-
公开(公告)号：US20240272438A1
公开(公告)日：2024-08-15
申请号：US18641244
申请日：2024-04-19
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Kevin A. Keilbach , Scott M. DeLapp
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B6/0016 , G02B6/003 , G02B2027/0123 , G02B2027/0147 , G02B2027/0163
Abstract: An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.
-
公开(公告)号：US20240168296A1
公开(公告)日：2024-05-23
申请号：US18489662
申请日：2023-10-18
Applicant: Apple Inc.
Inventor： Alexander D. Schlaupitz , Edward J. Wrzesniewski , Graham C. Nelson , Hyungryul Choi , Kibyung Seong , Vikrant Bhakta , Xiaonan Wen , Zachary M. Beiley
CPC classification number: G02B27/0172 , G02F1/161 , G02B2027/0118
Abstract: An electronic device may include a first bias lens that transmits world light to an output coupler on a waveguide. The output coupler may transmit the world light while coupling image light out of the waveguide. A second bias lens may transmit the world light and the image light to an eye box. A tint layer may transmit the world light towards the output coupler. The tint layer may be planar and layered onto a planar surface of the first bias lens or another lens, may be separated from the first bias lens by an air gap, may be non-parallel relative to the waveguide, and/or may be curved and separated from the first bias lens and the waveguide by air gaps. When planar, the tint layer may be provided with spacers between substrates or between the tint layer and the waveguide to maximize parallelism.
-
公开(公告)号：US20240103272A1
公开(公告)日：2024-03-28
申请号：US18254351
申请日：2021-11-24
Applicant: Apple Inc.
Inventor： Guolin Peng , Vikrant Bhakta , Scott M. DeLapp , Hyungryul Choi , Di Hu
IPC: G02B27/01
CPC classification number: G02B27/0172
Abstract: A display may include illumination optics (36), a spatial modulator (40) and a waveguide (26). The illumination optics may produce illumination that is modulated by the spatial modulator to produce image light. The waveguide may direct the image light towards an eye box. The illumination optics may include light sources (58) an X-plate (44), and at least one Fresnel lens (60) interposed between the light sources and the X-plate. The Fresnel lenses may minimize the size of the illumination optics while still exhibiting satisfactory optical performance. The spatial light modulator may include a reflective display panel (50) and a powered prism (48) with a reflective coating on a curved reflective surface. The powered prism may optimize f-number while minimizing the volume of the spatial light modulator. The collimating optics may include a diffractive optical element (56) that compensates for thermal effects and chromatic dispersion in the display.
-
公开(公告)号：US20240027753A1
公开(公告)日：2024-01-25
申请号：US18335671
申请日：2023-06-15
Applicant: Apple Inc.
Inventor： Michael J. Oudenhoven , Brian S. Lau , Cameron A. Harder , Depeng Wang , Vikrant Bhakta
CPC classification number: G02B27/0093 , G02B17/086 , G06F3/013 , G06F1/163
Abstract: A head-mounted device may have a housing with a frame that supports lenses. Each lens may have a positive bias lens element and a negative bias lens element. A waveguide may overlap the lens. During operation, images from the waveguide may be provided to an eye box through the negative bias lens element. An eye sensor such as a gaze tracking camera may operate through the negative bias lens element. The negative bias lens element may have a protruding portion through which the sensor operates, may have a surface facing the sensor that has a curved surface to provide a desired lens characteristic, may have a prism for helping to couple light from the eye box to the eye sensor, and/or may have other features to facilitate use of the eye sensor to monitor the eye of a user in the eye box.
-
公开(公告)号：US20210405379A1
公开(公告)日：2021-12-30
申请号：US17474366
申请日：2021-09-14
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , David A. Kalinowski , Hyungryul Choi , Nathanael D. Parkhill , Stanley K. Melax , Byron R. Cocilovo
IPC: G02B27/01
Abstract: An electronic device may include a display module that produces light having an image, a lens that directs the light to a waveguide, and a waveguide that directs the light to an eye box. The lens may produce a foveated image in the light by applying a non-uniform magnification to the image in the light. The non-uniform magnification may vary as a function of angle within a field of view of the lens. This may allow the foveated image to have higher resolution within the central region than in the peripheral region. Performing foveation using the lens maximizes the resolution of images at the eye box without increasing the size of the display module. Control circuitry on the device may apply a pre-distortion to the image that is an inverse of distortion introduced by the lens in producing the foveated image.
-
Patent Agency Ranking
公开(公告)号：US20210405378A1
公开(公告)日：2021-12-30
申请号：US17474349
申请日：2021-09-14
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Bradley C. Steele , Brian S. Lau , Cameron A. Harder , David A. Kalinowski , Eric J. Hansotte , Guolin Peng , Scott M. DeLapp , Vikrant Bhakta , Jonathan C. Moisant-Thompson
Abstract: An electronic device may include an optical combiner with a waveguide. The waveguide may have an output coupler that directs high resolution light towards an eye box within a field of view. Peripheral light sources may provide low resolution peripheral light to the eye box about a periphery of the field of view. The peripheral light sources may be mounted to a frame for the waveguide, to an additional substrate mounted to the frame and overlapping the waveguide, in a low resolution projector that projects the peripheral light towards reflective structures in the additional substrate, or in a display module that produces the high resolution light. The optical combiner may overlay real world light with the high resolution light and the low resolution peripheral light.
-
公开(公告)号：US20200004020A1
公开(公告)日：2020-01-02
申请号：US16409681
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Hyungryul Choi , Guolin Peng , Scott M. DeLapp
Abstract: An electronic device may have a spatial light modulator. Control circuitry in the electronic device may use the spatial light modulator to generate images. A light source may be used to produce illumination for the spatial light modulator. An optical system may direct the illumination onto the spatial light modulator and may direct corresponding reflected image light towards eye boxes for viewing by a user. Head-mounted support structures may be used to support the spatial light modulator, light source, and optical system. The light source may include light-emitting elements such as light-emitting diodes or lasers. Multiple light-emitting elements may be provided in the light source in a one-dimensional or two-dimensional array. During operation, the control circuitry can individually adjust the light-emitting elements.
-
公开(公告)号：US20240393591A1
公开(公告)日：2024-11-28
申请号：US18488865
申请日：2023-10-17
Applicant: Apple Inc.
Inventor： Scott M. DeLapp , Vikrant Bhakta , Hyungryul Choi , Guolin Peng , Di Hu
Abstract: A display device may include first and second display modules that provide image light to first and second waveguides. The waveguides may direct the image light to first and second eye boxes. Each display module may include optics mounted to a housing and mechanical alignment structures that mechanically adjust the position of an optical axis of the optics. The alignment structures may rotate the entire housing, may mechanically translate the optics, may adjust the position of a spatial light modulator within the module, and/or control circuitry may change a subset of pixels used by the modulator to compensate for optical misalignment between the first and second eye boxes. The device may include optical misalignment sensors that detect the optical misalignment. The control circuitry may compensate for the optical misalignment as detected by the optical misalignment sensors.
-
公开(公告)号：US20240201500A1
公开(公告)日：2024-06-20
申请号：US18508004
申请日：2023-11-13
Applicant: Apple Inc.
Inventor： Kevin A. Keilbach , Barbara J. Kruse , Vikrant Bhakta , Hyungryul Choi
CPC classification number: G02B27/0172 , G02B6/262 , G02B2027/011
Abstract: A display may include a waveguide that directs image light towards an eye box within a field of view (FOV). A first lens may transmit world light to the waveguide and a second lens may transmit the world light and the image light to the eye box. One or more surfaces of the first and second lenses may collectively have a first region with a first optical power, a second region with a second optical power, a corridor with gradient optical power and constant astigmatism, and blending regions with variable astigmatism. The second region may be shifted downwards in elevation angle, the corridor may be elongated, and/or the blending regions may be disposed away from the FOV to prevent the blending regions from introducing astigmatism to the image light at the eye box.
-
公开(公告)号：US20240184116A1
公开(公告)日：2024-06-06
申请号：US18440534
申请日：2024-02-13
Applicant: Apple Inc.
Inventor： Di Hu , Guolin Peng , Vikrant Bhakta , Jose A Dominguez-Caballero , Hyungryul Choi
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/0118
Abstract: An electronic device may have a display system with a module that produces image light and a waveguide that directs the image light towards an eye box. The module may include a light source, spatial light modulator, and collimating lens between the lens and modulator. The lens may direct illumination from the light source to the modulator, which modulates the illumination to produce the image light. The lens may have a geometry that illuminates the modulator with a non-uniform illumination pattern to mitigate subsequent brightness non-uniformity introduced by the waveguide. The light source may include one or more LEDs that are independently driven by control circuitry over one or more drive lines to help mitigate the non-uniformity introduced by the waveguide and/or to operate the display in a heads-up display mode.
-
-
-
-
-
-
-
-
-
Search Results
38
records
(took 0.023 seconds)
