Document Type and Number:
Japanese Patent JPS6362685
Kind Code:
B2
Abstract:
An improved photodetector arrangement comprises positioning a photodetector having at least one semi-transparent 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.
Application Number:
JP5815479A
Publication Date:
December 05, 1988
Filing Date:
May 14, 1979
Export Citation:
International Classes:
G01J1/02; G01J1/42; H01J40/06
Previous Patent: A multi- Defibrillation pulse system which can be adjusted dynamically, and a method
Next Patent: JPS6362686
Next Patent: JPS6362686