Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1352/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :13/02/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : X-RAY TUBE WITH INDEPENDENT X- AND Z-DYNAMIC FOCAL SPOT DEFLECTION
(51) International classification :H01J35/14
(31) Priority Document No :61/233505
(32) Priority Date :13/08/2009
(33) Name of priority country :U.S.A.
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/IB2010/053444
:29/07/2010
:NA
:NA
(71)Name of Applicant :
1)KONINKLIJKE PHILIPS ELECTRONICS N.V.
Address of Applicant :GROENEWOUDSEWEG 1
EINDHOVEN 5621 BA NETHERLANDS
(72)Name of Inventor :
1)KAUTZ Allan
2)PERNO Salvatore
3)BROOKS Gary
4)AWAD George
5)BUAN Jose Angelo
(57) Abstract :
An X-ray tube is provided which is adapted to generate X-ray beams. The X-ray tube may comprise electrostatic grids for focal
spot deflection in x-direction wherein the electrostatic grids are mounted on either side of the cathode. Further the X-ray tube may
comprise electromagnetic coils for focal spot deflection in y-direction wherein said electromagnetic coils forming a dipole are
mounted external to the X-ray tube and are positioned between the cathode and the target of the anode so that the electron beam
passes between its poles. The electrostatic grids and the electromagnetic coils are arranged separately from each other and provide
for a combination of electrostatic x-deflection in tandem with electromagnetic z-deflection.
No. of Pages : 19 No. of Claims : 12
The Patent Office Journal 21/06/2013 13923