Abstract:
A dimmable solid state lighting apparatus can include a plurality of light emitting diode (LED) segments including a first LED segment that can have a targeted spectral power distribution for light emitted from the apparatus that is different than spectral power distributions for other LED segments included in the plurality of LED segments. An LED segment selection circuit can be configured to selectively control current through the plurality of LED segments to shift the light emitted by the apparatus to the targeted spectral power distribution responsive to dimming input.
Abstract:
A dimmable solid state lighting apparatus can include a plurality of light emitting diode (LED) segments including a first LED segment that can have a targeted spectral power distribution for light emitted from the apparatus that is different than spectral power distributions for other LED segments included in the plurality of LED segments. An LED segment selection circuit can be configured to selectively control current through the plurality of LED segments to shift the light emitted by the apparatus to the targeted spectral power distribution responsive to dimming input.
Abstract:
A lamp comprises an interior space and a base. An enclosure may be connected to the base to enclose the interior space. At least one LED board divides the interior space into a plurality of sectors. An LED is located in each sector in the enclosure operable to emit light when energized through an electrical path from the base. Light from the LED is reflected by a wall of the sector to create a reflected light source.
Abstract:
An antenna arrangement for a solid-state lamp is disclosed. Embodiments of the invention provide for improved performance by positioning the antenna for radio frequency (RF) control of the lamp non-parallel to the main driver board and/or the LED board. This positioning can provide distance from the main board circuitry and a ground plane for the antenna. An RF daughter card can be used for the antenna and also possibly for other RF components. In some embodiments, the antenna is substantially perpendicular to the main board. In some embodiments, the lamp is dimensioned as a replacement for a standard incandescent bulb, such as an A, BR, or PAR bulb. In some embodiments, an optically transmissive enclosure and/or a base define the interior cavity of the lamp. A plurality of LEDs can be disposed within the optically transmissive enclosure.
Abstract:
A lamp comprises an interior space and a base. An enclosure may be connected to the base to enclose the interior space. At least one LED board divides the interior space into a plurality of sectors. A LED is located in each sector in the enclosure operable to emit light when energized through an electrical path from the base. Light from the LED is reflected by a wall of the sector to create a reflected light source.
Abstract:
A three-way solid-state light bulb is disclosed. Embodiments of the present invention provide power supply circuitry that allows a solid-state lamp or light bulb to work in a manner similar to that of a common three-way incandescent light bulb. The power supply can selectively receive the input voltage, usually AC line voltage, on first and second input terminals. In some embodiments, a control circuit is operable to influence a feedback loop by diverting current and/or in some cases alter a current sense resistance in accordance with the selective presence of the voltage at the first and second inputs. The light output of the solid-state emitter or solid-state emitters in the bulb is set in accordance with a selective presence of the input voltage.
Abstract:
An antenna arrangement for a solid-state lamp is disclosed. Embodiments of the invention provide for improved performance by positioning the antenna for radio frequency (RF) control of the lamp non-parallel to the main driver board and/or the LED board. This positioning can provide distance from the main board circuitry and a ground plane for the antenna. An RF daughter card can be used for the antenna and also possibly for other RF components. In some embodiments, the antenna is substantially perpendicular to the main board. In some embodiments, the lamp is dimensioned as a replacement for a standard incandescent bulb, such as an A, BR, or PAR bulb. In some embodiments, an optically transmissive enclosure and/or a base define the interior cavity of the lamp. A plurality of LEDs can be disposed within the optically transmissive enclosure.
Abstract:
A three-way solid-state light bulb is disclosed. Embodiments of the present invention provide power supply circuitry that allows a solid-state lamp or light bulb to work in a manner similar to that of a common three-way incandescent light bulb. The power supply can selectively receive the input voltage, usually AC line voltage, on first and second input terminals. In some embodiments, a control circuit is operable to influence a feedback loop by diverting current and/or in some cases alter a current sense resistance in accordance with the selective presence of the voltage at the first and second inputs. The light output of the solid-state emitter or solid-state emitters in the bulb is set in accordance with a selective presence of the input voltage.