Devices utilizing holographic 4D plenoptic capture and display technologies to generate a light field function to provide glasses-less vision correction for observers with imperfect vision, and to project an image according to the generated light field function, and methods for calibrating a four-dimensional light field for a user with an uncorrected visual acuity.

Provided is a light extraction member which can be obtained at an adequate cost, while achieving desired light output characteristics without requiring complicated design and structure, and which is easily combined with another member, while exhibiting excellent productivity and excellent handling properties. A light extraction member according to the present embodiment includes: a light guide part which has a first main surface being on the light output side and a second main surface being on the reverse side of the first main surface; and a light output control layer which is a predetermined pattern formed on the first main surface. With respect to this light extraction member, the refractive index n1 of the light guide part and the refractive index n2 of the light output control layer satisfy relational expression n1>n2; and the refractive index n2 of the light output control layer is from 1.01 to 1.30.

A light module includes a plurality of optical fibers configured as an optical fiber panel, wherein a first end of the plurality of optical fibers is configured into a bundle; a first solid state light source coupled to the bundle; a second solid state light source; and a reflector configured to reflect light rays transmitted from the second solid state light source towards the optical fiber panel. A method of transmitting light includes transmitting a first set of light rays, via a first solid state light source, to a plurality of optical fibers of an optical fiber panel, wherein the first solid state light source is coupled to the plurality of optical fibers; transmitting a second set of light rays, via a second solid state light source, towards a reflector; and reflecting the second set of light rays from the reflector towards the optical fiber panel.

A method for manufacturing fabric that passes colonnaded light is described herein. The method includes weaving a first yarn and a second yarn to create a woven fabric and weaving a light emitting yarn through the woven fabric, wherein the light emitting yarn creates a plurality of loops of light emitting yarn on at least one side of the woven fabric. The method also includes finishing the woven fabric to create columns of light emitting yarn throughout the fabric by removing the plurality of loops.

Lamp shades are provided with ornamentation utilizing light pipes and fiber optics, using light pipe technology to provide an ornamented shade. For lampshades of the truncated conical shape type, this light pipe ornamentation includes light emitting top and/or bottom circular rims, as well as an optional light emitting central thematic character/logo figure in 3D relief. Light is transmitted from the interior of the shade to illuminate the light pipe features, or from fiber optic electrically conductive wires/cables, which may include circular light pipes attached as integrally formed top and bottom rims of the lamp shade. Alternatively, the circular decorative light pipes may be formed by a plurality of arcuate segments, which, when joined together, form a circular rim, where light may be diffused and sent through the segments. The translucent light pipe elements may be injection molded of tinted light guide grade plastic resin

A method and device for emitting electromagnetic radiation at high power using nonpolar or semipolar gallium containing substrates such as GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, is provided. In various embodiments, the laser device includes plural laser emitters emitting green or blue laser light, integrated a substrate.

Device for printing three-dimensional objects using an energy-field projection system. In operation, energy is projected into a print medium according to a four dimensional (4D) energy-field function for exposing the print-medium to a threshold energy-intensity level that causes the print medium to harden in the shape of a three-dimensional object.

A head mounted display (HMD) includes a field curvature corrected (FC) display to mitigate field curvature in an image that is output to a user's eyes. The FC display includes elements that generate the image light and elements to mitigate field curvature from the image light. The FC display may include a display panel with lenses, a display panel with a reflective polarizer and reflective surface, or other optical elements. The FC display may include a pancake lens configuration including a polarized display with a quarter wave plate, a reflective mirror, and a polarization reflective mirror.

A light guide assembly for use with a retractor having a channel for slidably receiving an end portion of a light guide. The light guide assembly includes a light guide having the end portion for slidably inserting into the channel and retentor for releasably holding in position the end portion relative to the retractor.

A concealed light fixture sign includes a flange having stencil openings formed therein that define a message. A container extends from a rear surface of the flange and provides light through the stencil openings. The container is configured to be installed completely within a recess behind a mounting surface with the flange positioned substantially flush with the mounting surface. Translucent inserts positioned within the stencil openings are removable to provide access to an interior of the container after installation of the light fixture sign.