ESSA Professional Paper

ESSA Professional Paper
Author: United States. National Oceanic and Atmospheric Administration
Publisher:
Total Pages: 472
Release: 1972
Genre:
ISBN:

Special Report

Special Report
Author: Smithsonian Astrophysical Observatory
Publisher:
Total Pages: 626
Release: 1968
Genre: Artificial satellites
ISBN:

Two Approaches to a Portable Color-measuring System

Two Approaches to a Portable Color-measuring System
Author: Kenneth D. Robertson
Publisher:
Total Pages: 40
Release: 1966
Genre: Cadmium compounds
ISBN:

Two approaches to color measurement are presented, the spectrophotometer and the reflectometer. Descriptions are given of two portable instruments, one of each type. The first instrument was built using a flashlight lamp as light source, a wedge interference filter as monochrometer, and a cadmium sulphide photoresistor as a detector. The second instrument was built with three filters which provided the tristimulus curves of the CIE standard observer, a flashlight lamp, and three barrier layer cells as detectors. (Author).