Abstract:
An indirect troffer. Embodiments of the present invention provide a troffer-style fixture that is particularly well-suited for use with solid state light sources, such as LEDs. The troffer comprises light bars mounted proximate to a back reflector. A back reflector defines a reflective interior surface of the lighting troffer. To facilitate thermal dissipation, the light bar can act as a heat sink. A portion of the heat sink is exposed to the ambient room environment while another portion functions as a mount surface for the light sources that faces the back reflector. One or more light sources disposed along the light bar mount surface emit light into an interior cavity where it can be mixed and/or shaped prior to emission. In some embodiments, one or more lens plates extend from the light bar out to the back reflector.
Abstract:
A fixture configuration module comprises range control circuitry and fixture control circuitry. The range control circuitry is configured to store a range of a lighting parameter. The range identifies at least a subset of values of the lighting parameter supported by the light fixture to produce light. The fixture control circuitry is communicatively coupled to the range control circuitry and is configured to control the light fixture to produce the light in accordance with the range stored by the range control circuitry.
Abstract:
Lighting devices include a semiconductor light emitting device and first and second spaced-apart lumiphors. The first lumiphor has a first surface that is positioned to receive radiation emitted by the semiconductor light emitting device and a second surface opposite the first surface. The second lumiphor has a first surface that is positioned to receive radiation emitted by the semiconductor light emitting device and radiation emitted by the luminescent materials in the first lumiphor. The first lumiphor is a leaky lumiphor in that the luminescent materials therein wavelength convert less than 90% of the radiation from the semiconductor light emitting device light that is incident on the first lumiphor.
Abstract:
A connector for a light source comprises a first cam having a contact surface that is mounted such that the contact surface is extended and retracted relative to the housing. An electrical contact is provided and positioned to contact an electrical terminal in the socket. A conductor is electrically coupled to the electrical contact where the conductor is connected to a light source. An actuator rotates the cam to the retracted position. The connector may be inserted linearly into the socket and the actuator released to mount the light source in the socket.
Abstract:
A fixture configuration module comprises range control circuitry and fixture control circuitry. The range control circuitry is configured to store a range of a lighting parameter. The range identifies at least a subset of values of the lighting parameter supported by the light fixture to produce light. The fixture control circuitry is communicatively coupled to the range control circuitry and is configured to control the light fixture to produce the light in accordance with the range stored by the range control circuitry.
Abstract:
A fixture configuration module comprises fixture control circuitry and range control circuitry. The fixture control circuitry is configured to control a light fixture to produce light in accordance with a range of a lighting parameter. The range identifies at least a subset of values of the lighting parameter supported by the light fixture to produce light. The range control circuitry is communicatively coupled to the fixture control circuitry and comprises a mechanical switch. The range control circuitry is configured to designate the range to the fixture control circuitry in response to the mechanical switch being positioned into at least one of a plurality of switch positions into which the mechanical switch is positionable.
Abstract:
The present disclosure relates to a lighting fixture that has a light source housing that forms a mixing chamber with an opening for a lens assembly having a central area that is bound by a perimeter line. The lens assembly is mounted over the opening. The central area and the perimeter line need not be visible and are simply used to define how one or more LED arrays are mounted within the mixing chamber. The one or more LED arrays are mounted within the mixing chamber and adapted to emit light having a central axis, wherein the central axis passes through and along a portion of the perimeter.
Abstract:
Lighting devices include a semiconductor light emitting device and first and second spaced-apart lumiphors. The first lumiphor has a first surface that is positioned to receive radiation emitted by the semiconductor light emitting device and a second surface opposite the first surface. The second lumiphor has a first surface that is positioned to receive radiation emitted by the semiconductor light emitting device and radiation emitted by the luminescent materials in the first lumiphor. The first lumiphor is a leaky lumiphor in that the luminescent materials therein wavelength convert less than 90% of the radiation from the semiconductor light emitting device light that is incident on the first lumiphor.
Abstract:
A connector for a light source comprises a first cam having a contact surface that is mounted such that the contact surface is extended and retracted relative to the housing. An electrical contact is provided and positioned to contact an electrical terminal in the socket. A conductor is electrically coupled to the electrical contact where the conductor is connected to a light source. An actuator rotates the cam to the retracted position. The connector may be inserted linearly into the socket and the actuator released to mount the light source in the socket.