EP2356506A1 - Fahrzeuganzeigesystem bzw. projektionsdisplay für ein kraftfahrzeug und verfahren zur kalibrierung - Google Patents

Fahrzeuganzeigesystem bzw. projektionsdisplay für ein kraftfahrzeug und verfahren zur kalibrierung

Info

Publication number
EP2356506A1
EP2356506A1 EP09759663A EP09759663A EP2356506A1 EP 2356506 A1 EP2356506 A1 EP 2356506A1 EP 09759663 A EP09759663 A EP 09759663A EP 09759663 A EP09759663 A EP 09759663A EP 2356506 A1 EP2356506 A1 EP 2356506A1
Authority
EP
European Patent Office
Prior art keywords
virtual image
distortion
display system
vehicle display
change
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.)
Ceased
Application number
EP09759663A
Other languages
German (de)
English (en)
French (fr)
Inventor
Frank Schliep
Oliver Kirsch
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.)
Johnson Controls GmbH
Original Assignee
Johnson Controls GmbH
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 Johnson Controls GmbH filed Critical Johnson Controls GmbH
Publication of EP2356506A1 publication Critical patent/EP2356506A1/de
Ceased 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
    • 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
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • 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
    • G02B27/02—Viewing or reading apparatus
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • 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
    • G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
    • 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
    • G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera
    • 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
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • 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
    • G02B27/0179—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Definitions

  • Vehicle display system or projection display for a motor vehicle Vehicle display system or projection display for a motor vehicle
  • the invention relates to a vehicle display system or a projection display for a motor vehicle or a display device, which is designed as a so-called head-up display (HUD), i. in which cooperate an imager, a reflection means and a projection surface, wherein in particular the projection surface is provided separately from the other, structurally combined components of the display device.
  • HUD head-up display
  • Active principle is the forwarding of an image generated by the imager via one or more of the beam deflection serving reflection means on the projection surface, which may be formed as an area of the windshield.
  • a vehicle display system with a display device and with an optical system for generating a virtual image for a user, wherein a distortion of the image information by means of a correction means is provided for the presentation of the virtual image in a distortion-reduced form after passing through the optical system, wherein the optical system further comprises at least one element adjustable to change the position of the virtual image, the distortion being provided in dependence on the adjustment of the adjustable element, and wherein the vehicle display system determines a storage device for storing the distortion of the correction means in dependence on the selected setting of the adjustable element Has correction data.
  • a vehicle display system is proposed with a position-variable reflection means (adjustable element), for example a mirror, by means of which the projection surface is adjustable in space, and a correction means by which on the projection surface perceptible aberrations are compensated (such as by predistortion in the image or via an optical element located in the beam path), wherein the effect of the correction means can be changed and parameters influencing the action of the correction means are determined by a measuring method.
  • measurements are carried out for a plurality of layers (or positions) of the reflection means and thus of several locations of the projection surface, and the determined correction parameters are stored in a memory associated with the display device.
  • the measurements may be performed using a height-adjustable camera that represents various head positions of motor vehicle operators due to body size or seat adjustment.
  • an individually adjustable projection vehicle display system is shown with adjustment-dependent variable compensation of image errors, as they occur for example by manufacturing scattered vehicle individually, the determination and deposit of the correction parameters with advantage already during vehicle production takes place.
  • the change in position of the virtual image is a change of the virtual image along a vertical axis. In this way, a height adaptation of the virtual image for adaptation to different positions of the eyes of the driver or user of the vehicle display system (due to different body size and / or posture) can be achieved in a simple manner.
  • the change in position of the virtual image is a change of the virtual image along a vertical and a horizontal axis.
  • a sensor means is provided for detecting the viewing position of the user.
  • a sensor means for detecting the viewing position of the user.
  • due to the distortion characteristic of the optical system occurring display errors that depend on the head position, ie in particular depend on the viewing angle, particularly effectively by means of the preset (and depending on the height adjustment of the vehicle display system or in dependence of the height and lateral adjustment the vehicle display system) correction data can be compensated.
  • the determination of the head position or eye position of the user according to the invention can be done either passive or active.
  • a passive determination of the head position is for example possible by the image supplied by the detection device or the camera image is searched for the relative position or position of a pattern, the geometry and contrast as a part of the user's face, in particular as an eye , is identified.
  • the head position it is also possible according to the invention for the head position to be determined actively, for example by illuminating the viewer or the driver by an IR light source, which is easily detectable on the image recorded by the camera , from the eye caused light reflexes causes.
  • an additional advantage of such a sensor means may also be provided as a means of observation of the driver, an alternative use of the camera.
  • the occurrence of signs of fatigue for example slowed eye blink or characteristic eye movements
  • visual warnings can then be generated by the imaging element and thus given to the driver for information.
  • the risk to the user can be reduced by falling asleep, for example by optimally adjusting an existing headrest.
  • the adjustment of the height adaptation functionality of the vehicle display system is performed manually by the user.
  • the adjustable element is a movable mirror element, in particular a rotatable mirror element and / or a translatable mirror element is.
  • a projection of image information from the display device onto the windshield is provided for generating the virtual image, wherein the distortion of the virtual image due to a reflection on the windshield and the distortion by the correction means mutually in Essentially cancel.
  • a change in the display of the display device is provided to bring about the distortion of the correction means and / or that for causing the distortion of the correction means, a change in the distortion characteristic of the optical system, in particular a contour change of an optical element and / or a mirror and / or a lens is provided.
  • the distortion correction can take place in a particularly simple manner.
  • Another object of the present invention relates to a method for calibrating a vehicle display system according to the invention, wherein for different positions of the virtual image by means of a detection device, the distortion of the virtual image is measured and derived derived position-dependent correction data for setting correction means and stored in the memory device of the vehicle display system.
  • FIG. 1 shows schematically a representation of a vehicle display system according to the invention.
  • the vehicle display system 10 comprises a display device 30, an optical system 40.
  • a light source (not shown) for illuminating the display device 30 is provided in particular.
  • a light-emitting diode high-power light-emitting diode
  • a plurality of light-emitting diodes diode array or diode array
  • the light source 20 may either be part of the vehicle display system 10 or may be separate therefrom.
  • the light emitted according to the first direction 41 or propagating in the first direction 41 is transmitted through the optical system 40 inventively deflected in particular several times.
  • a first deflecting mirror 45 is provided, which deflects the light arriving in the first direction 41 in a second direction 42.
  • the light propagating in the second direction 42 is in turn reflected by a second deflecting mirror 47 and deflected in a third direction 43.
  • the light propagating in the third direction 43 is again reflected by a windshield 48 and deflected in a fourth direction 44.
  • the fourth direction 44 is directed toward the eye of the observer 60.
  • the second deflecting mirror 47 is formed as a so-called adjustable element 47 in the context of the embodiment shown in the figure 1. This means that a movement of the adjustable element 47, a change in the height adjustment of the virtual image can be made.
  • the first mirror or the first deflection mirror 45 is designed as an adjustable element 47. In the following, however, the adjustable element 47 is always designated by the reference numeral 47.
  • the adjustable element 47 is any element of the optical system 40 or of the display device 30 which has height adaptation (or height and side adaptation) of the virtual image by either different (ie approximately at different angles) projection onto the virtual image Windscreen and / or ("equal", ie at the same angle) projection on different areas of the windshield for projection of the virtual image allowed.
  • the adjustable element 47 For different settings of the adjustable element 47 are usually make different corrections to the projected image, which by a correction means are generated as part of the optical system 40.
  • the different adjustments or corrections to be made for different settings of the adjustable element 47 are stored as correction data in a memory device of the vehicle display system. For example, multiple sets of correction data may be stored for different discrete adjustment positions. Depending on which of the discrete adjustment positions of the adjustable element 47 (and thus which of the accessible or adjustable height positions (or height and side positions) of the virtual image) has been selected, then a different set of correction data is used for the image correction.
  • the correction means changes the representation of the virtual image. This can be done, for example, by influencing the image-forming element 30 or the display device 30.
  • the correction means is either part of the display device 30 or the correction means affects at least the display device 30.
  • a controllably variable influencing the surface contour of such an element of the optical system 40 such as a mirror surface and / or a lens surface, as is known in principle from the telescope production in astronomy; these
  • a controllably variable influencing the surface contour of such an element of the optical system 40 such as a mirror surface and / or a lens surface, as is known in principle from the telescope production in astronomy; these
  • alternative does not have to refer exclusively to a surface influence of the element in the optical system, but may also relate, for example, to its transmission characteristic.
  • the influence on both the image-forming element 30 and the display device 30 as well as on a controllably variable characteristic of an element of the optical system 40 may be provided.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Instrument Panels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Controls And Circuits For Display Device (AREA)
EP09759663A 2008-11-05 2009-11-04 Fahrzeuganzeigesystem bzw. projektionsdisplay für ein kraftfahrzeug und verfahren zur kalibrierung Ceased EP2356506A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008064589 2008-11-05
PCT/EP2009/007901 WO2010051979A1 (de) 2008-11-05 2009-11-04 Fahrzeuganzeigesystem bzw. projektionsdisplay für ein kraftfahrzeug und verfahren zur kalibrierung

Publications (1)

Publication Number Publication Date
EP2356506A1 true EP2356506A1 (de) 2011-08-17

Family

ID=41571730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09759663A Ceased EP2356506A1 (de) 2008-11-05 2009-11-04 Fahrzeuganzeigesystem bzw. projektionsdisplay für ein kraftfahrzeug und verfahren zur kalibrierung

Country Status (6)

Country Link
US (1) US8711485B2 (ko)
EP (1) EP2356506A1 (ko)
JP (3) JP5572632B2 (ko)
KR (1) KR101634224B1 (ko)
CN (1) CN102203659B (ko)
WO (1) WO2010051979A1 (ko)

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KR101634224B1 (ko) 2016-06-28
US8711485B2 (en) 2014-04-29
WO2010051979A1 (de) 2010-05-14
JP2012507426A (ja) 2012-03-29
JP2016172554A (ja) 2016-09-29
CN102203659A (zh) 2011-09-28
CN102203659B (zh) 2013-12-11
US20110267700A1 (en) 2011-11-03
JP5982423B2 (ja) 2016-08-31
JP5572632B2 (ja) 2014-08-13
JP2014194565A (ja) 2014-10-09
KR20110084272A (ko) 2011-07-21
JP6340383B2 (ja) 2018-06-06

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