Abstract: 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.

Abstract: An LED based illumination device includes a plurality of LEDs that emit light through an output port of a housing. The LED based illumination device includes a heat sink that is in thermal contact with the plurality of LEDs. A peripheral electrical circuit board is configured to be contained within the housing, e.g., surrounding at least a portion of the heat sink. The peripheral electrical circuit board may include a radio frequency (RF) transceiver configured to communicate data between the LED based illumination device and another electronic device. A primary electrical circuit board may be electrically coupled to the peripheral electrical circuit board and electrically coupled to the plurality of LEDs.

Abstract: A reflector housing is detachably coupled to an LED based illumination device and includes a flange having a surface facing the environment illuminated by the LED based illumination device. The reflector housing further includes a reflector having an input port that receives light emitted from the LED based illumination device and an output port through which light passes toward the environment. At least one sensor, such as a sensor for occupancy, an ambient light, a temperature, ultrasound, vibration, pressure, or a camera, microphone, visual indicator, or photodetector, is coupled to the flange such that at least a portion of the sensor faces the environment illuminated by the LED based illumination device. A reflector interface module configured to receive at least one signal from the sensor is coupled to the reflector housing. Additionally, a communications interface subsystem is configured to transmit and receive communications signals to and from the reflector housing.

Abstract: A light emitting diode module is produced using at least one LED and at least two selectable components that form a light mixing chamber. First and second selectable components have first and second types of wavelength converting materials with different wavelength converting characteristics. The first and second wavelength converting characteristics alter the spectral power distribution of the light produced by the LED to produce light with a color point that is a predetermined tolerance from a predetermined color point. Moreover, a set of LED modules may be produced such that each LED module has the same color point within a predetermined tolerance. The LED module may be produced by pre-measuring the wavelength converting characteristics of the different components selecting components with wavelength converting characteristics that convert the spectral power distribution of the LED to a color point that is a predetermined tolerance from a predetermined color point.

Abstract: 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.

Abstract: An LED based illumination device includes a plurality of LEDs that emit light through an output port of a housing. The LED based illumination device includes a heat sink that is in thermal contact with the plurality of LEDs. A peripheral electrical circuit board is configured to be contained within the housing, e.g., surrounding at least a portion of the heat sink. The peripheral electrical circuit board may include a radio frequency (RF) transceiver configured to communicate data between the LED based illumination device and another electronic device. A primary electrical circuit board may be electrically coupled to the peripheral electrical circuit board and electrically coupled to the plurality of LEDs.

Abstract: 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.

Abstract: A light emitting diode module is produced using at least one LED and at least two selectable components that form a light mixing chamber. First and second selectable components have first and second types of wavelength converting materials with different wavelength converting characteristics. The first and second wavelength converting characteristics alter the spectral power distribution of the light produced by the LED to produce light with a color point that is a predetermined tolerance from a predetermined color point. Moreover, a set of LED modules may be produced such that each LED module has the same color point within a predetermined tolerance. The LED module may be produced by pre-measuring the wavelength converting characteristics of the different components selecting components with wavelength converting characteristics that convert the spectral power distribution of the LED to a color point that is a predetermined tolerance from a predetermined color point.

Abstract: An LED based illumination module includes a thermal interface surface that is coupled to a thermal interface surface of a reflector using engaging members that generate a compressive force between the thermal interface surfaces. The engaging members may be, e.g., protrusions that interface with recesses, spring pins, formed sheet metal, magnets, mounting collar, etc. The reflector may include a vented portion that is not optically coupled to the LED based illumination module to allow air to pass through the reflector.

Abstract: A light emitting diode module is produced using at least one LED and at least two selectable components that form a light mixing chamber. First and second selectable components have first and second types of wavelength converting materials with different wavelength converting characteristics. The first and second wavelength converting characteristics alter the spectral power distribution of the light produced by the LED to produce light with a color point that is a predetermined tolerance from a predetermined color point. Moreover, a set of LED modules may be produced such that each LED module has the same color point within a predetermined tolerance. The LED module may be produced by pre-measuring the wavelength converting characteristics of the different components selecting components with wavelength converting characteristics that convert the spectral power distribution of the LED to a color point that is a predetermined tolerance from a predetermined color point.

Abstract: An LED based illumination module includes a thermal interface surface that is coupled to a thermal interface surface of a reflector using engaging members that generate a compressive force between the thermal interface surfaces. The engaging members may be, e.g., protrusions that interface with recesses, spring pins, formed sheet metal, magnets, mounting collar, etc. The reflector may include a vented portion that is not optically coupled to the LED based illumination module to allow air to pass through the reflector.

Abstract: A reflector housing is detachably coupled to an LED based illumination device and includes a flange having a surface facing the environment illuminated by the LED based illumination device. The reflector housing further includes a reflector having an input port that receives light emitted from the LED based illumination device and an output port through which light passes toward the environment. At least one sensor, such as a sensor for occupancy, an ambient light, a temperature, ultrasound, vibration, pressure, or a camera, microphone, visual indicator, or photodetector, is coupled to the flange such that at least a portion of the sensor faces the environment illuminated by the LED based illumination device. A reflector interface module configured to receive at least one signal from the sensor is coupled to the reflector housing. Additionally, a communications interface subsystem is configured to transmit and receive communications signals to and from the reflector housing.

Abstract: A light emitting device is produced using a plurality of light emitting diodes within a light mixing cavity formed by surrounding sidewalls. The sidewalls may be integrally formed as part of a surrounding heat sink or alternatively may be an insert into a cavity within a heat sink. The reflective sidewalls may be coated with a diffusing material and/or covered with one or more phosphors. Multiple phosphors are located at different locations of the cavity, e.g., on the sidewalls, a window covering the output port, or on a reflector attached to the bottom of the cavity. The light emitting diodes may be positioned rotationally symmetrically around the optical axis on a board.

Abstract: An illumination module includes a plurality of Light Emitting Diodes (LEDs). Multiple color conversion cavities are present, each with sidewalls coated with wavelength converting materials. One or more LEDs are located within each color conversion cavity. A transmissive layer may be deposited over the color conversion cavities and may include additional wavelength converting material. The wavelength converting materials may be selected to produce an output light with target color point. Additionally, a secondary light mixing cavity may be present over the multiple color conversion cavities.

Abstract: A mounting collar on a light fixture provides a compressive force between the illumination module and a light fixture. For example, a mounting collar that is fixed to the light fixture may engage with an illumination module to deform elastic mounting members on the illumination module to generate the compressive force. The mounting collar may include tapered features on first and second members that are moveable with respect to each other and that when engaged generate the compressive force. The mounting collar may include elastic mounting members on first and second members that move with respect to each other, wherein the movement deforms the elastic mounting members to generate the compressive force. The mounting collar may include an elastic member, wherein movement movement of the mounting collar relative to a light fixture deforms the elastic member to generate the compressive force.

Abstract: A light emitting diode module is produced using at least one LED and at least two selectable components that form a light mixing chamber. First and second selectable components have first and second types of wavelength converting materials with different wavelength converting characteristics. The first and second wavelength converting characteristics alter the spectral power distribution of the light produced by the LED to produce light with a color point that is a predetermined tolerance from a predetermined color point. Moreover, a set of LED modules may be produced such that each LED module has the same color point within a predetermined tolerance. The LED module may be produced by pre-measuring the wavelength converting characteristics of the different components selecting components with wavelength converting characteristics that convert the spectral power distribution of the LED to a color point that is a predetermined tolerance from a predetermined color point.

Abstract: An illumination module includes a plurality of Light Emitting Diodes (LEDs) and a light conversion sub-assembly mounted near but physically separated from the LEDs. The light conversion sub-assembly includes at least a portion that is a polytetrafluoroethylene (PTFE) material that also includes a wavelength converting material. Despite being less reflective than other materials that may be used in the light conversion sub-assembly, the PTFE material unexpectedly produces an increase in luminous output, compared to other more reflective materials, when the PTFE material includes a wavelength converting material.

Abstract: An illumination module includes a plurality of Light Emitting Diodes (LEDs). A grid structure is present on a transmissive layer over the LEDs, such as an output window, to form a plurality of color conversion pockets. A portion of the pockets are coated with a first type of wavelength converting material while other portions of the pockets are coated with a different type of wavelength converting material.

Abstract: A light emitting diode module is produced using at least one LED and at least two selectable components that form a light mixing chamber. First and second selectable components have first and second types of wavelength converting materials with different wavelength converting characteristics. The first and second wavelength converting characteristics alter the spectral power distribution of the light produced by the LED to produce light with a color point that is a predetermined tolerance from a predetermined color point. Moreover, a set of LED modules may be produced such that each LED module has the same color point within a predetermined tolerance. The LED module may be produced by pre-measuring the wavelength converting characteristics of the different components selecting components with wavelength converting characteristics that convert the spectral power distribution of the LED to a color point that is a predetermined tolerance from a predetermined color point.