LED LIGHT BULB WITH LIGHT-SHIELDING STRUCTURE
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Oct 18, 2011
filing date -
Jun 14, 2011
priority date (Note) -
Abandoned
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Abstract
A LED light bulb with a light-shielding structure is provided. The LED light bulb includes a bulb base (1), a transparent cover (2), a sensor (3) and a light-shielding barrel (4). The transparent cover (2) is fixed on a top of the bulb base (1). A lower end of the light-shielding barrel (4) is fixed on the bulb base (1). An upper end of the light-shielding barrel (4) is extended toward the transparent cover (2). The sensor (3) is disposed within the light-shielding barrel (4). By the light-shielding barrel (4), the light beam emitted by the LED light bulb can be effectively prevented from being directly projected onto the sensor, or the light beam reflected or refracted by the transparent cover (2) can be effectively prevented from being projected onto the sensor (3). Since the light beam emitted by the LED light bulb is not received by the sensor (3), the possibility of causing the erroneous operation of the sensor will be minimized, and the sensing accuracy and sensitivity of the LED light bulb will be enhanced.
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