Accession Number : ADD007528

Title :   Plating Area Calculator for Printed Circuit Boards.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Baker,Raymond J

Report Date : 29 Jan 1980

Pagination or Media Count : 16

Abstract : A method and apparatus is disclosed for calculating the relative areas of a photographic image or other object which transmits light to relatively different degrees. The technique generally comprises passing light through distinct portions of the image or object and measuring the degree to which the respective portions transmit light. The number of portions which are highly transmissive is compared to the number of portions which are relatively non-transmissive, thus giving a numerical indication of the relative areas of the transmissive and opaque portions of the image or object. (Author)

Descriptors :   *Patent applications, *Transmissometers, *Calculators, Photographic images, Printed circuit boards, Plating, Opacity, Transmittance

Subject Categories : Coatings, Colorants and Finishes
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE