Accession Number:

AD0260291

Title:

THE NEL SIZE-CONTRAST TEST FOR MEASURING VISUAL PERFORMANCE

Descriptive Note:

Corporate Author:

NAVY ELECTRONICS LAB SAN DIEGO CALIF

Personal Author(s):

Report Date:

1961-03-31

Pagination or Media Count:

1.0

Abstract:

Research concerns the development of a simple, portable field test and procedure for the evaluation of visual capabilities, using various optical and electronic transmission devices, under various atmospheric conditions. est results indicated the following 1 a portable, easily administered test was developed which can be used to derive standard visual threshold curves as a function of size and contrast 2 est scores obtained were predictable by standard visibility calculation procedures 3 test scores varied as a function of observation range and optical magnifications and 4 using the tests scores for the unaided eye as a basic reference, a visual efficiency index could be established for various optical and electronic image transmission devices. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE