Measurement of the Diameter of Opaque Cylinders by Scanning Microscopy
- 1 February 1957
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 47 (2) , 186
- https://doi.org/10.1364/josa.47.000186
Abstract
Experiments have been carried out to determine the systematic errors in the measurement of the diameters of opaque cylinders by scanning microscopy. It was found that for cylinders of diameter near the optical resolution limit, the scanning microscope gives too large a size estimate. The variation of the error with aberrations and numerical aperture of the scanning objective, and with the wavelength and state of polarization of the light were determined. Optimum conditions for size determination are suggested.Keywords
This publication has 2 references indexed in Scilit:
- Images of Incoherently Illuminated Bright and Opaque DisksJournal of the Optical Society of America, 1955
- A Flying-spot MicroscopeNature, 1951