beeldopneeminrichting comprising a body of a material with a forbidden energieband between the valence band and the conduction band.a hoofdvlak body made of insulating layer and the insulating layer made system of electrodes.

摘要

1411512 Charge transfer image pick-up device WESTERN ELECTRIC CO Inc 12 March 1973 [(17 March 1972 18 Dec 1972] 11704/73 Heading H4F A charge transfer image pick-up device comprises an array of electrodes 10 associated with and insulated from a surface of a charge storage medium, different sets, e.g. rows, of the electrodes being alternately biased, e.g. at A1 and A2, during alternate charge integration periods (e.g. fields) so as to collect charge carries in the medium beneath the biased electrodes resulting from an image incident on the medium and then alternately biased at a faster rate to transfer them into a similar storage array through which they are similarly transferred by alternately applying biases at B1 and B2, the information in each line being sequentially read out from a final line array of electrodes 11 by alternately applying biases at C1 and C2 to obtain a video signal at output 12. The array biased at B1 and B2 and the last line of image-sensing array (biased by A2) are shielded from incident radiation i.e. only the top six lines are exposed. The resulting video signal comprises a line interlaced video signal, the charge collected under the three rows coupled to A1 being collected in one field and the charge under the top three rows coupled to A2 being collected in a second field. The composite array of charge transfer devices may be of the "charge coupled" or "bucket brigade" type, the latter type including regions of fixed charge in the storage medium beneath each electrode and mobile charge integration sites being provided. The above sensing array comprises a twophase device driven by conductive paths A1 and A2, three-phase and four-phase devices are described respectively with reference to Figs. 5 and 4 (not shown) and a line image device with reference to Figs. 6 and 7 (not shown).