Abstract: A space efficient arrangement of at least one LED with a rectifying element and a current limiting element forms a compact module that can be powered using an AC voltage source.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.

Abstract: An illumination source configured to output light having a user-modifiable beam characteristic includes a LED light unit for providing a light output in response to an output driving voltage, a driving module for receiving an input driving voltage for providing the output driving voltage to the LED light unit, a heat sink coupled to the LED light unit for dissipating heat produced by the LED light unit and the driving module, a reflector coupled to the heat sink for receiving the light output, for outputting a light beam having a first beam characteristic, and a lens coupled to the heat sink for receiving the light beam having the first beam characteristic and for outputting a light beam having a second beam characteristic, wherein the lens is selected by the user to achieve the second beam characteristic, and wherein the lens is coupled to the heat sink by the user.

Abstract: An improved lighting system by increasing the effective brightness of a lighting source.

Abstract: A semiconductor device emitting light about a predetermined wavelength comprising a structure comprising a plurality of layers, sometimes referred to as a stack, providing low resistance, high reflectivity and ohmic contacts to at least one semiconductor material.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.

Abstract: A fuel injection nozzle for a gas turbine engine has a central fuel ejection nozzle and a plurality of airflow passages within the spray tip that include a first and second group of circumferentially spaced apart fuel-spray forming airflow passages disposed on opposite sides of a transverse axis and oriented towards each other such as to produce opposed fuel spray shaping air jets which generate a shaped final fuel spray.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.

Abstract: A light emitting apparatus includes a semiconductor layer having an electrode with two traces physically separated from one another. The light emitting apparatus further includes a wire bond electrically connecting the two traces.

Abstract: A light emitting semiconductor device comprising an LED having an emission aperture located on a surface of the LED and the emission aperture has a size that is smaller than a surface area of the LED where the emission aperture is formed. The device further includes a reflector surrounding both side walls, a bottom surface, and portions of a surface of the LED where the emission aperture is formed or surrounding the bottom surface and portions of the surface of the LED where the emission aperture is formed so that an area on the surface uncovered by the reflector is the emission aperture and is smaller than the area of the LED. Alternatively, in the light emitting semiconductor, the surface of the LED substantially aligned with the emission aperture may be roughened and the surface of the LED beyond the emission aperture may be smooth. The surface of the LED beyond the emission aperture may also be covered by a low loss reflector.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.

Abstract: A light emitting semiconductor device comprising an LED having an emission aperture located on a surface of the LED and the emission aperture has a size that is smaller than a surface area of the LED where the emission aperture is formed. The device further includes a reflector surrounding both side walls, a bottom surface, and portions of a surface of the LED where the emission aperture is formed or surrounding the bottom surface and portions of the surface of the LED where the emission aperture is formed so that an area on the surface uncovered by the reflector is the emission aperture and is smaller than the area of the LED. Alternatively, in the light emitting semiconductor, the surface of the LED substantially aligned with the emission aperture may be roughened and the surface of the LED beyond the emission aperture may be smooth. The surface of the LED beyond the emission aperture may also be covered by a low loss reflector.

Abstract: A light emitting device and method of producing the same is disclosed. The light emitting device includes a heterostructure having a plurality of light emitting diodes (LEDs) stacked one on top of another.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The structure comprises an LED configured to emit first and second polarized light, and a polarizing layer configured to pass a first polarized light and reflect the second polarized light back to the LED, wherein the LED is further configured to randomly scatter the second polarized light reflected from the polarizing layer and redirect the scattered light back to the polarizing layer.

Abstract: An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.

Abstract: A semiconductor device emitting light about a predetermined wavelength comprising a structure comprising a plurality of layers, sometimes referred to as a stack, providing low resistance, high reflectivity and ohmic contacts to at least one semiconductor material.