Lighting device and luminaire
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United States of America Patent
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Jun 12, 2018
Issued Date -
N/A
app pub date -
Sep 19, 2014
filing date -
Oct 12, 2013
priority date (Note) -
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Abstract
In various embodiments, disclosed is a lighting device comprising a bulbous body mounted on a cap, and an inner surface of the bulbous body comprising a plurality of steps that are axially displaced relative to each other along a central axis of the lighting device. The plurality of steps comprising in one example a first step supporting a first plurality of solid state lighting elements; and a second step supporting a second plurality of solid state lighting elements, wherein the first step is located in between the cap and the second step. A luminaire including such a lighting device is also disclosed. The lighting device may further comprise a bulbous member separated from the cap by a transparent member having a stepped wall profile including the first step and the second step.
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