Abstract: A dielectric lens is disclosed comprising a center portion that extends along a cylinder having a central axis and a plurality of spoke portions that are attached to the center portion and extend to a spherical perimeter region in a radial direction from the center portion. The plurality of spoke portions includes at least a first monolithic spoke portion extending from the center portion to the spherical perimeter region and the center portion and the plurality of spoke portions define a plurality of cavity regions among the plurality of spoke portions. The center portion, the cylinder, the plurality of spoke portions, and the plurality of cavity regions are included in a gradient index (GRIN) dielectric lens having a plurality of relative permittivities that are based on a radial distance from the center portion.

Abstract: A dielectric lens is disclosed comprising a center portion that extends along a cylinder having a central axis and a plurality of spoke portions that are attached to the center portion and extend to a spherical perimeter region in a radial direction from the center portion. The plurality of spoke portions includes at least a first monolithic spoke portion extending from the center portion to the spherical perimeter region and the center portion and the plurality of spoke portions define a plurality of cavity regions among the plurality of spoke portions. The center portion, the cylinder, the plurality of spoke portions, and the plurality of cavity regions are included in a gradient index (GRIN) dielectric lens having a plurality of relative permittivities that are based on a radial distance from the center portion.

Abstract: Certain aspects of the present disclosure provide a method and apparatus for image sensing. Embodiments include a first plurality of light-sensing elements arranged in a first plurality of rows and a first plurality of columns in a first image sensing plane. Embodiments include a first lens element disposed within a position in a central row of the first plurality of rows and in a central column of the first plurality of columns. Embodiments include a second plurality of light-sensing elements arranged in a second plurality of rows in a second image sensing plane, different from the first image sensing plane. In certain embodiments, the first lens element is configured to redirect incident light reflected from a destination onto the second plurality of light-sensing elements in the second image sensing plane for use in guiding a steerable object toward the destination.

Abstract: Certain aspects of the present disclosure provide a method and apparatus for image sensing. Embodiments include a first plurality of light-sensing elements arranged in a first plurality of rows and a first plurality of columns in a first image sensing plane. Embodiments include a first lens element disposed within a position in a central row of the first plurality of rows and in a central column of the first plurality of columns. Embodiments include a second plurality of light-sensing elements arranged in a second plurality of rows in a second image sensing plane, different from the first image sensing plane. In certain embodiments, the first lens element is configured to redirect incident light reflected from a destination onto the second plurality of light-sensing elements in the second image sensing plane for use in guiding a steerable object toward the destination.

Abstract: An apparatus includes a center portion and a plurality of spoke portions that are in contact with the center portion and that extend to a perimeter region. The plurality of spoke portions include at least a first monolithic spoke portion extending from the center portion to the perimeter region, and the center portion and the plurality of spoke portions define a plurality of cavity regions among the plurality of spoke portions. The center portion, the plurality of spoke portions, and the plurality of cavity regions are included in a gradient index (GRIN) lens having a plurality of effective dielectric constants that are based on a radial distance from the center portion.

Abstract: An apparatus includes a center portion and a plurality of spoke portions that are in contact with the center portion and that extend to a perimeter region. The plurality of spoke portions include at least a first monolithic spoke portion extending from the center portion to the perimeter region, and the center portion and the plurality of spoke portions define a plurality of cavity regions among the plurality of spoke portions. The center portion, the plurality of spoke portions, and the plurality of cavity regions are included in a gradient index (GRIN) lens having a plurality of effective dielectric constants that are based on a radial distance from the center portion.