Accession Number : ADD012455

Title :   Laser Eye Protection Visor Using Multiple Holograms.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Moss,Gaylord E

Report Date : 22 Jul 1986

Pagination or Media Count : 5

Abstract : This patent discloses a diffractive radiation shield for protecting eyes and radiation sensitive devices from laser radiation. The shield utilizes one or more holograms disposed on transparent substrates. These holograms consist of spherical holographic fringes recorded in a dischromated gel with which the substrates are coated. The holographic fringe reflect laser radiation which is normal to their respective surfaces. Reflectivity is maximized for a particular wavelength by proper selection of the fringe spacing. The shield may be configured as a visor for an aviatior's helmet.

Descriptors :   *PATENTS, *PROTECTIVE EQUIPMENT, *VISORS, *EYE, *LASER SAFETY, HOLOGRAMS, GRATINGS(SPECTRA)

Subject Categories : Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE