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公开(公告)号：US11740467B2
公开(公告)日：2023-08-29
申请号：US17231975
申请日：2021-04-15
Applicant: Apple Inc.
Inventor： Guolin Peng , Hyungryul Choi , Scott M. DeLapp , Tyler G. Anderson
CPC classification number: G02B27/0172 , G02B6/003 , G02B6/0016 , G02B6/0018 , G02B6/0035 , G02B6/0038 , G02B6/0045 , G02B2027/011 , G02B2027/0178
Abstract: An electronic device may have a pixel array. A light source may illuminate the pixel array to produce image light. The image light may pass through a multi-element lens and may be coupled into a waveguide using an input coupler such as a prism. An output coupler such as a diffraction grating may couple the image light out of the waveguide and towards a user. The user may view the image light and may observe real-world objects through the waveguide. The waveguide may have locally modified portions that define an aperture stop at a distance from an exit surface of the multi-element lens. The multi-element lens may have first and second achromatic doublets and first and second singlets between the first and second achromatic doublets. The lens elements of the multi-element lens may include lens elements with aspheric surfaces.
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Patent Agency Ranking
公开(公告)号：US11740466B1
公开(公告)日：2023-08-29
申请号：US17203368
申请日：2021-03-16
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Scott M. DeLapp
CPC classification number: G02B27/0172 , G06F3/013 , G02B2027/0187
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 that couples the light into the waveguide. The input coupler may include a prism on the waveguide and a scanning mirror. The scanning mirror may receive the light through the waveguide and the prism and may reflect the light into the waveguide through the prism while being rotated over a set of orientations. The scanning mirror may fill a relatively large field of view eye box with a corresponding image frame despite the limited field of view of the image light produced by the display module. The orientation of the scanning mirror may be adjusted based on gaze tracking data.
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公开(公告)号：US20220004005A1
公开(公告)日：2022-01-06
申请号：US17475850
申请日：2021-09-15
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Scott M. DeLapp
IPC: G02B27/01
Abstract: An electronic device may include an emissive display panel that emits light, a waveguide with an output coupler that directs the light towards an eye box, and an input coupler that couples the light into the waveguide. A lens directs the light towards the input coupler. Optical components optically coupled between the display panel and the lens may provide the image light with a field angle dependent pupil size upon coupling of the image light into the waveguide by the input coupler. This prevents light that would otherwise pass into the waveguide at angles unsuitable for total internal reflection from passing to the lens, thereby mitigating stray light in the system and optimizing contrast in the image light received at the eye box. The optical components may include an array of apertures, an array of microlenses, an array of tapered optical tunnels, or an array of optical fibers.
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公开(公告)号：US20210247610A1
公开(公告)日：2021-08-12
申请号：US17161469
申请日：2021-01-28
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Byron R. Cocilovo , Guolin Peng , Hyungryul Choi , Scott M. DeLapp , Se Baek Oh
Abstract: An electronic device may include an emissive display panel that emits light. The light may propagate along an optical path extending to an eye box. A waveguide with an input coupler and an output coupler may be interposed on the optical path. An angle-selective transmission filter (ASTF) may be interposed on the optical path and may filter the emitted light as a function of angle to remove high-angle light from the optical path before the light is provided to the output coupler. The ASTF may include diffractive grating structures such as thin-film holograms, volume holograms, or surface relief gratings, louvered mirrors, multi-layer coatings, or a pinhole array. This ASTF may serve to minimize stray light within the display, thereby optimizing the contrast and the modulation transfer function (MTF) of the display.
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公开(公告)号：US20210231960A1
公开(公告)日：2021-07-29
申请号：US17231975
申请日：2021-04-15
Applicant: Apple Inc.
Inventor： Guolin Peng , Hyungryul Choi , Scott M. DeLapp , Tyler G. Anderson
Abstract: An electronic device may have a pixel array. A light source may illuminate the pixel array to produce image light. The image light may pass through a multi-element lens and may be coupled into a waveguide using an input coupler such as a prism. An output coupler such as a diffraction grating may couple the image light out of the waveguide and towards a user. The user may view the image light and may observe real-world objects through the waveguide. The waveguide may have locally modified portions that define an aperture stop at a distance from an exit surface of the multi-element lens. The multi-element lens may have first and second achromatic doublets and first and second singlets between the first and second achromatic doublets. The lens elements of the multi-element lens may include lens elements with aspheric surfaces.
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公开(公告)号：US20200159020A1
公开(公告)日：2020-05-21
申请号：US16610841
申请日：2018-05-11
Applicant: Apple Inc.
Inventor： Guolin Peng , Hyungryul Choi , Scott M. DeLapp , Tyler G. Anderson
Abstract: An electronic device may have a pixel array. A light source may illuminate the pixel array to produce image light. The image light may pass through a multi-element lens and may be coupled into a waveguide using an input coupler such as a prism. An output coupler such as a diffraction grating may couple the image light out of the waveguide and towards a user. The user may view the image light and may observe real-world objects through the waveguide. The waveguide may have locally modified portions that define an aperture stop at a distance from an exit surface of the multi-element lens. The multi-element lens may have first and second achromatic doublets and first and second singlets between the first and second achromatic doublets. The lens elements of the multi-element lens may include lens elements with aspheric surfaces.
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