EP2195698A1 - Dispositif d'affichage tête haute - Google Patents

Dispositif d'affichage tête haute

Info

Publication number
EP2195698A1
EP2195698A1 EP08805003A EP08805003A EP2195698A1 EP 2195698 A1 EP2195698 A1 EP 2195698A1 EP 08805003 A EP08805003 A EP 08805003A EP 08805003 A EP08805003 A EP 08805003A EP 2195698 A1 EP2195698 A1 EP 2195698A1
Authority
EP
European Patent Office
Prior art keywords
combiner
head
projection unit
display according
display
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.)
Withdrawn
Application number
EP08805003A
Other languages
German (de)
English (en)
Inventor
Hans-Georg Heckmann
Friedrich Neuner
Johannes Dumanski
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.)
Qioptiq Photonics GmbH and Co KG
Original Assignee
Linos Photonics GmbH and Co KG
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 Linos Photonics GmbH and Co KG filed Critical Linos Photonics GmbH and Co KG
Publication of EP2195698A1 publication Critical patent/EP2195698A1/fr
Withdrawn legal-status Critical Current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
    • G02B27/0101—Head-up displays characterised by optical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • B60K35/53—Movable instruments, e.g. slidable
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/60—Structural details of dashboards or instruments
    • B60K2360/66—Projection screens or combiners
    • 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
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0181—Adaptation to the pilot/driver
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/26—Reflecting filters

Definitions

  • the invention relates to a head-up display according to the preamble of claim 1.
  • Classic head-up displays combine information generated for the driver of a vehicle with the scene in front of the vehicle.
  • the superimposed signal is displayed as a virtual image in front of the windshield, so that the driver can observe the surroundings and the displayed data as simultaneously as possible without having to accommodate the eye differently.
  • head-up displays have long been known in various embodiments, so that the demands on the image quality and the size of the eyebox and the image field, which leads to large and therefore technically problematic image angles, are constantly increasing.
  • head-up displays are multi-colored.
  • head-up displays in the field of water and land vehicles unlike in the aircraft sector, they must be able to be produced as inexpensively as possible.
  • the invention has for its object to realize a high-quality head-up display height adjustable.
  • a separate combiner which is movably mounted.
  • the display of the image on a separate, moveably mounted combiner opens the possibility, via a pivoting movement of the combiner, the vertical offset of a component of the projection unit in a vertical offset of the beam at the viewer's location (ie a vertical offset of the eyebox) without height offset of the virtual image to reach the location of the windshield.
  • a separate combiner offers the possibility of realizing a large eyebox with an equally large viewing angle while maintaining a good image quality, especially a multi-color image by the combiner is provided with a greater curvature or refractive power compared to a windshield and with respect Image quality can be optimally designed. This makes it possible to maintain the image quality even with a pivoting movement of the beam path.
  • the combiner of the head-up display when using a combiner to view the virtual image, it is also not necessary for the combiner of the head-up display to be at the height of the windshield. It would also be possible to provide a combiner advantageously fully mirrored height of the dashboard. This has the advantage that the entire windscreen is available for visibility to the outside.
  • the movement is coupled by the beam displaceable component of the projection unit and the combiner.
  • the coupling can be carried out electronically, preferably via two coordinated drive units. It is easier to couple mechanically, via a drive unit which is in communication with and drives the movable component, the combiner or the coupling and a mechanical coupling unit of the two components. In the latter case, a drive is sufficient and thus more cost-effective, the coupling takes place directly.
  • the ratios of incidence and reflection angles of the combiner and projection unit must be maintained, so that no optical errors, distortions or distortions occur.
  • the combiner must not move out of the beam path. Therefore, the movement of the combiner is preferably tuned to the movement of the optical component.
  • the combiner and the beam displacing optical component rotate about the same axis in the projection unit.
  • the beam displacement takes place via a simple, controlled, coupled movement of the component of the projection unit and of the combiner.
  • the common Axis is advantageously on the surface of the component of the projection unit.
  • the optical component of the projection unit performs a rotary movement, the combiner a pivoting movement.
  • the coupling between combiner and movably arranged component of the projection unit includes a translation. This allows the movement of the components at different angular velocity. As a result, the mechanical conditions can be optimally adapted to the beam path despite direct coupling.
  • the coupling between the combiner and the movably arranged optical component is realized via a coupling gear.
  • the mechanical coupling is done with translation by means of a gear transmission.
  • the required translation over a correspondingly selected number of teeth can be easily realized.
  • the movement of the components takes place by means of a drive which is directly or indirectly connected to one of the coupled components and / or the coupling.
  • This allows an electronic height adjustment of the head-up display done.
  • This has the particular advantage that the height adjustment can be done automatically in the context of a so-called eye-tracking, so an automatic tracking on the basis of the movements of the eyes.
  • the movement of the eye is detected, electronically converted and converted via the drive into a tracking movement of the optical components of the combiner and the movably arranged optical unit of the projection unit.
  • This is particularly advantageous because of the invention, because according to the invention only a few, lightweight optical components have to be moved to small ways to effect height adjustment of the head-up display, but not the entire head-up display, including electronics.
  • This realization of dynamic tracking opens up the possibility of making the Eyebox smaller and thus makes it possible to dimension the optics components smaller and thus lighter and cheaper.
  • a manual adjustment may also be realized, e.g. works by means of an adjusting lever without drive unit.
  • a plane mirror is arranged between the projection unit and the combiner as a movably arranged component, which projects the projected image onto the combiner.
  • Both plane mirror and combiner are movable and preferably mounted so that coupled via a coupled movement of only these two components height adjustment of the eye-box to the driver or the seat adjustment is possible without affecting the quality of the image.
  • the components of the projection unit which are more complicated to adjust and more prone to errors, remain immobile in this advantageous construction.
  • the cover of the head-up display can remain in its global position. Their irradiation with a modified angle of incidence during the movement of the combiner and plane mirror, depending on their thickness, only results in a very slight loss of quality. When installed in different vehicles, but this can be installed according to the nominal angle of incidence so that no losses must be taken. Thus, a particularly great flexibility in terms of installation in different vehicles can be achieved.
  • a so-called triple-notch coating which is specially adapted to the color spectra, ie a coating which reflects the projection unit light projected onto the combiner only in three narrow wavelength ranges, is applied to the reflective concave side of the combiner , This makes it possible to realize a multi-color head-up display, which allows maximum amount of light from the environment to pass through the combiner and still provides a color display image.
  • the combiner is preferably designed as a freeform surface. This also supports the compact design of the optical projection unit with a large eye box.
  • this form of height adjustment can be used particularly advantageously in all vehicles, watercraft and even aircraft.
  • FIG. 1 Schematically an inventive head-up display in a first embodiment
  • Fig. 2 shows the coupling of plane mirror and combiner by means of coupling gear
  • Fig. 3a, b the coupling of plane mirror and combiner by means of gear transmission.
  • FIG. 1 shows a schematic representation of the structure of a head-up display according to the invention, which is installed in a motor vehicle.
  • the head-up display has a projection unit 1 and a combiner unit 2.
  • a plane mirror 3 which is connected via a coupling gear 4 and an extension 5 with the combiner 2 and a cover 6, which includes the optical unit of the head-up display in the cockpit of the motor vehicle.
  • Projection unit 1, plane mirror 3 and coupling gear 4 are located below the cover 6, the combiner unit 2 is located above the cover in front of the windshield. 7
  • the projection unit 1 of the head-up display according to the invention has an image generating device 8, which is designed as illuminated by light emitting diodes or other light sources light modulator such as. LCD or DMD or as a self-luminous display. Furthermore, the projection unit 1 has a combination of a first lens 9, a second lens 10 and a manganese mirror 11 arranged between these two lenses 9, 10.
  • the image to be displayed by the head-up display is generated by means of an LCD 8 illuminated by tricolor LED 's .
  • This image to be displayed is displayed via the opti- see elements 9, 10 and 11 of the projection unit 1 shown in an intermediate image 12.
  • a manganese mirror 11 is arranged between the positive lenses 9 and 10, via which both a folding of the beam path and a correction of the chromatic aberrations caused by the lenses 9 and 10 are undertaken.
  • the Manginapt 11 was positioned so that it lies in the aperture.
  • further EIe- elements, for. B. be avoided with other dispersions or diffractive optical elements for color correction.
  • the color correction is ensured solely by the combination of positive lens 9 for the telecenthe image of the image produced on the display 8, the Mangin mirror 11 with its negative lens and another positive lens 10 arranged in the beam path after the Mangin mirror.
  • the intermediate image 12 is projected via a plane mirror 3 and a combiner 2 in a virtual image, where it can be viewed by the driver of the motor vehicle.
  • the Combiner 2 is relatively strongly curved, it has a high refractive power. This makes it possible to detect the rays running from the edge of the eye box to the edge of the virtual image without having to use extremely large optical elements in the projection unit 1.
  • the Combiner 2 is designed as a freeform surface and coated several times. Double-image suppression, reflectivity and transmission are ensured by this coating. In particular, mention should be made here of the so-called triple-notch coating, a coating which permits increased reflectivity with constant average transmission for three specific wavelength ranges. This specially adapted to the color spectra coating is mounted on the reflective concave side of the combiner 2.
  • Both plane mirror 3 and combiner 2 are movably mounted and connected via a coupling gear 4 and an extension 5 of the same.
  • a coupling gear 4 about a movement of the linkage 4 by means of a drive unit, not shown, the image or the eye box of the observer is adjusted in height and can thus be adapted to the seat adjustment or the size of the viewer.
  • the plane mirror 3 must be turned at half the angular speed.
  • the combiner 2 and the plane mirror 3 should rotate about the same axis, which should preferably lie on the surface of the plane mirror 3. This is made possible by the coupling gear 4 shown in FIG.
  • a multi-link coupling gear 4 is connected to the plane mirror 3 and moves over an extension 5 also not seen in this figure combiner 2.
  • a gear member 41 is fixedly connected to the plane mirror 3, another gear member 42 with the extension of the 5.
  • the Fulcrum 42 is as fixed as fulcrum 44. All other fulcrums are movable and can change their position.
  • the joint- member 45 which motivates the movement of the plane mirror 3 is only half as long as the hinge member 46, which causes the movement of the combiner 2. This ensures that the combiner 2 is always rotated by twice the angular range of the plane mirror 3, so that the beam incidence angle does not change.
  • the glass cover 6 is not moved in the height adjustment. She can stay in her position.
  • FIGS. 3a and 3b A further embodiment for the translation of the movement in the coupling of combiner 2 and plane mirror 3 is shown in FIGS. 3a and in a slightly enlarged view in FIG. 3b.
  • the rotational movement of the plane mirror 3, is effected via a plane mirror gear 131, which is connected to the plane mirror 3.
  • This plane mirror gear 131 is rigidly connected to a combiner gear wheel 132 which moves the extension 5 for coupling the combiner 2 to the plane mirror 3.
  • the movably arranged combiner 2 experiences a pivoting movement.
  • the gears 131 and 132 are driven by drive gears 133 and 134, which engage in the corresponding teeth and which are themselves rotated by an unillustrated axially acting drive.
  • the number of teeth of the tooth edges 131 and 132 determines the gear ratio.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)

Abstract

L'invention concerne un dispositif d'affichage tête haute, destiné en particulier à un véhicule automobile, ce dispositif comprenant une unité de projection (1) servant à générer une image virtuelle. Au moins un élément (3) de l'unité de projection (1) est monté mobile pour permettre un décalage en hauteur de l'image virtuelle. Selon l'invention, un combineur (2) permettant de visualiser l'image virtuelle est placé dans la trajectoire du faisceau en aval de l'unité de projection (1), ce combineur (2) étant monté mobile également. Le dispositif d'affichage tête haute peut ainsi s'adapter facilement à la taille du conducteur.
EP08805003A 2007-10-02 2008-10-02 Dispositif d'affichage tête haute Withdrawn EP2195698A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007047232A DE102007047232A1 (de) 2007-10-02 2007-10-02 Head-up Display für Kraftfahrzeug
PCT/EP2008/063218 WO2009047200A1 (fr) 2007-10-02 2008-10-02 Dispositif d'affichage tête haute

Publications (1)

Publication Number Publication Date
EP2195698A1 true EP2195698A1 (fr) 2010-06-16

Family

ID=39672602

Family Applications (3)

Application Number Title Priority Date Filing Date
EP08104260A Withdrawn EP2045647A1 (fr) 2007-10-02 2008-06-04 Affichage tête haute
EP08805003A Withdrawn EP2195698A1 (fr) 2007-10-02 2008-10-02 Dispositif d'affichage tête haute
EP08805005A Withdrawn EP2195695A2 (fr) 2007-10-02 2008-10-02 Dispositif d'affichage tête haute destiné en particulier à un véhicule automobile

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08104260A Withdrawn EP2045647A1 (fr) 2007-10-02 2008-06-04 Affichage tête haute

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08805005A Withdrawn EP2195695A2 (fr) 2007-10-02 2008-10-02 Dispositif d'affichage tête haute destiné en particulier à un véhicule automobile

Country Status (3)

Country Link
EP (3) EP2045647A1 (fr)
DE (1) DE102007047232A1 (fr)
WO (2) WO2009047200A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102009002189A1 (de) 2009-04-03 2010-10-14 Linos Photonics Gmbh & Co. Kg Head-up Display und Beleuchtungseinheit für ein Head-up Display
WO2011111990A2 (fr) * 2010-03-10 2011-09-15 브이앤아이 주식회사 Dispositif d'affichage tête haute pour véhicule utilisant des lentilles multiples
DE102011121558B4 (de) 2011-10-05 2017-06-01 Johnson Controls Automotive Electronics Gmbh Anzeigevorrichtung und Verfahren zum Betrieb einer Anzeigevorrichtung
JP5953987B2 (ja) * 2012-06-29 2016-07-20 株式会社Ｊｖｃケンウッド 画像表示装置
DE102012014909A1 (de) 2012-07-27 2014-01-30 Volkswagen Aktiengesellschaft Kraftwagen
WO2014023658A2 (fr) * 2012-08-04 2014-02-13 Johnson Controls Gmbh Affichage tête haute
DE102012218360A1 (de) 2012-10-09 2014-04-10 Robert Bosch Gmbh Blickfeldanzeige für ein Fahrzeug
DE102013208971A1 (de) 2013-05-15 2014-11-20 Robert Bosch Gmbh Vorrichtung und Verfahren zum Projizieren einer Bildinformation in ein Blickfeld eines Fahrzeuginsassen eines Fahrzeugs
DE102014013967A1 (de) 2014-09-19 2016-03-24 Audi Ag Head-up-Display für einen Kraftwagen, Kraftwagen mit einem Head-up-Display und Verfahren zum Anordnen eines Head-up-Displays in einem Kraftwagen
DE102016003430B4 (de) 2016-03-21 2019-03-07 Audi Ag HUD-System für ein Kraftfahrzeug sowie Verfahren zur Montage eines HUD-Systems in einem Kraftfahrzeug sowie Kraftfahrzeug
CN114667475A (zh) * 2019-11-13 2022-06-24 京瓷株式会社 平视显示器以及移动体
US11094295B2 (en) 2019-12-10 2021-08-17 Volvo Car Corporation Automated adjustment of head up display image in a vehicle
EP4256392A1 (fr) 2020-12-04 2023-10-11 Solutia Inc. Absorption sélective d'atténuation d'image secondaire dans des systèmes de hud
WO2022119995A1 (fr) 2020-12-04 2022-06-09 Solutia Inc. Systèmes et procédés d'atténuation d'artéfacts de lumière parasite
WO2022119996A1 (fr) 2020-12-04 2022-06-09 Solutia Inc. Atténuation d'image secondaire et contrôle solaire dans des systèmes d'affichage tête haute (hud)
CN116584091A (zh) 2020-12-04 2023-08-11 首诺公司 防止非预期观看投影图像的系统和方法
DE102022111577B3 (de) 2022-05-10 2023-08-03 Audi Aktiengesellschaft Anzeigesystem
GB2622684A (en) * 2022-07-27 2024-03-27 Bae Systems Plc A coating for optical surfaces
DE102023104923A1 (de) 2023-02-28 2024-08-29 Bayerische Motoren Werke Aktiengesellschaft Head-up-Display mit einer Konkavspiegeloptimierung und/oder -Absenkung in die Parkposition mittels eines Exzenters

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Also Published As

Publication number Publication date
WO2009047202A2 (fr) 2009-04-16
WO2009047202A3 (fr) 2009-06-04
WO2009047200A1 (fr) 2009-04-16
EP2045647A1 (fr) 2009-04-08
DE102007047232A1 (de) 2009-04-16
EP2195695A2 (fr) 2010-06-16

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