Bulb-type light source
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United States of America Patent
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Sep 19, 2023
Grant Date -
Apr 20, 2023
app pub date -
Dec 16, 2022
filing date -
Nov 20, 2017
priority date (Note) -
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Abstract
A lighting device includes a substrate having a plurality of flat portions and a non-flat portion disposed between the flat portions, a plurality of light emitting sources disposed on the substrate, a fluorescent substrate layer covering one or more light emitting sources and converting a wavelength of a light from the light emitting source, and a connection line disposed on the substrate and electrically connecting the light emitting sources adjacent to each other between the adjacent light emitting sources. The substrate has a first end and a second end are arranged at different distance from a central axis.
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