Abstract: The solar simulator of the invention comprises a source of high intensity light simulating as closely as possible the spectral radiance of the sun directed through a flexible optic light guide into a chamber and pressure sealed through a chamber wall where this light is then directed on to a test specimen in a column or otherwise. The high intensity light is provided by one or more illuminating sources which can be positioned at the distal end or ends of the fiber optics or embedded within a fiber or liquid optic core.

Abstract: A point focus solar concentrator which uses various geometries of cylindrical reflector strips some of which are tilted to simulate a point focus by overlaying the line focii of each segment at a coincident point. Several embodiments of the invention are disclosed that use cylindrical parabolic, cylindrical hyperbolic or flat reflector strips to concentrate incident solar energy for use by a solar dynamic engine located at the focal point. Also disclosed is a combined photovoltaic/solar dynamic engine concentrator energy system that uses this arrangement of mirrors.

Abstract: A suspension and drive system for a mechanical microwave power divider for spacecraft applications. The mechanical power divider includes a control which extends longitudinally therethrough. Torsion springs connect each end of the control rod to fixed surfaces and an electromagnetic control is coupled to the control rod to rotate it to a predetermined angular position. A selectively energizeable friction brake surrounds at least a portion of the control rod for holding it in a predetermined angular position.