FR3097977B1 - Head-up display device - Google Patents

Head-up display device Download PDF

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Publication number
FR3097977B1
FR3097977B1 FR1906867A FR1906867A FR3097977B1 FR 3097977 B1 FR3097977 B1 FR 3097977B1 FR 1906867 A FR1906867 A FR 1906867A FR 1906867 A FR1906867 A FR 1906867A FR 3097977 B1 FR3097977 B1 FR 3097977B1
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France
Prior art keywords
polarization
component
light beam
display device
head
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.)
Active
Application number
FR1906867A
Other languages
French (fr)
Other versions
FR3097977A1 (en
Inventor
Pierre Mermillod
Thomas Avisse
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.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Comfort and Driving Assistance SAS
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 Valeo Comfort and Driving Assistance SAS filed Critical Valeo Comfort and Driving Assistance SAS
Priority to FR1906867A priority Critical patent/FR3097977B1/en
Publication of FR3097977A1 publication Critical patent/FR3097977A1/en
Application granted granted Critical
Publication of FR3097977B1 publication Critical patent/FR3097977B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • 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
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0185—Displaying image at variable distance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)

Abstract

Un dispositif d’affichage tête haute comprend une première unité de génération d’image (1) conçue pour émettre un premier faisceau lumineux amont polarisé (11), une deuxième unité de génération d’image (2) conçue pour émettre un deuxième faisceau lumineux amont polarisé (22), une lame recombinante (3) configurée pour générer en sortie un faisceau lumineux combiné (44), le faisceau combiné (44) comprenant une première composante et une deuxième composante, la première composante ayant une première direction de polarisation et la deuxième composante ayant une deuxième direction de polarisation orthogonale à la première direction de polarisation, et un système de projection (4) destiné à projeter le faisceau lumineux combiné (44) en direction d’une lame partiellement transparente (5). Ladite première direction de polarisation est inclinée par rapport au plan d’incidence (P) du faisceau lumineux combiné sur la lame partiellement transparente (5) et ladite deuxième direction de polarisation est inclinée par rapport audit plan d’incidence (P). Figure pour l’abrégé : Fig. 1A head-up display device comprises a first image generation unit (1) adapted to emit a first upstream polarized light beam (11), a second image generation unit (2) adapted to emit a second polarized upstream (22), a recombinant plate (3) configured to output a combined light beam (44), the combined beam (44) comprising a first component and a second component, the first component having a first direction of polarization and the second component having a second direction of polarization orthogonal to the first direction of polarization, and a projection system (4) intended to project the combined light beam (44) in the direction of a partially transparent plate (5). Said first direction of polarization is inclined with respect to the plane of incidence (P) of the combined light beam on the partially transparent plate (5) and said second direction of polarization is inclined with respect to said plane of incidence (P). Figure for abstract: Fig. 1

FR1906867A 2019-06-25 2019-06-25 Head-up display device Active FR3097977B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1906867A FR3097977B1 (en) 2019-06-25 2019-06-25 Head-up display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1906867A FR3097977B1 (en) 2019-06-25 2019-06-25 Head-up display device
FR1906867 2019-06-25

Publications (2)

Publication Number Publication Date
FR3097977A1 FR3097977A1 (en) 2021-01-01
FR3097977B1 true FR3097977B1 (en) 2022-05-27

Family

ID=67957122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1906867A Active FR3097977B1 (en) 2019-06-25 2019-06-25 Head-up display device

Country Status (1)

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FR (1) FR3097977B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5423742B2 (en) * 2011-08-27 2014-02-19 株式会社デンソー Head-up display device
KR102071693B1 (en) * 2014-02-07 2020-01-30 엘지전자 주식회사 Head-Up Display Apparatus

Also Published As

Publication number Publication date
FR3097977A1 (en) 2021-01-01

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