Accession Number:

AD0645730

Title:

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

Descriptive Note:

Final technical rept., 1 Oct 65-31 Aug 66,

Corporate Author:

NATIONAL CASH REGISTER CO DAYTON OHIO FUNDAMENTAL RESEARCH DEPT

Report Date:

1966-08-31

Pagination or Media Count:

57.0

Abstract:

Photochromics of the spirobinaphthopyran 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

Subject Categories:

  • Radiation and Nuclear Chemistry
  • Protective Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE