Abstract: A wavelength converter for LiDAR systems, such as automotive LiDAR, is disclosed. Implementation of the wavelength converter in LiDAR systems makes possible generation and modulation of laser light in the silicon response region, conversion of the laser light to an eye-safe wavelength for emission and reflection from a target, and efficient conversion of the wavelength of the laser light to the silicon response region. The wavelength converter may implement a single-loop counter-propagating wavelength conversion scheme which provides both up-conversion and down-conversion of the signal within the same loop. The wavelength conversion design also has the potential for vehicle-to-vehicle (V2V) communication to enable a combined LiDAR and V2V communication system.

Abstract: An apparatus and method for wavelength conversion of a signal, for example, a dual-polarization signal, is disclosed. The apparatus implements a single-loop counter-propagating wavelength conversion scheme which provides both up-conversion and down-conversion of the signal within the same loop. Nonlinear wavelength conversion devices in the loop provide both up-conversion and down-conversion of the polarization components of the signal within the loop depending on whether the polarization component travels through the nonlinear conversion device in a clockwise or a counter-clockwise direction. The wavelength-converted signal is available to be extracted from the wavelength-conversion loop. An all-optical wavelength-division multiplexing transponder based on the wavelength-conversion scheme is also disclosed.

Abstract: A wavelength converter for LiDAR systems, such as automotive LiDAR, is disclosed. Implementation of the wavelength converter in LiDAR systems makes possible generation and modulation of laser light in the silicon response region, conversion of the laser light to an eye-safe wavelength for emission and reflection from a target, and efficient conversion of the wavelength of the laser light to the silicon response region. The wavelength converter may implement a single-loop counter-propagating wavelength conversion scheme which provides both up-conversion and down-conversion of the signal within the same loop. The wavelength conversion design also has the potential for vehicle-to-vehicle (V2V) communication to enable a combined LiDAR and V2V communication system.

Abstract: A wavelength converter for LiDAR systems, such as automotive LiDAR, is disclosed. Implementation of the wavelength converter in LiDAR systems makes possible generation and modulation of laser light in the silicon response region, conversion of the laser light to an eye-safe wavelength for emission and reflection from a target, and efficient conversion of the wavelength of the laser light to the silicon response region. The wavelength converter may implement a single-loop counter-propagating wavelength conversion scheme which provides both up-conversion and down-conversion of the signal within the same loop. The wavelength conversion design also has the potential for vehicle-to-vehicle (V2V) communication to enable a combined LiDAR and V2V communication system.

Abstract: An apparatus and method for wavelength conversion of a signal, for example, a dual-polarization signal, is disclosed. The apparatus implements a single-loop counter-propagating wavelength conversion scheme which provides both up-conversion and down-conversion of the signal within the same loop. Nonlinear wavelength conversion devices in the loop provide both up-conversion and down-conversion of the polarization components of the signal within the loop depending on whether the polarization component travels through the nonlinear conversion device in a clockwise or a counter-clockwise direction. The wavelength-converted signal is available to be extracted from the wavelength-conversion loop. An all-optical wavelength-division multiplexing transponder based on the wavelength-conversion scheme is also disclosed.

Abstract: A light diffusing component is disclosed. The light diffusing component comprises a substrate, such as glass, having a frontside, a backside spaced apart from the frontside, and an edge configured to receive a light source. The glass sheet includes at least one scattering layer having a plurality of light scattering centers etched into at least a portion of the frontside of the glass sheet. The scattering centers have an increased density as the distance from the edge increases and the scattering centers are randomly distributed in size and smaller than about 200 ?m. Also disclosed is a method of manufacturing a light diffusing component comprising masking a substrate, such as a glass sheet, and etching the substrate such that the density of the resulting scattering centers increased as the distance from the light source increases.

Abstract: Methods and apparatus for providing one or more components for a display system, particularly for producing diffused light.

Abstract: A light diffusing component and a method of making is disclosed. The light diffusing component may include a substrate sheet and at least one scattering layer. The substrate sheet may have a back side and an edge. The edge may be configured to receive a light source. The at least one scattering layer may have a plurality of light scattering centers etched into at least a portion of the back side of the glass sheet. The scattering centers may have an increased density as the distance from the edge increases. The scattering centers may have a diameter of less than about 30 microns, a maximum depth of about 10 micron or less, and a roughness between about 0.5 nm to about 100 nm, for example.

Abstract: A light diffusing component is disclosed. The light diffusing component comprises a substrate, such as glass, having a frontside, a backside spaced apart from the frontside, and an edge configured to receive a light source. The glass sheet includes at least one scattering layer having a plurality of light scattering centers etched into at least a portion of the frontside of the glass sheet. The scattering centers have an increased density as the distance from the edge increases and the scattering centers are randomly distributed in size and smaller than about 200 ?m. Also disclosed is a method of manufacturing a light diffusing component comprising masking a substrate, such as a glass sheet, and etching the substrate such that the density of the resulting scattering centers increased as the distance from the light source increases.

Abstract: Methods and apparatus for providing one or more components for a display system, particularly for producing diffused light.

Abstract: Bezel-concealing display covers and display devices are disclosed. In one example, a bezel-concealing display cover includes a bezel and a display panel includes a perimeter portion having a first surface and a second surface such that the perimeter portion is configured to be offset from the bezel of the display device by a gap GA. The bezel-concealing display cover further includes a first array of prisms on at least one of the first surface or the second surface of the perimeter portion that extend from an edge of the perimeter portion to a distance L. Each prism of the first array of prisms has a prism angle ?, and the first array of prisms is configured to shift a portion of an image proximate the bezel produced by the display panel such that the shifted portion of the image appears over the bezel to an observer.

Abstract: Curved bezel-concealing display covers and display devices are disclosed. In one embodiment, a bezel-concealing display cover for coupling to a display device having a bezel and a display panel includes a curved perimeter portion having a first surface and a second surface, wherein the curved perimeter portion is configured to be offset from the bezel of the display device by a varying gap GA. The bezel-concealing display cover further includes an array of prisms on at least one of the first surface or the second surface of the curved perimeter portion. The array of prisms extends from an edge of the curved perimeter portion to a distance L. The array of prisms and the curved perimeter portion is configured to shift a portion of an image proximate the bezel produced by the display panel such that the shifted portion of the image appears over the bezel to an observer.

Abstract: Methods and apparatus for providing one or more components for a display system, particularly for producing diffused light.

Abstract: A light collection and light guidance system including: a flat collecting sheet having a first roughened light receiving front surface; and a plurality of optical fibers attached to at least one edge of the flat collecting sheet, wherein the first roughened light receiving front surface of the sheet has a plurality of resonance coupling periodicities, a plurality of correlation lengths, or a combination thereof. Also disclosed is a method of light collection and light guidance using the aforementioned system, or a system including a flat collecting sheet and a solar converter, as defined herein.

Abstract: Methods and apparatus for providing one or more components for a display system, particularly for producing diffused light.

Abstract: Curved bezel-concealing display covers and display devices are disclosed. In one embodiment, a bezel-concealing display cover for coupling to a display device having a bezel and a display panel includes a curved perimeter portion having a first surface and a second surface, wherein the curved perimeter portion is configured to be offset from the bezel of the display device by a varying gap GA. The bezel-concealing display cover further includes an array of prisms on at least one of the first surface or the second surface of the curved perimeter portion. The array of prisms extends from an edge of the curved perimeter portion to a distance L. The array of prisms and the curved perimeter portion is configured to shift a portion of an image proximate the bezel produced by the display panel such that the shifted portion of the image appears over the bezel to an observer.

Abstract: A display device comprising a display panel, a diffusing member positioned between the display panel and an observer, and a directional backlight wherein the directional backlight comprises a half angle divergence equal to or less than 15°. The display cover is preferably configured to shift an image displayed on the display panel relative to an observer to obscure a bezel surrounding the display panel. The use of a directional backlight and a diffusing display cover plate allows for a very small gap between the display panel and the display cover plate.

Abstract: Bezel-concealing display covers and display devices are disclosed. In one example, a bezel-concealing display cover includes a bezel and a display panel includes a perimeter portion having a first surface and a second surface such that the perimeter portion is configured to be offset from the bezel of the display device by a gap GA. The bezel-concealing display cover further includes a first array of prisms on at least one of the first surface or the second surface of the perimeter portion that extend from an edge of the perimeter portion to a distance L. Each prism of the first array of prisms has a prism angle ?, and the first array of prisms is configured to shift a portion of an image proximate the bezel produced by the display panel such that the shifted portion of the image appears over the bezel to an observer.

Abstract: A multicore optical component and corresponding methods of converting a linearly or circularly polarized Gaussian beam of light into a radially or azimuthally polarized beam of light are provided. The multicore optical component comprises a plurality of birefringent, polarization maintaining elliptical cores. The elliptical cores collectively define an azimuthally varying distribution of major axes where the orientation of the major axis of a given elliptical core is given by ?=(180/N)*n+? where n is the core number and ? is any angle greater than 0°.

Abstract: A light collection and light guidance system including: a flat collecting sheet having a first roughened light receiving front surface; and a plurality of optical fibers attached to at least one edge of the flat collecting sheet, wherein the first roughened light receiving front surface of the sheet has a plurality of resonance coupling periodicities, a plurality of correlation lengths, or a combination thereof. Also disclosed is a method of light collection and light guidance using the aforementioned system, or a system including a flat collecting sheet and a solar converter, as defined herein.