Electric lamp and discharge devices – Photosensitive – Photomultiplier
Reexamination Certificate
2006-11-08
2010-02-09
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
Photosensitive
Photomultiplier
C313S533000, C250S367000
Reexamination Certificate
active
07659666
ABSTRACT:
The present invention relates to a photomultiplier that realizes significant improvement of response time properties with a structure enabling mass production. The photomultiplier comprises a sealed container, and, in the sealed container, a photocathode, at least one dynode set, a dynode unit including a part of insulating supporting members holding the one dynode unit, and a gain control unit are housed. The gain control unit has an insulating base plate, and the insulating base plate is integrally fixed with a control dynode and a final stage dynode that belong to each dynode set together with an anode. By the insulating base plate thus being clamped by the pair of insulating supporting members, the anode, the control dynode, and the final stage dynode constitute a part of an electron multiplier section.
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Ohmura Takayuki
Yamaguchi Teruhiko
Bowman Mary Ellen
Drinker Biddle & Reath LLP
Hamamatsu Photonics K.K.
Patel Nimeshkumar D.
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