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Stephen L. Marcus
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Tucson, AZ, US
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last 30 patents
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Patent Grant
Apparatus with off-axis light path for characterizing the luminous...
Patent number
5,818,571
Issue date
Oct 6, 1998
Photometrics, Ltd.
Keith N. Prettyjohns
G01 - MEASURING TESTING
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Patent Grant
Apparatus and method for characterizing the luminous intensity of a...
Patent number
5,729,336
Issue date
Mar 17, 1998
Photometrics, Ltd.
Keith N. Prettyjohns
G01 - MEASURING TESTING