Abstract: The invention relates to space engineering, and can be used for space radio, television and telephone communications, as well as illuminating ground objects at night from space. The inventive unfolding film-type radiation reflector comprises a framework consisting of pneumatic tubes and cells, a film reflecting surface connected to the framework along the perimeter thereof and a gimbal assembly mountable on a space vehicle. The internal and external frames of the gimbal assembly are made from internal and external wheel-shaped pneumatic tubes. The internal wheel-shaped pneumatic tube is embodied in such a way that it is mountable on the space vehicle, while the external wheel-shaped pneumatic tube is embodied in the form of a framework element and is connected to the film reflecting surface. Said invention makes it possible to reduce the mass and overall dimensions of mechanisms for packing and unfolding the film-type radiation reflector.

Abstract: A system for lighting an object has a radiation source, a first guidance device optically connected to the object, a second guidance device and a first subtracting amplifier in communication with the first guidance device. The first subtracting amplifier has inputs and at least one output. A second subtracting amplifier is in communication with the first and second guidance devices. A commutation unit is in communication with the first and second guidance devices and the first and second subtracting amplifiers. First, second, third and fourth actuators are in communication with the commutation unit. A first mirror is in communication with and controlled by the first and second actuators and a second mirror is in communication with and controlled by the third and fourth actuators. The first and said second mirrors are controlled by the actuators so that the system can light an object by reflecting the radiation source.