Xicato, Inc.

Philips Lumileds Lighting Company LLC

Koninklijke Philips Corporation N.v.

Lumileds Lighting U.s., LLC

Other

Lumilecs Lighting U.s., LLC

Philips Lighting Holding B.v.

Lumileds Holding B.v.

Philips Lighting North America Corporation

Gerard Harbers

Peter K Tseng

John S Yriberri

Christopher R Reed

Mark A Pugh

Serge J Bierhuizen

Barry Mark Loveridge

Gregory W Eng

Martin Emil Mueller

Christoph Gerard August Hoelen

Matthijs Hendrik Keuper

Jeffrey P Hushley

Paul Scott Martin

Menne T De Roos

Raghuram L V Petluri

Oleg Borisovich Shchekin

Robert Scott West

Serge J A Bierhuizen

John Edward Epler

Grigoriy Basin

Hong Luo

Jim Weijian Li

Frans Hubert Konijn

Simon H A Begemann

Willem Hendrik Smits

Robert F M Hendriks

Michael Ragan Krames

Michael David Camras

Frank Michael Steranka

Wayne L Snyder

Douglas W Pocius

Helena Ticha

Ladislav Tichy

William R Imler

R Scott West

Robert H Holman

Laurie Scheffel

Nicola Bettina Pfeffer

Gerd O Mueller

Regina B Mueller-Mach

Tyler Robin Kakuda

Kelly C McGroddy

Stephen A Herman

Steven Paolini

William David Collins, Iii

Michael D Pashley

Thomas M Marshall

Stefan Eberle

Warren A Kartadinata

Takaaki Yagi

Edwin De Groot

Kalil Kalantar

Padmanabha Rao Ravilisetty

Steven P&agrave;olini

Serge Joël Bierhuizen

Raghuram Lv Petluri

Johannes W H S Smitt

Padmanabha Rao Ravillisetty

Menne T Deroos

Michael R Krames

Robert S West

Mark Pugh

Matthijs Keuper

Huub Konijn

Willem H Smits

An LED based illumination device includes an and a LED based light engine and a light control and communications gateway (LCCG). An LED driver in the LCCG receives receives a light control command via a lighting control network interface and in response provides an an electrical current that controls the amount of light produced by the LED based light engine. The lighting control network interface of the LCCG is communicatively coupled to a lighting control network. The LCCG additionally includes a building management network interface that is communicatively coupled to a building management network. Identification and operational data for a plurality of LED based illumination devices communicatively coupled to the lighting control network is stored in memory, and operational data is communicated from the LCCG over the building management network interface to a building management system communicately coupled to the LCCG over the building management network.

Lighting communications gateway

A Light Emitting Diode (LED) based illumination device authenticates a mobile electronics device on a lighting communications network. The mobile electronic device may request a communications link on the lighting communications network and detect modulated illumination light emitted from the LED based illumination device. The modulated light may include an optical code. The mobile electronic device may determine the optical code from the modulated illumination light and communicate an indication of the optical code to the LED based illumination device. The LED based illumination device may determine if the indication of the optical code is correct and provide, in response, a communication link to the mobile electronics device on the lighting communications network.

Lighting based authentication of a mobile electronic device

An LED based illumination device includes a receiver and a transmitter for communications adhering to a lighting control communications protocol and a high speed communications protocol. The LED based illumination device may be part of a lighting control network, wherein the data transmission rate of the high speed communications protocol is more than twice that of the lighting control communications protocol. The lighting control network may be coupled to a digital communications gateway, including a digital communications interface configured to be coupled to a network operating in accordance with an internet protocol and a lighting control network interface coupled to the lighting control network. A processor determines a summary status value of the LED based illumination device based on information stored in memory of the digital communications gateway. The digital communications gateway may periodically transmit the time of day to the LED based illumination device over the lighting control network.

LED-based lighting control network communication

A light control and data interface module (LCDIM) is used to control an LED based illumination device. The LCDIM includes a transceiver that receives communication signals from one or more sensor modules. The signals may include an indication of an identity of the one or more sensor modules and elapsed time since a triggering event was detected. One or more processors are configured to receive the communication signal and to determine a delay time to trigger a lighting control response. The one or more processors are further configured to cause the transmission of a command signal to a power converter coupled to the LCDIM to implement the lighting control response.

Synchronized light control over a wireless network

A multi-port communications gateway for one or more LED based illumination devices includes a lighting communications interface that is configured to be coupled to the LED based illumination device(s). The lighting communications interface transmits both data signals and power signals. A lighting control network interface is configured to be coupled to a lighting control system, which generates control commands. A building management network interface is configured to be coupled to a building management system and is configured to receive and transmit information from sensors coupled to the LED based illumination device(s). Memory in the gateway stores information received from the LED based illumination device (s). A processor determines a summary status value associated with the LED based illumination device(s) based on information stored in memory. A real time clock determines a date and time that is periodically transmitted to the LED based illumination device(s).

Multi-port LED-based lighting communications gateway

An LED based illumination device includes an and a LED based light engine and a light control and communications gateway (LCCG). An LED driver in the LCCG receives a light control command via a lighting control network interface and in response provides an electrical current that controls the amount of light produced by the LED based light engine. The lighting control network interface of the LCCG is communicatively coupled to a lighting control network. The LCCG additionally includes a building management network interface that is communicatively coupled to a building management network. Identification and operational data for a plurality of LED based illumination devices communicatively coupled to the lighting control network is stored in memory, and operational data is communicated from the LCCG over the building management network interface to a building management system communicatively coupled to the LCCG over the building management network.

Light Emitting Diode (LED) based illumination devices in a lighting communications network may be commissioned into a group with a mobile electronics device, such as a mobile phone, tablet computer, etc. The identities of a plurality of LED illumination devices are determined and a request is communicated to the identified LED based illumination devices to modulate emitted light for a period of time. The modulated light is detected by the mobile electronics device, which may then determine a group of the LED based illumination devices. For example, the detected intensity of the modulated light may be used to determine the group. In another example, the physical locations of the LED based illumination devices are determined by detecting a sequence of images (e.g., video) of the modulated light, and the group may be determined based on the locations of the LED based illumination devices.

Commissioning of devices on a lighting communications network

An LED based illumination device includes LEDs mounted to an LED mounting board, an integrated output window sub-assembly, and a thermal frame coupled between the integrated output window sub-assembly and the LED mounting board. The integrated output window sub-assembly may include an output window and a thermally conductive ring coupled to the perimeter surface of the output window. The thermally conductive ring may have a radial width equal to or greater than the thickness of the output window. Additionally, the output window and the thermally conductive ring may have coplanar top and bottom surfaces. The thermally conductive ring surrounding the perimeter of the output window may include one or more pockets into which a curable, thermally conductive bonding material is disposed in an uncured state and flows into a gap between the perimeter of the output window and the thermally conductive ring.

LED based illumination device with integrated output window

A light emitting diode (LED) based illumination module performs on-board diagnostics. For example, diagnostics may include estimating elapsed lifetime, degradation of phosphor, thermal failure, failure of LEDs, or LED current adjustment based on measured flux or temperature. The elapsed lifetime may be estimated by scaling accumulated elapsed time of operation by an acceleration factor derived from actual operating conditions, such as temperature, current and relative humidity. The degradation of phosphor may be estimated based on a measured response of the phosphor to pulsed light from the LEDs. A thermal failure may be diagnosed using a transient response of the module from a start up condition. The failure of LEDs may be diagnosed based on measured forward voltage. The current for LEDs may adjusted using measured flux values and current values and a desired ratio of flux values. Additionally, the LED current may be scaled based on a measured temperature.

LED-based illumination module on-board diagnostics

An illumination module includes a light mixing cavity with an interior surface area and window that are physically separated from an LED. A portion of the window is coated with a first wavelength converting material and a portion of the interior surface area is coated with a second wavelength converting material. The window may be coated with LuAG:Ce. The window may also be coated with a third wavelength converting material with a peak emission wavelength between 615-655 nm where the spectral response of light emitted from the window is within 20% of a blackbody radiator at the same CCT. The LED may emit a light that is converted by the light mixing cavity with a color conversion efficiency ratio greater than 130 lm/W where the light mixing cavity includes two photo-luminescent materials with a peak emission wavelengths between 508-528 nm and 615-655 nm.

Efficient LED-based illumination modules with high color rendering index

An electrical interface module (EIM) is provided between an LED illumination device and a light fixture. The EIM includes an arrangement of contacts that are adapted to be coupled to an LED illumination device and a second arrangement of contacts that are adapted to be coupled to the light fixture and may include a power converter. Additionally, an LED selection module may be included to selectively turn on or off LEDs. A communication port may be included to transmit information associated with the LED illumination device, such as identification, indication of lifetime, flux, etc. The lifetime of the LED illumination device may be measured and communicated, e.g., by an RF signal, IR signal, wired signal or by controlling the light output of the LED illumination device. An optic that is replaceably mounted to the LED illumination device may include, e.g., a flux sensor that is connected to the electrical interface.

Flexible electrical connection of an LED-based illumination device to a light fixture

Growing community of inventors

Sunnyvale, CA, United States of America

Gerard Harbers