Light Prescriptions Innovators, LLC

Seoul Semiconductor Co., Ltd.

Light Engine Limited

Julio C Chaves

Waqidi Falicoff

Pablo Benitez

Juan Carlos Minano

Oliver Dross

William A Parkyn, Jr

Juan Carlos Miñano

Roberto Alvarez

Pablo Benítez

Ruben Mohedano

Maikel Hernandez

Fernando Munoz

Aleksandra Cvetkovic

Ruben Mohendano

Juan C Minaño

Bharathwaj Narasimhan

A display device arranged to generate a light field to illuminate a human eye. The light field comprising a plurality of pencils that virtually intersect a first reference surface and a second reference surface, said first reference surface being the plane passing through the eye ball sphere center and is perpendicular to the skull frontward direction, and said second reference surface located at a distance from the user's skull and being a portion of a sphere centered the eye hall sphere center. The center of said second reference surface defined as the intersection point of the line passing through the eye ball sphere center and pointing in the skull's frontwards direction. Each pencil is a set of straight lines, segments of said lines coincident with light ray trajectories illuminating the eye having approximately equal luminance and color at any time.

Human vision-adapted light field displays

A luminaire includes a mixing chamber having an array of apertures in one wall, a light source to supply light into the mixing chamber, and an array of optics outside the mixing chamber, each positioned to cooperate with a respective one of the apertures to emit light from the mixing chamber as a beam. The shape, size, and/or direction of the output light beam are controllably varied by controlling the shape, size, and/or position of each aperture relative to its associated optic.

Thin luminaire

An etendue squeezing optic includes light guiding elements that are extruded sideways to guide light to a wide outlet surface for efficient injection into an edge face of a flat light guide such as a backlight panel for a visual display, in combination with a light source optically coupled to the light inlet through an air-gap, so that light entering the optic through the air-gap is confined to a cone of directions determined by a critical angle of refraction into the optic from air at the air-gap.

&#xc9;tendue-squeezing light injector and apparatus

A shell integrator has a hollow transparent body with inner and outer surfaces formed as arrays of lenslets. Each lenslet of the inner surface images a common source region in the middle of the hollow body onto a respective lenslet of the outer surface. Each lenslet of the outer surface forms a virtual image of the respective lenslet of the inner surface at the common source region. One integrator has a light-guide following the surface of the hollow body from an inlet end at a central region of the surface to an outlet end at a rim of the hollow body. The light-guide inlet end is shaped to receive light from the common source region and direct such light along the light-guide. Another integrator is generally elongated, and may be semicylindrical. Any of these integrators may have a stepped surface forming a Fresnel lens.

Shell integrator

A folded circularly symmetric illumination optic comprising a first light transfer mode having a first central refractive surface and a second central refractive surface, wherein one of the first and second central refractive surfaces has at least one peened feature; a second light transfer mode having a first refractive surface, a first TIR surface, a second TIR surface and a second refractive surface; a third light transfer mode having a first refractive surface, a first TIR surface and a second refractive surface, wherein the first TIR surface has at least one peening feature, and wherein the second refractive surface is conical; wherein the first TIR surface and second refractive surface of the second light transfer mode is coincident at least one point, wherein the second refractive surface of the third light transfer mode is coincident with the first TIR surface and second refractive surface of the second light transfer mode.

Faceted folded-optic collimator

One optical system comprises a first optical surface, a faceted second optical surface, and a faceted third optical surface. The optical system is operative to convert a first bundle of rays that is continuous in phase space outside the first optical surface into a second bundle of rays that is continuous in phase space outside the third optical surface. Between the second and third optical surfaces the rays making up the first and second bundles form discrete sub-bundles each passing from a facet of the second optical surface to a facet of the third optical surface. The sub-bundles do not form a continuous bundle in a phase space that has dimensions representing the position and angle at which rays cross a surface transverse to the bundle of rays.

Stepped flow-line concentrators and collimators

An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.

Optical devices

Optical manifold for light-emitting diodes

An optical manifold for efficiently combining a plurality of LED outputs into a single, substantially homogeneous output, in a small, cost-effective package. The optical manifolds can be used to combine multiple LEDs of the same color and provide a high intensity output aperture with very high uniformity and sharp borders, or they can be used to generate a multiwavelength output, such as red, green, and blue LEDs that are combined to generate white light. Embodiments are also disclosed that use a single or multiple LEDs and a remote phosphor and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. The optical manifolds are designed to alleviate substantial luminance inhomogeneities inherent to LEDs. The optical manifold utilizes principles of non-imaging optics to transform light and provide directed, substantially uniform light sources.

Growing community of inventors

Coimbra, Portugal

Julio C Chaves