EP3377933A1 - Abdeckelement zum abdecken einer projektionsöffnung eines head-up-displays, head-up-display und verfahren zum leiten von licht durch ein abdeckelement - Google Patents
Abdeckelement zum abdecken einer projektionsöffnung eines head-up-displays, head-up-display und verfahren zum leiten von licht durch ein abdeckelementInfo
- Publication number
- EP3377933A1 EP3377933A1 EP16790402.8A EP16790402A EP3377933A1 EP 3377933 A1 EP3377933 A1 EP 3377933A1 EP 16790402 A EP16790402 A EP 16790402A EP 3377933 A1 EP3377933 A1 EP 3377933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polarization
- display
- head
- light beam
- cover member
- 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- Withdrawn
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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
-
- 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
- G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
-
- 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
- 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
- G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
- G02B2207/123—Optical louvre elements, e.g. for directional light blocking
Definitions
- Cover element for covering a projection opening of a head-up display, head-up display and method for passing light through a cover
- the invention is based on a device or a method
- Modern vehicles may include head-up displays for projecting specific information into a field of view of a driver.
- a cover element for covering a projection opening of a head-up display for a vehicle is presented, the projection opening being arranged in the mounted state of the head-up display in a beam path between an image generation unit of the head-up display and a deflecting element, the cover element having the following features: a polarization changing element configured to polarize a light beam guided in the beam path between a first polarization
- Polarization direction polarized light beam permeable polarization filter wherein the polarizing filter in the mounted state of the cover on a side facing away from the image forming unit
- Polarization change element is arranged.
- a cover plate or other at least partially translucent element Under a cover can be understood a cover plate or other at least partially translucent element.
- the cover member may be formed to separate an interior of the head-up display from an exterior of the head-up display.
- the cover may be integrated into a dashboard of the vehicle and depending on the embodiment movable or rigidly connected thereto.
- the cover member may have a flat or curved surface. Accordingly, the projection opening can be formed in the dashboard to fully accommodate the cover.
- the image generation unit can be designed, for example, to project a light beam through the projection opening onto the deflecting element, for example in the form of a windshield of the vehicle or a combiner disk.
- Polarization changing element may be understood as an optical device configured to change a polarization or phase of a light beam.
- the polarization changing element may be, for example, as
- Delay plate or foil also called retarder, be realized.
- the polarization changing element may be configured to convert between linear and circular polarization or between linear and elliptical polarization.
- a polarizing filter also referred to as a polarizing filter, can be understood to mean an optical component which is designed to filter out a light beam with a specific polarization from non-partially or partially polarized light beams.
- the polarizing filter may be configured to filter out a light beam by selective absorption.
- the polarization filter can be realized as a linear polarization filter.
- the embodiment the
- Layer composite such as a composite film, be combined with each other.
- a retarder principle is used, in which according to one embodiment, an integration of polarizer and retarder is realized in a cover glass or glare trap of the head-up display.
- the second direction of polarization is that which passes through the polarization filter so that the display beam is first rotated in polarization and then passes through the filter in the second polarization.
- Polarization filter in a cover for a head-up display especially in a head-up display with mirrored directly on a windshield display surface, sunlight reflections in the head-up display in direct sunlight can be avoided. This can prevent a viewer from being dazzled while viewing the head-up display.
- Such a covering element for suppression of sunlight reflections for head-up displays offers the advantage that, depending on the embodiment, elements such as microlens arrays that have a superficial
- the polarization changing element may be configured to detect the polarization between a circular polarization as first polarization type and a linear polarization to change as a second polarization.
- the polarization filter for a linearly polarized light beam can be transmissive.
- the light rays radiating from the display are initially circularly polarized, are then linearly polarized by the retarder and then pass the linear one
- Polarizing filter By means of this embodiment it can be achieved that only linearly polarized light beams reach the field of view of the observer.
- Polarization change element and, additionally or alternatively, the
- Polarization filter may be formed to polarize a light beam originating from the imaging unit such that the linear polarization when hitting another optical element has both oscillation components perpendicular and parallel to the plane passing through the light beam incident on the optical element and the surface normal of the optical element optical element is clamped at the point of impact.
- the optical element may be, for example, the windshield of the vehicle or a combiner disc.
- the polarization changing element and / or the polarizing filter may be formed to polarize the light beam substantially perpendicular, parallel or at a defined angle obliquely to the plane of incidence of a radiation direction of the light beam.
- the system allows one degree of freedom in the orientation of the linear polarization of the image beams on the windshield or a combiner for the same mode of operation of the sun-reflex suppression.
- this linear polarization may be oriented completely perpendicular to the plane of incidence to allow high reflection even at angles close to the Brewster angle.
- an orientation with portions perpendicular and parallel to the plane of incidence can be realized by a polarization direction rotated in comparison thereto.
- Linearly polarizing sunglasses often completely out-polarized polarized light, therefore, the system can be deliberately designed with a parallel portion.
- the reflection of the light beam at the Windshield be improved. Furthermore, this makes it possible to use the head-up display with special, linearly polarizing sunglasses.
- the cover element is formed in order to direct a light beam striking a surface of the cover element facing the deflecting element into a light trap.
- a light trap may be understood to mean an element for absorbing light rays.
- the light trap can be realized for example with a black, matte surface. As a result, disturbing light reflections in the field of view of the observer can be prevented.
- the polarization changing element may be realized as a h / A retardation film.
- the ⁇ / 4 retardation film may be configured to polarize beams of light polarized parallel to a component-specific axis by a quarter wavelength relative thereto
- Polarization change element and the polarization filter can be realized as a layer composite. This allows a simple and inexpensive production of the cover.
- the approach proposed here also creates a head-up display for
- the head-up display comprising: an image forming unit; a projection opening arranged in a beam path between the image forming unit and a deflecting element of the vehicle; and a cover member according to any one of the above embodiments for covering the projection opening.
- the head-up display can be realized with a light trap.
- the cover element may be formed in order to direct a light beam striking a surface of the cover element which faces the deflecting element into the light trap. As a result, disturbing light reflections in the field of view of the observer can be effectively prevented.
- Cover be arranged. This allows a particularly effective suppression of light reflections.
- Fig. 1 is a schematic representation of a head-up display
- FIG. 2 shows a schematic illustration of an autostereoscopic head-up display
- FIG. 3 is a schematic representation of an autostereoscopic head-up display based on a parallax barrier
- 4 is a schematic representation of an autostereoscopic head-up display based on a microlens array; 5 is a schematic representation of a head-up display according to an embodiment;
- FIG. 6 shows a schematic illustration of a head-up display from FIG. 5;
- FIG. 7 shows a schematic representation of a head-up display from FIG. 5;
- Fig. 8 is a schematic representation of a head-up display with
- FIG. 9 shows a schematic illustration of a head-up display from FIG. 8;
- FIG. 11 is a flowchart of a method for passing light through a cover according to an embodiment.
- the head-up display 100 is installed in a vehicle 102 and comprises an imaging unit 104 and a head-up display optics 106 for projecting one of the imaging unit 104 generated light beam in a driver's eye 108 of a driver of the vehicle 102nd
- Current head-up displays can be designed to image an image plane of the image generator unit 104, or PGU, by means of a corresponding head-up display optics 106 onto a virtual image located in front of the vehicle 102.
- the driver increases the image generated by the imaging unit 104.
- This picture can with be superimposed on a driving scene and are located at a defined distance to a serving as a screen front screen on a virtual screen 110.
- an imaging element in the imaging unit 104 can be designed to image an image plane of the image generator unit 104, or PGU, by means of a corresponding head-up display optics 106 onto a virtual image located in front of the vehicle 102.
- an LCD module can be used.
- the illustrated virtual image is an enlarged image of the image generated by the imaging unit 104. Therefore, the head-up display optics 106 should have a certain magnification.
- the required magnification increases with the distance of the virtual screen 110, i. That is, the image generated by the imaging unit 104 should be increased in size so as to be able to occupy the desired field of view of the driver at a greater distance.
- the distance of the virtual screen 110 in current head-up displays is for example about 15 m.
- FIG. 2 shows a schematic representation of an autostereoscopic head-up display 100. Shown is a basic mode of operation of the
- the head-up display 100 is designed to have separate partial images for a left eye 200 and a right eye 202 to create. For example, the two partial images are already generated by the imaging unit 104. Via the head-up display optics 106, the light of the partial images is then made available to the respective eye in a smaller eyebox.
- the display can be divided, for example, into different areas for both eyes. Every eye then sees only on certain parts of the display, which are distributed, for example, strip-shaped on the display axis. Such a division can be realized for example by means of a so-called parallax barrier, as described below with reference to FIG. 3.
- FIG. 3 shows a schematic representation of an autostereoscopic head-up display 100 based on a parallax barrier.
- an LCD display 300 is provided at a short distance with a strip-shaped barrier layer 302, which shields certain display areas for one eye. Through the barriers, the two eyes look at different strip-shaped areas of the
- Displays 300 These areas are now used to represent different partial images for the two eyes.
- the eyes can be offered so different partial images.
- a similar approach is to mount an array of cylindrical microlenses on an LCD module. The principle is illustrated in FIG. 4 and operates similarly to the principle shown in FIG. The respective eye sees only certain strip-shaped areas of the display via the microlenses. Due to this spatial separation, different partial images for both eyes can be displayed.
- FIG. 4 shows a schematic representation of an autostereoscopic head-up display 100 based on a microlens array 400. Shown is a
- a head-up display 100 in which the microlens array 400 is arranged in front of a flat LCD screen 402. Due to the microlenses, the respective eye sees only certain areas of the display 402, which then represent the respective partial image.
- the microlenses are placed as cylindrical lenses over the entire display surface, resulting in strip-shaped areas for each field.
- FIG. 5 shows a schematic representation of a head-up display 500 according to an exemplary embodiment.
- the head-up display 500 is installed in a vehicle 502 and comprises an image generation unit 504, here a display, and a cover element 506 for covering a projection opening 508 of the head-up display 500.
- the projection opening 508 is in an optical path between the image forming unit 504 and a deflecting element 510 of the vehicle 502.
- the deflecting element may be, for example, the windscreen of the vehicle or a
- Combiner disc act.
- the projection opening 508 is formed in a dashboard of the vehicle 502.
- Image forming unit 504 is designed to irradiate a light beam 512 in the beam path.
- the cover member 506 is realized with a polarizing filter 514 and a polarization changing element 516 disposed between the polarizing filter 514 and the image forming unit 504. Shown is an exemplary system configuration of the head-up display 500 with the retarder integrated in the cover element 506 as the polarization-changing element 516
- Polarization change element 516 is designed to allow a polarization of the light beam 512 coming from the image generation unit between a first polarization mode, in this case a circular polarization, and a second polarization
- Polarization here a linear polarization to change.
- the polarizing filter 514 is designed to pass only those light beams that are in the second polarization in a predetermined polarization direction, according to FIG. 5 so linearly polarized with a defined orientation direction.
- Polarization types and polarization directions of the light beam 512 are indicated by arrows.
- the polarizing filter 514 and the polarization changing element 516 are combined, for example, in a layer composite.
- the cover member 506 includes a retardation layer as a polarization changing element 516 in combination with a linear polarizing filter 514
- Display 500 come out to be filtered out. This leads among other things to the following. With a display polarization adapted to the system, the sunlight can be filtered out without influencing the useful light of the imaging unit 504, ie, without affecting the system efficiency. By a corresponding design of the cover 506, the concept can be advantageously integrated into existing systems, so that a basic adaptation of a design process can be omitted.
- the linear polarization direction of the light beam 512 directed to the viewer is freely selectable in the system structure.
- the light beam 512 may have a diagonal polarization direction that is substantially at 45 degrees to the plane of incidence of the light beam 512, that of the incident beam 512 and that of the reflected beam on the axis 518 is stretched towards the eye 520.
- a displayed virtual image 522 can be prevented from being filtered out by a pair of sunglasses having a horizontal linear polarizing filter.
- the head-up display 500 for reasons of sealing a head-up display space has a cover anyway, such as a cover plate, no additional space is required to implement the approach described here.
- the cover element 506 is suitable for integration into a system with a display mirrored directly over the deflecting element 510.
- the head-up display 500 is realized with a retarder concept in which the head-up display 500
- a linear polarizing filter 514 and a ⁇ / 4 retardation film are integrated as a polarization changing element 516.
- Fig. 5 the operation of such a system is illustrated. Shown is a variant with directly above the windshield 510 mirrored display. The display of the imaging unit 504 radiates in circular polarization. The circular polarization is indicated in Fig. 5 with a round arrow. After the passage of the useful light in the form of the light beam 512 through the polarization changing element 516, the useful light is linearly polarized and thus can pass through the polarizing filter 514 unhindered.
- the linear polarization of the light beam 512 is characterized by oblique double arrows.
- the polarization filter 514 and the polarization-changing element 516 which are implemented as layers, for example, are positioned so that the continuous useful light has a freely defined linear polarization direction. This makes it possible, for example, a perpendicular with respect to the plane of incidence linear polarization to maximize reflection at the
- FIG. 6 shows a schematic representation of a head-up display 500 from FIG. 5. Shown is a function of a special, in this case concave form of the FIG
- Observers outgoing light rays via a reflection on a windshield 510 facing surface of the cover 506 are directed into a light trap 600.
- the shape of the cover member 506 is designed, for example, such that surface reflections on the
- Covering element 506 itself be avoided by the coming of the area of the viewer light beams on the reflection on the
- Cover 506 are passed into the light trap 600.
- the viewer thus looks indirectly into the light trap 600, for example, a dull black
- Sun rays on the cover 506 reach the eye 520 of the viewer.
- the light trap 600 is at one of
- FIG. 7 shows a schematic representation of a head-up display 500 from FIG. 5.
- FIG. 7 shows the mode of functioning of the filtering out of the sunlight by the cover element 506.
- an incoming unpolarized light beam 700 is polarized by the polarization filter 514, in this case a linear filter.
- the light beam 700 is circularly polarized.
- the circularly polarized light beam 700 is rotated in its circulating direction so as to have a linear polarization crossed with respect to polarization in the first pass after a second pass through the polarization changing element 516.
- the light beam 700 is blocked by the polarizing filter 514.
- the light beam 700 is, for example, irradiated, initially unpolarized sunlight, which is linearly polarized during the first pass through the polarizing filter 514.
- This linearly polarized sunlight is circularly polarized on the first pass through the polarization changing element 516 and then impinges on the display surface of the image forming unit 504.
- the cover 506 may design dependent in systems with
- FIG. 8 shows a schematic illustration of a head-up display 500
- the head-up display 500 is constructed similarly to the head-up display described above with reference to FIGS. 5 to 7, with the difference that the cover element 506 has a lamellar structure 800 instead of the polarization filter and the polarization change element.
- Lamellar structure 800 will be light rays outside of one of the
- Image unit 504 blocked angle range, whereby dazzling sunlight reflections are prevented.
- Blade-like cover member 506 may be similar to a conventional one
- Cover be chosen so that the cover 506 itself causes no disturbing back reflections.
- the image forming unit 504 may have any emission polarization. So can from the
- Image forming unit 504 emitted light beams, for example
- FIG. 8 shows a system structure with integrated cover element 506
- the head-up display 500 is a
- Lamella cover realized, in which the lamellas are formed, in order to let happen like with a Venetian blind only light from certain angles.
- FIG. 8 illustrates the principle analogous to FIG. 6.
- the lamellae are oriented in such a way that the angular range of the image beams generated by the head-up display 500 can pass through the cover element 506.
- the shape of the Cover member 506 is chosen so that surface reflections do not dazzle the viewer.
- FIG. 9 shows a schematic illustration of a head-up display 500 from FIG. 8.
- the functional principle of a removal of a light beam 900 incident through the windshield 510 is shown by means of a
- Cover element 506 with integrated lamellar structure 800 In this case, light beams are blocked directly outside of the angular range transmitted by the lamellae. Light rays within the angular range are reflected on the display surface of the image forming unit 504 and again hit outside of an acceptance angle on the cover member 506, whereby they are also blocked.
- FIG. 9 shows, for example, a system behavior in the case of the irradiation of sunlight. Sunbeams that radiate outside the acceptance angle of the slats are blocked immediately. Sunbeams within the acceptance angle are reflected on the display surface and then meet outside the acceptance angle again on the lamellar structure 800, where they are also blocked.
- FIG. 10 shows a schematic representation of a head-up display 500 with a lamellar structure lying on a display surface.
- the head-up display 500 according to FIG. 10 is realized without a cover element. Instead, the display surface of the image forming unit 504 has a fin sheet 1000 having a louver structure.
- the lamellar foil 1000 is optionally provided with a comb structure 1002, which, for example, blackened on one side
- the display slats are realized for example as a freestanding grid with narrow webs or integrated in a film or a glass layer. Direct application of such a lamellar structure to the display surface offers the following advantages.
- the display used can have any emission polarization and therefore also be unpolarized, for example, as a result of which negative effects, such as when wearing a polarizing sunglass in the
- FIG. 10 illustrates by way of example a system in which the display of the imaging unit 504 is reflected directly over the windshield 510.
- the lamellar film 1000 is additionally coated with the comb structure 1002, whose segments are bevelled.
- the beveled segments on the display prevent light from being directed towards the driver's eye 520 by direct reflections on the surface.
- the segments of the comb structure 1002 are, for example, blacked out on one side.
- the comb structure 1002 may have the same periodicity as the louvers applied over the display. Alternatively, the segments may be arranged at a smaller or greater distance than the slats to each other.
- the individual lamellae can be embedded in a foil or glass structure.
- the display may have a freestanding lamellar structure. In this case, no additional comb structure is required on the lamellar substrate.
- the lamellar structure can, for example, with a preceding with reference to the figures 5 to 7
- the freestanding lamellar structure can be realized for example from thin metallic webs, for example in combination with transversely stabilizing webs.
- FIG. 11 shows a flowchart of a method 1100 for conducting light through a cover element according to an exemplary embodiment.
- the method 1100 may be performed, for example, using a cover member described above with reference to FIGS. 5 to 7.
- a step 1110 by means of the polarization changing element, a polarization of a guided in the beam path between the image forming unit and the windshield between the first light beam
- a light beam polarized in the second polarization mode in a predetermined polarization direction is transmitted through the polarization filter.
- an exemplary embodiment comprises a "and / or" link between a first feature and a second feature, then this is to be read so that the embodiment according to one embodiment, both the first feature and the second feature and according to another embodiment either only first feature or only the second feature.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Instrument Panels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015222842.8A DE102015222842A1 (de) | 2015-11-19 | 2015-11-19 | Abdeckelement zum Abdecken einer Projektionsöffnung eines Head-up-Displays, Head-up-Display und Verfahren zum Leiten von Licht durch ein Abdeckelement |
PCT/EP2016/076667 WO2017084894A1 (de) | 2015-11-19 | 2016-11-04 | Abdeckelement zum abdecken einer projektionsöffnung eines head-up-displays, head-up-display und verfahren zum leiten von licht durch ein abdeckelement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3377933A1 true EP3377933A1 (de) | 2018-09-26 |
Family
ID=57223715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16790402.8A Withdrawn EP3377933A1 (de) | 2015-11-19 | 2016-11-04 | Abdeckelement zum abdecken einer projektionsöffnung eines head-up-displays, head-up-display und verfahren zum leiten von licht durch ein abdeckelement |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3377933A1 (de) |
CN (1) | CN108292047A (de) |
DE (1) | DE102015222842A1 (de) |
FR (1) | FR3044113A1 (de) |
WO (1) | WO2017084894A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017216466A1 (de) * | 2017-09-18 | 2019-03-21 | Bayerische Motoren Werke Aktiengesellschaft | Blickfeldanzeigevorrichtung für ein Fahrzeug |
CN109991744B (zh) | 2018-01-02 | 2020-12-01 | 京东方科技集团股份有限公司 | 显示装置、显示方法及平视显示装置 |
US10384645B1 (en) | 2018-02-27 | 2019-08-20 | Ford Global Technologies, Llc | Vehicle entry systems |
DE102018207078B4 (de) * | 2018-05-07 | 2023-08-31 | Audi Ag | Kraftfahrzeug mit selbstleuchtendem Bildschirm sowie zugehöriges Betriebsverfahren |
DE102018209934A1 (de) * | 2018-06-20 | 2019-12-24 | Bayerische Motoren Werke Aktiengesellschaft | Blickfeldanzeigevorrichtung für ein Kraftfahrzeug |
DE102018213061A1 (de) * | 2018-08-03 | 2020-01-30 | Continental Automotive Gmbh | Gerät zum Generieren eines virtuellen Bildes mit Störlichtunterdrückung |
DE102018213820A1 (de) * | 2018-08-16 | 2020-02-20 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Betreiben einer Blickfeldanzeigevorrichtung für ein Kraftfahrzeug |
CN110837185A (zh) * | 2018-08-16 | 2020-02-25 | 宁波舜宇车载光学技术有限公司 | 平视显示系统和平视显示方法 |
DE102018215272A1 (de) * | 2018-09-07 | 2020-03-12 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Betreiben einer Blickfeldanzeigevorrichtung für ein Kraftfahrzeug |
CN109459856A (zh) * | 2018-11-26 | 2019-03-12 | 广景视睿科技(深圳)有限公司 | 一种抬头显示系统 |
DE102018220331B4 (de) | 2018-11-27 | 2023-05-11 | Continental Automotive Technologies GmbH | Verfahren und Vorrichtung zur Herstellung eines Retarders, Retarder für ein optisches System, Gerät zum Generieren eines virtuellen Bildes, das einen solchen Retarder verwendet und Fortbewegungsmittel mit einem solchen Gerät |
CN112034620A (zh) * | 2019-06-04 | 2020-12-04 | 怡利电子工业股份有限公司 | 标靶反射式扩散片抬头显示设备 |
FR3100618B1 (fr) | 2019-09-11 | 2022-07-22 | Psa Automobiles Sa | Elément de couverture de l’ouverture de projection d’un dispositif d’affichage tête-haute |
DE102020205444B3 (de) * | 2020-04-29 | 2021-07-08 | Continental Automotive Gmbh | Gerät zum Generieren eines virtuellen Bildes mit Störlichtunterdrückung, Head-Up-Display aufweisend ein solches Gerät und Fahrzeug aufweisend ein solches Gerät bzw. Head-Up-Display |
DE102020118694A1 (de) | 2020-07-15 | 2022-01-20 | Bayerische Motoren Werke Aktiengesellschaft | Frontscheibenanzeigevorrichtung |
DE102021115158A1 (de) | 2021-06-11 | 2022-12-15 | Bayerische Motoren Werke Aktiengesellschaft | Head-Up Anzeigevorrichtung für ein Fahrzeug |
CN115616775A (zh) * | 2021-07-16 | 2023-01-17 | 中强光电股份有限公司 | 抬头显示器 |
US11988830B2 (en) | 2021-07-16 | 2024-05-21 | Coretronic Corporation | Head up display |
GB2623850A (en) * | 2022-03-29 | 2024-05-01 | Envisics Ltd | Display system and light control film therefor |
GB2617643B (en) * | 2022-08-31 | 2024-10-23 | Envisics Ltd | Display system and light control element therefor |
DE102023110525A1 (de) | 2023-04-25 | 2024-10-31 | Carl Zeiss Jena Gmbh | Optische anordnung für head-up display und winkelselektive filteranordnung mit mikrolamellengitter |
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US5486840A (en) * | 1994-03-21 | 1996-01-23 | Delco Electronics Corporation | Head up display with incident light filter |
US6262841B1 (en) * | 1997-11-24 | 2001-07-17 | Bruce D. Dike | Apparatus for projecting a real image in space |
US6798579B2 (en) * | 1999-04-27 | 2004-09-28 | Optical Products Development Corp. | Real imaging system with reduced ghost imaging |
JP2001013458A (ja) * | 1999-04-27 | 2001-01-19 | Samii Kk | 立体画像表示装置 |
US6359737B1 (en) * | 2000-07-28 | 2002-03-19 | Generals Motors Corporation | Combined head-up display |
-
2015
- 2015-11-19 DE DE102015222842.8A patent/DE102015222842A1/de not_active Withdrawn
-
2016
- 2016-11-04 CN CN201680067563.XA patent/CN108292047A/zh active Pending
- 2016-11-04 WO PCT/EP2016/076667 patent/WO2017084894A1/de unknown
- 2016-11-04 EP EP16790402.8A patent/EP3377933A1/de not_active Withdrawn
- 2016-11-17 FR FR1661125A patent/FR3044113A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN108292047A (zh) | 2018-07-17 |
WO2017084894A1 (de) | 2017-05-26 |
DE102015222842A1 (de) | 2017-05-24 |
FR3044113A1 (fr) | 2017-05-26 |
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