Accession Number : ADA112305

Title :   Laser Eye Protection.

Descriptive Note : Final rept. 11 Aug 77-Jun 79,

Corporate Author : HUGHES AIRCRAFT CO EL SEGUNDO CA DISPLAY SYSTEMS LAB

Personal Author(s) : Johnson,Kenneth C ; Moss,Gaylord E

PDF Url : ADA112305

Report Date : Jul 1979

Pagination or Media Count : 42

Abstract : A design for a narrow-band diffractive radiation shield to be fabricated on a helmet visor has been developed and tested. An experimental feasibility study indicates that 99.9% shielding of a specified laser wavelength may be achieved with a visor positioned on the order of 7 cm from the eye (Photopic transmittance is expected to exceed 90%.) Several technical obstacles remain to be overcome before a full-scale workable prototype can be constructed, but shielding efficiencies far better than the 99.9% demonstrated value may become possible as the technology develops. (Author)

Descriptors :   *Protective mask facepieces, *Visors, *Protective equipment, *Eye, Shielding, Diffraction, Narrowband, Optical analysis, Prototypes, Test and evaluation, Measurement, Transmissivity, Laser materials, Fabrication, Feasibility studies

Subject Categories : Safety Engineering
      Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE