vision
stabiliser
gyroscope
lens system
lenses
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
FR7526458A
Other languages
French (fr)
Other versions
FR2322385B1 (en
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.)
BARBIER BENARD TURENNE ANC ETS
Original Assignee
BARBIER BENARD TURENNE ANC ETS
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 BARBIER BENARD TURENNE ANC ETS filed Critical BARBIER BENARD TURENNE ANC ETS
Priority to FR7526458A priority Critical patent/FR2322385A1/en
Publication of FR2322385A1 publication Critical patent/FR2322385A1/en
Application granted granted Critical
Publication of FR2322385B1 publication Critical patent/FR2322385B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/644—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for large deviations, e.g. maintaining a fixed line of sight while a vehicle on which the system is mounted changes course
    • 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)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Telescopes (AREA)

Abstract

The stabilised-image night vision glasses comprise a Kepler system (1) of two convergent lenses on the same optical axis, a light intensifying disc (4) with microchannels placed in the common focal plane of the two lenses which recovers the images received between its photocell and light screen, a first plane mirror (5) integral with the rotor of a gyroscopic stabiliser (6) and a second plane mirror (7) in front of the objective lens (8) of the observation glasses. The image focus of the first convergent lens in the Kepler system coincides with the object focus of the second, the ratio between the focal distances of the two lenses being two. The first lens has a very high aperture, e.g. F/1.5 or F/1, to obtain a better efficiency of light intensification.
FR7526458A 1975-08-27 1975-08-27 Stabilised image night vision glasses - have Kepler lens system, light intensifier, two plane mirrors and gyroscope stabiliser Granted FR2322385A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7526458A FR2322385A1 (en) 1975-08-27 1975-08-27 Stabilised image night vision glasses - have Kepler lens system, light intensifier, two plane mirrors and gyroscope stabiliser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7526458A FR2322385A1 (en) 1975-08-27 1975-08-27 Stabilised image night vision glasses - have Kepler lens system, light intensifier, two plane mirrors and gyroscope stabiliser

Publications (2)

Publication Number Publication Date
FR2322385A1 true FR2322385A1 (en) 1977-03-25
FR2322385B1 FR2322385B1 (en) 1979-05-18

Family

ID=9159403

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7526458A Granted FR2322385A1 (en) 1975-08-27 1975-08-27 Stabilised image night vision glasses - have Kepler lens system, light intensifier, two plane mirrors and gyroscope stabiliser

Country Status (1)

Country Link
FR (1) FR2322385A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004813A1 (en) * 1978-04-03 1979-10-17 Societe D'optique, Precision Electronique Et Mecanique - Sopelem Optical observation instrument

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193987A1 (en) * 1972-07-21 1974-02-22 Jungner Instrument Ab

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193987A1 (en) * 1972-07-21 1974-02-22 Jungner Instrument Ab

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004813A1 (en) * 1978-04-03 1979-10-17 Societe D'optique, Precision Electronique Et Mecanique - Sopelem Optical observation instrument
FR2422182A1 (en) * 1978-04-03 1979-11-02 Sopelem OPTICAL OBSERVATION INSTRUMENT

Also Published As

Publication number Publication date
FR2322385B1 (en) 1979-05-18

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Legal Events

Date Code Title Description
ST Notification of lapse