EP3652579A1 - Verfahren zur kalibrierung einer projektionsvorrichtung für eine datenbrille sowie projektionsvorrichtung für eine datenbrille zur durchführung eines verfahrens. - Google Patents
Verfahren zur kalibrierung einer projektionsvorrichtung für eine datenbrille sowie projektionsvorrichtung für eine datenbrille zur durchführung eines verfahrens.Info
- Publication number
- EP3652579A1 EP3652579A1 EP18734175.5A EP18734175A EP3652579A1 EP 3652579 A1 EP3652579 A1 EP 3652579A1 EP 18734175 A EP18734175 A EP 18734175A EP 3652579 A1 EP3652579 A1 EP 3652579A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light beam
- data glasses
- projection device
- holographic
- reflection element
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000011521 glass Substances 0.000 claims description 54
- 210000001525 retina Anatomy 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004984 smart glass Substances 0.000 claims description 2
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 24
- 230000008901 benefit Effects 0.000 description 20
- 210000001508 eye Anatomy 0.000 description 11
- 238000001514 detection method Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
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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
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
-
- 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
- G02B26/10—Scanning systems
-
- 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
- G02B26/10—Scanning systems
- G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
-
- 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
-
- 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
-
- 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
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
Definitions
- the present invention relates to a method for calibrating a
- Projection device for a data glasses a projection device for a data glasses for performing a method, a data glasses, a
- Storage medium and an electronic control unit Storage medium and an electronic control unit.
- One expected trend in the future is the wearing of data glasses, which can display virtual image information in the field of view of a user.
- data glasses which can display virtual image information in the field of view of a user.
- newer concepts follow the approach of overlaying virtual image content with the environment.
- the superimposition of virtual image content with the still perceived environment is referred to as augmented reality.
- an application is fading in
- HMD Clear Head-Mounted Displays
- AR augmented reality
- HMDs are also referred to as retina scanners.
- the concept is based on the fact that a single light beam, in particular a laser beam, by means of an electronically controlled scanner optics, such.
- M EMS Micro-Electro-Mechanical System
- Angle range is scanned.
- the beam can be scanned across the lens in this way.
- a deflection of the incident beam is usually necessary.
- the law of reflection according to which
- HOE holographic optical element
- the projection device comprises at least one light source for emitting a light beam and at least one arranged on a spectacle lens of the data glasses or can be arranged
- a holographic element for projecting an image on a retina of a user of the data glasses by redirecting and / or focusing the light beam on an eye lens of the user.
- the method is used to calibrate a projection device for data glasses.
- the projection device has a scanner optics and a
- Deflecting element on An existing in the scanner optics light source is scanned by a reflection element on the deflecting element, from where the light beam falls into an eye lens of a user.
- the aim of the calibration is to determine the relative orientation of the scanner optics and deflection element. For this purpose, it is determined at which scan setting of the reflection element on the data glasses arranged alignment marks are taken, the position of the adjustment marks is known relative to the deflection.
- a first step of the method becomes one of a light source
- each alignment mark is disposed at a predetermined position relative to the surface of a arranged on a lens of the data glasses deflection.
- Eyeglass frame of the data glasses to be arranged.
- a light source may be understood to mean a light-emitting element such as a light-emitting diode, in particular an organic light-emitting diode, a laser diode or an arrangement of a plurality of such light-emitting elements.
- the light source can be designed to emit light of different wavelengths.
- the light beam can for
- the light beam can scan the retina, for example in rows and columns or in the form of Lissajous patterns and can be pulsed accordingly.
- Eyeglass lens may be understood as a disc member made of a transparent material such as glass or plastic. Depending on
- the spectacle lens may be formed approximately as a correction glass or a tint for filtering light of certain wavelengths such as UV light.
- a light beam can be understood in the paraxial approximation to be a Gaussian beam.
- a reflection element for example, a mirror, in particular a micromirror or an array of micromirrors, or a hologram can be understood.
- the reflection element By means of the reflection element, a beam path of the light beam can be adapted to given spatial conditions.
- the reflection element can be realized as a micromirror.
- the micromirror can be designed to be movable, such as a tiltable about at least one axis Have mirror surface.
- Such a reflection element offers the advantage of a particularly compact design. It is also advantageous if the
- Reflection element is formed to change an angle of incidence and, additionally or alternatively, a point of incidence of the light beam on the holographic element.
- the holographic element can be scanned flat, in particular approximately in rows and columns, with the light beam.
- a scan angle range is understood to mean a solid angle over which the light beam is scanned.
- the projection of the solid angle onto the surface of the data glasses yields the surface area swept by the scanned light beam.
- Each alignment mark is arranged at a predetermined position relative to the surface of the deflecting element.
- the deflecting element may be a holographic element or a freeform mirror.
- a holographic element may, for example, be understood to mean a holographic-optical component, HOE for short, which can fulfill the function of a lens, a mirror or a prism.
- the holographic element for certain colors and angles of incidence can be selective.
- the holographic element can fulfill optical functions that can be imprinted into the holographic element with simple point light sources. As a result, the holographic element can be produced very inexpensively.
- the holographic element can be transparent.
- virtual image information generated by the projection device can be overlaid with image information from the environment.
- a light beam can thus be applied to a retina of a wearer of the
- Data goggles are steered that the wearer a sharp virtual image perceives.
- the image may be projected directly onto the retina by scanning a laser beam through a micromirror and the holographic element.
- Such a projection device can be built in a small space
- the reflection behavior on the surface of the holographic element is different at each point. As already mentioned above, it is generally not the case that the angle of incidence equals the angle of reflection.
- the portion of the surface of the holographic element which serves to redirect the light beam to the eye of a user is referred to as a functional region. In principle, the same applies to a free-form mirror as to a holographic element.
- Each alignment mark has a predetermined and known reference to the functional region of the deflection element.
- two adjustment marks suffice to achieve calibration for both deflection directions of the reflection element.
- at least two adjustment marks in particular at least four adjustment marks are used.
- four alignment marks be used in the process. This has the advantage that the calibration accuracy is increased compared to the case with only two adjustment marks.
- the Justagemarken are preferably arranged outside or at the edge of the primary field of view on the deflector. This has the advantage that adjustment marks do not affect the user and thus the calibration can also take place while the user is using the data glasses. Because of the bigger one Distance of the adjustment marks with each other, however, advantageously a greater accuracy is achieved.
- the deflecting element preferably has a primary region which serves to operate the data glasses normally, and an externally adjoining one
- the primary region corresponds to the above-mentioned functional region.
- the adjustment marks are arranged on the spectacle frame of the data glasses. This has the advantage that the light beams required for the adjustment run separately from the light rays striking the deflecting element and thus can also be evaluated separately.
- the scan setting is understood to mean an adjustment of the reflection element which deflects the light beam by a specific angle.
- the angle is to be understood as meaning an angle in space which, starting from the surface of the planar reflection element, requires two angles in order to be clearly defined.
- the scan setting may also be called angle adjustment.
- Reflection element and the point of impact of the light beam on the surface of the data glasses determines a clear functional relationship. This has the advantage that, for each scan adjustment of the reflection element, the point of impact of the light beam on the surface of the data glasses, i. on the deflecting element or on the spectacle frame, is known. If light beam strikes the deflection element, due to the knowledge of the properties of the
- Deflection element also known for each point of impact of the light beam on the surface of the deflecting element, where the light beam is reflected.
- the determination is carried out at each of which scan setting of the reflection element, the at least two Justagemarken be hit by the light beam by the light beam is detected in each case by arranged on the Justagemarken detectors.
- This arrangement of detectors on the alignment marks has the advantage that it can be detected very reliably when an alignment mark is hit by a light beam.
- the determination may be made at each scan setting of the
- Reflection element which are hit by the light beam at least two Justagemarken done by the light beam in each case by holographic or diffractive adjustment elements, which are respectively arranged on the Justagemarken, is deflected in each case a predetermined direction and detected after the respective deflection.
- Projection device or the data glasses lighter and free of electronic components.
- the use of holographic or diffractive adjustment elements has the advantage that they are light, resulting in a reduced weight of the projection device or the data glasses.
- the deflection element is designed as a holographic element
- the adjustment marks can be manufactured homogeneously with the deflection element.
- the adjustment marks and the deflection element are arranged in the same layer, which is designed as a holographic element.
- the respective predetermined direction, in which the light beam is deflected by the holographic or diffractive adjustment elements may be the same for each holographic or diffractive adjustment element. According to another
- each holographic or diffractive adjustment element is deflected to one and the same point.
- the light beam from the holographic or diffractive adjustment elements is in each case directed to a common point, which can be called a puncture point, for example.
- a puncture point for example.
- the position of the puncture point must not be known, it is only important that all four holographic adjustment elements deflect the respective light beams to the puncture point.
- the light beam is deflected in each case by the holographic or diffractive adjustment elements parallel to the respective surface normal. It should be noted that when the holographic element is a curved surface, the respective ones
- the light beam is deflected in each case by the holographic or diffractive adjustment elements in the same direction, which can deviate locally from the surface normal.
- the holographic or diffractive adjustment elements for the detection of the light rays, those of the holographic or diffractive
- a flat detector can be mounted in a plane, wherein the plane is preferably arranged in the surface of the holographic element in the event that the holographic element is flat.
- the light beams need only be detected on the detector arranged in the detection plane, which
- the light beam in each case by the holographic or diffractive adjustment elements in the direction of
- Reflection element reflected back.
- the detection via an integrated in the scanner module or in the light source
- Detection unit for example, a photodiode made.
- the scanner module is understood to be the unit which controls the reflection element. According to this embodiment, it is further preferred if the
- the light beam is reflected back into itself.
- the light beam is reflected back into the light source, where, in the event that a laser is used as the light source, it can advantageously be detected by interference with the laser generated radiation, the so-called self-mixing interference (SMI).
- the light beam can be deflected in each case by the holographic or diffractive adjustment elements in the direction of an eye lens of a user. This has the advantage that a camera or a user can detect the light beam.
- a known illumination pattern is preferably used if the scanned beam hits the test region, ie an alignment mark.
- the light source which is used for the present method for calibration, also for the image formation
- a wavelength of the light beam lies in a wavelength range not visible to humans.
- a calibration is not noticed by a user of the data glasses.
- Calibration can also be performed while using the data glasses.
- the calibration can be done by a laser integrated in the projection device. It is also possible to use a light source of an existing eye tracking system.
- Wavelength of the changed laser beam the range of the near infrared (NI R), in particular the range between about 700 nm to 1400 nm, are selected.
- Infrared radiation has the advantage that it is invisible to the human eye and therefore does not disturb the sensory perception of the eye. Furthermore, it is not harmful to the eye at a correspondingly low intensity.
- suitable laser sources that can be used advantageously.
- the alignment marks could also be seen in the field of view, i. be installed in the primary region.
- the light beam of the light source is coupled via an interface from outside the data glasses. In this case, a light source used for the image formation is not with the
- Calibration used the same light source.
- the coupling of the light beam can preferably take place from an external test stand via a defined interface.
- This has the advantage that a test bench for calibration can be used, which checks a variety of data glasses and is set up in the long term. Such a test bench can therefore such
- the scanning of the light beam emitted by the light source by means of the reflection element over the scanning angle range can be automated or manual.
- the calibration is automated by a controller reading and processing the detector signals and controlling the scanner optics to obtain the position for a maximum signal. This has the advantage that the calibration does not have to be performed by a user.
- the calibration is performed manually, wherein the detector signal is communicated to the user via an optical or acoustic signal.
- Another aspect of the invention relates to the projection device for the data glasses for carrying out the above-described method for
- the projection device has at least one light source for emitting a light beam and at least one arranged on a spectacle lens of the data glasses or can be arranged
- Deflection element for projecting an image on a retina of a user of the data glasses by deflecting and / or focusing the light beam on an eye lens of the user.
- the projection device is thereby
- Projection device has the advantage that it is easy to calibrate. Further advantages have already been mentioned above in connection with the procedure
- the invention further comprises a deflecting element for a
- the deflecting element has at least two Justagemarken, each alignment mark is disposed at a predetermined position relative to the surface of the deflecting element.
- the deflecting element can be arranged on the basis of the
- Adjustment marks are advantageously calibrated by the method described above.
- the deflection element has the advantage that it is easy to calibrate. Further advantages have already been described above in connection with the method.
- the invention further comprises a computer program which is set up to carry out the described steps of the method in order to be able to carry out a calibration of the projection device with this computer program. Furthermore, the invention comprises a machine-readable
- Storage medium on which such a computer program is stored, as well as an electronic control unit that is set up a
- Projection device for a data glasses or a data glasses by means of the described steps of the method to operate.
- Such an electronic control unit for example, as a microcontroller in a
- Projection device or data glasses to be integrated.
- FIG. 1 shows a schematic representation of a projection apparatus according to an embodiment
- FIG. 2 schematically shows a flow diagram of a method according to an embodiment.
- FIG. 3 shows a schematic representation of a deflecting element according to an embodiment
- FIGS. 4 to 6 each schematically illustrate a course of light beams in a method according to an embodiment
- Figure 7 shows schematically a data glasses according to an embodiment in isometric view.
- FIG. 1 shows the basic mode of operation of the projection device 100.
- a light beam 106 emitted by a laser diode as the light source 104 is collimated by means of a lens as a collimation element 114 and in the direction of a
- the reflection element 112 deflects the light in the direction of the holographic element 103
- the holographic element 103 is applied to a spectacle lens 402.
- the light beam 106 deflected by the holographic element 103 then strikes an eye lens 108, from where the light beam 106 is focused on the retina 110 of an eyeball 107 of a user.
- the light source 104 is arranged in a housing 105 attached to the eyeglass frame 120. At the output of the housing 105, the collimating element 114 is arranged. The light source 104, the collimating element 114 and the
- Reflection element 112 may be housed in a common housing, not shown, wherein the reflected from the reflection element 112
- Light beam 106 is coupled out by a arranged on one side of the housing window.
- This housing can on the temple 118 or on
- Eyeglass frame 120 to be attached.
- the projection direction 100 also has two adjustment marks 132, which are applied to the holographic element 103.
- FIG. 2 shows a flowchart of the method 500 for calibrating a projection device 100 for smart glasses.
- a light beam 106 emitted by a light source 104 is scanned over a scanning angle range by means of a reflection element 112, so that the light beam 106 deflected by the reflection element 112 has a surface area of a spectacle lens 402 of the data glasses
- a deflecting element which is designed as a holographic element 103, passes over which at least two adjustment marks 132nd wherein each alignment mark 132 is disposed at a predetermined position on the surface of the holographic element 103.
- the method 500 is determined, in each case which
- Adjustment marks 132 are hit by the light beam 106.
- FIG. 3 shows a deflection element for a projection device 100 for a data goggle 400.
- the deflection element is presently a holographic element 103.
- the holographic element 103 embodied as a layer is applied to a spectacle lens 402.
- the holographic element 103 has a
- the spectacle lens 402 is of a
- FIG. 4 shows the deflecting element of the holographic element 103
- FIG. 3 wherein in addition to the four Justagemarken 132 each have a detector 136 is arranged.
- a light beam 106 emitted by the light source 104 is scanned over the surface of the holographic element 103, the light beam 106 also sweeping over the four detectors 136.
- the light source 104 and the light beam 106 are here only schematically drawn to illustrate the scanning of the light beam 106.
- the reflection element 112 is not shown here. Since the positions of the detectors 136 on the holographic element 103 are known, it can be determined at which scan setting of the
- FIG. 5 shows a similar embodiment to FIG.
- Embodiment of Figure 4 four holographic adjustment elements 134 are here instead of the four detectors 136 on the four Justagemarken 132 arranged.
- Justage institute 134 each falling on them light beam 106 to a common point, the puncture point 146.
- a detector 136 is arranged, which detects the light beam 106, which are deflected by the four holographic adjustment elements 134.
- the position of the piercing point 146 need not be known, it is only important that all four holographic adjustment elements 134 redirect the respective light rays 106 to the piercing point 146.
- FIG. 6 shows a similar embodiment to FIG. 5.
- the four holographic adjustment elements 134 direct the light rays 106 incident on them parallel to the respective one
- holographic element 103 is a curved surface, the respective
- Detection plane 144 parallel to the plane of the holographic element 103.
- the four light beams 106 must be detected only on the detector arranged in the detection plane 144, the
- Figure 7 shows a schematic representation of a data glasses 400 with a
- Projection device 100 according to an embodiment.
- the projection device 100 is a projection device 100 according to an embodiment.
- Projection device 100 in this case has a scanner optics 152 and the holographic element 103.
- the scanner optics 152 is arranged in the housing 105 and transmits a light beam 106, not shown, through the appearance window 148 to the holographic element 103.
- the data glasses 400 are facing a spectacle lens 402 on which the holographic element 103 is disposed.
- the holographic element 103 is realized as part of the spectacle lens 402.
- the holographic element 103 is realized as a separate element and connected to the spectacle lens 402 by means of a suitable joining method.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017211914.4A DE102017211914A1 (de) | 2017-07-12 | 2017-07-12 | Verfahren zur Kalibrierung einer Projektionsvorrichtung für eine Datenbrille sowie Projektionsvorrichtung für eine Datenbrille zur Durchführung eines Verfahrens. |
PCT/EP2018/066617 WO2019011615A1 (de) | 2017-07-12 | 2018-06-21 | Verfahren zur kalibrierung einer projektionsvorrichtung für eine datenbrille sowie projektionsvorrichtung für eine datenbrille zur durchführung eines verfahrens. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3652579A1 true EP3652579A1 (de) | 2020-05-20 |
Family
ID=62748974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18734175.5A Withdrawn EP3652579A1 (de) | 2017-07-12 | 2018-06-21 | Verfahren zur kalibrierung einer projektionsvorrichtung für eine datenbrille sowie projektionsvorrichtung für eine datenbrille zur durchführung eines verfahrens. |
Country Status (5)
Country | Link |
---|---|
US (1) | US11487126B2 (de) |
EP (1) | EP3652579A1 (de) |
CN (1) | CN110832380B (de) |
DE (1) | DE102017211914A1 (de) |
WO (1) | WO2019011615A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019201134B4 (de) | 2019-01-29 | 2021-07-22 | Volkswagen Aktiengesellschaft | Verfahren, Computerprogramm mit Instruktionen und System zum Einmessen einer Augmented-Reality-Brille und Augmented-Reality-Brille zur Verwendung in einem Kraftfahrzeug |
JP7346864B2 (ja) * | 2019-03-22 | 2023-09-20 | セイコーエプソン株式会社 | 表示装置の制御方法 |
DE102019219624A1 (de) * | 2019-12-13 | 2021-06-17 | Robert Bosch Gmbh | Optische Mikrosystemvorrichtung und optisches Mikrosystem |
DE102022203075A1 (de) | 2022-03-29 | 2023-10-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Projizieren von Bildinhalten auf die Netzhaut eines Nutzers mit Hilfe eines optischen Systems |
DE102022211128A1 (de) | 2022-10-20 | 2024-04-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hybride Eye-Tracking-Vorrichtung und Laborkalibrationsverfahren und Feldkalibrationsverfahren zur Kalibration der hybriden Eye-Tracking-Vorrichtung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3309443B2 (ja) * | 1992-10-28 | 2002-07-29 | ソニー株式会社 | 眼鏡型ビューワー |
EP1840627B1 (de) * | 2000-10-07 | 2012-12-12 | metaio GmbH | Vorrichtung und Verfahren zur Bestimmung der Orientierung eines Auges |
ATE357680T1 (de) * | 2000-10-07 | 2007-04-15 | David Dickerson | Informationssystem und verfahren zur zurverfügungstellen von informationen unter verwendung eines holographischen elements |
FR2879313B1 (fr) | 2004-12-10 | 2007-04-06 | Essilor Int | Procede d'inscription de donnees sur une lentille, et lentille comprenant des donnees inscrites |
JP5316346B2 (ja) * | 2009-09-30 | 2013-10-16 | ブラザー工業株式会社 | 網膜走査型画像表示装置 |
WO2013179493A1 (ja) * | 2012-06-01 | 2013-12-05 | パイオニア株式会社 | 画像投影装置、ヘッドアップディスプレイ、制御方法及び光学素子 |
US9846307B2 (en) | 2013-03-25 | 2017-12-19 | Intel Corporation | Method and apparatus for head worn display with multiple exit pupils |
US10271042B2 (en) * | 2015-05-29 | 2019-04-23 | Seeing Machines Limited | Calibration of a head mounted eye tracking system |
JP6231591B2 (ja) * | 2015-06-25 | 2017-11-15 | 株式会社Qdレーザ | 画像投影装置 |
DE102015213376A1 (de) | 2015-07-16 | 2017-01-19 | Robert Bosch Gmbh | Projektionsvorrichtung für eine Datenbrille, Datenbrille und Verfahren zum Betreiben einer Projektionsvorrichtung für eine Datenbrille |
EP3136153B1 (de) * | 2015-08-26 | 2019-05-15 | Ricoh Company, Ltd. | Aktuatorsteuerungsvorrichtung, antriebssystem, videovorrichtung, bildprojektionsvorrichtung und aktuatorsteuerungsverfahren |
US9703374B1 (en) * | 2015-12-16 | 2017-07-11 | Google, Inc. | In-cell gaze tracking for near-eye display |
JP6231545B2 (ja) * | 2015-12-22 | 2017-11-15 | 株式会社Qdレーザ | 画像投影装置 |
-
2017
- 2017-07-12 DE DE102017211914.4A patent/DE102017211914A1/de active Pending
-
2018
- 2018-06-21 WO PCT/EP2018/066617 patent/WO2019011615A1/de unknown
- 2018-06-21 US US16/626,453 patent/US11487126B2/en active Active
- 2018-06-21 CN CN201880046465.7A patent/CN110832380B/zh active Active
- 2018-06-21 EP EP18734175.5A patent/EP3652579A1/de not_active Withdrawn
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Publication number | Publication date |
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US20200218075A1 (en) | 2020-07-09 |
CN110832380B (zh) | 2021-11-30 |
WO2019011615A1 (de) | 2019-01-17 |
US11487126B2 (en) | 2022-11-01 |
DE102017211914A1 (de) | 2019-01-17 |
CN110832380A (zh) | 2020-02-21 |
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