公开(公告)号：US20220004009A1

公开(公告)日：2022-01-06

申请号：US17479322

申请日：2021-09-20

Applicant: Apple Inc.

Inventor： Graham B. Myhre ,  Guolin Peng ,  Hyungryul Choi ,  Scott M. DeLapp ,  Vikrant Bhakta

IPC: G02B27/01 ,  G02B27/00

Abstract: An electronic device may include a display module that produces foveated images having high and low resolution regions. The module may include a reflective display panel that produces first reflected light during first time periods and second reflected light during second time periods. The first reflected light may reflect off of a beam splitter to form the low resolution region of the foveated image. The second reflected light may be transmitted by the beam splitter, de-magnified by a lens, and redirected by an optical steering element to produce the high resolution region at a desired, adjustable, location in the foveated image. The reflective display panel may be replaced by sets of emissive display panels that concurrently display the high and low resolution regions in the foveated image. The sets of emissive display panels may be replaced by front-lit reflective display panels.

公开(公告)号：US11009707B2

公开(公告)日：2021-05-18

申请号：US16610841

申请日：2018-05-11

Applicant: Apple Inc.

Inventor： Guolin Peng ,  Hyungryul Choi ,  Scott M. DeLapp ,  Tyler G. Anderson

IPC: G02B27/01 ,  F21V8/00

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.

公开(公告)号：US20200174284A1

公开(公告)日：2020-06-04

申请号：US16612336

申请日：2018-05-03

Applicant: Apple Inc.

Inventor： Victoria C. Chan ,  Christina G. Gambacorta ,  Graham B. Myhre ,  Hyungryul Choi ,  Nan Zhu ,  Phil M. Hobson ,  William W. Sprague ,  Edward A. Valko ,  Qiong Huang ,  Branko Petljanski ,  Paul V. Johnson ,  Brandon E. Clarke ,  Elijah H. Kleeman

IPC: G02C7/08 ,  G02F1/133 ,  G06F1/16 ,  G02B6/42 ,  G02B7/02 ,  G02B7/09 ,  A61B3/032 ,  A61B3/00 ,  A61B3/036

Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have displays that produce images. Positioners may be used to move the displays relative to the eye positions of a user's eyes. An adjustable optical system may include tunable lenses such as tunable cylindrical liquid crystal lenses. The displays may be viewed through the lenses when the user's eyes are at the eye positions. A sensor may be incorporated into the head-mounted display to measure refractive errors in the user's eyes. The sensor may include waveguides and volume holograms, and a camera for gathering light that has reflected from the retinas of the user's eyes. Viewing comfort may be enhanced by adjusting display positions relative to the eye positions and/or by adjusting lens settings based on the content being presented on the display and/or measured refractive errors.

公开(公告)号：US20200057308A1

公开(公告)日：2020-02-20

申请号：US16609066

申请日：2018-06-05

Applicant: Apple Inc.

Inventor： Hyungryul Choi ,  Eric J Hansotte ,  Guolin Peng ,  Paul J. Gelsinger-Austin ,  Se Baek Oh

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/32 ,  G03H1/02

Abstract: An electronic device may have a reflective display with a pixel array that generates images. The reflective display may be illuminated by an illumination system. Light from the illumination system may be reflected by the pixel array as image light. The image light may be provided to a viewer using a waveguide with diffractive input and output couplers. The illumination system may have a waveguide. The illumination system may also have a light source such as one or more light-emitting diodes. Light from the light source may be coupled into the waveguide of the illumination system by a diffractive coupler such as volume hologram that serves as an input coupler. Light from the light source may be routed to the display to illuminate the display using the waveguide in the illumination system and a diffractive coupler such as a volume hologram that serves as an output coupler.

公开(公告)号：US20190324274A1

公开(公告)日：2019-10-24

申请号：US16352652

申请日：2019-03-13

Applicant: Apple Inc.

Inventor： David A. Kalinowski ,  Hyungryul Choi ,  Jae Hwang Lee

IPC: G02B27/01 ,  G02F1/01

Abstract: A head-mounted device may have a transparent display. The transparent display may be formed from a display unit that provides images to a user through an optical coupler. A user may view real-world objects through the optical coupler while control circuitry directs the transparent display to display computer-generated content over selected portions of the real-world objects. The head-mounted display may also include an adjustable opacity system. The adjustable opacity system may include an adjustable opacity layer such as a photochromic layer that overlaps the optical coupler and a light source that selectively exposes the adjustable opacity layer to ultraviolet light to control the opacity of the adjustable opacity layer. The adjustable opacity layer may block or dim light from the real-world objects to allow improved contrast when displaying computer-generated content over the real-world objects.