LED LIGHT WITH LIGHT FILTER DEVICE
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United States of America Patent
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Feb 18, 2021
app pub date -
Aug 11, 2020
filing date -
Mar 12, 2018
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Abstract
The present invention provides a lamp comprising: an LED light source; a lens comprising an incident surface and an emergent surface, the incident surface defining a first cavity, and the emergent surface comprising an annular protuberance thereon; and a light filter device accommodated within a space defined by the annular protuberance of the lens, wherein, the LED light source is situated within or proximate to the first cavity, to enable light emitted from the LED light source entering the lens from the incident surface and exiting the lens from the emergent surface to be at least partially transmitted through the light filter device.
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