Microdensitometer for Photographic Research
- 1 December 1956
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 27 (12) , 1033-1036
- https://doi.org/10.1063/1.1715445
Abstract
A recording microdensitometer is described that has a resolving power of 800 lines/mm when the scanning aperture is 1 μ wide and 200 μ long. The response is linear in density to 3.0 for the same aperture. By narrowing the aperture to 0.1 μ, the resolving power can be increased to 1800 lines/mm. The record is made either on chart paper with rectangular coordinates, on punched cards, or on both.This publication has 2 references indexed in Scilit:
- Grayson's micro-rulingsJournal of Scientific Instruments, 1934
- On the Distribution of Brightness of the Ultra-Violet Light on the Sun's DiskThe Astrophysical Journal, 1906