Accession Number:

AD0755406

Title:

Glass Ocular Laser Protective Filters

Descriptive Note:

Final rept. 1 Apr 1971-1 Aug 1972

Corporate Author:

AMERICAN OPTICAL CORP SOUTHBRIDGE MA RESEARCH DIV

Personal Author(s):

Report Date:

1972-10-01

Pagination or Media Count:

35.0

Abstract:

The report describes a research study to develop a filter material with an optical density of 4 or greater at 0.694, 1 to 6, and 6 to 10.6 micrometers, but maintaining a luminous transmittance of 50 or better. Prime emphasis was placed on meeting or exceeding the luminous transmittance requirement wherein lies the major benefits as well as the major technical problems. The research included an investigation of the effect on spectral properties of glass compositions prepared with CuO, FeO, rare-earth oxides, various host glass ingredients and various melt conditions either singly or in combination. The 0.694 micrometer requirement was deleted following a review of the above research program. Melt conditions and composition were finalized for 5-7 kg sized melts and enough melts were made to fabricate 50 pairs of spectacles and 10 plates 6 in. x 6 in. from this material. The spectacles had an optical density greater than 4 at the desired wavelengths and a luminous transmittance greater than 60.

Subject Categories:

  • Lasers and Masers
  • Protective Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE