Accession Number:

ADA058657

Title:

A Study of the Durability of Glasses, Sun, N-1, Contract Number NXsX-66844. M and S Research Project Number X-583 (Av-301-p),

Descriptive Note:

Corporate Author:

NAVAL MEDICAL FIELD RESEARCH LAB CAMP LEJEUNE N C

Personal Author(s):

Report Date:

1945-08-27

Pagination or Media Count:

15.0

Abstract:

Ninety-six pairs of sunglasses were issued to enlisted Marine Corps personnel for general field use at Camp Lejeune, N.C. The men were instructed to wear the glasses as much as possible while they carried on their regular training activities in bivouac areas. The glasses were examined every week. The scratches on the plastic filters were rated, breaks and fractures noted, and the comments of the subjects recorded. After seven weeks of use 48 percent of the glasses issued were rejected for further use because of the extensive damage. Rejection was determined by a double criterion 1 unwillingness of the subject to wear them longer, and 2 rejection rating by the experimenters. No pair of glasses was rejected unless it met both of these criteria. Twenty-three percent of the glasses were still in use, although 91 percent of these were severely scratched. Twenty-one percent had been lost, and eight percent were on hand.

Subject Categories:

  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE