Abstract: The disclosure concerns optical components comprising a polycarbonate-containing composition, the polycarbonate-containing composition comprising: about 95 wt % to about 99.6 wt % polycarbonate polymer; about 0.25 wt % to about 1 wt % silicon resin; about 0.05 wt % to about 0.5 wt % flame retardant; and about 0.1 wt % to about 0.5 wt % styrene-acrylonitrile copolymer coated polytetrafluoroethylene, wherein the polycarbonate-containing composition exhibits a VO rating at 0.75 mm as determined by the UL94 Flammability test, and wherein the total wt % of all components of the polycarbonate-containing composition does not exceed 100 wt %.

Abstract: A lighting apparatus includes a housing, an electroluminescent quantum dots (QD) unit as a light source, and an electrical component for providing electrical energy to the electroluminescent QD unit. The housing may be in the form of an incandescent bulb, a halogen bulb, a fluorescent tube or a panel. The electroluminescent QD unit includes a plurality of QDs printed on an insulating substrate. The substrate may be flexible so that the electroluminescent QD unit may be bent or curved to conform to the shape of an incandescent bulb, fluorescent tube or panel or a halogen filament so as to mimic these traditional light sources. Methods for retrofitting traditional or LED light fixtures with a lighting apparatus including an electroluminescent quantum dots (QD) unit as a light source are also described.

Abstract: An integrated substrate includes a substrate having a first surface and a second surface, and a light extraction layer disposed on the first surface of the substrate. The light extraction layer includes a polyimide having a glass transition temperature of greater than 200 to 350° C., and a plurality of nanoparticles, and the light extraction layer has a refractive index of 1.7 to 2.0. A method of manufacturing the integrated substrate is also disclosed, where the method includes applying the light extraction layer on the first surface of the substrate. An optical device including the integrated substrate is also described.

Abstract: An illumination device, comprising: a polymeric heat sink having a protrusion extending outward from the polymeric heat sink; a first printed circuit board having at least first and second surfaces opposing one another and being separated by a thickness of the printed circuit board, the first surface of the first printed circuit board supporting at least two light emitting diodes, the second surface of the first printed circuit board conforming to and being thermally coupled to the protrusion of the polymeric heat sink; a radiation-transmissive enclosure configured to at least partially enclose the first printed circuit board and the at least two light emitting diodes; a conductive path placing a light emitting diode into electrical communication with the environment exterior to the device.

Abstract: A lighting apparatus includes a housing, an electroluminescent quantum dots (QD) unit as a light source, and an electrical component for providing electrical energy to the electroluminescent QD unit. The housing may be in the form of an incandescent bulb, a halogen bulb, a fluorescent tube or a panel. The electroluminescent QD unit includes a plurality of QDs printed on an insulating substrate. The substrate may be flexible so that the electroluminescent QD unit may be bent or curved to conform to the shape of an incandescent bulb, fluorescent tube or panel or a halogen filament so as to mimic these traditional light sources. Methods for retrofitting traditional or LED light fixtures with a lighting apparatus including an electroluminescent quantum dots (QD) unit as a light source are also described.

Abstract: Various embodiments relate to a lens for omnidirectional illumination being rotationally symmetrical and including a light incident surface, a first refractive surface, a first reflective surface, a second refractive surface, and a third refractive surface. A first portion of light which passed through the light incident surface is refracted by the first refractive surface to produce first emergent light. A second portion of the light which passed through the light incident surface is reflected by the first reflective surface to the second refractive surface, and then is refracted by the second refractive surface to produce second emergent light. A third portion of the light which passed through the light incident surface is refracted by the third light refractive surface to produce third emergent light, the first emergent light, the second emergent light and the third emergent light jointly achieved omnidirectional illumination.

Abstract: Various embodiments relate to a heat radiation device for a heat source. The heat radiation device includes a body and a coating layer, wherein the body has a first section and at least one second section projecting from the first section, the first section has a mounting surface for mounting and thermally contacting with the heat source and the coating layer is applied on the surface other than the mounting surface of the first section and a surface of the at least one second section, wherein the coating layer has higher thermal dissipation performance than the body. In addition, various embodiments further relate to an illuminating device having the above type of heat radiation device.

Abstract: Various embodiments relate to a lens for omnidirectional illumination which is rotationally symmetrical and includes a light incident surface, a first light refractive surface, a first light reflective surface, and a second light refractive surface designed to be rotationally symmetrical, respectively. The second light refractive surface is defined by a Bezier curve in a cross section, a first portion of light through the light incident surface is refracted by the first light refractive surface, a second portion of the light through the light incident surface is reflected by the first light reflective surface to the second light refractive surface, and then is refracted by the second light refractive surface, a third portion of the light through the light incident surface is refracted by the second light refractive surface, to produce first, second and third emergent lights, respectively. The first, second and third emergent lights jointly achieve omnidirectional illumination.

Abstract: Various embodiments relate to a lens for omnidirectional illumination being rotationally symmetrical and including a light incident surface, a first refractive surface, a first reflective surface, a second refractive surface, and a third refractive surface. A first portion of light which passed through the light incident surface is refracted by the first refractive surface to produce first emergent light. A second portion of the light which passed through the light incident surface is reflected by the first reflective surface to the second refractive surface, and then is refracted by the second refractive surface to produce second emergent light. A third portion of the light which passed through the light incident surface is refracted by the third light refractive surface to produce third emergent light, the first emergent light, the second emergent light and the third emergent light jointly achieved omnidirectional illumination.

Abstract: Various embodiments relate to a heat radiation device for a heat source. The heat radiation device includes a body and a coating layer, wherein the body has a first section and at least one second section projecting from the first section, the first section has a mounting surface for mounting and thermally contacting with the heat source and the coating layer is applied on the surface other than the mounting surface of the first section and a surface of the at least one second section, wherein the coating layer has higher thermal dissipation performance than the body. In addition, various embodiments further relate to an illuminating device having the above type of heat radiation device.