Abstract: An optical fiber apparatus is disclosed for providing light to optical and other instruments from an auxiliary light source which may include a laser. A disclosed embodiment comprises a retinascope with a light source optically connected to a fiber optic bundle having its individual fibers aligned in the shape of a circle at its input end and in the shape of a rectangle at its output end. Ferrules hold and align the fibers at both ends. The light source may be a pulsed or continuous wave laser producing substantially monochromatic light, or any other suitable poly- or monochromatic light source. The retinascope includes a holder for supporting the output ferrule and the fiber bundle output.

Abstract: An improved helmet is provided including an optical system whereby the wearer may telescopically acquire an image of a field of view, which comprises a telescope retractably mounted to the helmet by means of a two-part hinged boom, one end of which is pivotally attached to the side of the helmet, and the other end of which supports the telescope via a rotatable and adjustable mounting whereby the telescope may be conveniently moved from a stored position beside the helmet to an operative position in front of the wearer's eye, and aligned and focused in the operative position.