Patent ID: 7848035

Claim:
An optical assembly releasably mountable to a light delivery apparatus comprising at least one heat dissipating surface, the optical assembly comprising: an output optical element comprising a thermally conductive and optically transmissive material; a thermal conduit in thermal communication with the output optical element and comprising at least one surface configured to be in thermal communication with the at least one heat dissipating surface; and a coupling portion configured to be placed in at least two states comprising: a first state in which the coupling portion is attached to the light delivery apparatus such that the at least one surface of the thermal conduit is in thermal communication with the at least one heat dissipating surface of the light delivery apparatus; and a second state in which the coupling portion is detached from the light delivery apparatus after having been attached to the light delivery apparatus in the first state and in which the coupling portion is configured to prevent re-attachment of the coupling portion to the light delivery apparatus.