LED light source
First Claim
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1. An improved light source providing increased control of lighting, the improved light source comprising:
- a plurality of light emitting diodes configured in an array;
a collector lens for capturing white light emitted from the diodes; and
a controller to selectively power groups of the plurality of light emitting diodes to provide different light beam patterns.
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Abstract
An LED light source having an array of LEDs provides increased control of a light beam pattern while providing increased service life. The LEDs are selectively powered to control the light beam pattern, including, for example, shape, size, intensity and direction of the light beam pattern. A controller may provide manual or automatic control of the light beam pattern to thereby adjust the illumination area.
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Citations
25 Claims
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1. An improved light source providing increased control of lighting, the improved light source comprising:
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a plurality of light emitting diodes configured in an array;
a collector lens for capturing white light emitted from the diodes; and
a controller to selectively power groups of the plurality of light emitting diodes to provide different light beam patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. In combination with a mobile passenger cabin, a plurality of light sources providing illumination within the mobile passenger cabin, each of the plurality of light sources comprising:
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a plurality of light emitting diodes configured in an array;
a collector lens for capturing white light emitted from the diodes; and
a controller to control the plurality of light sources and selectively power at least some of the plurality of light emitting diodes to provide different projected light beam patterns to illuminate specific areas within the mobile passenger cabin. - View Dependent Claims (15, 16, 17)
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18. A method of controlling lighting using a plurality of light emitting diodes arranged in an array, the method comprising the step of:
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selectively powering at least some of the plurality of light emitting diodes;
configuring a controller to control the pattern of a light beam produced by the selective powering of at least some of the plurality of light emitting diodes; and
controlling the light beam pattern using an aperture. - View Dependent Claims (19)
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20. A light source providing increased control of lighting, the light source comprising:
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a plurality of light emitting diodes configured in an array;
a collector lens for capturing white light emitted from the diodes; and
a controller to selectively power groups of the plurality of light emitting diodes to provide different light beam patterns selectable from a plurality of preprogrammed light beam patterns. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification