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AU416830B2 - Dual visor helmet - Google Patents
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AU416830B2 - Dual visor helmet - Google Patents

Dual visor helmet

Info

Publication number
AU416830B2
AU416830B2 AU19398/67A AU1939867A AU416830B2 AU 416830 B2 AU416830 B2 AU 416830B2 AU 19398/67 A AU19398/67 A AU 19398/67A AU 1939867 A AU1939867 A AU 1939867A AU 416830 B2 AU416830 B2 AU 416830B2
Authority
AU
Australia
Prior art keywords
dual visor
visor helmet
helmet
dual
visor
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
AU19398/67A
Other versions
AU1939867A (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.)
Sierra Engineering Co
Original Assignee
Sierra Engineering Co
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 Sierra Engineering Co filed Critical Sierra Engineering Co
Priority to AU19398/67A priority Critical patent/AU416830B2/en
Publication of AU1939867A publication Critical patent/AU1939867A/en
Application granted granted Critical
Publication of AU416830B2 publication Critical patent/AU416830B2/en
Expired 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
    • 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
    • G02B27/0176—Head mounted characterised by mechanical features
    • 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
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G02B2027/0156—Head-up displays characterised by mechanical features with movable elements with optionally usable elements
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
AU19398/67A 1967-03-23 1967-03-23 Dual visor helmet Expired AU416830B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19398/67A AU416830B2 (en) 1967-03-23 1967-03-23 Dual visor helmet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU19398/67A AU416830B2 (en) 1967-03-23 1967-03-23 Dual visor helmet

Publications (2)

Publication Number Publication Date
AU1939867A AU1939867A (en) 1968-09-26
AU416830B2 true AU416830B2 (en) 1971-08-31

Family

ID=3708898

Family Applications (1)

Application Number Title Priority Date Filing Date
AU19398/67A Expired AU416830B2 (en) 1967-03-23 1967-03-23 Dual visor helmet

Country Status (1)

Country Link
AU (1) AU416830B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269259A1 (en) * 1986-10-27 1988-06-01 KAISER AEROSPACE & ELECTRONICS CORPORATION Headgear mounted display visor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269259A1 (en) * 1986-10-27 1988-06-01 KAISER AEROSPACE & ELECTRONICS CORPORATION Headgear mounted display visor

Also Published As

Publication number Publication date
AU1939867A (en) 1968-09-26

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