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Note on the theory of photographic sensitivity

โœ Scribed by S.E. Sheppard; E.P. Wightman


Publisher
Elsevier Science
Year
1923
Tongue
English
Weight
50 KB
Volume
196
Category
Article
ISSN
0016-0032

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Preliminary note on the spectral energy
โœ Loyd A. Jones; A.L. Schoen ๐Ÿ“‚ Article ๐Ÿ“… 1923 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 149 KB

comparison beam is controlled primarily by an adjustable sector shutter placed in a collimated beam of light between two elements of one of the lens combinations used to form an image oi the light source on the comparison target. 71'he photometric field is obtained by the use of the well-known Lumm