Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-10-17
2006-10-17
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C356S339000
Reexamination Certificate
active
07122820
ABSTRACT:
The invention is directed to a method and a combined visibility measuring and precipitation measuring instrument for determining visibility, amount of precipitation and type of precipitation.
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*English Abstract of DE 29 16 388.
Frank W. Gibson “In situ photometric observations of angular scattering from atospheric aerosols” Applied Optics, Oct. 1988, vol. 15, No. 10, pp. 2520-2533.
Ulrich Tietze, et al. “Halbleiter -Schaltungstechnik” Springer Verlag, 11. Auflage 1999, pp. 1215-1219.
Engel Stefan
Heyn Klaus
Luu Thanh X.
Reed Smith LLP
Vaisala Impulsphysik GmbH
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