EFFORT TO EVOLVE A METHOD OF EYE PROTECTION FROM FLASH BLINDNESS.

Abstract

Photochromics of the spirobi(naphthopyran) classes are shown to give significant improvements over present spiropyrans when used in practical eye-protection systems. In particular, the open-state luminous transmittance of the total system was increased to 67% while still retaining the capability of closing to a luminous density of approximately 3 within 100 micro sec. The photobleaching by visible light was negligible even at intensities corresponding to a nuclear weapon range at which the aircraft and crew could not survive. The preparation of a variety of new photochromics and the necessary intermediates is described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1966
Accession Number
AD0645730

Entities

People

  • David B. Mcquain
  • Francis D. Thomson
  • Kenneth D. Glanz
  • Robert C. Bertelson

Organizations

  • NCR Corporation

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Blindness
  • Intensity
  • Nuclear Weapons
  • Transmittance
  • Visible Spectra
  • Weapons

Fields of Study

  • Physics

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Systems Analysis and Design
  • Vision Science/Vision Psychology/Cognitive Neuroscience.