Patent ID: 8132933
Filing Date: 2012-03-13
Classification: F21K,F21S,F21V,F21Y

Abstract:
1. A blackout light bulb comprising: a housing having an illumination end base end; an Edson screw connected to the base end of the housing for screwing into a light fixture socket; a plurality of spaced apart LEDs mounted to the illumination end of the housing; a flexible stalk having a first end connected to the housing at a location between the illumination end and the base end of the housing, the flexible stalk having an opposite free end and being bendable into and holding a selected shape for positioning the free end at a selected location with respect to the illumination end of the housing; a circuit board mounted in the housing; an electronic circuit mounted to the circuit board and electrically connected to the Edison screw for receiving AC power from the Edison screw when a light fixture socket to which the Edison screw is screwed is being supplied with AC power; a rechargeable battery mounted in the housing and electrically connected to the circuit board, the circuit having a plurality of operating modes, at least one of said modes being for supplying electrical power for charging the battery and at least one of said modes being for supplying electrical power from the battery to the circuit; a photo cell mounted at the free end of the stalk and electrically connected to the circuit for sending a first signal to the circuit under a first high ambient light condition, a second signal to the circuit under a second intermediate ambient light condition, and a third signal to the circuit under a third low ambient light condition; and the circuit including components for executing: