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Photographic film for preserving records

Publisher
Elsevier Science
Year
1939
Tongue
English
Weight
110 KB
Volume
228
Category
Article
ISSN
0016-0032

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๐Ÿ“œ SIMILAR VOLUMES

A system for rapid production of photogr
A system for rapid production of photographic records
โœ F.M. Brown; L.L. Blackmer; C.J. Kunz ๐Ÿ“‚ Article ๐Ÿ“… 1946 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 552 KB

In the land-based radar direction of aircraft it was found necessary-to transfer to a large plotting screen a lox magnification of the PPI cathode-ray tube face . An instrument was developed to do this photographically, with the projected image lagging only i5 seconds behind the latest information .