LED device with enhanced light output
An enhanced light output light emitting diode (LED) is constructed using a plurality of single domed LEDs with each dome acting as a lens. By packaging multiple LEDs, each with its own dome (lens), greater-light output can be achieved. In one embodiment, each individually domed LED is a single color and the mixed colors from the group of LEDs within a device yields white light output. In another embodiment, the phosphors within each dome are mixed to produce white light. Reflectors can be added to enhance light output.
1 . A flash device comprising:
a substrate;
a plurality of individually domed LEDs mounted to said substrate; and
wherein said plurality of LEDs combine to provide light output upon application of a common pulse of energy to said plurality of domed LEDs.
2 . The flash device of claim 1 further comprising:
a thixotropic agent around said individual domed LEDs.
3 . The flash device of claim 1 further comprising:
a diffusant agent around said individual domed LEDs.
4 . The flash device of claim 1 wherein each of said individually domed LEDs produce white light output.
5 . The flash device of claim 1 wherein said individually domed LEDs are different colors, said colors combining under control of said common energy pulse to produce a desired output light color.
6 . The flash device of claim 5 wherein said desired output light color is white.
7 . The flash device of claim 5 wherein said different colors are red, blue and green.
8 . A LED device comprising:
a plurality of LEDs, each LED having an individual lens for directing light created by said LED; and
a control point for controlling light output from said plurality of LEDs as a single light event.
9 . The LED device of claim 8 further comprising:
a light reflector positioned around said LEDs to assist in directing light from said LEDs out of said LED device.
10 . The LED device of claim 8 wherein said single light event is a flash of light.
11 . The LED device of claim 10 wherein said single flash of light is white light.
12 . The LED device of claim 11 wherein said white light is created by a conversion of blue light within each said LED.
13 . The LED device of claim 11 wherein said white light is created by the combination of different colored light from said plurality of LEDs.
14 . The method of constructing a flash module, said method comprising:
positioning a plurality of LEDs, each with its own lens within the confines of a device; and
connecting energy input terminals to said plurality of LEDs.
15 . The method of claim 14 further comprising:
positioning around said plurality of LEDs a reflector for directing light from said LEDs toward a focal point of said LED.
16 . The method of claim 14 further comprising:
positioning diffusant agents around said plurality of LEDs.
17 . The method of claim 14 further comprising:
positioning thixotropic agents around said plurality of LEDs.
18 . The method of claim 14 wherein said connecting comprises connecting the energy input terminals for each LED in parallel.
19 . A camera comprising:
a flash device, said flash device comprising:
a plurality of LEDs having individual lens-through which light from said LED passes to the surface of said flash device; and
an input for receiving a pulse of energy for creating a flash of light focused from said plurality of LEDs.
20 . The camera of claim 19 further comprising:
means for creating different colors of said flash of light.
21 . A flash device comprising:
means for supporting a plurality of LEDs; and
means for individually focusing light output from each said LED.
22 . The flash device of claim 21 further comprising:
means for controlling the common enabling of light output from said plurality of LEDs.