Facebook Technologies, LLC

Asml Netherlands B.v.

Meta Platforms Technologies, LLC

Fei Liu

Andrew Matthew Bardagjy

Joseph Duggan

Mark Timothy Sullivan

Simon Morris Shand Weiss

Cina Hazegh

Igor Vladimirovich Fomenkov

Alexander Igorevich Ershov

Martinus Hendrikus Antonius Leenders

Johannes Henricus Wilhelmus Jacobs

Johannes Hubertus Josephina Moors

Yen-Wen Lu

Jan Steven Christiaan Westerlaken

William S Wong

Antonius Theodorus Wilhelmus Kempen

Been-Der Chen

Dong Yang

Andrew David LaForge

Yue Ma

William Peter Van Drent

Klaus Martin Hummler

Alexey Sergeevich Kuznetsov

Peter Gerardus Jonkers

Hendrikus Alphonsus Ludovicus Van Dijck

Rui Miguel Duarte Rodrigues Nunes

Parham Yaghoobi

Jeroen Hubert Rommers

Hubertus Johannes Van De Wiel

Elena Nedanovska

Celal Korkmaz

Alexander Downn Kim

Matthew Christopher Appleby

Qiushi Zhu

Fernando Brizuela

Rob Carlo Wieggers

Umesh Prasad Gomes

Ying Geng

Yusufu Njoni Bamaxam Sulai

Zhisheng Yun

Lidu Huang

Manoj Bikumandla

Daozhi Wang

Shaomin Xiong

Yizhi Xiong

Chao Han

Bradley James Tallon

Dongmin Yang

Yanming Zhao

Michael Andrew Brookmire

Zhaochun Yu

According to examples, an optical lens assembly for head-mount display (HMD) devices may include an optical lens configuration with a first optical element and a second optical element. The first optical element and the second optical element may be affixed together along a peripheral edge to form a gap between the two optical elements and may compensate chromatic dispersion characteristics. The optical lens configuration may also include a reflective polarizer layer, a quarter wave layer, and a semi-transparent mirror provided on selected surfaces of the optical elements. In some examples, the gap may be filled with air or an inert gas.

Reflective hollow singlet folded optical lens structure

One embodiment of the present invention sets forth a technique for intelligently accessing one or more different hardware-based mechanisms for cropping out, blurring or blocking private content in a live preview image generated for the camera and in media recorded by the camera. The technique incudes receiving input regarding a plurality of objects to be concealed in media captured by an imaging device and identifying at least one of the plurality of objects in a field of view of the imaging device. Further, the technique includes modifying the at least one of the plurality of objects in a live preview image or media captured by the imaging device using one or more hardware-based actuators, where the modifying the at least one of the plurality of objects causes the one of the plurality of objects to be concealed.

Hardware-based protection of private content captured by a camera device

Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

Prolonging optical element lifetime in an EUV lithography system

A depth camera assembly (DCA) for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates the local area with a structured light pattern. The structured light generator includes a programmable diffractive optical element (PDOE) that generates diffracted scanning beams using optical beams. The PDOE functions as a dynamic diffraction grating that dynamically adjusts diffraction of the optical beams to generate the diffracted scanning beams of different patterns. The diffracted scanning beams are projected as the structured light pattern into the local area, wherein the structured light pattern is dynamically adjustable based on the PDOE. The imaging device captures image(s) of at least a portion of the structured light pattern reflected from object(s) in the local area. The controller determines depth information for the object(s) based on the captured image(s).

Camera assembly with programmable diffractive optical element for depth sensing

A depth camera assembly for depth sensing of a local area includes a structured light generator, an imaging device, and a controller. The structured light generator illuminates a local area with structured light and includes an illumination source, a mounting element, and a diffractive optical element (DOE) mounted on the mounting element. The mounting element can have a plurality of adjustable positions relative to the illumination source based on emission instructions from the controller. The DOE generates, using light emitted from the illumination source, diffracted scanning beams that are projected as the structured light into the local area. A pattern of the structured light is dynamically adjustable and unique for each adjustable position of the mounting element. The imaging device captures image(s) of the structured light reflected from object(s) in the local area. The controller determines depth information for the object(s) based in part on the captured image(s).

Shifting diffractive optical element for adjustable depth sensing resolution

Degradation of the reflectivity of one or more reflective optical elements in a system (SO) for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber () containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

An imaging device for imaging of a local area surrounding the imaging device. The imaging device includes a lens assembly, a filtering element and a detector. The lens assembly is configured to receive light from a local area surrounding the imaging device and to direct at least a portion of the received light to the detector. The filtering element is placed in the imaging device within the lens assembly such that light is incident at a surface of the filtering element within a range of angles determined by a design range of angles at which the filtering element is designed to filter light. The detector is configured to capture image(s) of the local area including the filtered light. The imaging device can be integrated into a depth camera assembly for determining depth information of object(s) in the local area based on the captured image(s).

Imaging device based on lens assembly with embedded filter

A head-mounted display (HMD) system includes a projector system configured to emit a structured light (SL) pattern onto one or more objects in a local area, the projected SL pattern comprises at least a first SL pattern having a first field of view (FOV) corresponding to a first tileable boundary, and a second SL pattern having a second FOV corresponding to a second tileable boundary. Each of the projected SL patterns contains fiducials at predetermined locations within the SL pattern. An imaging device captures images of the local area including at least portions of the first SL pattern or the second SL patterns. The detected locations of the fiducials in the captured images is used to determine the boundary locations of the first and second SL patterns. Depth information of the local area is generated based upon the determined locations of the first and second SL patterns.

Tileable structured light projection system

An imaging device includes a focusing element, an image sensor, and an actuator configured to translate at least one of the image sensor and the focusing element relative to each other. A controller of the imaging device is configured to use the image sensor to capture an image frame including at least a portion of the image of the object, determine a current position of the image of the object in the image frame, determine a deviation of the current position from a target position of the image of the object in the image frame, and operate the actuator to reduce the deviation. In this manner, the image of the object may be brought to a center of a captured image frame. Such an imaging device may be used as a self-aligning eye-tracking camera in a near-eye display.

Imaging device with field-of-view shift control

An optical device includes an optical element. The optical element includes a first surface configured to receive light in a first direction and a second surface that is non-parallel to the first surface. The second surface is configured to transmit a first portion of the light in a second direction that is different from the first direction and internally reflect a second portion of the light that is distinct from the first portion of the light. The optical element further includes a third surface configured to receive the second portion of the light from the second surface and reduce internal reflection of the second portion of the light by the third surface. Also disclosed is a method of steering light by the optical device.

Infrared optical element for proximity sensor system

A depth measurement assembly (DMA) measures depth information of an object in a local area. The DMA includes structured light projector, a depth camera assembly, and a controller. The structured light projector projects structured light patterns into the local area. The structured light projector includes a diffractive optical unit that includes diffractive optical elements (DOEs) and selects a DOE. The selected DOE is illuminated by light from a light source and converts the light into a structured light pattern. In some embodiment, the diffractive optical units selects multiple DOEs associated with multiple structured light patterns. The structured light pattern is projected into the local area by a projection assembly of the structured light projector and illuminates the object. The depth camera assembly captures images of the object. The controller uses the captured images to determine depth information of the object.

Depth measurement using scanning diffractive optical elements

Growing community of inventors

San Jose, CA, United States of America

Fei Liu