Patent ID: 9028090
Filing Date: 2015-05-12
Classification: F21K,F21V,F21Y,H01L,H05B,Y02B

Abstract:
1. An LED lamp comprising: a light source including at least one LED chip; a translucent cover for housing the LED chip and allowing light from the LED chip to pass through; a motion sensor unit including a light receiving element for receiving light of a predetermined wavelength, and a condensing lens for condensing light, of the predetermined wavelength onto the light receiving element; and a power unit, for controlling a state of operation of the LED chip based on an output, from the motion sensor unit; wherein the motion sensor unit includes a light shielding member that is disposed to overlap the light receiving element in an optical axis direction of the condensing lens and arranged to surround the light receiving element as viewed in the optical axis direction, the light, shielding member being made of a material having a lower light transmissivity than that of the condensing lens for a range of wavelengths including the predetermined wavelength.