Patent ID: 8982317
Filing Date: 2015-03-17
Classification: G03B,G03F

Abstract:
1. A heat sink configured to transfer heat away from an actuator coil, the actuator coil including a plurality of windings arranged into first and second portions with the first portion including at least one first winding located in a first plane and the second portion including at least one second winding located in a second plane different than the first plane, the heat sink comprising: an elongated heat transfer element including a ring situated between first and second arms, wherein the ring is sandwiched between the at least one first winding of the first portion of the actuator coil and the at least one second winding of the second portion of the actuator coil, wherein the first arm outwardly extends from the ring in a first direction and the second arm outwardly extends from the ring in a second direction, wherein the first direction is different than the second direction; a first cooling surface proximate to the first arm of the elongated heat transfer element and to the actuator coil, the first cooling surface being configured to transfer heat from the elongated heat transfer element to a first area external to the actuator coil; and a second cooling surface proximate to the second arm of the elongated heat transfer element and to the actuator coil, the second cooling surface being configured to transfer heat from the elongated heat transfer element to a second area external to the actuator coil.