FR2681702A1 - Device for displaying information by projection - Google Patents

Device for displaying information by projection Download PDF

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Publication number
FR2681702A1
FR2681702A1 FR9111725A FR9111725A FR2681702A1 FR 2681702 A1 FR2681702 A1 FR 2681702A1 FR 9111725 A FR9111725 A FR 9111725A FR 9111725 A FR9111725 A FR 9111725A FR 2681702 A1 FR2681702 A1 FR 2681702A1
Authority
FR
France
Prior art keywords
mixer
display device
information display
dashboard
cover
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.)
Granted
Application number
FR9111725A
Other languages
French (fr)
Other versions
FR2681702B1 (en
Inventor
Garajedagui Fereydoun
Perrin Bertrand
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.)
Renault SA
Original Assignee
Renault SA
Regie Nationale des Usines Renault
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 Renault SA, Regie Nationale des Usines Renault filed Critical Renault SA
Priority to FR9111725A priority Critical patent/FR2681702A1/en
Publication of FR2681702A1 publication Critical patent/FR2681702A1/en
Application granted granted Critical
Publication of FR2681702B1 publication Critical patent/FR2681702B1/fr
Granted legal-status Critical Current

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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
    • G02B27/0149—Head-up displays 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
    • 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
    • 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
    • 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
    • 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
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye

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

Abstract

Dispositif de visualisation d'informations par projection, comportant un afficheur d'informations (5), dont l'image (9) est transmise par l'intermédiaire d'un ensemble optique de restitution (7) à un mélangeur (8) situé au dessus de la planche de bord (10) du véhicule (2), de façon à superposer cette image (9) au paysage perçu par le conducteur (1) au travers du pare-brise (4) et de ce mélangeur (8), caractérisé en ce que le mélangeur (8) est un mélangeur à transmission variable, tel que dans des conditions de fort éclairement, sa transmission diminue de façon à augmenter le constraste de cette image (9) par rapport au paysage, tandis que dans des conditions de faible éclairement, sa transmission augmente de façon à diminuer la perception des réflexions parasites.Information display device by projection, comprising an information display (5), the image (9) of which is transmitted via an optical reproduction unit (7) to a mixer (8) located at the above the dashboard (10) of the vehicle (2), so as to superimpose this image (9) on the landscape perceived by the driver (1) through the windshield (4) and this mixer (8), characterized in that the mixer (8) is a variable transmission mixer, such that under conditions of strong illumination, its transmission decreases so as to increase the contrast of this image (9) with respect to the landscape, while under conditions low illumination, its transmission increases so as to reduce the perception of parasitic reflections.

Description

DISPOSITIF DE VISUALISATION D'INFORMATIONS PAR PRO.1ECTION
L'invention se rapporte au domaine technique de l'affichage et de la visualisation des informations de conduite dans un véhicule automobile .Elle concerne un dispositif, dit de visualisation-tête haute (Head Up Display ou H.U.D) ,ou de visualisation tête moyenne (H.M.D).DEVICE FOR VIEWING INFORMATION BY PRO.1ECTION
The invention relates to the technical field of display and visualization of driving information in a motor vehicle. It relates to a device, called head-up display (Head Up Display or HUD), or head-up display ( HMD).

L'augmentation de la quantité d'informations à fournir au conducteur et l'aspect d'urgence de certaines d'entre elles favorisent l'introduction dans l'automobile de systèmes de visualisation-tête haute ,ou tête moyenne ,mis en oeuvre depuis plusieurs années dans l'industrie aéronautique. The increase in the quantity of information to be provided to the driver and the urgency aspect of some of it favor the introduction into the automobile of head-up, or medium-head, display systems implemented since several years in the aeronautical industry.

Ce type de développement est illustré notamment par la publication EP 0416222, ayant pour objet un dispositif d'affichage pour véhicule. Ce dispositif est constitué essentiellement d'un afficheur , de miroirs de réflexion ,d'un ensemble optique de restitution ,et d'un mélangeur intégré au pare-brise du véhicule. This type of development is illustrated in particular by publication EP 0416222, having as its object a display device for a vehicle. This device essentially consists of a display, reflection mirrors, an optical restitution unit, and a mixer integrated into the vehicle windshield.

L'expérience montre que l'exploitation d'un dispositif de ce type est entravée par ,l'extrême variabilité de l'éclairement ambiant ,inhérent au déplacement du véhicule. Ce problème est incontournable dans l'exploitation des systèmes H.U.D ou H.M.D.  Experience shows that the operation of a device of this type is hampered by the extreme variability of ambient lighting, inherent in the movement of the vehicle. This problem is unavoidable in the operation of the H.U.D or H.M.D. systems.

En effet le paysage vu à travers le mélangeur ,et superposé par celuici aux informations de conduite ,présente des niveaux de brillance lumineuse très variables. Ces variations affectent considérablement les performances d'un tel système. Elles sont à l'origine de nombreux problèmes de restitution dont notamment:
- la diminution du contraste dans les conditions de fort
éclairement (journées ensoleillées ,neige ,...),
- la perception parasite, par reflet sur le mélangeur, d'éléments
constitutifs du dispositif ,tels que le cadre de l'afficheur ou de
la planche de bord : cette perception parasite intervient
principalement dans des conditions de faible éclairement.Indeed, the landscape seen through the mixer, and superimposed by it on the driving information, presents very variable levels of luminous brightness. These variations considerably affect the performance of such a system. They are the source of many restitution problems, including in particular:
- decrease in contrast in strong conditions
lighting (sunny days, snow, ...),
- the parasitic perception, by reflection on the mixer, of elements
of the device, such as the display frame or
the dashboard: this parasitic perception intervenes
mainly in low light conditions.

Le premier problème mentionné ci-dessus peut être solutionné ,dans certains cas ,par un dispositif électronique permettant d'ajuster la brillance de l'afficheur : cette technique est applicable pour des afficheurs du type V.F.D (Vaccum Fluorescent Display). Par contre, il est moins aisé de faire varier la brillance et le constraste d'un afficheur du type L.C.D (Liquid Cristal Display). Quant au second problème mentionné, on ne connait pas à ce jour de solution satisfaisante. The first problem mentioned above can be solved, in certain cases, by an electronic device making it possible to adjust the brightness of the display: this technique is applicable for displays of the type V.F.D (Vaccum Fluorescent Display). On the other hand, it is less easy to vary the brightness and the contrast of a display of the type L.C.D (Liquid Cristal Display). As for the second problem mentioned, no satisfactory solution has been known to date.

La présente invention se propose de remédier d'une façon simple et automatique aux deux problèmes qui viennent d'être évoqués, sans impliquer de contraintes particulières relatives à la technologie de l'afficheur
Elle concerne un dispositif de visualisation d'informations par projection comportant un afficheur d'informations dont l'image est transmise par l'intermédiaire d'un ensemble optique de restitution à un mélangeur situé au dessus de la planche de bord du véhicule, de façon à superposer cette image au paysage perçu par le conducteur du véhicule au travers du pare-brise et de ce mélangeur . Ce dispositif est caractérisé en ce que le mélangeur est un mélangeur à transmission variable, tel que dans des conditions d'éclairement fort sa transmission diminue de façon à augmenter le constraste de cette image par rapport au paysage, tandis que dans des conditions d'éclairement faible sa transmission augmente, de façon à diminuer la perception des réflexions parasites
Selon un mode de réalisation de l'invention, le mélangeur est une lame photo chrome
Selon un mode de réalisation de l'invention, le mélangeur est une cellule électrochrome commandée par un photodétecteur d'éclairement ambiant.The present invention proposes to remedy in a simple and automatic manner the two problems which have just been mentioned, without implying any particular constraints relating to the technology of the display.
It relates to a device for displaying information by projection comprising an information display, the image of which is transmitted by means of an optical restitution unit to a mixer situated above the dashboard of the vehicle, so to superimpose this image on the landscape perceived by the driver of the vehicle through the windshield and this mixer. This device is characterized in that the mixer is a mixer with variable transmission, such that under strong lighting conditions its transmission decreases so as to increase the contrast of this image with respect to the landscape, while under lighting conditions weak its transmission increases, so as to decrease the perception of stray reflections
According to one embodiment of the invention, the mixer is a photo chrome blade
According to one embodiment of the invention, the mixer is an electrochromic cell controlled by an ambient light photodetector.

Selon un mode de réalisation de l'invention, le mélangeur est une cellule à cristaux liquides, commandée par un photodétecteur d'éclairement ambiant. According to one embodiment of the invention, the mixer is a liquid crystal cell, controlled by an ambient light photodetector.

Selon un mode de réalisation de l'invention, l'afficheur est placé au niveau du plafond du véhicule. According to one embodiment of the invention, the display is placed at the level of the vehicle ceiling.

Selon un mode de réalisation de l'invention ,le mélangeur est intégré au pare-brise du véhicule. According to one embodiment of the invention, the mixer is integrated into the vehicle windshield.

Selon un mode de réalisation de l'invention, le mélangeur est disposé sur la planche de bord
Selon un mode de réalisation de l'invention, le mélangeur pivote autour de son axe d'articulation sur la planche de bord ,de façon à pouvoir être réglé en orientation et rabattu complètement contre celle-ci.According to one embodiment of the invention, the mixer is arranged on the dashboard
According to one embodiment of the invention, the mixer pivots about its axis of articulation on the dashboard, so that it can be adjusted in orientation and folded completely against the latter.

Selon un mode de réalisation de l'invention, le dispositif de visualisation comporte un cache pivotant sur la planche de bord autour du même axe d'articulation que le mélangeur, de façon à pouvoir se plaquer contre celui-ci. According to one embodiment of the invention, the display device comprises a cover pivoting on the dashboard around the same axis of articulation as the mixer, so as to be able to be pressed against the latter.

Selon un mode de réalisation de l'invention ,le dispositif de visualisation comporte un cache coulissant le long de la planche de bord, de façon à pouvoir recouvrir le mélangeur lorsqu'il est rabattu contre celle-ci. According to one embodiment of the invention, the display device comprises a sliding cover along the dashboard, so as to be able to cover the mixer when it is folded against the latter.

Selon un mode de réalisation de l'invention, le cache présente un aspect visuel identique à celui de la planche de bord.  According to one embodiment of the invention, the cover has a visual appearance identical to that of the dashboard.

Selon un mode de réalisation de I'invention, les déplacements du mélangeur et/ou du cache sont motorisés
L'invention sera mieux comprise à la lecture suivante d'un mode de réalisation particulier de celle-ci, en liaison avec les dessins annexés ,sur lesquels:
- la figure 1 représente un premier dispositif de visualisation
d'informations par projection,
- la figure 2 représente un second dispositif de visualisation
d'informations par projection
- la figure 3 illustre le fonctionnement d'un mélangeur de type
actif conforme à l'invention
- les figures 4A et 4B représentent un mélangeur et son cache,
tous deux rabattables par pivotement sur la planche de bord,
- les figures 5A et 5B représentent un mélangeur rab attable par
pivotement, muni d'un cache coulissant sur celle-ci.According to one embodiment of the invention, the movements of the mixer and / or of the cover are motorized
The invention will be better understood on the following reading of a particular embodiment thereof, in conjunction with the appended drawings, in which:
- Figure 1 shows a first display device
projection information,
- Figure 2 shows a second display device
projection information
- Figure 3 illustrates the operation of a type mixer
active according to the invention
FIGS. 4A and 4B represent a mixer and its cover,
both foldable by pivoting on the dashboard,
- Figures 5A and 5B show a rab mixer attable by
pivoting, provided with a sliding cover thereon.

Sur la figure 1 ,on a représenté schématiquement le conducteur
I d'un véhicule automobile 2, assis à son poste de conduite 3. Ce conducteur 1 observe le paysage au travers du pare-brise 4. Un afficheur 5 intégré à la planche de bord 10 délivre des informations de conduite dont l'image 9, transmise par l'intermédiaire de l'ensemble optique de restitution 7, se réfléchit sur le mélangeur 8 intégré au pare-brise 4. Le conducteur 1 aperçoit donc une image virtuelle 9 des informations de conduite de l'afficheur ,située à l'extérieur du véhicule 1, en avant du pare-brise 4. Cette image 9, est superposée au paysage, grâce au mélangeur 8. In Figure 1, the conductor is shown schematically
I of a motor vehicle 2, seated at his driving position 3. This driver 1 observes the landscape through the windshield 4. A display 5 integrated into the dashboard 10 delivers driving information, the image of which 9 , transmitted via the optical restitution assembly 7, is reflected on the mixer 8 integrated into the windshield 4. The driver 1 therefore sees a virtual image 9 of the driving information of the display, located at the outside of the vehicle 1, in front of the windshield 4. This image 9 is superimposed on the landscape, using the mixer 8.

Conformément à l'invention, le mélangeur 8, qu'il soit de type passif ou actif, peut également être disposé sur le dessus de la planche de bord 10. Ce mode de réalisation particulier de l'invention est illustré par la figure 2 .Sur celle-ci, on remarque que l'afficheur 5 est placé au niveau du plafond 17 du véhicule 2. Cette disposition s'avère particulièrement avantageuse, mais ne présente aucun caractère d'obligation. According to the invention, the mixer 8, whether of the passive or active type, can also be placed on top of the dashboard 10. This particular embodiment of the invention is illustrated in FIG. 2. On it, it is noted that the display 5 is placed at the level of the ceiling 17 of the vehicle 2. This arrangement proves to be particularly advantageous, but does not present any character of obligation.

Conformément à l'invention ,le mélangeur 8 mis en oeuvre dans ces dispositifs ,est un mélangeur à transmission variable. Ainsi, dans des conditions d'éclairement important, la transmission de la lame diminue, permettant une augmentation du contraste, tandis que dans des conditions de faible éclairement, la transmission du mélangeur augmente ,de façon à diminuer la perception des reflets parasites. According to the invention, the mixer 8 used in these devices is a mixer with variable transmission. Thus, in high lighting conditions, the transmission of the blade decreases, allowing an increase in contrast, while in low lighting conditions, the transmission of the mixer increases, so as to decrease the perception of stray reflections.

L'invention prévoit I'utilisation de mélangeurs de type passif ou de type actif Dans le cas de la figure 2, le facteur de transmission des mélangeurs utilisés devrait pouvoir varier normalement entre 30% et 80%. Les mélangeurs passifs seront constitués de matériaux photochromes, dont les caractéristiques de transmission se modifient automatiquement en fonction de la lumière ambiante. Les matériaux photochromes utilisables sont par exemple le produit commercialisé sous la référence "PGE" par la Société "CORNING", d'épaisseur 2 mm, qui posséde les caractèristiques citées dessus. Les mélangeurs actifs les mieux adaptés à la mise en oeuvre de l'invention sont les cellules à cristaux liquides ou les cellules électrochromes. La commande de ces cellules est illustrée par la figure 3, sur laquelle on a fait apparaître, outre la cellule 8, ellemême, un photodétecteur 11 de lumière ambiante 12, agissant sur le comportement optique de celle-ci, par l'intermédiaire d'un organe de commande 13.  The invention provides for the use of passive type or active type mixers. In the case of FIG. 2, the transmission factor of the mixers used should normally be able to vary between 30% and 80%. Passive mixers will be made of photochromic materials, the transmission characteristics of which change automatically depending on the ambient light. The photochromic materials which can be used are for example the product sold under the reference "PGE" by the company "CORNING", 2 mm thick, which has the characteristics mentioned above. The active mixers best suited to the implementation of the invention are liquid crystal cells or electrochromic cells. The control of these cells is illustrated in FIG. 3, on which we have shown, in addition to cell 8, itself, a photodetector 11 of ambient light 12, acting on its optical behavior, by means of a control member 13.

Les figures 4A, 4B, SA et 5B illustrent l'intégration du mélangeur 8 sur la planche de bord 10. Sur les figures 4A et 4B, le mélangeur 8 pivote sur celle-ci autour de l'axe d'articulation 14. Ce pivotement permet à la fois de régler l'orientation du mélangeur 8 de façon à obtenir une visualisation optimale des informations affichées, par le conducteur 1, et de rabattre complètement le mélangeur 8 sur la planche de bord 10, lorsque l'utilisation du dispositif n'est plus souhaitée. FIGS. 4A, 4B, SA and 5B illustrate the integration of the mixer 8 on the dashboard 10. In FIGS. 4A and 4B, the mixer 8 pivots thereon around the hinge axis 14. This pivoting allows both to adjust the orientation of the mixer 8 so as to obtain an optimal display of the information displayed, by the driver 1, and to completely fold the mixer 8 on the dashboard 10, when the use of the device does not is more desired.

L'invention prévoit également l'adaptation d'un cache 15, destiné à supprimer les reflets parasites sur le mélangeur 8 notamment lorsqu'il est rabattu sur la planche de bord 10. Selon l'exemple de réalisation des figures 4A et 4b B ,le cache 15 pivote sur la planche de bord 10 autour du même axe 14 d'articulation que le mélangeur 8, de façon à pouvoir se plaquer contre celui-ci dans toutes les positions. Selon l'exemple de réalisation des figures SA et 5B, le cache 15 ou 15' coulisse parallèlement à la planche de bord de façon à venir recouvrir le mélangeur 8 lorsque celui-ci est rabattu contre la planche de bord 10. Dans tous les cas ,les déplacements du mélangeur 8 et du cache 15' pourront avantageusement être pris en charge par un moteur électrique 16, 16', le conducteur disposant alors à son poste de conduite d'organes de commande correspondants, non représentés sur ces figures. Pour des raisons d'uniformité et d'esthétique le cache 15, 15', peut avantageusement être fabriqué dans le même matériau que la planche de bord 10. The invention also provides for the adaptation of a cover 15, intended to suppress parasitic reflections on the mixer 8 in particular when it is folded down on the dashboard 10. According to the embodiment of FIGS. 4A and 4b B, the cover 15 pivots on the dashboard 10 around the same axis 14 of articulation as the mixer 8, so as to be able to be pressed against the latter in all positions. According to the embodiment of Figures SA and 5B, the cover 15 or 15 'slides parallel to the dashboard so as to cover the mixer 8 when it is folded against the dashboard 10. In all cases , the movements of the mixer 8 and of the cover 15 ′ may advantageously be supported by an electric motor 16, 16 ′, the driver then having at his driving position corresponding control members, not shown in these figures. For reasons of uniformity and aesthetics, the cover 15, 15 ′ can advantageously be made of the same material as the dashboard 10.

L'invention permet donc de résoudre le problème de la variabilité de l'éclairement ambiant, en intervenant non pas au niveau de la technologie de l'afficheur 5, mais au niveau du mélangeur 8. Parmi les nombreux avantages liés à la solution proposée, on peut citer notamment:
- l'adaptation automatique du dispositif aux conditions
d'éclairement ambiant (jour, nuit, temps nuageux ou
ensoleillé...), - l'application de la solution proposée à tous les types d'afficheur - l'atténuation des reflets parasites, -1' absence de commande électronique de réglage, dans le cas de l'utilisation d'un mélangeur passif. The invention therefore makes it possible to solve the problem of the variability of the ambient lighting, by intervening not at the level of the technology of the display 5, but at the level of the mixer 8. Among the many advantages linked to the proposed solution, we can cite in particular:
- automatic adaptation of the device to the conditions
ambient lighting (day, night, cloudy weather or
sunny ...), - the application of the proposed solution to all types of display - the reduction of stray reflections, -1 'absence of electronic adjustment control, in the case of the use of a mixer passive.

Claims (12)

REVENDICATIONS 1) Dispositif de visualisation d'informations par projection,1) Device for displaying information by projection, comportant un afficheur d'informations (5), dont l'image (9) est comprising an information display (5), the image (9) of which is transmise par l'intermédiaire d'un ensemble optique de transmitted through an optical assembly of restitution (7) à un mélangeur (8) situé au dessus de la planche return (7) to a mixer (8) located above the board de bord (10) du véhicule (2), de façon à superposer cette edge (10) of the vehicle (2), so as to superimpose this image (9) au paysage perçu par le conducteur (1) au travers du image (9) to the landscape perceived by the driver (1) through the pare-brise (4) et de ce mélangeur (8), caractérisé en ce que le windshield (4) and of this mixer (8), characterized in that the mélangeur (8) est un mélangeur à transmission variable, tel que mixer (8) is a variable transmission mixer, such as dans des conditions de fort éclairement, sa transmission under high light conditions, its transmission diminue de façon à augmenter le constraste de cette image (9) decreases so as to increase the contrast of this image (9) par rapport au paysage, tandis que dans des conditions de in relation to the landscape, while in conditions of faible éclairement, sa transmission augmente de façon à low light, its transmission increases so that diminuer la perception des réflexions parasites. decrease the perception of stray reflections. 2) Dispositif de visualisation d'informations selon la revendication2) Information display device according to claim 1, caractérisé en ce que le mélangeur (8) est une lame 1, characterized in that the mixer (8) is a blade photochrome photochromic 3) Dispositif de visualisation d'informations selon les3) Information display device according to revendications 1 ou 2, caractérisé en ce que le mélangeur (8) Claims 1 or 2, characterized in that the mixer (8) est une cellule électrochrome commandée par un photodétecteur is an electrochromic cell controlled by a photodetector d'éclairement ambiant (11). ambient lighting (11). 4) Dispositif de visualisation d'informations selon les4) Information display device according to revendications 1 ou 2, caractérisé en ce que le mélangeur (8) Claims 1 or 2, characterized in that the mixer (8) est une cellule à cristaux liquides, commandée par un is a liquid crystal cell, controlled by a photodétecteur d'éclairement ambiant (11). ambient light photodetector (11). 5) Dispositif de visualisation d'informations selon l'une5) Information display device according to one quelconque des revendications précédentes, caractérisé en ce  any one of the preceding claims, characterized in que l'afficheur (5) est placé au niveau du plafond (17) du that the display (5) is placed at the level of the ceiling (17) of the véhicule (2) vehicle (2) 6) Dispositif de visualisation d'informations selon l'une6) Information display device according to one quelconque des revendications précédentes, caractérisé en ce any one of the preceding claims, characterized in que le mélangeur (8) est intégré au pare-brise (4) du véhicule that the mixer (8) is integrated into the windshield (4) of the vehicle (2) (2) 7) Dispositif de visualisation d'informations selon l'une7) Information display device according to one quelconque des revendications 1 à 5, caractérisé en ce que le any one of claims 1 to 5, characterized in that the mélangeur est disposé sur la planche de bord (10). mixer is arranged on the dashboard (10). 8) Dispositif de visualisation d'informations selon l'une8) Information display device according to one quelconque des revendications I à 5 et 7, caractérisé en ce que any one of claims I to 5 and 7, characterized in that le mélangeur (8) pivote autour de l'axe d'articulation (14) sur la the mixer (8) pivots around the hinge pin (14) on the planche de bord (10), de façon à pouvoir à pouvoir être réglé dashboard (10), so that it can be adjusted en orientation et rabattu completement contre celle-ci. in orientation and completely folded against it. 9) Dispositif de visualisation d'informations selon la revendication9) Information display device according to claim 8, caracterisé en ce qu'il comporte un cache (15) pivotant sur la 8, characterized in that it comprises a cover (15) pivoting on the planche de bord (10) autour du même axe d'articulation (14) dashboard (10) around the same axis of articulation (14) que le mélangeur (8), de façon à pouvoir se plaquer contre as the mixer (8), so that it can be pressed against celui-ci. this one. 10) Dispositif de visualisation d'informations selon la revendication10) Information display device according to claim 8, caractérisé en ce qu'il comporte un cache (15'), coulissant 8, characterized in that it has a sliding cover (15 ') le long de la planche de bord (10) de façon à pouvoir recouvrir along the dashboard (10) so that it can cover le mélangeur (8), lorsqu'il est rabattu contre celle-ci the mixer (8), when it is folded against it 11) Dispositif de visualisation d'informations selon les11) Information display device according to revendications 9 ou 10, caractérisé en ce que le cache (15,15') claims 9 or 10, characterized in that the cover (15,15 ') présente un aspect visuel identique à celui de la planche de bord has a visual appearance identical to that of the dashboard (10).  (10). 12) Dispositif de visualisation selon les revendications 8 ,9 ou 10,12) Display device according to claims 8, 9 or 10, caractérisé en ce que les déplacements du mélangeur (8) et/ou characterized in that the movements of the mixer (8) and / or du cache (15,15') sont motorisés  of the cover (15,15 ') are motorized
FR9111725A 1991-09-24 1991-09-24 Device for displaying information by projection Granted FR2681702A1 (en)

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Application Number Priority Date Filing Date Title
FR9111725A FR2681702A1 (en) 1991-09-24 1991-09-24 Device for displaying information by projection

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FR2681702A1 true FR2681702A1 (en) 1993-03-26
FR2681702B1 FR2681702B1 (en) 1994-12-30

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WO2010028065A3 (en) * 2008-09-04 2010-12-16 Innovega Inc. Method and apparatus to process display and non-display information
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US5646784A (en) * 1993-06-04 1997-07-08 Gec Marconi Limited Helmet display system
FR2706047A1 (en) * 1993-06-04 1994-12-09 Gec Marconi Avionics Holdings Helmet display system.
US6538624B1 (en) 1993-08-20 2003-03-25 Seiko Epson Corporation Head-mounted image display apparatus
US5739893A (en) * 1993-08-20 1998-04-14 Seiko Epson Corporation Head-mounted image display apparatus
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EP0716329A4 (en) * 1994-06-23 1996-12-04 Seiko Epson Corp Head-mounted display device
FR2726094A1 (en) * 1994-10-24 1996-04-26 Valeo Vision Head-up driving information display for motor vehicle
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US6844980B2 (en) 2001-04-23 2005-01-18 Reveo, Inc. Image display system and electrically actuatable image combiner therefor
WO2002086591A1 (en) * 2001-04-23 2002-10-31 Reveo, Inc. Image display system and electrically actuatable image combiner therefor
WO2007020158A1 (en) * 2005-08-18 2007-02-22 Siemens Vdo Automotive Ag Display system for a motor vehicle
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US7736006B2 (en) 2005-11-21 2010-06-15 Microvision, Inc. Substrate-guided display with improved image quality
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US7589901B2 (en) 2007-07-10 2009-09-15 Microvision, Inc. Substrate-guided relays for use with scanned beam light sources
US7839575B2 (en) 2007-07-10 2010-11-23 Microvision, Inc. Optical device for use with scanned beam light sources
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US8922898B2 (en) 2008-09-04 2014-12-30 Innovega Inc. Molded lens with nanofilaments and related methods
US9348151B2 (en) 2008-09-04 2016-05-24 Innovaga Inc. Molded lens with nanofilaments and related methods
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US12019243B2 (en) 2008-09-04 2024-06-25 Innovega Inc. System and apparatus for see-through display panels
US11579468B2 (en) 2008-09-04 2023-02-14 Innovega Inc. Method and apparatus for constructing a contact lens with optics
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US8142016B2 (en) 2008-09-04 2012-03-27 Innovega, Inc. Method and apparatus for constructing a contact lens with optics
US9874765B2 (en) 2008-09-04 2018-01-23 Innovega, Inc. Method and apparatus for constructing a contact lens with optics
US9251745B2 (en) 2008-09-04 2016-02-02 Innovega, Inc. System and apparatus for see-through display panels
US8441731B2 (en) 2008-09-04 2013-05-14 Innovega, Inc. System and apparatus for pixel matrix see-through display panels
US8922897B2 (en) 2008-09-04 2014-12-30 Innovega Inc. System and apparatus for see-through display panels
US8482858B2 (en) 2008-09-04 2013-07-09 Innovega Inc. System and apparatus for deflection optics
US8520309B2 (en) 2008-09-04 2013-08-27 Innovega Inc. Method and apparatus to process display and non-display information
US8888279B2 (en) 2008-09-04 2014-11-18 Innovega, Inc. Method and apparatus for constructing a contact lens with optics
US8786520B2 (en) 2008-09-04 2014-07-22 Innovega, Inc. System and apparatus for display panels
EP2166400A1 (en) * 2008-09-18 2010-03-24 Kabushi Kaisha Toshiba Head up display having a combiner with a variable light transmission
US8477426B2 (en) 2009-11-10 2013-07-02 Johnson Controls Technology Company Display device, notably for a motor vehicle
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US8531773B2 (en) 2011-01-10 2013-09-10 Microvision, Inc. Substrate guided relay having a homogenizing layer
US8391668B2 (en) 2011-01-13 2013-03-05 Microvision, Inc. Substrate guided relay having an absorbing edge to reduce alignment constraints
FR2974190A1 (en) * 2011-04-15 2012-10-19 Peugeot Citroen Automobiles Sa Head-up display device for car, has reflective translucent surface whose isolation unit isolates image from background, where device superimposes image emitted by light source with background located behind surface through mirror effect
WO2015036363A1 (en) * 2013-09-10 2015-03-19 Continental Automotive Gmbh Head-up display
US9989766B2 (en) 2014-04-17 2018-06-05 tooz technologies GmbH Spectacle lens for a display device that can be fitted on the head of a user and generates an image, and display device with such a spectacle lens
WO2015158828A1 (en) * 2014-04-17 2015-10-22 Carl Zeiss Smart Optics Gmbh Eyeglass lens for a display device which can be placed on the head of a user and generates an image, and display device having such an eyeglass lens
US10705335B2 (en) 2017-03-01 2020-07-07 Boe Technology Group Co., Ltd. Projection screen, vehicle-mounted head-up display and display adjustment method

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