公开(公告)号：JPS6310444A

公开(公告)日：1988-01-18

申请号：JP15746887

申请日：1987-06-24

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA ,  BLOOM STANLEY ,  HOCKINGS ERIC FRANCIS

IPC: H01J29/50 ,  H01J29/51 ,  H04N9/28

公开(公告)号：FR2569903B1

公开(公告)日：1989-04-14

申请号：FR8512705

申请日：1985-08-26

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/50 ,  H01J29/51

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, a center beam and two side beams, along coplanar paths toward a screen of the tube. The gun includes a main focusing lens for focusing the electron beams. The main focusing lens is formed by two spaced electrodes, each having three separate inline apertures therein. Each electrode also includes a peripheral rim. The peripheral rims of the two electrodes face each other. The apertured portion of each electrode is within a recess set back from the rim. The recesses of the electrodes have substantially the same dimension perpendicular to the inline directions of the inline apertures as the dimension parallel to the inline direction of the inline apertures. However, the recesses have lesser dimensions along diagonals angled at approximately 45 degrees with respect to the inline direction of the inline apertures. The electrodes are connected by four support rods that are peripherally attached to the electrodes along the diagonals.

公开(公告)号：FR2569903A1

公开(公告)日：1986-03-07

申请号：FR8512705

申请日：1985-08-26

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/50 ,  H01J29/51

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, a center beam and two side beams, along coplanar paths toward a screen of the tube. The gun includes a main focusing lens for focusing the electron beams. The main focusing lens is formed by two spaced electrodes, each having three separate inline apertures therein. Each electrode also includes a peripheral rim. The peripheral rims of the two electrodes face each other. The apertured portion of each electrode is within a recess set back from the rim. The recesses of the electrodes have substantially the same dimension perpendicular to the inline directions of the inline apertures as the dimension parallel to the inline direction of the inline apertures. However, the recesses have lesser dimensions along diagonals angled at approximately 45 degrees with respect to the inline direction of the inline apertures. The electrodes are connected by four support rods that are peripherally attached to the electrodes along the diagonals.

公开(公告)号：DE3043048A1

公开(公告)日：1981-09-03

申请号：DE3043048

申请日：1980-11-14

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/48 ,  H01J29/50 ,  H01J29/51 ,  H01J29/70 ,  H01J29/76

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, comprising a center beam and two outer beams, along coplanar paths toward a screen of the tube. The three beams pass through a deflection zone adapted to have vertical and horizontal magnetic deflection fields established therein. The improvement comprises the inclusion of means for nonlinearly increasing the effect of the vertical magnetic deflection field on the center beam relative to the outer beams with increasing angles of vertical deflection of the beams.

公开(公告)号：IT1135504B

公开(公告)日：1986-08-27

申请号：IT1980781

申请日：1981-02-17

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA ,  BARKOW WILLIAM HENRY ,  GROSS JOSEF

IPC: H01J29/76 ,  H01J29/56 ,  H01J29/70 ,  H04N9/28 ,  H04N

Abstract: In a television receiver comprising a display system incorporating a kinescope having horizontal in-line electron beams and also incorporating a deflection yoke having toroidally-wound vertical deflection coils, where the kinescope utilizes a magnetically-permeable G3 focussing electrode in the electron guns to reduce deflection defocussing, an arrangement for correcting misconvergence of the electron beams caused by the magnetically-permeable G3 electrode comprises a pair of magnetically-permeable field formers disposed along and extending toward the rear of the yoke. The field formers are configured to collect a portion of the external fields generated by the vertical windings and direct those portions through the kinescope neck substantially at right angles to the electron beams in the vicinity of the exit end of the electron guns with a barrel-shaped transverse pattern.

公开(公告)号：DD236418A5

公开(公告)日：1986-06-04

申请号：DD27999285

申请日：1985-08-26

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/50 ,  H01J29/51

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, a center beam and two side beams, along coplanar paths toward a screen of the tube. The gun includes a main focusing lens for focusing the electron beams. The main focusing lens is formed by two spaced electrodes, each having three separate inline apertures therein. Each electrode also includes a peripheral rim. The peripheral rims of the two electrodes face each other. The apertured portion of each electrode is within a recess set back from the rim. The recesses of the electrodes have substantially the same dimension perpendicular to the inline directions of the inline apertures as the dimension parallel to the inline direction of the inline apertures. However, the recesses have lesser dimensions along diagonals angled at approximately 45 degrees with respect to the inline direction of the inline apertures. The electrodes are connected by four support rods that are peripherally attached to the electrodes along the diagonals.

公开(公告)号：IT8119807D0

公开(公告)日：1981-02-17

申请号：IT1980781

申请日：1981-02-17

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA ,  BARKOW WILLIAM HENRY ,  GROSS JOSEF

IPC: H01J29/76 ,  H01J29/56 ,  H01J29/70 ,  H04N9/28 ,  H04N

Abstract: In a television receiver comprising a display system incorporating a kinescope having horizontal in-line electron beams and also incorporating a deflection yoke having toroidally-wound vertical deflection coils, where the kinescope utilizes a magnetically-permeable G3 focussing electrode in the electron guns to reduce deflection defocussing, an arrangement for correcting misconvergence of the electron beams caused by the magnetically-permeable G3 electrode comprises a pair of magnetically-permeable field formers disposed along and extending toward the rear of the yoke. The field formers are configured to collect a portion of the external fields generated by the vertical windings and direct those portions through the kinescope neck substantially at right angles to the electron beams in the vicinity of the exit end of the electron guns with a barrel-shaped transverse pattern.

公开(公告)号：IT1133691B

公开(公告)日：1986-07-09

申请号：IT2540480

申请日：1980-10-17

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/48 ,  H01J29/50 ,  H01J29/51 ,  H01J29/70 ,  H04N

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, comprising a center beam and two outer beams, along coplanar paths toward a screen of the tube. The three beams pass through a deflection zone adapted to have vertical and horizontal magnetic deflection fields established therein. The improvement comprises the inclusion of means for nonlinearly increasing the effect of the vertical magnetic deflection field on the center beam relative to the outer beams with increasing angles of vertical deflection of the beams.

公开(公告)号：DE3530932A1

公开(公告)日：1986-03-06

申请号：DE3530932

申请日：1985-08-29

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/50 ,  H01J29/51 ,  H01J29/62

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, a center beam and two side beams, along coplanar paths toward a screen of the tube. The gun includes a main focusing lens for focusing the electron beams. The main focusing lens is formed by two spaced electrodes, each having three separate inline apertures therein. Each electrode also includes a peripheral rim. The peripheral rims of the two electrodes face each other. The apertured portion of each electrode is within a recess set back from the rim. The recesses of the electrodes have substantially the same dimension perpendicular to the inline directions of the inline apertures as the dimension parallel to the inline direction of the inline apertures. However, the recesses have lesser dimensions along diagonals angled at approximately 45 degrees with respect to the inline direction of the inline apertures. The electrodes are connected by four support rods that are peripherally attached to the electrodes along the diagonals.

公开(公告)号：GB2163899A

公开(公告)日：1986-03-05

申请号：GB8521205

申请日：1985-08-23

Applicant: RCA CORP

Inventor： ALIG ROGER CASANOVA

IPC: H01J29/50

Abstract: An improved color picture tube has an inline electron gun for generating and directing three electron beams, a center beam and two side beams, along coplanar paths toward a screen of the tube. The gun includes a main focusing lens for focusing the electron beams. The main focusing lens is formed by two spaced electrodes, each having three separate inline apertures therein. Each electrode also includes a peripheral rim. The peripheral rims of the two electrodes face each other. The apertured portion of each electrode is within a recess set back from the rim. The recesses of the electrodes have substantially the same dimension perpendicular to the inline directions of the inline apertures as the dimension parallel to the inline direction of the inline apertures. However, the recesses have lesser dimensions along diagonals angled at approximately 45 degrees with respect to the inline direction of the inline apertures. The electrodes are connected by four support rods that are peripherally attached to the electrodes along the diagonals.