公开(公告)号：US10817018B1

公开(公告)日：2020-10-27

申请号：US16398093

申请日：2019-04-29

Applicant: Apple Inc.

Inventor： Guocheng Shao ,  Dong Zheng ,  Christopher M. Dodson ,  Kenneth J. Vampola ,  Koorosh Aflatooni

IPC: G06F1/16 ,  G09G3/34 ,  H04N5/378 ,  H01L27/146

Abstract: An electronic device may have a display with an array of pixels that display images for a user. The electronic device may have an ambient light sensor for gathering ambient light information. A subset of the pixels in the array of pixels may overlap the ambient light sensor so that ambient light passing through the subset of pixels may be measured. Each pixel may have an emission enable transistor coupled in series with a light-emitting diode. Control circuitry in the electronic device may disable the subset of pixels to reduce stray light during ambient light measurements while enabling remaining pixels in the array of pixels to display an image. Ambient light sensor circuitry may gather ambient light sensor measurements over one or more periods by using transfer transistors to transfer change from the photodetectors to charge storage capacitors formed from floating diffusions in a common substrate.

公开(公告)号：US20220090964A1

公开(公告)日：2022-03-24

申请号：US17025535

申请日：2020-09-18

Applicant: Apple Inc.

Inventor： Sixian You ,  Sheng Liu ,  Christopher M. Dodson ,  Guocheng Shao ,  Mahdi Nezamabadi

IPC: G01J3/02 ,  G01J3/18

Abstract: An electronic device such as a portable electronic device may include a single-shot alignment-free spectrometer with no moving parts. The spectrometer may include a diffractive member, such as a grating, an aperture, and an image sensor that generates data in response to incident light. The diffractive member may diffract the incident light based on its wavelength and angle of incidence, and the aperture may further encode the light. The data generated by the image sensor may be used by control circuitry in combination with correlations between spectrometer measurements and known light profiles to determine the wavelength and angle of incidence of the light. These correlations may be determined using a deep neural network. Control circuitry may adjust one or more settings of the electronic device based on the wavelength and angle of incidence, or may use the wavelength and angle of incidence to determine information regarding an external object.

公开(公告)号：US20210303851A1

公开(公告)日：2021-09-30

申请号：US17171864

申请日：2021-02-09

Applicant: Apple Inc.

Inventor： Christopher M. Dodson ,  Jonathan B. Pfeiffer

IPC: G06K9/00 ,  G02B27/01 ,  G03H1/02 ,  F21V8/00 ,  H04N5/33

Abstract: A head-mounted electronic device may include a display with an optical combiner. The combiner may include a waveguide with first and second output couplers. The first output coupler may couple a first portion of image light at visible wavelengths out of the waveguide and towards an eye box. The second output coupler may couple a second portion of the image light at near-infrared wavelengths out of the waveguide and towards the surrounding environment. The second portion of the image light may include an authentication code that is used by a secondary device to authenticate the head-mounted device and/or may include a pattern that serves to prevent camera equipment in the surrounding environment from capturing accurate facial recognition information from a user while wearing the head-mounted device.

公开(公告)号：US20210004053A1

公开(公告)日：2021-01-07

申请号：US17030220

申请日：2020-09-23

Applicant: Apple Inc.

Inventor： Guocheng Shao ,  Dong Zheng ,  Christopher M. Dodson ,  Kenneth J. Vampola ,  Koorosh Aflatooni

IPC: G06F1/16 ,  G09G3/34 ,  H04N5/378

Abstract: An electronic device may have a display with an array of pixels that display images for a user. The electronic device may have an ambient light sensor for gathering ambient light information. A subset of the pixels in the array of pixels may overlap the ambient light sensor so that ambient light passing through the subset of pixels may be measured. Each pixel may have an emission enable transistor coupled in series with a light-emitting diode. Control circuitry in the electronic device may disable the subset of pixels to reduce stray light during ambient light measurements while enabling remaining pixels in the array of pixels to display an image. Ambient light sensor circuitry may gather ambient light sensor measurements over one or more periods by using transfer transistors to transfer change from the photodetectors to charge storage capacitors formed from floating diffusions in a common substrate.

公开(公告)号：US20190096364A1

公开(公告)日：2019-03-28

申请号：US15713308

申请日：2017-09-22

Applicant: Apple Inc.

Inventor： Ove Lyngnes ,  Tingjun Xu ,  Avery P. Yuen ,  Christopher M. Dodson ,  Tianbo Sun ,  Xianwei Zhao ,  Xingxing Cai ,  Sunggu Kang

IPC: G09G5/10 ,  G02B27/30 ,  G02B5/02

CPC classification number: G09G5/10 ,  G02B5/0221 ,  G02B5/0242 ,  G02B5/045 ,  G02B5/122 ,  G02B5/208 ,  G02B5/22 ,  G02B5/28 ,  G02B27/30 ,  G09G2320/0626 ,  G09G2360/144

Abstract: An electronic device may be provided with a display. The display may have an array of pixels that form an active area and may have an inactive area that runs along an edge of the active area. An opaque layer may be formed on an inner surface of a display cover layer in the inactive area of the display or may be formed on another transparent layer in the electronic device. An ambient light sensor window may be formed from the opening and may be aligned with color ambient light sensor. The ambient light sensor may have an integrated circuit with photodetectors. Ambient light passing through the ambient light sensor window may be diffused by a light diffuser having one or more light-diffusing layers. Diffused ambient light may be collimated using a light collimator having one or more light-collimating layers such as layers with inwardly facing protrusions.