公开(公告)号：US3495124A

公开(公告)日：1970-02-10

申请号：US3495124D

申请日：1966-04-06

Applicant: RCA CORP

Inventor： THOMPSON IRA F ,  BARBIN ROBERT L

IPC: H04N9/18 ,  H01J31/20 ,  H01J29/50 ,  H01J31/06

CPC classification number: H01J31/205

公开(公告)号：US3310763A

公开(公告)日：1967-03-21

申请号：US43030965

申请日：1965-02-04

Applicant: RCA CORP

Inventor： THOMPSON IRA F

IPC: H01J29/76

CPC classification number: H01J29/766

公开(公告)号：CA777317A

公开(公告)日：1968-01-30

申请号：CA777317D

Applicant: RCA CORP

Inventor： THOMPSON IRA F

公开(公告)号：CA1049607A

公开(公告)日：1979-02-27

申请号：CA247187

申请日：1976-03-05

Applicant: RCA CORP

Inventor： THOMPSON IRA F

IPC: H01J29/76 ,  H01F5/00 ,  H01F5/02 ,  H01J29/70

Abstract: MULTI-LAYER TOROIDAL DEFLECTION YOKE A multi-layer toroidal deflection yoke includes a flared ferrite core and grooved ring members respectively disposed at the large and small diameter ends of the core to determine the position of several layers of toroidally wound conductor turns which form the deflection windings. The large diameter ring member includes radially extending tabs forming conductor receiving pockets therebetween. Each pocket has a width less than the combined diameters of the generally side-by-side conductor turns wound in the pocket. Each pocket includes first and second conductor seat portions at different heights so that the first conductor turn is retained in the first seat portion by a first tab and the second seat, the second conductor turn is retained by the first conductor turn and a second tab and subsequent conductor turns are similarly retained.

公开(公告)号：CA829433A

公开(公告)日：1969-12-09

申请号：CA829433D

Applicant: RCA CORP

Inventor： THOMPSON IRA F ,  BARBIN ROBERT L

公开(公告)号：CA967223A

公开(公告)日：1975-05-06

申请号：CA165802

申请日：1973-03-12

Applicant: RCA CORP

Inventor： THOMPSON IRA F ,  SMITH JOSEPH L

IPC: H01J29/70

Abstract: A static convergence device for a plurality of coplanar electron beams in a color television picture tube comprises a plurality of magnet holding members disposed around the neck region of the picture tube, each member adapted to be rotated around the neck of the picture tube and including a plurality of magnetic poles for producing a magnetic field within the neck region. The magnetic poles are disposed on respective rings for producing 1) opposite direction motion of substantially only the outer beams, 2) the same direction motion of substantially only the outer beams, and 3) the same direction motion of all of the coplanar beams.

公开(公告)号：CA966543A

公开(公告)日：1975-04-22

申请号：CA162081

申请日：1973-01-25

Applicant: RCA CORP

Inventor： OVER DONALD P ,  THOMPSON IRA F

IPC: H01J9/236 ,  H01F5/00 ,  H01F7/20 ,  H01F41/04 ,  H01J29/76

Abstract: 1421988 Deflection coils for cathode-ray tubes RCA CORPORATION 21 Feb 1973 [28 Feb 1972] 8453/73 Heading H1D A toroidal deflection yoke, e.g. for a colour cathode-ray tube comprises a pair of horizontal and a pair of vertical deflection coils wound on a hollow flared core, the turns being applied so that they occupy a single layer at the wider end of the core and a double layer at the narrow end, the coils being wound by taking a conductor around the core with the turns close together at the narrow end and spaced apart at the wider end, this being done for several turns and then the conductor is taken back in a fly-back manner on the outside of the core and further turns are applied to fill in the spaces between the conductors at the wide end and on top of the earlier turns at the narrow end. A typical winding pattern is shown in Fig. 3. The turns of coil 1 are indicated by lines between the numbered circles and those of coil 2 by lines between numbered triangles. Solid lines are portions of turns on the outside of the core and a few internal portions are shown as dotted lines, it being understood that all circles or triangles of like number are connected by such internal turn portions. In this Figure, the flyback turn is made after alternate turns but in Fig. 4 (not shown) seven turns are made before the fly-back. After turn 15, Fig. 3, a gap is left in coil 1 to accommodate coil 2 to obtain the required turn distribution, coil 2 being wound in a pattern similar to coil 1, i.e. with fly-back turns after alternate turns. This method of winding deflection yokes is said to require less operations in the winding machine than the conventional method of winding continuously around the core and cutting the wire to form the separate coils.