Lumileds LLC

Nazila Soleimani

Frederic Stephane Diana

Yifeng Qiu

Alan Andrew McReynolds

Jeroen Den Breejen

Gregory Donald Guth

Michael Wasilko

Ronald Johannes Bonne

John Michael Cesaratto

Alan Andrew Mcreynolds

A light engine and system are disclosed in which the light engine contains a core comprising an opening extending through opposing surfaces and a flexible printed circuit board (PCB). The PCB includes a flexible body disposed on an outside of the core and having independently addressable sets of illumination sources mounted thereto, and flexible legs extending from the body and through the opening. The legs are bent such that a terminal portion of each leg is substantially parallel to the opposing surfaces of the core. Independent control of the sets of illumination sources is provided via the legs. The body is separated into segments, each on a different section of the outside and containing body contacts electrically independent of the body contacts of each other segment. Each leg is associated with a different segment, and contains leg contacts on the terminal portion in electrical contact with the associated body contacts.

Light engines with dynamically controllable light distribution

An apparatus and system are disclosed and include a vehicle interior lighting system comprising that includes a light engine with a plurality of independently addressable light emitting diode (LED) segments, each independently addressable LED segment including at least one LED, a flexible printed circuit board (PCB) having a base and plurality of legs extending from the base, each leg supporting an independently addressable LED segment, and a light guide plate configured to provide illumination from the plurality of independently addressable LED segments inside the vehicle. A processor may be configured to receive information from a o vehicle sensing system, a vehicle communication system, or a detection system, and may generate a signal. A controller may be configured to provide one or more light control signals to modify at least one light characteristic of at least one of the plurality of independently addressable LED segments based on the signal.

An LED device holder, an LED lighting system and a method of manufacturing an LED lighting system are described herein. An LED lighting system includes a holder defining an aperture. The aperture has a perimeter and a fillet adjacent the perimeter. The fillet has a radius greater than or equal to 2.0 mm and less than or equal to 4.6 mm. An LED array is mechanically coupled to the holder. The LED array has a light emitting surface exposed through the aperture.

LED device holder, LED lighting system, and method of manufacture

A flexible printed circuit board and method of fabrication are disclosed. The flexible printed circuit board has a flexible body with multiple segments. Each segment has multiple body contacts that are electrically isolated from body contacts of each other segment. The flexible printed circuit further has multiple flexible legs in which each leg extends from a different segment and contains multiple leg contacts disposed proximate to a distal end of the leg from the body. Each leg contact is connected with a different body contact of the leg. The flexible printed circuit board is formed from a multilayer structure that includes: a dielectric layer, a metal layer adjacent to the dielectric layer, and a solder mask layer adjacent to the metal layer, the solder mask layer exposing portions of the metal layer to form the body contacts.

Light fixture with dynamically controllable light distribution

A light engine is disclosed in which the light engine contains a core having an opening extending completely therethrough and independently addressable LED segments. The opening defines an inner surface of the core. Each segment has LEDs and is attached to a flexible PCB. The PCB has a flexible body attached to one of an inner or outer surface of the core and to which the segments are mounted, and flexible legs extending from the body, along the core, and traverse and adjacent to the other of the inner or outer surface. A light guide plate (LGP) receives and guides light from the segments so that the light exits to provide illumination. The segments emit light in all directions of a plane created by the LGP. A reflector opposes and covers a top surface of the LGP and the segments and reflects light from the LGP back into the LGP.

A light fixture includes a core having an opening; a flexible printed circuit board (PCB) supported by the core; a plurality of LED segments multiple LEDs mounted on the flexible PCB; and a light guide plate (LGP) having an opening within which the core is fitted, such that the LEDs emit light in all directions of a plane defined by the LGP, such light exiting the LGP to provide illumination.

Light fixture with light guide and radially emitting LEDs

A light engine system is disclosed in which the light engine system comprises a light engine. The light engine comprises independently addressable LED segments, each LED segment comprising LEDs and a flexible PCB to which the segments are attached. A light guide plate (LGP) is provided into which light from the segments is introduced, in which the light is guided, and from which the light exits to provide illumination. The segments emit light in all directions of a plane created by the LGP. A diffuser opposes a first surface of the LGP over substantially the entirety of the LGP. The diffuser diffuses light exiting the LGP into the environment away from the light engine.

An apparatus is disclosed comprising: a light guide having an opening formed thereon; an illumination source at least partially disposed in the opening, the illumination source including a plurality of LEDs disposed on a flexible circuit that is wrapped around a base, which may be thermally conductive, the base having a central opening, and the flexible circuit including a plurality of legs, each leg including electrical wiring for independently operating a different one of the LEDs, each leg being wrapped around a bottom edge of the base, and into the central opening, to come above the illumination source and connect to a control board that is situated above the illumination source; and a heat-dissipating element disposed over the illumination source, the heat-dissipating element being thermally coupled to the base to dissipate heat generated by the LEDs that is supplied to the heat dissipating element via the base.

A light engine is disclosed in which the light engine contains a core comprising an opening extending completely through the core and independently addressable LED segments. The opening defines an inner surface of the core. Each segment has multiple LEDs. A PCB contains a body adjacent to one of an inner or outer surface of the core and to which the LED segments are attached and legs extending from the body and bent to be adjacent and traverse to the other of the inner or outer surface. Each leg is associated with a different LED segment. Control circuitry is connected with the legs of the flexible PCB and independently controls parameters of the LED segments to provide a preset illumination distribution and intensity based on user input.

Growing community of inventors

San Jose, CA, United States of America

Nazila Soleimani