Patent ID: 7740378

Claim:
A system for supporting and cooling, the system comprising: a housing; a light source in the housing; a reflector in the housing adjacent to the light source, the reflector directing light from the light source away from the reflector and along an optical light path; a toroidal structure in the housing adjacent to and downstream of the reflector along the optical light path, the toroidal structure supporting at least one optical element; the toroidal structure having a first central aperture in the opening of the toroidal structure through which light from the light source may pass through along the optical light path and in which at least one optical element is supported; a plurality of second apertures formed around the outside periphery of the toroidal support structure and piercing through the toroidal structure to the inner periphery of the toroidal support structure to the first central aperture; the plurality of second apertures being formed at least partially through the toroidal structure at angles other than substantially perpendicular to the outside periphery of the toroidal structure, wherein the angled apertures cause cooling fluid passing through the aperture to swirl across the central aperture to assist in cooling the at least one optical element; and at least one fan downstream of the toroidal structure to move cooling fluid through the toroidal structure, across the central aperture, and through the fan to outside the housing.