Optical sensor line of amorphous or polycrystalline photoelectri

Details Optical sensor line of amorphous or polycrystalline photoelectri Optical sensor line of amorphous or polycrystalline photoelectri

1989-07-31

1991-06-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

356223, H01J 4014

Patent

active

050251465

ABSTRACT:
Optical sensor line of amorphous or polycrystalline photo-electric material having a plurality of sensor elements. An optical sensor line of amorphous or polycrystalline photo-electric material having a plurality of sensor elements, whereby it is provided that a non-linear element is allocated to each sensor element as a converter that converts the photo-current (i.sub.ph) of the associated sensor and which is proportional to the quantity of light incident on the sensor into a signal voltage (u.sub.s) that is at least approximately proportional to the logarithm of the photo-current (i.sub.ph).

REFERENCES:
patent: 4309604 (1982-01-01), Yoshikawa et al.
patent: 4660075 (1987-04-01), Hashimoto et al.

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