Focus compensation techniques for reconnaissanceTo maintain optimum resolution under varying environmental conditions, a focusing compensation system has been developed. The system is capable of detecting not only changes in pressure (altitude) and the general lens temperature but also the radial thermal gradients in the lens. Theoretical considerations show that the lens is most affected by these factors. The developed system uses a laser measurement system with environmental sensors to generate a focus correction for environment and range changes.
Document ID
19800033193
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mckeough, J. (U.S. Naval Material Command, Naval Air Development Center Warminster, Pa., United States)
Glavich, T. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena, Calif.; U.S. Naval Material Command, Naval Air Development Center Warminster, Pa., United States)