Accession Number:

ADA167848

Title:

A Portable Subject Controlled Night Vision Adaptometer.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA

Report Date:

1985-11-01

Pagination or Media Count:

15.0

Abstract:

This report describes a new adaptometer which was designed at this Institute for assessing night vision parameters of the military population at field sites, and to quantify the effects of extended exposure to high altitude. The instrument is based on a previously developed concept of dark adaptation measurement in which the subject continually adjusts the threshold luminance of a recurrently flashing stimulus. This device, however, represents a modernized version of the technique which employs computerized data translation. It also offers the advantages of rugged construction and field portability. The instrument has functioned reliably in field conditions, and has generated valid dark adaptation functions on soldier test subjects in use at the USARIEM High Altitude Test Facility, Pikes Peak, Colorado. Keywords adaptometer, brightness sensitivity, visual performance.

Subject Categories:

  • Anatomy and Physiology
  • Air Conditioning, Heating, Lighting and Ventilating
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE