Abstract: The present disclosure describes near-eye display systems including an array of projectors and a one-dimensional exit pupil expander. The array of projectors can be arranged along a first dimension and can output image light towards an input coupler within a waveguide that provides one-dimensional exit pupil expansion. In some implementations, arrays of monochromatic projectors are implemented and arranged in offset columns. The input coupler in-couples the image light from the array of projectors into a TIR path within the waveguide. Different optical elements, including diffractive and reflective optics, may be implemented as the input coupler. The image light travels within the waveguide until it interacts with an output coupler. Upon interaction with the output coupler, the image light is expanded in a second dimension transverse to the first dimension and is coupled out of the waveguide.

Abstract: According to at least one implementation, a method includes identifying a gaze associated with a user of a device and identifying a first state of a gesture from the user. The method further includes causing display of a cursor over a first portion of content on a display of the device based on the gaze and the first state of the gesture. The method also includes identifying a second state of the gesture from the user and causing display of the cursor over a second portion of the content on the display based on the gaze and the second state of the gesture, the second portion being different than the first portion.

Abstract: Optical filters are disclosed for reducing leakage of light used for virtual images from a mixed-reality head-mounted display (HMD) device having a waveguide combiner. The optical filters include spectral-sensitive wideband and narrowband reflectors comprising triple-notch filters or single-notch filters that reflect forward-propagating virtual image light back to a user's eyes. The optical filters further include light deflectors having planar and curved configurations comprising volume Bragg gratings (VBGs), liquid crystal Bragg gratings, and partially-reflective mirror arrays. A light deflector steers forward-propagating virtual image light to impart an angular change in propagation direction. The steered light is absorbed and/or diffused by structures in the HMD device and/or deflected to prevent the outward appearance of virtual image overlay with the HMD device user's eyes.

Abstract: According to at least one implementation, a method includes identifying a first state for a gesture from a user of a device and determining a first location associated with the gesture. The method further includes determining a second location on an interface displayed by the device based on the first location and causing display of an identifier in the second location on the interface.

Abstract: According to at least one implementation, a method includes identifying a screen state associated with a first device and determining whether the screen state associated with the first device satisfies at least one criterion. In response to determining that the screen state associated with the first device satisfies the at least one criterion, the method further includes identifying touch input for a second device at the first device. In response to determining that the screen state associated with the first device fails to satisfy the at least one criterion, the method further includes identifying touch input for the first device at the first device.

Abstract: This document relates to head mounted display devices. One example can include a housing configured to be positioned relative to a head and eye of a user and a transparent visual assembly positioned by the housing in front of the user's eye and comprising multiple eye tracking illuminators distributed across the transparent visual assembly and configured to emit non-visible light and multiple eye tracking detectors distributed across the transparent visual assembly and configured to detect the non-visible light reflected back from the eye of the user.

Abstract: According to at least one implementation, a method includes identifying an orientation of a first device relative to a second device and determining whether the orientation satisfies at least one criterion. In response to the orientation satisfying the at least one criterion, the method further includes receiving touch input for the second device from the first device. In response to the orientation failing to satisfy the at least one criterion, the method also includes receiving touch input for the first device from the first device.

Abstract: This document relates to head mounted display devices. One example can include a housing configured to be positioned relative to a head and eye of a user and a transparent visual assembly positioned by the housing in front of the user's eye and comprising multiple eye tracking illuminators distributed across the transparent visual assembly and configured to emit non-visible light and multiple eye tracking detectors distributed across the transparent visual assembly and configured to detect the non-visible light reflected back from the eye of the user.

Abstract: Slanted surface relief gratings for use in an optical display system in an HMD device are replicated in a manufacturing process that utilizes non-contact optical proximity recording into a specialized photo-sensitive resin that is disposed over a waveguide substrate. The recording process comprises selective resin exposure to ultraviolet light through a mask to spatially record grating structures by interferential exposure and polymerization. Subsequent resin development evacuates unexposed resin down to the waveguide substrate to remove flat surfaces, referred to as a bias layer, that remain in the grating trenches after exposure. The resin development reduces Fresnel reflections that could otherwise be induced at the media interface between the bias layer and the waveguide substrate. Fresnel reflections may cause a loss of diffraction efficiency and thereby reduce the field of view that may be guided by the SRGs in the optical display system.

Abstract: One disclosed example provides a near-eye display device. The near-eye display device comprises an eye tracking system configured to determine a position of an eye of a user relative to the near-eye display device, and a waveguide including at least an input coupler and an output coupler, the output coupler including a plurality of zones, each zone activatable via a dynamically controllable output coupling element of the zone. The near-eye display device further comprises an image source configured to output image light to the input coupler, and a controller configured to selectively activate one or more zones of the output coupler based at least on the position of the eye.

Abstract: A display device may receive eye tracking data. A display device may detect an eye gaze intent state based on the eye tracking data. A display device may receive an input device signal of an input device. A display device may determine to switch from a first input modality to a second input modality based on at least one of the eye gaze intent state or the input device signal. A display device may move a position indicator on a display of the display device using at least one of the first input modality or the second input modality.

Abstract: One disclosed example provides a near-eye display device. The near-eye display device comprises an eye tracking system configured to determine a position of an eye of a user relative to the near-eye display device, and a waveguide including at least an input coupler and an output coupler, the output coupler including a plurality of zones, each zone activatable via a dynamically controllable output coupling element of the zone. The near-eye display device further comprises an image source configured to output image light to the input coupler, and a controller configured to selectively activate one or more zones of the output coupler based at least on the position of the eye.

Abstract: Examples are disclosed that relate to compact optical systems comprising SLMs. One example provides a projection system comprising an illumination stage including a light emitting diode (LED) array. The LED array comprises a plurality of red LEDs, a plurality of green LEDs, and a plurality of blue LEDs. The illumination stage further comprises an illumination stage optical system configured to control an angular extent of light emitted by the LED array and homogenize the light emitted by the LED array. The projection system further comprises an image forming stage configured to form an image from light output by the illumination stage, the image forming stage comprising a spatial light modulator (SLM) configured to spatially modulate the light output by the illumination stage to form an image, and one or more projection optics configured to project the image formed by the spatial light modulator.

Abstract: A display engine adapted for use in a head-mounted display (HMD) device includes a reflective liquid crystal on silicon (LCoS) spatial light modulator (SLM) that is illuminated using a backlight illumination module and a pair of optical prisms providing a total internal reflection (TIR) function. In an illustrative mixed-reality embodiment, the TIR prism pair guides light to the LCoS SLM from the backlight illumination module and projects virtual images reflected from the LCoS SLM, through projection optics, to a diffractive waveguide combiner for viewing by an HMD user.

Abstract: Optical filters are disclosed for reducing leakage of light used for virtual images from a mixed-reality head-mounted display (HMD) device having a waveguide combiner. The optical filters include spectral-sensitive wideband and narrowband reflectors comprising triple-notch filters or single-notch filters that reflect forward-propagating virtual image light back to a user's eyes. The optical filters further include light deflectors having planar and curved configurations comprising volume Bragg gratings (VBGs), liquid crystal Bragg gratings, and partially-reflective mirror arrays. A light deflector steers forward-propagating virtual image light to impart an angular change in propagation direction. The steered light is absorbed and/or diffused by structures in the HMD device and/or deflected to prevent the outward appearance of virtual image overlay with the HMD device user's eyes.

Abstract: A device includes a housing, a camera coupled to the housing, and a controller. The camera includes a lens, a shutter coaxial with the lens, and an image sensor coaxial with the lens and the shutter, where the image sensor is configured to receive light that passes through the shutter and the lens. The controller detects an amount of light received by the image sensor and controls the shutter by dimming the shutter based on the amount of light detected. In some examples, the shutter is an electrochromic shutter.

Abstract: This document relates to an optical device that uses adaptive optics as part of an optical system. The adaptive optics can be used to correct light rays that correspond to a portion of an eye box based on information received from an eye-tracking unit, and can also correct for aberrations in the optics in the optical device. The adaptive optics include corrective elements that can be modified using modifying elements to correct the angle of light rays, such that rays associated with a specific pupil position and gaze direction of a user's eye can be made parallel and ensure a high quality image is viewed by the user.

Abstract: Examples are disclosed that relate to display devices having a common light path region. One example provides a display device comprising a light source configured to emit illumination light along an illumination path, and a spatial light modulator configured to modulate the illumination light and emit the modulated illumination light as image light along an imaging path, wherein at least a portion of the illumination path and at least a portion of the imaging path extend through a common light path region. The display device further comprises one or more optical elements positioned within the common light path region, at least one optical element being configured to guide the illumination light as the illumination light travels through the common light path region toward the spatial light modulator, and shape the image light as the image light travels through the common light path region.

Abstract: The present disclosure describes near-eye display systems including an array of projectors and a one-dimensional exit pupil expander. The array of projectors can be arranged along a first dimension and can output image light towards an input coupler within a waveguide that provides one-dimensional exit pupil expansion. In some implementations, arrays of monochromatic projectors are implemented and arranged in offset columns. The input coupler in-couples the image light from the array of projectors into a TIR path within the waveguide. Different optical elements, including diffractive and reflective optics, may be implemented as the input coupler. The image light travels within the waveguide until it interacts with an output coupler. Upon interaction with the output coupler, the image light is expanded in a second dimension transverse to the first dimension and is coupled out of the waveguide.

Abstract: Examples are disclosed that relate to using an array of hot mirrors in an eye-imaging system. One example provides a head-mounted display system, comprising a frame, an eye-imaging camera supported on the frame, a switchable hot mirror array comprising a plurality of switchable hot mirrors configured to direct light reflecting from an eye toward the eye-imaging camera, and a controller configured to control switching of a reflectivity of each of the plurality of switchable hot mirrors.