Patent ID: 7909481

Claim:
An LED light bulb, comprising: a base member; one or more light emitting diodes mounted on the base member and in thermal communication with the base member, wherein the one or more light emitting diodes are configured to emit light under the control of an electrical signal; and a top-mount member in thermal communication with the base member, wherein the top-mount member comprises a reflective surface configured to reflect the light emitted by the one or more light emitting diodes in predetermined directions, wherein the top-mount member comprises one or more cooling members configured to dissipate heat generated by the one or more light emitting diodes to the ambient environment, wherein the cooling member includes walls protruding out of the top-mount member, wherein the walls are spiral shaped or in the form of concentric circles, the walls being configured to dissipate heat generated by the one or more light emitting diodes to the ambient environment.