公开(公告)号：US3716740A

公开(公告)日：1973-02-13

申请号：US3716740D

申请日：1970-09-18

Applicant: BELL TELEPHONE LABOR INC

Inventor： CROWELL M ,  GORDON E

IPC: H01J29/38 ,  H01J31/48

CPC classification number: H01J29/38

Abstract: THE SPECIFICATION DESCRIBES A NEW TYPE OF PHOTOCATHODE COMPRISING A SEMICONDUCTOR DIODE-ARRAY LIGHT SENSING ELEMENT IN COMBINATION WITH A PHOTOEMISSIVE COATING. THE SPATIAL PATTERN OF ELECTRON EMISSION FROM THE PHOTOEMITTER IS CONTROLLED BY THE LOCALIZED FIELD IN THE DIODE ARRAY. THE LOCAL INTENSITY OF THIS FIELD GIVES A SPATIAL REPRESENTATION OF THE IMAGE INCIDENT ON THE DIODE ARRAY. WITH A SILICON DIODE ARRAY INFRARED AND X-RAY RESPONSE ARE INHERENT.