A space efficient system especially suited for use as an entirely self-contained stand-alone unit usable in any of multiple contexts where heating or cooling of a defined-volume or enclosure is required. The printing method uses a two-component reacting ink comprising a resin having a hydroxyl group, an isocyanate, a coloring agent containing a metal, and a -diketone. Preferably, the transparent layer of nitride UV is formed by deposition using an HDP process and has a thickness of less than about 500 \u212b. A casing that includes an insulating shell coupled to a metal shell. The height in the axial direction of the boundary portion changes in the circumferential direction and has a substantially mountain-like shape with a top projecting in the press fitting direction. The system further comprises an elongated member sized for insertion into an eye and for conducting the light produced by the laser light source.