FR2295442B1 - - Google Patents

Info

Publication number
FR2295442B1
FR2295442B1 FR7442138A FR7442138A FR2295442B1 FR 2295442 B1 FR2295442 B1 FR 2295442B1 FR 7442138 A FR7442138 A FR 7442138A FR 7442138 A FR7442138 A FR 7442138A FR 2295442 B1 FR2295442 B1 FR 2295442B1
Authority
FR
France
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
FR7442138A
Other languages
French (fr)
Other versions
FR2295442A1 (fr
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.)
Societe de Fabrication dInstruments de Mesure SFIM SA
Original Assignee
Societe de Fabrication dInstruments de Mesure SFIM SA
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 Societe de Fabrication dInstruments de Mesure SFIM SA filed Critical Societe de Fabrication dInstruments de Mesure SFIM SA
Priority to FR7442138A priority Critical patent/FR2295442A1/fr
Publication of FR2295442A1 publication Critical patent/FR2295442A1/fr
Application granted granted Critical
Publication of FR2295442B1 publication Critical patent/FR2295442B1/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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/0406—Accessories for helmets
    • A42B3/042—Optical devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/0406—Accessories for helmets
    • A42B3/042—Optical devices
    • A42B3/0426—Rear view devices or the like
    • 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
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes
    • 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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0143—Head-up displays characterised by optical features the two eyes not being equipped with identical nor symmetrical optical devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Telescopes (AREA)
FR7442138A 1974-12-19 1974-12-19 Casque a vision arriere Granted FR2295442A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7442138A FR2295442A1 (fr) 1974-12-19 1974-12-19 Casque a vision arriere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7442138A FR2295442A1 (fr) 1974-12-19 1974-12-19 Casque a vision arriere

Publications (2)

Publication Number Publication Date
FR2295442A1 FR2295442A1 (fr) 1976-07-16
FR2295442B1 true FR2295442B1 (lt) 1978-12-22

Family

ID=9146424

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442138A Granted FR2295442A1 (fr) 1974-12-19 1974-12-19 Casque a vision arriere

Country Status (1)

Country Link
FR (1) FR2295442A1 (lt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354733A (en) * 1979-06-15 1982-10-19 Picquet Jean M Rearview device incorporable in helmets
GB8520968D0 (en) * 1985-08-21 1985-09-25 Blower D H Protective headgear
FR2590687B1 (fr) * 1985-11-25 1988-01-22 Sfena Episcope a systeme de visualisation incorpore.
DE3712287C1 (de) * 1987-04-10 1988-09-15 Messerschmitt Boelkow Blohm Vorrichtung zur UEbertragung von optischen Informationen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423267A (en) * 1941-06-30 1947-07-01 Barr & Stroud Ltd Optical system for periscopes
DE1804431A1 (de) * 1968-03-06 1971-06-09 Textron Inc Beobachtungs- oder Betrachtungsbrille und Navigationsvefahren fuer ein Flugzeug
US3833300A (en) * 1973-05-14 1974-09-03 Us Navy Three {37 d{38 {11 weapons sight

Also Published As

Publication number Publication date
FR2295442A1 (fr) 1976-07-16

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Legal Events

Date Code Title Description
ST Notification of lapse