Method for Measurement of Brightness of Carbon Arcs
The brightness, or candlepower per unit area, of a light source is an important determinant of the intensity in a projected light beam. A method is described for measuring brightness of carbon arcs by determining the light intensity on a projected image of the source. The principles of the system and the equipment used for the measurement are discussed.
- Print ISSN
- 0097-5834
- Published
- 1945-07
- Content type
- Original Research
- DOI
- 10.5594/J12857
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