Lumileds LLC

Glo Ab

Koninklijke Philips Corporation N.v.

Philips Lumileds Lighting Company LLC

Nanosys, Inc.

Lumileds Lighting U.s., LLC

Lumileds Holding B.v.

Qunano Ab

Yourii Martynov

Nicola Bettina Pfeffer

Peter Jesper Hanberg

Arjen Gerben Van Der Sijde

Jonas Ohlsson

Steven Konsek

Pieter Johannes Quintus Van Voorst Vader

Frederic Stephane Diana

Oleg Borisovich Shchekin

Gregory Donald Guth

Thierry De Smet

Jyoti Kiron Bhardwaj

Charles André Schrama

Erno Fancsali

Emanuel Stassar

Huub Konijn

Bernardus Hendrikus Wilhelmus Hendriks

Hans-Helmut Bechtel

Lars Samuelson

Marc Andre De Samber

Robert Scott West

Charles Schrama

Quint Van Voorst-Vader

Norbertus Antonius Maria Sweegers

Stephen Andrew Stockman

David Eves

Bjorn Jonas Ohlsson

Bo Pedersen

Ashim Shatil Haque

Philippa C Wagner

Quint Van Voorst Vader

Simon Kuppens

Steven L Konsek

Simon J M Kuppens

Jeffrey A Chaman

Emo Fancsali

A method includes capturing a first image of a scene, detecting a face in a section of the scene from the first image, and activating an infrared (IR) light source to selectively illuminate the section of the scene with IR light. The IR light source includes an array of IR light emitting diodes (LEDs). The method includes capturing a second image of the scene under selective IR lighting from the IR light source, detecting the face in the second image, and identifying a person based on the face in the second image.

Adaptive light source

A method according to embodiments of the invention includes creating a three-dimensional profile of a scene, calculating a relative amount of light for each portion of the scene based on the three-dimensional profile, and activating a light source to provide a first amount of light to a first portion of the scene, and a second amount of light to a second portion of the scene. The first amount and the second amount are different. The first amount and the second amount are determined by calculating a relative amount of light for each portion of the scene.

A method according to embodiments of the invention includes, for a field of view comprising a plurality of portions, determining an amount of light for each portion. LEDs corresponding to each portion are selectively energized over a plurality of time periods, such that a sum of illumination generated by each LED during the plurality of time periods equals the determined amount of light. An image of the field of view is captured, for example by a camera.

Driver for an adaptive light source

The device according to the invention comprises a nanostructured LED with a first group of nanowires protruding from a first area of a substrate and a contacting means in a second area of the substrate. Each nanowire of the first group of nanowires comprises a p-i-n-junction and a top portion of each nanowire or at least one selection of nanowires is covered with a light-reflecting contact layer. The contacting means of the second area is in electrical contact with the bottom of the nanowires, the light-reflecting contact layer being in electrical contact with the contacting means of the second area via the p-i-n-junction. Thus when a voltage is applied between the contacting means of the second area and the light-reflecting contact layer, light is generated within the nanowire. On top of the light-reflecting contact layer, a first group of contact pads for flip-chip bonding can be provided, distributed and separated to equalize the voltage across the layer to reduce the average serial resistance.

Display device including nanostructured LEDs connected in parallel

A method to make light-emitting diode (LED) units include arranging LEDs in a pattern, forming an optically transparent spacer layer over the LEDs, forming an optically reflective layer over the LEDs, and singulating the LEDs into LED units. The method may further include, after forming the optically transparent spacer layer and before singulating the LEDs, forming a secondary light-emitting layer that conforms to the LEDs, cutting the LEDs to form LED groups having a same arrangement, spacing the LED groups on a support, and forming the optically reflective layer in spaces between the LED groups.

Flip-chip SMT LEDs with variable number of emitting surfaces

The present invention relates to nanostructured light emitting diodes, LEDs. The nanostructure LED device according to the invention comprises an array of a plurality of individual nanostructured LEDs. Each of the nanostructured LEDs has an active region wherein light is produced. The nanostructured device further comprise a plurality of reflectors, each associated to one individual nanostructured LED (or a group of nanostructured LEDs. The individual reflectors has a concave surface facing the active region of the respective individual nanostructured LED or active regions of group of nanostructured LEDs.

Nanostructured LED array with collimating reflectors

Nanostructured LED

A light emitting structure includes a packaged back-emitting light emitting device mounted on a reflective substrate. The properties of the reflective surface may be controlled to provide a desired luminance pattern. In this manner, the creation of a light emitting structure that provides a desired luminance pattern may be independent of the provider of the packaged light emitting device.

Luminance pattern shaping using a back-emitting LED and a reflective substrate

Growing community of inventors

Geldrop, Netherlands

Yourii Martynov