Accession Number:

AD0292164

Title:

PROBLEMS OF PHOTOGRAPHIC SPECTROPHOTOMETRY OF SHORT DURATION LIGHT PULSES: GRANULARITY, RECIPROCITY FAILURE, AND LATENT IMAGE STABILITY

Descriptive Note:

Corporate Author:

ROCHESTER UNIV N Y INST OF OPTICS

Personal Author(s):

Report Date:

1962-08-31

Pagination or Media Count:

1.0

Abstract:

Refinements in the technique of measuring granularity and data on the granularity of specific film-developer combinations are presented. A question concerning the shape of the granularity curve appears to have been definitively answered. A rotating mirror optical system has been developed with precise photometric controls for determination of photographic reciprocity failure at high intensity, covering exposure times to 10 to the 8th power seconds. A special underwater arc light source developed for use in this systemis described. The experimental requirements for observing latent image stability and data on the characteristics of three panchromatic emulsions are presented. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE