Patent ID: 8294389
Filing Date: 2012-10-23
Classification: F21S,F21W,F21Y,G05D,H05B

Abstract:
1. A liquid motion lamp comprising: a container; a first liquid suitable for residing in the container; a second liquid residing in the container and forming a heterogenous mixture with the first liquid, wherein: a base, at least a portion of which is below the container; a heat source heating the second liquid; a high efficiency non-incandescent light source residing within the base and projecting light into the container to illuminate the liquids, the high efficiency light source providing an insignificant amount of heat to the second liquid; a temperature sensor measuring the temperature of at least one of the second liquid and of an ambient temperature in the area the lamp is located; and a control circuit receiving temperature measurements from the temperature sensor and controlling the power provided to the heat source to affect the temperature of the liquids in the container.