Abstract: The present disclosure provides a waveguide combiner. The waveguide combiner includes a substrate having a top surface. The waveguide combiner includes a plurality of structures disposed over the top surface. The waveguide combiner includes a cover glass disposed over the top surface. The cover glass including an absorption region and a transparent region. The absorption region includes an absorption material.

Abstract: Embodiments herein are generally directed to a waveguide display assembly and a near-eye display system incorporating the waveguide display assembly. In an embodiment, the waveguide display includes a light engine, a waveguide combiner, an input coupling grating, and one or more coupling gratings exposed to an ambient environment of the waveguide display assembly. The waveguide combiner extends across a user's eye at a wrap angle ?wrap(xy) relative to a waveguide plane, and the light engine is configured to project light toward the input coupling grating at a compensation angle ?Cl so as to increase the grating vector of the exposed gratings and reduce the angles and wavelengths at which light can be diffracted and coupled by the exposed grating into the waveguide combiner to the user's eye.

Abstract: A method and apparatus for a device including a first waveguide, the first waveguide having a first input coupler operable to receive a first color light and in-couple the first color light into the first waveguide, and a coating area adjacent to a grating of the first input coupler, the coating area operable to receive a second color light, the coating area having an anti-reflective coating with a transmission refractive index such that in operation the second color light is transmitted through the first waveguide to a second waveguide, the second waveguide below the first waveguide, the second waveguide having a second input coupler disposed below and aligned with the coating area, the second input coupler operable to receive the second color light and in-couple the second color light into the second waveguide.

Abstract: The present disclosure provides a waveguide combiner and methods thereof. The waveguide combiner includes a substrate having a top surface, a bottom surface, and an edge arrangement. The edge arrangement has at least a first angled surface. The first angled surface includes an angle of about 0.1° to about 90° relative to the top surface or the bottom surface of the substrate. A plurality of structures are disposed over the substrate. An anti-reflection composition is deposited on the first angled surface of the edge arrangement.

Abstract: A waveguide combiner including a first substrate, a second substrate, and a wavelength selective film, wherein the wavelength selective film is disposed between the first substrate and the second substrate, the wavelength selective film is operable to reflect a red light, refract and transmit a blue light, and refract and transmit a green light.

Abstract: A waveguide combiner is provided. The waveguide combiner includes a waveguide combiner substrate. The waveguide combiner provides a plurality of staircase structures disposed on the substrate. Each staircase structure comprises a plurality of staircase steps. Each staircase step has a staircase width that is the same. The plurality of staircase steps have a trim width from an initial staircase step to a final staircase step. The plurality of staircase steps includes a top step having a top width.

Abstract: Embodiments of the present disclosure include apparatus and methods for optical devices. In one embodiment, a method for forming an optical device generally includes disposing a first material device layer on a substrate, patterning a portion of the first material device layer to form a first plurality of device structures in the first material device layer, disposing a second material device layer on an un-patterned portion of the first device material layer, and patterning the second material device layer to form a second plurality of device structures disposed on the first material device layer.

Abstract: The present disclosure relates to augmented reality devices and related methods. In one or more embodiments, an augmented reality device includes a projection system and a waveguide. The projection system includes a projector and a prism. The projector projects an image along the projectors major axis. The prism refracts the image having a first spectrum, a second spectrum, and a third spectrum. The waveguide is disposed at a wrap angle from a plane formed from the major axis of the projector. The waveguide includes an input coupler and an output coupler. The input coupler includes input structures at an input period and an input orientation and the input coupler is configured to receive the spectrums at different corresponding input angles. The output coupler includes output structures at an output period and an output orientation and the output coupler out couples the respective spectrums at an about equal output angle.

Abstract: A waveguide is disclosed. The waveguide includes one or more gratings disposed over a substrate. The gratings include grating structures having a grating pitch. The waveguide includes a waveguide region disposed over the substrate between each grating and an edge of the substrate. The waveguide region includes auxiliary structures with an auxiliary pitch less than the grating pitch.

Abstract: Certain aspects of the present disclosure include an optical device. The optical device generally includes an in-coupler (IC) configured to receive light from a projector, where the IC includes at least one grating line offset (GLO) associated with one or more phase deviations of the light from the projector. The device also includes a waveguide and an output coupler (OC), where the IC is configured to redirect the light from the projector to the OC through the waveguide.

Abstract: Embodiments of the disclosure provided herein include waveguide combiners. More specifically, embodiments described herein provide for waveguide combiners with a waveguide layer and a coating having a tapered portion disposed thereover. The waveguide includes one or more gratings, the one or more gratings including a plurality of grating structures disposed over a waveguide substrate, wherein the grating structures include a waveguide material, and the plurality of grating structures include exterior grating structures at outer edges of the one or more gratings. A waveguide layer is disposed over the waveguide substrate between the exterior grating structures and an edge of the waveguide substrate, the waveguide layer including the waveguide material, and a coating disposed over the waveguide layer, the coating having a tapered portion that is tapered from at least one of the exterior grating structures to a planar portion of the coating.

Abstract: Single-sheet waveguide combiners having increased field-of-view for multiple colors by enabling separate action on different colors without creating spurious paths are provided. A waveguide includes a first region including an in-coupler (IC) grating for a first color; a second region including an IC grating for a second color and a third color; a third region including an out-coupler (OC) grating for the first color and an eye-pupil-expander (EPE) grating for the second color and the third color; a fourth region including an EPE grating for the first color; and a fifth region including an OC grating for the second color and the third color and an EPE grating for the first color, wherein the fifth region at least partially overlaps with the third region.

Abstract: A multi-mode control module for selectively controlling a flow of one or more fluids through a thermal management system is disclosed. The control module includes a fluid valve system in fluid communication with one or more fluid manifolds. The fluid valve system includes at least one fluid valve assembly disposed in a housing defining a plurality of flow paths. Each fluid valve assembly includes a plurality of flow control members in stacked relationship moveably disposed and selectively positionable within the housing to achieve various operating modes of the control module, and thereby, the thermal management system.

Abstract: In certain examples, aspects are directed to using a first beamsplitter and a second beamsplitter arranged with respect to one another with the first beamsplitter splitting incident light into multiple light beams, along a particular polarization basis, and with the second beamsplitter recombining and interfering with the multiple light beams to provide a recombined light beam characterized as having at least one of the following attributes: mapping between a polarization state and different wavelengths of the incident light; and a polarization tuning of the incident light.

Abstract: The present invention provides a novel and efficient process of preparing a highly organized 3D array of particles by stacking multiple 2D arrays of the particles. The 3D array of particles so prepared is used in fabrication of sensors, such as molecular imprinted photonic (MIP) crystal sensor. The sensor has a 3D array of voids each having a void internal wall. The void internal walls have cavities each having a cavity internal wall made from a material containing the non-metallic element. A binding of the analytes to the cavities induces a detectable variation of the optical property of the 3D array of voids. The invention exhibits numerous technical merits such as high sensitivity, high specificity, fast detection, ease of operation, low power consumption, zero chemical release, and low operation cost, among others.