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DTIC ADA074238: Night Television System. |
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by Defense Technical Information Center |
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Tests were conducted during a 15-month period from |
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January 1957 to March 1958 to determine the effectiveness |
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of the type 6849 Image Orthicon Camera Tube manufactured |
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by Radio Corporation of America, as a light-sensitive |
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pickup device when used in television camera systems |
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during the hours of darkness. Three lenses were used |
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during the tests: An f/0.87 76mm, an f/1.9 50mm, and an |
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f/3.8 135mm. Preliminary tests under low light level |
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conditions revealed that the f/0.87, 76mm Super-Farron |
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high speed objective lens, manufactured by the Farrand |
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Optical Company, New York City, New York, was the only |
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lens of those tested which yielded useful imagery. Field |
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tests were conducted over the period 10 days before and |
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10 days after full moon under 'visibility unlimited' |
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conditions. Controlled laboratory tests were conducted |
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using incandescent lamps for illumination. |
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Date Published: 2017-10-06 21:01:48 |
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Identifier: DTIC_ADA074238 |
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Item Size: 23665518 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; McKeen,William A ; ARMY... |
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