FR3082631B1 - TRANSLUCENT PLATE, METHOD OF MANUFACTURING SUCH A PLATE, ASSOCIATED PROJECTION APPARATUS AND HEAD-UP DISPLAY SYSTEM - Google Patents

TRANSLUCENT PLATE, METHOD OF MANUFACTURING SUCH A PLATE, ASSOCIATED PROJECTION APPARATUS AND HEAD-UP DISPLAY SYSTEM Download PDF

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Publication number
FR3082631B1
FR3082631B1 FR1855198A FR1855198A FR3082631B1 FR 3082631 B1 FR3082631 B1 FR 3082631B1 FR 1855198 A FR1855198 A FR 1855198A FR 1855198 A FR1855198 A FR 1855198A FR 3082631 B1 FR3082631 B1 FR 3082631B1
Authority
FR
France
Prior art keywords
translucent plate
plate
head
manufacturing
display system
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
FR1855198A
Other languages
French (fr)
Other versions
FR3082631A1 (en
Inventor
Francois Grandclerc
Pierre Mermillod
Antoine-Camille Petrucci
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.)
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Publication date
Application filed by Valeo Comfort and Driving Assistance SAS filed Critical Valeo Comfort and Driving Assistance SAS
Priority to FR1855198A priority Critical patent/FR3082631B1/en
Publication of FR3082631A1 publication Critical patent/FR3082631A1/en
Application granted granted Critical
Publication of FR3082631B1 publication Critical patent/FR3082631B1/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
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0252—Diffusing elements; Afocal elements characterised by the diffusing properties using holographic or diffractive means
    • 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
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • 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
    • G02B2027/0121—Parasitic image effect attenuation by suitable positioning of the parasitic images

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Une plaque translucide comprend une face d'entrée et une face de sortie, la plaque translucide étant conçue pour diffuser par la face de sortie la lumière incidente sur la face d'entrée conformément à une indicatrice optique de diffusion. L'indicatrice optique de diffusion présente un maximum pour une direction inclinée par rapport à une direction normale à la plaque translucide. Une telle plaque translucide peut être utilisée en tant que diffuseur au sein d'un appareil de projection comportant un dispositif de génération (2) d'un faisceau lumineux d'éclairage de direction principale déterminée (15) et un écran imageur (4) plan. Un procédé de fabrication d'une telle plaque translucide et un système d'affichage tête haute sont également proposés.A translucent plate includes an entrance face and an exit face, the translucent plate being adapted to diffuse light incident on the entrance face from the exit face in accordance with an optical scattering indicator. The scattering optical indicator has a maximum for a direction tilted with respect to a direction normal to the translucent plate. Such a translucent plate can be used as a diffuser within a projection apparatus comprising a device for generating (2) a light beam of illumination of determined principal direction (15) and an imaging screen (4) plane. . A method of manufacturing such a translucent plate and a head-up display system are also provided.

FR1855198A 2018-06-13 2018-06-13 TRANSLUCENT PLATE, METHOD OF MANUFACTURING SUCH A PLATE, ASSOCIATED PROJECTION APPARATUS AND HEAD-UP DISPLAY SYSTEM Active FR3082631B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1855198A FR3082631B1 (en) 2018-06-13 2018-06-13 TRANSLUCENT PLATE, METHOD OF MANUFACTURING SUCH A PLATE, ASSOCIATED PROJECTION APPARATUS AND HEAD-UP DISPLAY SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1855198A FR3082631B1 (en) 2018-06-13 2018-06-13 TRANSLUCENT PLATE, METHOD OF MANUFACTURING SUCH A PLATE, ASSOCIATED PROJECTION APPARATUS AND HEAD-UP DISPLAY SYSTEM
FR1855198 2018-06-13

Publications (2)

Publication Number Publication Date
FR3082631A1 FR3082631A1 (en) 2019-12-20
FR3082631B1 true FR3082631B1 (en) 2021-01-15

Family

ID=63491677

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1855198A Active FR3082631B1 (en) 2018-06-13 2018-06-13 TRANSLUCENT PLATE, METHOD OF MANUFACTURING SUCH A PLATE, ASSOCIATED PROJECTION APPARATUS AND HEAD-UP DISPLAY SYSTEM

Country Status (1)

Country Link
FR (1) FR3082631B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001242411A (en) * 1999-05-10 2001-09-07 Asahi Glass Co Ltd Hologram display device
WO2009044521A1 (en) * 2007-10-03 2009-04-09 Sharp Kabushiki Kaisha Light diffusion sheet and liquid crystal display device
FR2993676B1 (en) * 2012-07-18 2015-03-27 Valeo Etudes Electroniques DEVICE AND METHOD FOR TRANSMITTING LIGHT BEAMS FOR FORMING IMAGE, PROJECTION SYSTEM AND DISPLAY USING THE SAME
KR20140052819A (en) * 2012-10-24 2014-05-07 엘지디스플레이 주식회사 Liquid crystal display device having backlight unit to be able to control viewing angle
JP6260345B2 (en) * 2014-01-06 2018-01-17 株式会社Ｊｖｃケンウッド Intermediate image forming unit and image display apparatus using the same
EP2919059A1 (en) * 2014-03-14 2015-09-16 BAE Systems PLC Fibre-optical diffuser for displays
FR3020147B1 (en) * 2014-04-17 2023-03-10 Valeo Comfort & Driving Assistance IMAGE GENERATION SYSTEM FOR DISPLAY AND ASSOCIATED DISPLAY FOR MOTOR VEHICLE

Also Published As

Publication number Publication date
FR3082631A1 (en) 2019-12-20

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