| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sensor built-in LED bulb in which a sensor function is built. <P>SOLUTION: The sensor built-in LED bulb includes an LED module 3 in which a plurality of LEDs 11 are surface mounted on a doughnut type substrate 5 and a sensor module 15 having a human sensor and a brightness sensor arranged in a center hole 7 of the substrate 5, and has a sensor function integrally on the lighting fixture side. Since LED light has characteristics to advance straight on, the brightness sensor does not incorrectly sense the LED light as daylight. Furthermore, if the human sensor is arranged in the center of the LED group 11, it can aim the sensing region at the irradiation region of the LED group 11, thereby, reliability of sensor information can be improved. <P>COPYRIGHT: (C)2012,JPO&INPIT |
