Accession Number : ADD001298

Title :   Multi-Purpose Real-Time Holographic Polariscope.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Sanford,Robert J

Report Date : 27 Apr 1974

Pagination or Media Count : 5

Abstract : The patent discloses a modification of a real-time holographic interferometer to permit the observation of a complete set of interference patterns from a single reference hologram. The apparatus consists of a conventional off-axis transmission holographic set-up with the addition of several polarization optical elements to alter the polarization of the light at various stages of a procedure to study an object. These elements are adjusted so as to produce circularly polarized light for recording the reference hologram. After producing the hologram these elements are readjusted to any desired state of polarization and the corresponding interference pattern is observed in real-time and may be changed at any time to view a different type of interference pattern.

Descriptors :   *Polariscopes, *Holography, *Patents, Interferometry, Birefringence, Measuring instruments, Real time

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE