Abstract: An OSC material may include a grating structure for use in waveguide applications. A method of patterning the OSC material to create the grating structure may include forming a hard mask over the OSC layer and etching the OSC layer through an opening in the hard mask. Furthermore, an improved design of a grating light valve device may include a reflective backplane, an array of micro-ribbons disposed on the reflective backplane, and a metasurface structure positioned beneath the array of micro-ribbons. A multiple stage process may include generating a broad spectrum of light from a laser architecture, filtering and multiplexing the wavelengths of light using an image optimization module, and incoherently averaging the speckle patterns across the various wavelengths using a spatial light modulator architecture.

Abstract: An example device includes a wearable structure configured to couple to a user's body. The wearable structure includes a light emitter coupled to a plurality of fiber optic components and configured to transmit a light output and an optical switch coupled to the plurality of fiber optic components. The wearable structure further includes a photo sensor coupled to the optical switch. The photo sensor is configured to detect a reflected portion of the light output from the light emitter and output a corresponding photo sensor signal. The wearable structure also includes control circuitry coupled to the photo sensor and configured to determine a curvature of a respective fiber optic component based on analysis of the corresponding photo sensor signal, and determine a pose of the user based on the curvature of the respective fiber optic component.

Abstract: Various embodiments are directed to a device for detecting fluid particle characteristics comprising: a fluid composition sensor comprising: an illumination source configured to emit a light beam along a beam axis such that at least a portion of the light beam engages a collection media and illuminates particles disposed within a collection media; an imaging device configured to capture an image of the particles disposed within the collection media; and a light shield comprising: an internal shield portion enclosed within an inner surface of a shield wall; and one or more baffle elements disposed within the internal shield portion and configured to reflect at least a divergent portion of the light beam within the internal shield portion; wherein the light shield extends between the illumination source and the imaging device such that a portion of the light beam emitted along the beam axis passes through the internal shield portion.

Abstract: Various embodiments are directed to a device for detecting fluid particle characteristics comprising: a fluid composition sensor comprising: an illumination source configured to emit a light beam along a beam axis such that at least a portion of the light beam engages a collection media and illuminates particles disposed within a collection media; an imaging device configured to capture an image of the particles disposed within the collection media; and a light shield comprising: an internal shield portion enclosed within an inner surface of a shield wall; and one or more baffle elements disposed within the internal shield portion and configured to reflect at least a divergent portion of the light beam within the internal shield portion; wherein the light shield extends between the illumination source and the imaging device such that a portion of the light beam emitted along the beam axis passes through the internal shield portion.