Accession Number : ADD007461

Title :   Automated Exposure--Contrast Control Index Meter.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Shreve,James S

Report Date : 26 Jun 1979

Pagination or Media Count : 26

Abstract : This invention pertains to an apparatus and method for determining a film development parameter and a camera exposure setting to compensate for the luminous dynamic range of a subject being photographed. In a semi-automatic embodiment, information corresponding to desired film densities for two areas of the subject matter is manually inputted to the apparatus, which is then pointed towards the two areas. In an automatic embodiment, information corresponding to desired film densities for the brightest and least bright areas of the subject to be photographed is manually inputted, the entire subject is automatically scanned by a vidicon or equivalent means, and the brightest and least bright areas of the subject are automatically detected. (Author)

Descriptors :   *Patent applications, *Photographic developers, *Automatic, *Scanning, Vidicons, Dynamic range, Photographic film, Luminescence, Contrast, Quality, Photographic recording systems, Military applications

Subject Categories : Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE