Patent
Multi-reflector mechanism for a led light source
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TLDR
In this article, a multi-reflector mechanism for a LED light source was proposed, where the inner reflector is disposed within the outer reflector with the focuses of both reflectors being different points on a common axis.Abstract:
A multi-reflector mechanism for a LED light source which comprises a LED light source, an outer parabolic reflector, an inner parabolic reflector and a sliding switch, wherein the inner reflector is disposed within the outer reflector with the focuses of both reflectors being different points on a common axis, and the focus of the outer reflector being the highest one nearest to the plane of the opening of the outer reflector; and the LED light source is disposed within the inner reflector and protrudes out from the vertex of the inner reflector and is coaxially and adjustably disposed at or near the focus of the inner reflector or of the outer reflector, and the light emitting angle of the LED light source is larger than the angle formed by the two points on the edge of the opening forming the diameter thereof and the focus of the inner reflector. The present invention can emit a bright, sharp and wide spot of light at a shorter distance and, as an alternative by means of a sliding switch, a bright, sharp and small spot of light at a farther distance.read more
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References
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Patent
Led assembly for rear lamps in an automobile
TL;DR: In this paper, various techniques are described for combining two or more LEDs in a single reflective cavity for a rear lamp in an automobile. But none of the techniques are suitable for the use of the rear lamps.
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