Accession Number : ADD013401

Title :   Method of Measurement of Haze in Transparencies.

Descriptive Note : Patent, Filed 2 Feb 83, patented 18 Aug 87,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Task, Harry L ; Genco, Louis V

Report Date : 18 Aug 1987

Pagination or Media Count : 5

Abstract : A method of measuring haze of an aircraft transparency includes producing a first reading representative of the level of light scattered by an area of a transparency under test while on the aircraft when it is illuminated by a known light source, and producing a second reading representative of the level of light scattered by a predetermined, preferably worst haze condition, reference plate when it is illuminated by the light source in place of the transparency. Then, a ratio of the first and second readings is calculated to provide a quantitative measure proportional to the degree of haze in the transparency test area.

Descriptors :   *HAZE, *TRANSPARENCIES, *PATENTS, AIRCRAFT, LIGHT, LIGHT SOURCES, MEASUREMENT, RATIOS, READING, TEST FACILITIES

Subject Categories : Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE