公开(公告)号：US11829528B2

公开(公告)日：2023-11-28

申请号：US17718083

申请日：2022-04-11

Applicant: Apple Inc.

Inventor： Kathrin Berkner-Cieslicki ,  Se Baek Oh ,  Scott M. DeLapp ,  Christopher F. Griffo ,  Bradley C. Steele ,  Ting Sun ,  Kenichi Saito ,  Noah D. Bedard

IPC: G06F3/01 ,  G02B27/00 ,  G02B27/01

CPC classification number: G06F3/013 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/014 ,  G02B2027/0138 ,  G02B2027/0174 ,  G02B2027/0187

Abstract: An eye tracking system for detecting position and movements of a user's eyes in a head-mounted display (HMD). The eye tracking system includes at least one eye tracking camera, an illumination source that emits infrared light towards the user's eyes, and diffraction gratings located at the eyepieces. The diffraction gratings redirect or reflect at least a portion of infrared light reflected off the user's eyes, while allowing visible light to pass. The cameras capture images of the user's eyes from the infrared light that is redirected or reflected by the diffraction gratings.

公开(公告)号：US20230101548A1

公开(公告)日：2023-03-30

申请号：US17934491

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Bosheng Zhang ,  Angelo M. Alaimo ,  Noah D. Bedard ,  Kathrin Berkner Cieslicki ,  Tongbo Chen ,  Paul M. Hubel ,  Farhan A. Baqai ,  Nicolas Pierre Bonnier ,  Bryan Dang

IPC: H04N5/235 ,  H04N5/225

Abstract: A light source module includes an array of illumination elements and an optional projecting lens. The light source module is configured to receive or generate a control signal for adjusting different ones of the illumination elements to control a light field emitted from the light source module. In some embodiments, the light source module is also configured to adjust the projecting lens responsive to objects in an illuminated scene and a field of view of an imaging device. A controller for a light source module may determine a light field pattern based on various parameters including a field of view of an imaging device, an illumination sensitivity model of the imaging device, depth, ambient illumination and reflectivity of objects, configured illumination priorities including ambient preservation, background illumination and direct/indirect lighting balance, and so forth.

公开(公告)号：US20220413636A1

公开(公告)日：2022-12-29

申请号：US17361144

申请日：2021-06-28

Applicant: Apple Inc.

Inventor： Jean Hsiang-Chun Lu ,  Bosheng Zhang ,  Kathrin Berkner Cieslicki ,  Manohar B. Srikanth ,  Noah D. Bedard ,  Ting Sun

IPC: G06F3/0354 ,  G06F3/042

Abstract: A device such as a stylus may have a color sensor. The color sensor may have a color sensing light detector having a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have a light emitter. The light emitter may have an adjustable light spectrum. The light spectrum may be adjusted during color sensing measurements using information such as ambient light color measurements made with a color ambient light sensor that has a plurality of photodetectors each of which measures light for a different respective color channel. An inertial measurement unit may be used to measure the angular orientation between the stylus and an external object during color measurements. Arrangements in which the light emitter is modulated during color sensing may also be used. Measurements from the stylus may be transmitted wirelessly to external equipment.

公开(公告)号：US20220236799A1

公开(公告)日：2022-07-28

申请号：US17718083

申请日：2022-04-11

Applicant: Apple Inc.

Inventor： Kathrin Berkner-Cieslicki ,  Se Baek Oh ,  Scott M. DeLapp ,  Christopher F. Griffo ,  Bradley C. Steele ,  Ting Sun ,  Kenichi Saito ,  Noah D. Bedard

IPC: G06F3/01 ,  G02B27/01 ,  G02B27/00

Abstract: An eye tracking system for detecting position and movements of a user's eyes in a head-mounted display (HMD). The eye tracking system includes at least one eye tracking camera, an illumination source that emits infrared light towards the user's eyes, and diffraction gratings located at the eyepieces. The diffraction gratings redirect or reflect at least a portion of infrared light reflected off the user's eyes, while allowing visible light to pass. The cameras capture images of the user's eyes from the infrared light that is redirected or reflected by the diffraction gratings.

公开(公告)号：US20220146820A1

公开(公告)日：2022-05-12

申请号：US17450128

申请日：2021-10-06

Applicant: Apple Inc.

Inventor： Noah D. Bedard ,  Branko Petljanski ,  Kathrin Berkner Cieslicki ,  Ricardo J. Motta

IPC: G02B27/00 ,  G06T19/00 ,  G06V20/20

Abstract: This disclosure describes a novel lens system having an entrance pupil at a location matching, or nearly matching, the eye's optical system entrance pupil. The described lens system is significantly thinner than a single-aperture lens with matched entrance pupil and is achieved by using an array of camera elements. Each camera element contains camera optics called “lenslets” and a sensor (e.g., an image or depth sensor), where a lenslet can include one or more lens elements (e.g., a compound lens). Individual camera elements can be arranged such that THEIR optical axes intersect at, or near, the eye's entrance pupil location. In addition, each camera element's field-of-view (FOV) corresponds to a small sector of a large FOV. The FOVs of adjacent camera elements can be non- or slightly-overlapping so that a wide-angle image can be formed by concatenation of the individual camera element images.

公开(公告)号：US11143865B1

公开(公告)日：2021-10-12

申请号：US16210909

申请日：2018-12-05

Applicant: Apple Inc.

Inventor： Noah D. Bedard ,  Branko Petljanski ,  Kathrin Berkner Cieslicki ,  Ricardo J. Motta

IPC: G02B27/00 ,  G06K9/00 ,  G06T19/00

Abstract: This disclosure describes a novel lens system having an entrance pupil at a location matching, or nearly matching, the eye's optical system entrance pupil. The described lens system is significantly thinner than a single-aperture lens with matched entrance pupil and is achieved by using an array of camera elements. Each camera element contains camera optics called “lenslets” and a sensor (e.g., an image or depth sensor), where a lenslet can include one or more lens elements (e.g., a compound lens). Individual camera elements can be arranged such that THEIR optical axes intersect at, or near, the eye's entrance pupil location. In addition, each camera element's field-of-view (FOV) corresponds to a small sector of a large FOV. The FOVs of adjacent camera elements can be non- or slightly-overlapping so that a wide-angle image can be formed by concatenation of the individual camera element images.