Abstract: An LED bulb includes a stem body, a shell, a plurality of LEDs, and a thermally conductive liquid. The shell is connected to the stem body. The plurality of LEDs is disposed within the shell. The thermally conductive liquid is held within the shell. The LEDs and the shell are configured to provide the LED bulb with a uniform light-distribution profile.

Abstract: A liquid-cooled LED bulb including a base and a shell connected to the base forming an enclosed volume. The liquid-cooled LED bulb also includes a plurality of LEDs attached to the base and disposed within the shell. The LED bulb also includes a thermally-conductive liquid held within the enclosed volume and a quantum dot material for adjusting the wavelength of light emitted from LED bulb.

Abstract: An LED bulb includes a base, a shell, a plurality of LEDs, and a thermally conductive liquid. The shell is connected to the base. The plurality of LEDs is attached to the base and disposed within the shell. The thermally conductive liquid is held within the shell. The LED bulb is configured to produce a uniform light-distribution profile.

Abstract: A light emitting diode (LED) bulb configured to scatter certain wavelengths of light. The LED bulb includes a base having threads, a bulb shell, at least one LED, and a plurality of particles disposed within the bulb shell. The plurality of particles has a first and second set of particles. The first set of particles is configured to scatter short wavelength components of light emitted from the at least one LED and has particles with an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED. The second set of particles is configured to scatter light emitted from the at least one LED, and has particles with an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED.

Abstract: A circuit for driving multiple light emitting diodes (LEDs) includes at least two sets of LEDs, each set comprised of one or more LEDs in series. The circuit further includes a single inductor connected in series with the two sets of LEDs. At least one set of LEDs is connected to a shunting transistor connected in parallel with the set of LEDs. The duty cycle of the shunting transistor is controlled by a single controller connected to the shunting transistor and the inductor.

Abstract: An LED bulb, which includes a shell, a filler material within the shell of the bulb, at least one type of phosphor dispersed inside the filler material and at least one LED within the shell.

Abstract: A multi-color white LED which can be driven by a single current, and more particularly, to the use of a specific ratio of numbers of different color LEDs to obtain a specific desired color while running all of them at the same current.

Abstract: A liquid-cooled LED bulb including a base and a shell connected to the base forming an enclosed volume. The liquid-cooled LED bulb also includes a plurality of LEDs attached to the base and disposed within the shell. The LED bulb also includes a thermally-conductive liquid held within the enclosed volume and a quantum dot material for adjusting the wavelength of light emitted from LED bulb.

Abstract: A light emitting diode (LED) bulb configured to scatter certain wavelengths of light. The LED bulb includes a base having threads, a bulb shell, at least one LED, and a plurality of particles disposed within the bulb shell. The plurality of particles has a first and second set of particles. The first set of particles is configured to scatter short wavelength components of light emitted from the at least one LED and has particles with an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED. The second set of particles is configured to scatter light emitted from the at least one LED, and has particles with an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED.

Abstract: An LED bulb includes a base, a shell connected to the base, one or more LEDs, a thermally conductive liquid, and a flexible diaphragm. The one or more LEDs are disposed within the shell. The thermally conductive liquid is held within the shell. The flexible diaphragm is in fluidic connection to the thermally conductive liquid, and is configured to deflect from a first position to a second position to compensate for expansion of the thermally conductive liquid.

Abstract: A liquid-cooled light emitting diode (LED) bulb which includes a base, a shell connected to the base forming an enclosed volume, and a plurality of LEDs attached to the base and disposed within the shell. The LED bulb also includes a volume of thermally-conductive liquid held within the enclosed volume. A scavenger element comprising a scavenger material is attached to the base and is exposed to the thermally-conductive liquid. The scavenger material is configured to capture contaminants in the thermally-conductive liquid.

Abstract: A circuit for driving multiple light emitting diodes (LEDs) includes at least two sets of LEDs, each set comprised of one or more LEDs in series. The circuit further includes a single inductor connected in series with the two sets of LEDs. At least one set of LEDs is connected to a shunting transistor connected in parallel with the set of LEDs. The duty cycle of the shunting transistor is controlled by a single controller connected to the shunting transistor and the inductor.

Abstract: A light-emitting diode (LED) bulb for use with a leading-edge dimmer includes a shell and an LED contained within the shell. A base is attached to the bulb for connecting the LED bulb to an electrical socket. A driver circuit is configured to provide current to the LED. The driver circuit has an input filter circuit that includes a first inductor. In response to the input filter receiving a switched AC voltage from a leading-edge dimmer set to dim at 50%, the first inductor is configured to saturate. In response to an undimmed AC voltage from the leading-edge dimmer, the first inductor is configured to not saturate. The input filter also includes a bridge rectifier connected to the first inductor.

Abstract: An LED bulb having bulb-shaped shell and thermally conductive fluid or gel within the shell. The bulb includes at least one LED within the shell. The bulb includes at least one LED within the shell and a base. The base can be configured to fit within an electrical socket and can include a series of screw threads and a base pin, wherein the screw threads and base pin are dimensioned to be received within a standard electrical socket. Alternatively, the base can be configured to fit within a suitable electric socket.

Abstract: A light-emitting diode (LED) bulb includes a base, a shell connected to the base, a thermally conductive liquid held within the shell, and one or more support structures disposed within the shell. One or more LEDs are mounted to the one or more support structures and immersed in the thermally conductive liquid. The one or more LEDs each comprise a semiconductor die having at least one light-emitting interface and the one or more LEDs configured to emit light from the at least one light-emitting interface directly into the thermally conductive liquid.