Accession Number : AD0892053

Title :   Experimental Optical Polarizer for Underwater Use.

Descriptive Note : Final rept. May 68-Feb 69,

Corporate Author : NAVAL UNDERSEA RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA

Personal Author(s) : Fugitt, R. Bruce

Report Date : FEB 1972

Pagination or Media Count : 28

Abstract : Although polarization techniques can be used to improve underwater visibility, commercially available absorption polarizers are only 21 to 37 percent efficient in converting unpolarized light to circularly polarized light. A free-flooded experimental polarizer that is approximately 57 percent efficient has been designed and tested. By changing to a non-flooded design, it should be possible to build future polarizers which are approximately 90 percent efficient. (Author)

Descriptors :   *POLARIZING FILTERS), (*UNDERWATER LIGHT, LIGHT TRANSMISSION, BACKSCATTERING, BIREFRINGENCE, POLARIZATION, REFLECTION, VISIBILITY.

Subject Categories : Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE