ZA981241B - Reduction of secondary images in a heads of sighting device - Google Patents

Reduction of secondary images in a heads of sighting device

Info

Publication number
ZA981241B
ZA981241B ZA981241A ZA981241A ZA981241B ZA 981241 B ZA981241 B ZA 981241B ZA 981241 A ZA981241 A ZA 981241A ZA 981241 A ZA981241 A ZA 981241A ZA 981241 B ZA981241 B ZA 981241B
Authority
ZA
South Africa
Prior art keywords
heads
reduction
sighting device
secondary images
images
Prior art date
Application number
ZA981241A
Inventor
Jean-Claude Ebert
Bruno Barbier
Original Assignee
Sextant Avionique
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 Sextant Avionique filed Critical Sextant Avionique
Publication of ZA981241B publication Critical patent/ZA981241B/en

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
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B27/0103—Head-up displays characterised by optical features comprising holographic 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
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • G02B2027/012—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility comprising devices for attenuating parasitic image effects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Viewfinders (AREA)
  • Telescopes (AREA)
ZA981241A 1997-02-14 1998-02-16 Reduction of secondary images in a heads of sighting device ZA981241B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9701734A FR2759788B1 (en) 1997-02-14 1997-02-14 REDUCTION OF INTERFERENCE IMAGES IN A HIGH HEAD VIEWFINDER

Publications (1)

Publication Number Publication Date
ZA981241B true ZA981241B (en) 1998-09-21

Family

ID=9503714

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA981241A ZA981241B (en) 1997-02-14 1998-02-16 Reduction of secondary images in a heads of sighting device

Country Status (5)

Country Link
JP (1) JPH10311963A (en)
DE (1) DE19806310A1 (en)
FR (1) FR2759788B1 (en)
IL (1) IL123308A0 (en)
ZA (1) ZA981241B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9581814B2 (en) 2012-01-20 2017-02-28 Microsoft Technology Licensing, Llc Transparent display for mobile device
RU173768U1 (en) * 2017-01-09 2017-09-11 Акционерное общество "ЛОМО" OPTICAL SYSTEM OF THE PROJECTION ON-BOARD INDICATOR
WO2019154428A1 (en) 2018-02-12 2019-08-15 杭州太若科技有限公司 Augmented reality device, optical system and half mirror employed therein

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1097012A (en) * 1964-03-20 1967-12-29 Elliott Brothers London Ltd Optical systems for superimposing displays upon scenes viewed through curved windows
US4582389A (en) * 1982-02-18 1986-04-15 Flight Dynamics, Inc. Holographic device
JPH081791B2 (en) * 1990-08-20 1996-01-10 三菱電機株式会社 Projection type cathode ray tube
FR2693004A1 (en) * 1992-04-03 1993-12-31 Thomson Csf Optical collimator for visor of protective helmet etc. - comprises sequence of linear polariser, spherical mirror, slide and flat mirror, with reflection of mirrors controlled by surface coatings
US5341230A (en) * 1992-12-22 1994-08-23 Hughes Aircraft Company Waveguide holographic telltale display
JPH09508477A (en) * 1994-02-07 1997-08-26 バーチュアル・アイ／オゥ・インコーポレイテッド Multiplication visual display

Also Published As

Publication number Publication date
DE19806310A1 (en) 1998-10-15
FR2759788A1 (en) 1998-08-21
IL123308A0 (en) 1998-09-24
FR2759788B1 (en) 1999-05-07
JPH10311963A (en) 1998-11-24

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