(19)
(11) EP 0 900 446 A1

(12)

(43) Date of publication:
10.03.1999 Bulletin 1999/10

(21) Application number: 97925638.0

(22) Date of filing: 20.05.1997
(51) International Patent Classification (IPC): 
H05H 7/ 22( . )
H01J 23/ 06( . )
H01J 3/ 02( . )
(86) International application number:
PCT/US1997/008461
(87) International publication number:
WO 1997/044804 (27.11.1997 Gazette 1997/51)
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 22.05.1996 US 19960651626

(71) Applicants:
  • Schwartz, Ansel M.
    Pittsburg, Pennsylvenia 15217 (US)
  • Mako, Frederick Michael
    Fairfax Station, Virginia 22039 (US)

(72) Inventor:
  • MAKO, Frederick, M.
    Fairfax Station, VA 22039 (US)

(74) Representative: Jones, Michael Raymond, et al 
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD
London WC2B 6UD (GB)

   


(54) ELECTRON GUN HAVING MULTIPLE EMITTING SECTIONS FOR GENERATING MULTIPLE ELECTRON BUNCHES