Accession Number:

AD0165007

Title:

Polarized Light Source for Underwater Use.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s):

Report Date:

1973-07-03

Pagination or Media Count:

8.0

Abstract:

The patent relates to a circularly polarized underwater light source comprising a conventional unpolarized light source with a well-collimated output an efficient optical polarizer, which employs multilayer interference polarization, total internal reflection, birefringent quarter-wave plates and anti-reflection coatings a lens to control the extent of the divergence of the illuminating beam and an underwater housing with a dome-shaped window designed to withstand external hydrostatic pressures, part of the winding forming the lens.

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE