SIGNAL LIGHT USING PHOSPHOR COATED LEDS
First Claim
1. A signal light comprising:
- a housing;
a filter;
at least one outer lens; and
at least one or more light emitting diodes (LEDs) deployed in said housing, wherein said at least one or more (LEDs) are made of Indium Gallium Nitride (InGaN) and have a perceived color via a blue LED that is coated with a phosphor, wherein a light of the at least one or more LEDs is filtered by the filter such that a blue light is absorbed and a yellow light passes.
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Accused Products
Abstract
A method for creating an improved signal light is disclosed. For example, the improved signal light includes a housing, one or more first type of light emitting diodes (LEDs) emitting a light energy having a first dominant wavelength deployed in the housing, one or more second type of LEDs emitting a light energy having a second dominant wavelength deployed in the housing, a filter and a mixer. The filter may filter the light energy of the one or more second type of LEDs such that only a third dominant wavelength passes from the one or more second type of LEDs. The mixer may mix the light energy having the first dominant wavelength and the filtered light energy having the third dominant wavelength to form a light energy having a desired fourth dominant wavelength.
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Citations
11 Claims
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1. A signal light comprising:
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a housing; a filter; at least one outer lens; and at least one or more light emitting diodes (LEDs) deployed in said housing, wherein said at least one or more (LEDs) are made of Indium Gallium Nitride (InGaN) and have a perceived color via a blue LED that is coated with a phosphor, wherein a light of the at least one or more LEDs is filtered by the filter such that a blue light is absorbed and a yellow light passes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of creating a signal comprising:
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providing a housing; providing a filter; providing at least one outer lens; and providing at least one or more light emitting diodes (LEDs) deployed in said housing, wherein said at least one or more (LEDs) are made of Indium Gallium Nitride (InGaN) and have a perceived color via a blue LED that is coated with a phosphor, wherein a light of the at least one or more LEDs is filtered by the filter such that a blue light is absorbed and a yellow light passes.
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Specification