Back to results
US RE31,350 EGranted
Photodetector arrangements and circuits
AssigneeThe Perkin-Elmer Corporation
InventorsMorteza M. Chamran, Milan R. Dimovski
Life of this patent
Estimating the term…
Abstract
An improved photodetector arrangement comprises positioning a photodetector having at least one semitransparent cathode so that the light beam striking the cathode passes through it at least twice before exiting from the photodetector. In another embodiment of the invention, a second photodetector is positioned relative to a first photodetector so that the light beam, after striking the first photodetector, strikes the second photodetector. Where the two photodetectors are employed, they may be electrically connected in parallel.
Claims11
An improved photodetector arrangement comprising
- photodetector means having a cathode which is at least semi-transparent to a light beam, said cathode having the capability of emitting electrons when positioned in said light beam, said cathode being contoured and positioned relative to said light beam so that said light beam passes through said cathode at least twice while following a substantially single linear path through and out of said photodetector means.
Dependencies are inferred from the claim text.