EP3652581A1 - Projektionsvorrichtung für eine datenbrille, datenbrille sowie verfahren zum betreiben einer projektionsvorrichtung - Google Patents
Projektionsvorrichtung für eine datenbrille, datenbrille sowie verfahren zum betreiben einer projektionsvorrichtungInfo
- Publication number
- EP3652581A1 EP3652581A1 EP18735526.8A EP18735526A EP3652581A1 EP 3652581 A1 EP3652581 A1 EP 3652581A1 EP 18735526 A EP18735526 A EP 18735526A EP 3652581 A1 EP3652581 A1 EP 3652581A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light beam
- projection device
- light
- optical element
- lens
- 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- Withdrawn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
- G02B27/01—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
- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/086—Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/163—Wearable computers, e.g. on a belt
-
- 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
- G02B2027/0147—Head-up displays characterised by optical features comprising a device modifying the resolution of the displayed image
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/185—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors with means for adjusting the shape of the mirror surface
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
Definitions
- the present invention relates to a projection device for smart glasses, data glasses, a method for operating a projection device, a computer program, a machine-readable storage medium and an electronic control device.
- HMD helmet-mounted or head-mounted
- HWD headworn displays
- VR Virtual Reality
- AR augmented reality
- HMDs Due to high costs and bulky optics, HMDs are still used primarily in the military sector. However, also civilian professional groups and consumers in everyday life and leisure time of a handy and
- HMDs Consumer product in mass production successfully placed on the market. A big challenge here are e.g. mutually influencing requirements for the optical and mechanical specifications.
- HMDs There are currently two different types of HMDs on the market. On the one hand, these are lightweight, handy HMDs, whose imaging and sensory system is kept as small as possible, which is why they have only a limited
- HMDs with relatively bulky optics possibly in combination with multiple sensors and cameras, which provide more sophisticated imaging and interactions between the Environment perception and the superimposed image information allow, but significantly larger, heavier and less ergonomic to handle.
- retina scanner device RSD
- imaging optic which is an image of a
- Polychromatic systems also generated by means of multiple laser sources, a beam that can be directed through a MEMS (micro-electro-mechanical system) level and scanned by means of mirror deflection over the retina.
- MEMS micro-electro-mechanical system
- One way to use the eye in every direction is to create multiple eyeboxes. This can e.g. through the use
- wavelength-specific, applied to the spectacle lens deflecting elements can be achieved.
- per perceptible color e.g. red, green and blue
- the wavelengths for a color should be so similar that they are visually indistinguishable.
- the human eye has its highest resolution only in the center of the sharpest vision. Only a very small angular range, which is imaged on the fovea, is really sharp. In the areas farther out in the field of view, the resolution is much lower.
- the depth perception of humans is based on different
- Depth hints controlled accordingly so that it can come to conflicting, confusing depth information.
- a prominent example is the Vergence accommodation conflict.
- the visual axes of the observer converge in the desired depth, but is always accommodated on the - possibly virtual - screen. The result is an unnatural visual situation, which, if it is too extreme, can be unpleasant and lead to an ambiguous perception of the displayed image information.
- 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 projection device for data glasses has at least one light source for emitting at least one light beam.
- an HMD Under a data glasses, an HMD can be understood.
- the term data glasses should also be understood a video glasses, a helmet display or a VR helmet.
- 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 light to emit different wavelengths.
- the light beam can for
- a plurality of pixels serve on the retina, wherein the light beam, the retina, for example, in lines and columns or in the form of Lissajous patterns sweeps and can be pulsed accordingly.
- a spectacle lens can be understood a made of a transparent material such as glass or plastic disc element.
- the spectacle lens may be formed approximately as a correction glass or a tint for filtering light of certain wavelengths such as
- UV light for example, have UV light.
- a light beam can be understood in the paraxial approximation to be a Gaussian beam.
- the projection device furthermore has at least one deflection element arranged or arrangeable on a spectacle lens of the data glasses for projecting an image onto a retina of a user of the data glasses by deflecting and / or focusing the at least one light beam on an eye lens of the user.
- the deflecting element may e.g. a holographic element or a freeform mirror.
- a holographic element for example, a holographic-optical device, HOE for short, can be understood, which is e.g. can perform the function of a lens, a mirror or a prism.
- HOE holographic-optical device
- 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. Thereby can
- Image information to be overlaid with the environment is an image information to be overlaid with the environment.
- a light beam can thus be applied to a retina of a wearer of the
- Data goggles are directed that the wearer perceives a sharp virtual image.
- the image may be scanned by scanning a laser beam a micromirror and the holographic element are written directly on the retina.
- Such a projection device can be built in a small space
- the holographic element can be realized comparatively inexpensive and makes it possible to bring a picture content in a sufficient distance to the carrier. This allows the contact-analogous superimposition of the image content with the environment.
- the fact that the image can be written directly onto the retina by means of the holographic element can be reduced to a flat display element, such as e.g. an LCD or DMD based system. Furthermore, a particularly large depth of focus can be achieved thereby.
- the deflection 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 called a functional region
- the projection device has at least one reflection element for reflecting the light beam onto the deflection element.
- 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, for example, have a mirror surface which can be tilted about at least one axis.
- 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 deflecting element can be swept over the surface, in particular approximately in rows and columns, with the light beam.
- the reflection element may be a mirror with a deformable surface. This has the advantage that the reflection element can not only deflect the light beam, but also change beam parameters. This can reduce the number of adaptive optical elements.
- the projection device has at least one adaptive optical element for the adaptive change of at least one beam parameter, wherein the at least one adaptive optical element is arranged in the beam path between the at least one light source and the at least one deflection element.
- An adaptive optical element can be understood as any optical element which is suitable for changing a beam parameter.
- an optical element can only slightly change a beam parameter at the location of the optical element, the term
- Radiation parameters may include the following: Divergence angle or beam divergence, beam waist or beam diameter, and distance of the light beam to the optical axis. It should also be noted that a light beam is generally not rotationally symmetric. This means that the behavior of a light beam may be different in, for example, two mutually orthogonal directions. In general, therefore, a ray of light at one place becomes two
- the adaptive optical element can be designed to be switchable.
- a control unit may be provided which controls or regulates the adaptive optical element.
- the optical system can be actively adapted to different system configurations or also to different users.
- the adaptive optical element may e.g. a lens with variable
- the telescope may, for example, have a Galilean or Keplerian arrangement.
- variable focal length telescope can be realized by an ordinary telescope in which the distance of the lenses from each other can be varied.
- a focal length of one or more lenses can be changed.
- shape of the lens may be asymmetrically variable, e.g. to compensate or bring about astigmatism.
- the deformable surface mirror changes e.g. by applying an electrical voltage its surface shape. This changes the optical properties of the mirror, in particular the focal length.
- beamforming is also possible, i. a change in the beam profile.
- Such a mirror could be mounted in the optical path in front of the scanning micromirror.
- the scanning micromirror can also be further developed so that it additionally deforms itself in a controlled manner during the scan movement.
- the adaptive optical element also non-rotationally symmetric changes are possible, so that e.g. also beam forms and astigmatisms can be influenced.
- This can e.g. be realized by a liquid lens with segmented electrodes for astigmatic lens profiles.
- the at least one reflection element is designed and set up to reflect the at least one light beam in such a way that the at least one light beam reaches an arbitrary point of one
- the at least one reflection element is designed and set up, the at least one Reflect light beam so that the at least one light beam is scanned over a portion of the deflection. This advantageously achieves that the light beam can reach every point of the functional region.
- the at least one reflection element is formed and arranged, the at least one light beam on the above
- the at least one adaptive optical element is designed and set up to change at least one beam parameter of the at least one light beam as a function of a viewing direction of a user as well as a point of impact of the at least one light beam on the deflecting element.
- the image does not appear to a user worse than high-resolution transmission, since the user can not see clearly in these areas of vision anyway.
- the low-resolution transmission may be accomplished by transmitting the light beam in the fuzzy viewing areas with fewer pixels each having a larger spot size. Since the solid angle range of the sharpest vision of the person depends on the viewing direction, according to this embodiment, where the human sees the sharpest, one can
- Image high resolution i. with more pixels and the smallest possible
- the adaptive optical element can be designed and set up such that at least one beam parameter of the at least one light beam is individually changed as a function of the respective user and his current viewing situation.
- the adaptive optical element can be designed and set up such that at least one beam parameter of the at least one light beam is individually changed as a function of the respective user and his current viewing situation.
- the adaptive optical element can be designed and set up in such a way that, depending on the
- Brightness conditions in the environment of the user i. depending on the brightness that the user sees through the data glasses, at least one
- Beam parameter of the at least one light beam is changed.
- the adaptive optical element and the at least one light source are designed and set up such that an irradiation intensity at each point of the retina appears to be the same or bright for a user. It does not matter whether the light beam has a small or a large beam diameter. Furthermore, it must be considered that an identical irradiance could be perceived differently brightly by the individual human eye at different points of the retina.
- the projection device has at least one collimation element for collimating the at least one light beam which is emitted by the at least one light source.
- the collimation element is preferably arranged directly after the light source.
- Kollimations comprise preferred identical to the number of light sources.
- a collimation element is arranged directly after each light source.
- the projection device has at least one correction optics which does not improve the symmetry and / or reduce the spot size of the light beam
- the at least one correction optics is preferably arranged after the at least one collimation element. In the event that several light sources with different wavelengths are used, which are combined to form a light beam, the at least one correction optics is preferred before
- the at least one correction optics is arranged after the beam merging. This arrangement requires only a correction optics, which is designed and optimized for all wavelengths used.
- one or more of the lenses may have variable refractive properties. The changing of the distance between the lenses as well as the change of the refractive properties of the lens is synchronized with the mirror movement and depending on the pupil position and, where appropriate, the user and his situation.
- an adaptive optical element for example, a refractive
- Telescope preferably with adaptive lens spacings for varying the beam diameter, and alternatively adaptive lenses, such as liquid lenses, or combinations of both approaches are inserted into the beam path.
- a homogenization of the individual beam profiles by wavelength-specific correction optics before the merging of the beam paths followed by an adaptive wavelength-overlapping correction optics is used after merging the individual beam paths in order to save space and costs.
- a wavelength-specific optical system is used for a monochromatic or quasi-monochromatic light beam. This is the case, for example, in the case of polychromatic systems, before beam collimation at the individual light sources.
- optics adapted to the wavelengths used are preferably used for a polychromatic light beam.
- This optics can also be called across wavelengths. This is the case with polychromatic systems after beam collation.
- correction optics or as an adaptive optical element can also be a
- Liquid lens can be used with segmented electrodes. This has the advantage that astigmatisms can be generated or compensated. Another advantage is that the focal length of the liquid lens is variable, i. that a change of the beam parameter can be controlled or regulated.
- the projection device has three monochromatic light sources for emitting a respective light beam, the three light sources each having different wavelengths. The three different wavelengths of the three light sources preferably form an RGB color space.
- An RGB color space is an additive color space that absorbs color perceptions by the additive mixing of three primary colors, e.g. Red,
- the three light beams are preferably merged into a single light beam.
- an optical waveguide with diffractive coupling elements or dichroic mirrors is preferably used.
- Each beam path of the three light beams preferably has at least one adaptive optical element.
- the at least one adaptive optical element if it is arranged after a beam merging of the three light beams, may also be only one. This advantageously achieves that for everyone Beam of light a beam parameter can be changed.
- each beam path of the three light beams has exactly one adaptive optical element.
- wavelength-specific optics are preferably used for each light beam.
- wavelength-overlapping optics are preferably used for the merged light beam.
- the at least one adaptive optical element is preferably arranged after merging the light beams of the three light sources. This has the advantage that a simple construction can be realized.
- the invention further comprises a data glasses.
- This has a spectacle lens and a projection device described above, wherein the deflecting element is arranged on the spectacle lens.
- the invention further comprises a method for operating a
- Beam parameter of the at least one light beam both in dependence of a line of sight of a user as well as a function of a point of impact of the at least one light beam changed on the deflecting.
- the change is preferably made by the at least one adaptive optical element.
- the at least one beam parameter of the at least one light beam is preferably changed as a function of an image content.
- 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 the method described above with this computer program. Furthermore, the invention comprises a machine-readable storage medium, on which such a computer program is stored, as well as a
- Such an electronic Control unit can, 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
- FIGS. 2 to 4 show schematic representations of a method for operating a projection apparatus according to an embodiment in each case
- FIGS. 5 to 11 each show a schematic illustration of a scanner optics of a projection apparatus according to an embodiment
- FIG. 12 shows a schematic isometric view of data glasses according to one embodiment.
- FIG. 1 shows the basic mode of operation of the projection device 100.
- the projection device 100 has a scanner optics 152 and a deflecting element, which in this embodiment is designed as a holographic element 103.
- the holographic element 103 is attached to a lens 402.
- the scanner optics 152 is arranged in a housing 105 and has a light source, a collimation element and a reflection element, which are not shown in FIG. Different embodiments of the scanner optics 152 are shown in FIGS. 5 to 12.
- a light beam 106 emitted by the scanner optics 152 is transmitted through a
- Exit window 148 in the direction of the deflecting 102 sent.
- the deflected by the deflection element 102 light beam 106 then strikes an eye lens 108 of a user, from where the light beam 106 on the retina 110 of a Eyeball 107 is focused.
- the scanner optics 152 is in an am
- FIG. 2 shows a scan path 122 of a light beam scanned over a deflection element 102, which results when a projection device according to FIG
- FIG. 2 shows what illumination the deflection element 102 experiences when a light beam is scanned over the surface of the deflection element 102, and during scanning the beam diameter is changed as a function of the point of impingement of the light beam on the deflection element 102.
- the scan path 122 starts in the upper left corner of FIG. 2 and ends in the lower left corner.
- the light source 104 is turned off. Only in the second line of the scan path 122 is the
- the light source is switched off again and only turned on again in the fourth row at the small spots 126.
- the light source is turned on at the center of the large spots 124 and at the center of the small spots 126, respectively.
- the thus described scan path 122 is formed in the region in which the image is formed by the small spots 126
- the illumination illustrated in FIG. 2 is preferably selected when the viewing direction of a user extends from the pupil to a point in the middle of the image area with high resolution.
- a gaze tracking system detects that the user is looking at another point on the diverter 102, the illumination of the diverter 102 is adjusted to provide a high resolution around the area the user is looking at. This is illustrated in FIG. 3, where a user looks further to the left in comparison with FIG. 2, so that the high-resolution region is further to the left than in FIG. 2.
- FIG. 4 shows an illumination of a deflecting element 102 with two
- Image areas of high resolution This can be used for generating depth impressions or for marking objects or image contents as well as for directing the viewing direction.
- two symmetrical beams with different beam diameters are shown here. However, more than two different beam diameters can be used.
- the scan path 122 can also be chosen differently.
- the change of the beam parameter is effected by an adaptive optical element.
- FIG. 5 shows a scanner optics 152, which is held in a housing 105.
- the scanner optics 152 forms together with the not shown
- the light source 104 emits a light beam 106 which passes through the
- Collimating element 114 is collimated.
- the collimated light beam 106 then strikes an adaptive optical element 140.
- the light beam 106 is not shown after the Kollimationselement 114 in Figures 5 to 11.
- the adaptive optical element 140 is designed and set up, both as a function of a line of sight of a user and as a function of a point of incidence of the at least one light beam 106 on the deflecting element to change a beam parameter of the light beam 106.
- the correction optics 116 depicted in FIG. 5 are designed for only one wavelength, namely those used by the light source 104.
- the correction optics 116 shown in the figure description can be used for
- Example cylindrical lens pairs be spherical or aspherical lenses.
- the optical properties of these correction optics 116 are not changeable. According to further embodiments, the optical properties of the correction optics 116 are variable.
- FIG. 6 differs from FIG. 5 in that a telescope 154 for beam widening or beam reduction is arranged between the adaptive optical element 140 and the reflection element 112. Since the telescope 154 varies beam parameters, the telescope 154 is also an adaptive optical element 140.
- the telescope 154 may be in addition to beam expansion or
- Beam Reduction also achieve astigmatic changes in beam parameters.
- the arrangement of the adaptive optical element 140 and the telescope 154 may be reversed.
- between the two adaptive optical element 140 and the telescope 154 may be reversed.
- FIG. 7 shows a scanner optics 152 for a polychromatic system with three different light sources 104.
- the three different light beams 106 each pass through a collimation element 114 and a correction lens 116, and are then combined by means of two dichroic mirrors 150 into a merged beam 106, which first points to a Telescope 154 for beam expansion or beam reduction and then an adaptive optical element 140 hits.
- the arrangement of the adaptive optical element 140 and the telescope 154 may be reversed.
- an adaptive optical element 140 or a telescope 154 for beam widening or beam reduction is arranged between the dichroic mirrors 150 and the reflection element 112.
- FIG. 8 shows a similar scanner optics as in FIG. 7, but differs in the beam merging of the polychromatic system.
- the three light beams 106 with different wavelengths are coupled in accordance with Figure 8 by means of two diffractive coupling elements 158 in a light guide 156.
- the merged light beam 106 after exiting the light guide 156, first strikes an adaptive optical element 140 and then a telescope 154 for beam broadening or beam reduction.
- the arrangement of the adaptive optical element 140 and the telescope 154 may be reversed.
- Reflection element 112 two adaptive optical elements 140 arranged. According to a further embodiment, only an adaptive optical element 140 or a telescope 154 for beam widening or beam reduction is arranged between the end of the light guide 156 and the reflection element 112.
- FIG. 9 shows a scanner optical system 152 for a monochromatic system with a light source 104. After the collimation element 114, the light beam 106 first strikes a correction optical system 116 and then a telescope 154
- Embodiment may be the arrangement of the correction optics 116 and the telescope
- FIG. 10 shows a scanner optics 152 for a polychromatic system, in which the beam merging is identical to that in FIG.
- the light guide 156 guides the merged beam to a deflection prism 160, in which the light beam 106 is deflected twice, so that it then has a reverse propagation direction. Thereafter, the deflected light beam 106 hits first on a telescope 154 for beam expansion or beam reduction and then on a reflection element 112, from where it exits through an exit window 148 from the housing 105.
- the telescope 154 is replaced by one or two adaptive optical elements 140.
- a telescope 154 for beam widening or beam reduction and an adaptive optical element 140 is arranged between the deflection prism 160 and the reflection element 112.
- the arrangement of the adaptive optical element 140 and the telescope 154 may be reversed.
- FIG. 11 shows a scanner optics 152 for a polychromatic system, in which the beam merging is identical to that in FIG.
- Scanner optics 152 taken in another housing 105.
- merged light beam 106 strikes after the two dichroic mirrors 150 initially on another collimating element 114 and is then coupled into a light guide 156. After the light guide 156, the light beam 106 is deflected twice in a deflection prism 160. After that, the diverted meets
- FIG. 11 shows an identical structure to the deflecting prism 160 as in FIG. 10, the embodiments disclosed in connection with FIG. 10 can also be applied to FIG.
- FIG. 12 shows a schematic illustration of a data goggle 400 with a projection device 100 according to one exemplary embodiment.
- Projection device 100 in this case has a scanner optics 152 and the deflecting element 102.
- the scanner optics 152 is arranged in the housing 105 and transmits a light beam 106, not shown, through the appearance window 148 onto the deflection element 102.
- the data spectacle 400 has a spectacle lens 402 on which the deflection element 102 is arranged.
- the deflecting element 102 is realized as part of the spectacle lens 402.
- the deflecting element 102 is realized as a separate element and connected to the spectacle lens 402 by means of a suitable joining method.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017211932.2A DE102017211932A1 (de) | 2017-07-12 | 2017-07-12 | Projektionsvorrichtung für eine Datenbrille, Datenbrille sowie Verfahren zum Betreiben einer Projektionsvorrichtung |
PCT/EP2018/066623 WO2019011616A1 (de) | 2017-07-12 | 2018-06-21 | Projektionsvorrichtung für eine datenbrille, datenbrille sowie verfahren zum betreiben einer projektionsvorrichtung |
Publications (1)
Publication Number | Publication Date |
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EP3652581A1 true EP3652581A1 (de) | 2020-05-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18735526.8A Withdrawn EP3652581A1 (de) | 2017-07-12 | 2018-06-21 | Projektionsvorrichtung für eine datenbrille, datenbrille sowie verfahren zum betreiben einer projektionsvorrichtung |
Country Status (4)
Country | Link |
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EP (1) | EP3652581A1 (de) |
CN (1) | CN111051962B (de) |
DE (1) | DE102017211932A1 (de) |
WO (1) | WO2019011616A1 (de) |
Families Citing this family (7)
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DE102019219520A1 (de) * | 2019-12-13 | 2021-06-17 | Robert Bosch Gmbh | Verfahren und Bilderzeugungs- und Bilddarstellungsvorrichtung zum Erzeugen eines Bildes in einem Auge eines Benutzers |
DE102020201114A1 (de) | 2020-01-30 | 2021-08-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Datenbrille und Verfahren zu ihrem Betrieb |
CN111562715A (zh) * | 2020-05-25 | 2020-08-21 | 深圳市点睛创视技术有限公司 | 一种用于微型投影的复合准直装置及系统 |
CN111766653B (zh) * | 2020-06-02 | 2022-03-11 | 北京梦想绽放科技有限公司 | 一种波导反射面及显示系统 |
DE102021104528A1 (de) | 2021-02-25 | 2022-08-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Optisches System für eine virtuelle Netzhautanzeige und Verfahren zum Projizieren von Bildinhalten auf eine Netzhaut |
CN117693788A (zh) * | 2021-09-23 | 2024-03-12 | Oppo广东移动通信有限公司 | 图像投影设备及视网膜投影方法 |
CN114594575A (zh) * | 2022-03-31 | 2022-06-07 | 歌尔光学科技有限公司 | 一种光学投影系统以及电子设备 |
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JP4893200B2 (ja) * | 2006-09-28 | 2012-03-07 | ブラザー工業株式会社 | 光束転送用の光学系、及び、これを用いた網膜走査型ディスプレイ |
JP5216761B2 (ja) * | 2007-09-26 | 2013-06-19 | パナソニック株式会社 | ビーム走査型表示装置 |
CN103119512A (zh) * | 2008-11-02 | 2013-05-22 | 大卫·乔姆 | 近眼式显示系统和装置 |
US8783874B1 (en) * | 2012-01-18 | 2014-07-22 | Nusensors, Inc. | Compressive optical display and imager |
US8754829B2 (en) * | 2012-08-04 | 2014-06-17 | Paul Lapstun | Scanning light field camera and display |
US9488837B2 (en) * | 2013-06-28 | 2016-11-08 | Microsoft Technology Licensing, Llc | Near eye display |
CN112203067A (zh) * | 2014-03-03 | 2021-01-08 | 埃韦视觉有限公司 | 眼睛投影系统和眼睛投影方法 |
TWI688789B (zh) * | 2014-11-20 | 2020-03-21 | 美商英特爾股份有限公司 | 虛擬影像產生器及投影虛擬影像的方法 |
CN105988217A (zh) * | 2015-02-10 | 2016-10-05 | 广州南北电子科技有限公司 | 一种视频眼镜 |
CA2976905A1 (en) * | 2015-02-17 | 2016-08-25 | Thalmic Labs Inc. | Systems, devices, and methods for eyebox expansion in wearable heads-up displays |
EP3104215A1 (de) * | 2015-06-09 | 2016-12-14 | Nokia Technologies Oy | Vorrichtung und verfahren für augennahe anzeige |
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 |
CN205374872U (zh) * | 2015-11-03 | 2016-07-06 | 北京蚁视科技有限公司 | 一种瞳距自适应功能头戴式近眼显示器 |
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CN111051962A (zh) | 2020-04-21 |
WO2019011616A1 (de) | 2019-01-17 |
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