Ricoh Company, Ltd.

Kouji Mori

Masanori Itagaki

Hideo Segawa

Tatsumi Ishiwata

Taizo Yoshida

Kouichi Sakurai

An image sensing device includes a plurality of photoelectric elements arranged in the form of a single array and divided into n number of blocks each of which includes m number of the photoelectric elements commonly connected at one end. In one form of the present invention, a single operational amplifier and m number of switching circuits are used to establish operational independency of the m.times.n photoelectric elements. In other forms, operational independecy of the m.times.n photoelectric elements is established by using an array of blocking diodes or operational amplifiers constructed in the form of IC, but all of the components of a driving or scanning circuit, including these blocking diodes or operational amplifiers, are so structured to be mounted on the same substrate which is remarkably compact in size. Also provided are various forms of photoelectric cells which are particularly suited to be incorporated into an image sensing device and methods for manufacturing the same.

Image sensing

A photoelectric device comprises a substrate, a counter electrode, and a photoelectric element interposed therebetween in deposited state and comprising, in successively deposited state, a transparent electroconductive film, a CdS film, a CdTe film, and an As.sub.2 Se.sub.3 film. This device is produced by successively depositing the films while the substrate is maintained at respective specific temperatures, the CdS film and the CdTe film being respectively heat treated at respective specific temperatures and in specific atmospheres after deposition.

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Yokohama, Japan

Kouji Mori