HIGH ILLUMINATION LED BULB WITH FULL EMISSION ANGLE
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United States of America Patent
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-
Dec 4, 2012
Grant Date -
Dec 13, 2012
app pub date -
Jun 7, 2011
filing date -
Jun 7, 2011
priority date (Note) -
Granted
status (Latency Note)
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Abstract
A high illumination LED bulb includes a transparent lamp holder and a transparent reflective envelope having an inner face coated with a reflective membrane having light transmittance characteristic. A chamber is defined between the transparent lamp holder and the transparent reflective envelope and receives an actuator, a radiator and a light emitting module electrically connected to the actuator. The light emitting module includes a substrate disposed on the radiator and at least one LED disposed on the substrate. Light radiated from the LED is transmitted to produce superior projection beam by the transparent reflective envelope and reflected to produce inferior projection beam by the reflective membrane. Reflected halo formed by projection of the superior projection beam and the inferior projection beam on the transparent lamp holder and the transparent reflective envelope can form side projected halo, thereby radiating light with a full emission angle.
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