Magic Leap, Inc.

Silicon Light Machines Corporation

Cypress Semiconductor Corporation

Tokyo Electron Limited

Therma-wave, Inc.

Silicon Light Machines Corportion

Clinton Carlisle

Jahja I Trisnadi

Vaibhav Mathur

Hui-Chuan Cheng

Chulwoo Oh

Michael Anthony Klug

David Manly

Timothy Mark Dalrymple

Kevin R Curtis

Lionel Ernest Edwin

Hyunsun Chung

Jason A Schaefer

Kevin Messer

Charles B Roxlo

Joshua Naaman Haddock

Pierre St Hilaire

Andrew Ian Russell

Fred E Stanke

Edric Tong

Xiaoyang Zhang

Elliot Burke

James M Cahill

Philip Premysler

Douglas E Ruth

David A Lehoty

William J Molteni, Jr

Yansun Xu

Andrew C Duenner

Hung The Pham

Brett Alan Spurlock

Michael Weber

Jonathan Alexander Rolon

Nicole Elizabeth Samec

Robert J Lang

Ivan Li Chuen Yeoh

Barak Freedman

Robert Blake Taylor

Alexander P Payne

Nastasja U Robaina

Steven Sanders

Adam Charles Carlson

Roman Patscheider

David Tinch

Michael Robert Johnson

Jason Donald Mareno

Christopher Laning

Howard Russell Cohen

Ted Diehl

Bach Nguyen

Arno Leon Konings

Charles Robert Schabacker

Christopher Peter Couste

Ivan Li-Chuen Yeoh

David T Amm

Adam Eales Norton

James A Hunter

Bradley Jay Sissom

Akira Tomita

Evgeni Poliakov

Ke-Cai Zeng

Marc D Hartranft

Douglas Webb

Brian Todoroff

David A LeHoty

Michael Weber-Grabau

Kais Almarzouk

Steve Sanders

Hung V Pham

Syed Tariq Shafaat

Robert W Corrigan

Edward D Huber

Wei Chen Lin

Jahia Trisnadi

Vlastimil Cejna

Anthony A Abdilla

David Lehoty

Kevin Richard Curtis

William Molteni

Head-mounted virtual and augmented reality display systems include a light projector with one or more emissive micro-displays having a first resolution and a pixel pitch. The projector outputs light forming frames of virtual content having at least a portion associated with a second resolution greater than the first resolution. The projector outputs light forming a first subframe of the rendered frame at the first resolution, and parts of the projector are shifted using actuators, such that physical positions of light output for individual pixels occupy gaps between the old locations of light output for individual pixels. The projector then outputs light forming a second subframe of the rendered frame. The first and second subframes are outputted within the flicker fusion threshold. Advantageously, an emissive micro-display (e.g., micro-LED display) having a low resolution can form a frame having a higher resolution by using the same light emitters to function as multiple pixels of that frame.

Variable pixel density display system with mechanically actuated image projector

An example head-mounted display device includes a light projector, an optical assembly arranged to direct light from a light projector to a user, and an actuator module. The optical assembly includes a variable focus lens assembly including a rigid refractive component, a shaper ring defining an aperture, and a flexible lens membrane between the shaper ring and the rigid refractive component and covering the aperture. The refractive component, the shaper ring, and the lens membrane are arranged along an axis. The refractive component and the lens membrane define a chamber containing a volume of fluid. The actuator module is configured to adjust an optical power of the variable focus lens by moving the shaper ring relative to the refractive component along the axis, such that a curvature of the lens membrane in the aperture is modified.

Variable focus assemblies

A wearable display system includes one or more nanowire LED micro-displays. The nanowire micro-LED displays may be monochrome or full-color. The nanowire LEDs forming the arrays may have an advantageously narrow angular emission profile and high light output. Where a plurality of nanowire LED micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, for example, an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.

Wearable display systems with nanowire LED micro-displays

A head-mounted apparatus include an eyepiece that include a variable dimming assembly and a frame mounting the eyepiece so that a user side of the eyepiece faces a towards a user and a world side of the eyepiece opposite the first side faces away from the user. The dynamic dimming assembly selectively modulates an intensity of light transmitted parallel to an optical axis from the world side to the user side during operation. The dynamic dimming assembly includes a variable birefringence cell having multiple pixels each having an independently variable birefringence, a first linear polarizer arranged on the user side of the variable birefringence cell, the first linear polarizer being configured to transmit light propagating parallel to the optical axis linearly polarized along a pass axis of the first linear polarizer orthogonal to the optical axis, a quarter wave plate arranged between the variable birefringence cell and the first linear polarizer, a fast axis of the quarter wave plate being arranged relative to the pass axis of the first linear polarizer to transform linearly polarized light transmitted by the first linear polarizer into circularly polarized light, and a second linear polarizer on the world side of the variable birefringence cell.

Ghost image mitigation in see-through displays with pixel arrays

An optical device may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

Methods, devices, and systems for illuminating spatial light modulators

A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.

Angularly selective attenuation of light transmission artifacts in wearable displays

In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively. The at least one processor is configured to cause the first and second adaptive lens assemblies to synchronously switch between different states in a manner such that the first and second adaptive lens assemblies impart a substantially constant net optical power to ambient light from the environment passing therethrough.

Augmented reality display having multi-element adaptive lens for changing depth planes

Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.

Display system with spatial light modulator illumination for divided pupils

Disclosed are dimming assemblies and display systems for reducing artifacts produced by optically-transmissive displays. A system may include a substrate upon which a plurality of electronic components are disposed. The electronic components may include a plurality of pixels, a plurality of conductors, and a plurality of circuit modules. The plurality of pixels may be arranged in a two-dimensional array, with each pixel having a two-dimensional geometry corresponding to a shape with at least one curved side. The plurality of conductors may be arranged adjacent to the plurality of pixels. The system may also include control circuitry electrically coupled to the plurality of conductors. The control circuitry may be configured to apply electrical signals to the plurality of circuit modules by way of the plurality of conductors.

Geometries for mitigating artifacts in see-through pixel arrays

A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side, wherein during use a user positioned on the user side views displayed images delivered by the system via the eyepiece stack which augment the user's view of the user's environment. The wearable display system also includes an angularly selective film arranged on the world side of the of the eyepiece stack. The angularly selective film includes a polarization adjusting film arranged between pair of linear polarizers. The linear polarizers and polarization adjusting film significantly reduces transmission of visible light incident on the angularly selective film at large angles of incidence without significantly reducing transmission of light incident on the angularly selective film at small angles of incidence.

Attenuation of light transmission artifacts in wearable displays

Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include monitoring eye orientations of a user of a display system based on detected sensor information. A fixation point is determined based on the eye orientations, the fixation point representing a three-dimensional location with respect to a field of view. Location information of virtual objects to present is obtained, with the location information indicating three-dimensional positions of the virtual objects. Resolutions of at least one virtual object is adjusted based on a proximity of the at least one virtual object to the fixation point. The virtual objects are presented to a user by display system with the at least one virtual object being rendered according to the adjusted resolution.

Depth based foveated rendering for display systems

A method for providing a composite field of view includes providing two or more input light beams to a scanning mirror and scanning the two or more input light beams using the scanning mirror to provide a plurality of reflected light beams at different angles. Each of the plurality of reflected light beams is configured to provide an image in a respective field of view. The method also includes receiving the plurality of reflected light beams in a waveguide and projecting a plurality of output light beams from the waveguide to form a projected image in the composite field of view. The composite field of view is larger than the respective field of view provided by each of the two or more input light beams.

Method and system for large field of view display with scanning reflector

An eyepiece for projecting an image light field to an eye of a viewer for forming an image of virtual content includes a waveguide, a light source configured to deliver a light beam to be incident on the waveguide, a controller coupled to the light source and configured to modulate an intensity of the light beam in a plurality of time slots, a dynamic input coupling grating (ICG) configured to, for each time slot, diffract a respective portion of the light beam into the waveguide at a respective total internal reflection (TIR) angle corresponding to a respective field angle, and an outcoupling diffractive optical element (DOE) configured to diffract each respective portion of the light beam out of the waveguide toward the eye at the respective field angle, thereby projecting the light field to the eye of the viewer.

Dynamic incoupling gratings in imaging systems

Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

Spatially-resolved dynamic dimming for augmented reality device

Variable pixel density display system with mechanically-actuated image projector

Growing community of inventors

Palo Alto, CA, United States of America

Clinton Carlisle