Abstract

Discussed are the specifications for a Photometric Standard of Hard Dot Area. Mathematical approximations have determined the desired pattern and frequency to be; cross hatch and 100 lines/in. respectively. When measuring the Photometric Standard, deviation from the actual area is attributed to micromotion in the aperture and diffraction in the Densichron 3885d (Sargent - Welch Scientific Co.). The desired specifications in the Photometric Standard allow precise measurements of ± 5% area. A Hard Dot Area Meter was designed and constructed, which simulates a photometric method that theoretically eliminates deviation from the actual area measured. It was statistically tested against microscopic measurements of the Photometric Standard.

Library of Congress Subject Headings

Photomechanical processes

Publication Date

5-22-1972

Document Type

Thesis

Advisor

H. Brent Archer

Comments

Physical copy available from RIT's Wallace Library at TR925 .M47 1972

Campus

RIT – Main Campus

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