Accession Number : ADD015193

Title :   Optical Proximity Detector.

Descriptive Note : Patent, Filed 24 Jun 83, patented 12 Feb 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Smith, Paul J

Report Date : 12 Feb 1991

Pagination or Media Count : 9

Abstract : Method and apparatus for optically detecting an object within close proximity to a structure surface, e.g., the nose of a torpedo or claw of a robotic arm, and generating a responsive control or command signal. A cone of light is emitted from the structure surface to illuminate any object coming within its field. Light reflected from that object to a receiver is processed to generate a responsive first electrical signal. This first signal is further processed to generate a second signal, control or a command signal, only after the first signal has decreased to around 30% of its peak level indicating that the object has closed to within a predetermined distance to the structure surface. (Author)

Descriptors :   ARMS(ANATOMY), CONICAL BODIES, ELECTRICITY, LIGHT, NOSES, PEAK VALUES, ROBOTICS, SIGNALS, SURFACES

Subject Categories : Optical Detection and Detectors
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE