公开(公告)号：EP0782762A4

公开(公告)日：1997-12-03

申请号：EP95931727

申请日：1995-09-07

Applicant: FED CORP

Inventor： JONES GARY W ,  KIM JONG ,  ZIMMERMAN STEVEN M

IPC: G01R33/10 ,  G02B27/00 ,  G02B27/01 ,  G02B27/22 ,  G09G3/00 ,  H01J3/02 ,  H01J9/02 ,  H01J9/24 ,  H01J29/94 ,  H01J31/12 ,  H04N5/70 ,  H04N5/74 ,  H04N13/00 ,  H01J1/02

CPC classification number: G02B27/017 ,  G01R33/10 ,  G02B27/0172 ,  G02B27/0176 ,  G02B27/2235 ,  G02B2027/0132 ,  G02B2027/0136 ,  G09G3/001 ,  H01J3/022 ,  H01J9/025 ,  H01J29/94 ,  H01J31/127 ,  H01J2201/304 ,  H01J2201/30426 ,  H01J2201/30457 ,  H01J2201/319 ,  H01J2209/385 ,  H01J2329/00 ,  H04N5/70 ,  H04N5/7408 ,  H04N5/7491 ,  H04N13/0059 ,  H04N13/0285 ,  H04N13/0422 ,  H04N13/0427 ,  H04N13/0438 ,  H04N13/044 ,  H04N13/0456 ,  H04N13/0459 ,  H04N13/0497

Abstract: A field emitter array magnetic sensor (FEAMS) device, comprising: an anode; a base plate member having on a first side thereof a plurality of gated field emitter elements thereon, in spaced proximal relationship to the anode. The plurality of gated field emitter elements and the anode structure are arranged so that each of the gated field emitter elements is in electron emitting relationship to varying electron impingement sites depending on intensity of the magnetic field on the gated field emitter element. The device includes structure for sensing the locations of the anode structure electron impingement sites receiving electrons from the plurality of gated field emitter elements, and determining the strength and orientation of the magnetic field. Also disclosed are various anode configurations which may be usefully employed in the FEAMS device of the invention.