sponsored by the Optical Society of America in cooperation with Society of Photo-Instrumentation Engineers. John C. Urbach, editor ; presented by the Optical Society of America, in cooperation with the Society of Photo-Optical Instrumentation Engineers. Irving J. Spiro, editor ; presented by the Society of Photo-optical Instrumentation Engineers. Proceedings of the society of photo-optical instrumentation Engineers ; The Office of Naval Research and the Society of Photo-Optical Instrumentation Engineers. sponsored by the Lasers and Electro-Optics Society of the IEEE, Optical Society of America in cooperation with Society of Photo-Optical Instrumentation Engineers. Proceedings of the Society of Photo-optical Instrumentation Engineers ; Proceeding of the Society of Photo-optical Instrumentation Engineers ; Proceedings of the Society of Photo-Optical Instrumentation Engineers Proceedings of the Society of Photo-Optical Instrumentation engineers ;