FIELD: physics.
SUBSTANCE: in a television camera, having an objective lens, a matrix of charge coupled devices (CCD matrix), a control pulse generator and a signal processor, the surface area of the gate S1 of the field-effect transistor, which gathers charge carriers in the first charge-to-voltage converting unit of the CCD matrix, is based on the criterion of maximum control capacity of charge conversion, and the surface area S2 of the gate of a similar field-effect transistor in the second charge-to-voltage converting unit is based on the criterion of minimum inherent noise in the image signal, where S1>S2.
EFFECT: wide dynamic range of the image formed by the television camera through optimisation of charge-to-voltage conversion in the photodetector.
5 dwg
