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US 2014/0369060 A1Published application
LED Signal Lamp
OwnerWenhu Zhanginventor
Life of this patent
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Abstract
An LED signal lamp which includes at least one white LED illumination unit, and at least one light filter each is provided in a light path of each of the white LED illumination unit for filtering at least one portion of light beams of the white LED illumination unit to provide nonwhite light beams of a predetermined color. Thus colored signal lamp is provided via white LED illumination units, the light efficiency is enhanced, the structure is simple, and the manufacturing costs are low.
Claims32
1-28. (canceled)
An LED signal lamp, comprising:
- at least one white LED illumination unit, and
- at least one light filter each is provided in a light path of each of said white LED illumination unit for filtering at least one portion of light beams of said white LED illumination unit to provide non-white light beams of a predetermined color.
A method of manufacturing an LED signal lamp, comprising the following steps:
- (a) projecting white light beams via at least one white LED illumination unit;
- and
- (b) filtering at least one portion of the white beams to harvest non-white light beams.
An LED signal lamp, comprising:
- at least one LED member serving as a light source, wherein each of said LED members comprises at least one white LED illumination unit, wherein said white LED illumination unit is packaged in the corresponding LED member in such a manner that light beams projecting out from said LED member are light beams of a predetermined color other than white, so that said LED signal lamp is capable of providing desired colored light beams.
Dependencies are inferred from the claim text.