摘要:
The present invention is embodied in a radial light-emitting diode (“LED”) lamp in a flat printed circuit hoard (“PCB”) form factor. In one embodiment, the LED lamp comprises a single, two-sided PCB having one or more LEDs on each side of the PCB. Each LED is encapsulated within a casing generally shaped as a linear dome or half cylinder having an axis. The casing may be a substantially homogenous, molded phosphor mixture that emits light upon exposure to the electromagnetic radiation emitted by the LED inside the casing. Because of phosphorescence and surface reflections in the casing, each LED emits light through an angle greater than 180 degrees transverse to the axis of the casing.
摘要:
A lighting apparatus includes a light source module and a heat dissipation module. The light source module emits light and generates heat. The heat dissipation module dissipates at least a portion of the heat, and includes a base portion to which the light source module is physically coupled. The heat dissipation module also includes a plurality of heat dissipation fins. At least two of the fins that are immediately adjacent to one another form an air channel having a first opening and a second opening between the at least two of the fins. The air channel has a generally decreasing cross-sectional area with respect to air rising up the air channel in a generally vertical direction with respect to a horizontal plane as the air enters the air channel through the first opening and exits the air channel through the second opening.
摘要:
A lighting apparatus includes a light source module and a heat dissipation module. The light source module emits light and generates heat. The heat dissipation module dissipates at least a portion of the heat, and includes a base portion to which the light source module is physically coupled. The heat dissipation module also includes a plurality of heat dissipation fins. At least two of the fins that are immediately adjacent to one another form an air channel having a first opening and a second opening between the at least two of the fins. The air channel has a generally decreasing cross-sectional area with respect to air rising up the air channel in a generally vertical direction with respect to a horizontal plane as the air enters the air channel through the first opening and exits the air channel through the second opening.
摘要:
Multiple groups of optical fibers are laid in concentric helical layers around a central core. A first layer is wound or laid around the core with adjacent lap segments touching each other, thus eliminating axial spacing between the lap segments along the core. The next group contains a greater number of optical fibers and is helically laid around the first layer, with adjacent lap segments touching each other. This winding process is continued, with the number of optical fibers in each successive winding group progressively increasing until a desired cable diameter is obtained. Improved surface uniformity is provided by laying the helical layers with a reversed direction of lay and with increased length of lay in each successive layer. According to another arrangement, improved luminosity is provided by laying the helical layers with reversed direction of lay and with the same length of lay in each successive layer. Additionally, a tighter (relatively dense) packing of fiber is provided by laying the helical layers with the same direction of lay and with the same length of lay for each successive layer.
摘要:
A light cover and an illuminating apparatus applying the same are provided. The illuminating apparatus comprises the light cover and a plurality of light sources. The light cover comprises a substrate provided with a plurality of recesses on a front surface and a plurality of lenses integrated with the substrate and respectively located in the recesses. The lenses are oriented in a same direction. The light sources are disposed corresponding to the lenses. Each of the light sources is adapted to emit a light. Each of the lenses is adapted to receive the light and transform the light into a predefined light output.