Abstract: An apparatus is provided for reflecting light, and includes a transparent tube having two end surfaces and a cylindrical side wall. A light source includes both an illuminating light beam and a tube holding member that holds at least one of the end surfaces close to the light source so that the light beam propagates through at least one of the end surfaces and then along the tube. A color light filter may be positioned between the light source and at least one end surface of the tube so that the color of the light beam is selectable. At least one opaque thin film strip is adhered to or etched into a minor portion of the circumference of the outer surface for reflecting a portion of the light beam transversely through the tube such that the portion of the light beam is visible along the side wall of the tube.

Abstract: An apparatus is provided for illuminating a fiber optic cable. A light source projects an illuminating light beam through a cold mirror placed at approximately a 45.degree. angle to the direction of the light beam, whereby a visible component of the light beam is reflected in a direction normal to the light beam while a heat component of the light beam is passed through the cold mirror. A heat sink absorbs the heat component of the light beam. A ventilation duct at the heat sink is also included to conduct convective heat away from the apparatus. A plano-convex lens focuses the light beam at a focal point in space. A conduit support is included to support the fiber optic cable in a position incident to the light beam.