Signal light using phosphor coated LEDs

Details Signal light using phosphor coated LEDs Signal light using phosphor coated LEDs

2011-04-05

2011-04-05

Alavi, Ali (Department: 2875)

Illumination

Plural light sources

Particular wavelength

C362S293000, C362S084000, C257S098000, C257S100000

Reexamination Certificate

active

07918582

ABSTRACT:
An improved signal light and method for making an improved signal light is disclosed. For example, the improved signal light includes a housing, at least one outer lens and at least one or more second type of light emitting diodes (LEDs) deployed in the housing. The at least one or more second type of LEDs includes a pump, a phosphor and a filter having a cutoff point less than or equal to 540 nanometers (nm). The at least one or more second type of LEDs also has a pump peak wavelength less than or equal to 430 nm and has a phosphor with a peak wavelength greater than 575 nm.

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