Image sensing
US4788522A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1985 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Jul 26, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/802
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.