公开(公告)号：FR2505088A1

公开(公告)日：1982-11-05

申请号：FR8207316

申请日：1982-04-28

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN ANTHONY

IPC: H01J29/50 ,  H01J29/48 ,  H01J29/56 ,  H01J31/20

Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

公开(公告)号：IT8220369D0

公开(公告)日：1982-03-24

申请号：IT2036982

申请日：1982-03-24

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN ANTHONY

IPC: H01J29/50 ,  H01J29/48 ,  H01J29/56 ,  H01J

Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

公开(公告)号：CA1013452A

公开(公告)日：1977-07-05

申请号：CA173126

申请日：1973-06-04

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  STARAS HAROLD

IPC: G01S17/93 ,  G01S13/76 ,  G01S13/82 ,  G01S13/93 ,  G05D1/02

Abstract: In a vehicular harmonic radar detecting and ranging system, a transmitter transmits a highly directional and polarized beam of electromagnetic energy, preferably in the microwave spectrum, toward a passive target. The passive target reradiates a beam of energy, which is harmonically related to and polarized orthogonal to the transmitted beam, directionally back toward the transmitter. A receiver by being selectively responsive the the harmonically related and orthogonally polarized reradiated beam, is immune to blinding which would otherwise be caused by the transmitted signals of other radar equipped vehicles and to the clutter caused by extraneous targets.

公开(公告)号：DE2333292A1

公开(公告)日：1974-01-10

申请号：DE2333292

申请日：1973-06-29

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  STARAS HAROLD

IPC: G01S17/93 ,  G01S13/76 ,  G01S13/82 ,  G01S13/93 ,  G05D1/02 ,  G01S9/58

Abstract: In a vehicular harmonic radar detecting and ranging system, a transmitter transmits a highly directional and polarized beam of electromagnetic energy, preferably in the microwave spectrum, toward a passive target. The passive target reradiates a beam of energy, which is harmonically related to and polarized orthogonal to the transmitted beam, directionally back toward the transmitter. A receiver by being selectively responsive the the harmonically related and orthogonally polarized reradiated beam, is immune to blinding which would otherwise be caused by the transmitted signals of other radar equipped vehicles and to the clutter caused by extraneous targets.

公开(公告)号：IT1151363B

公开(公告)日：1986-12-17

申请号：IT2036982

申请日：1982-03-24

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN ANTHONY

IPC: H01J29/50 ,  H01J29/48 ,  H01J29/56 ,  H01J

Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

公开(公告)号：FR2505088B1

公开(公告)日：1986-04-25

申请号：FR8207316

申请日：1982-04-28

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN ANTHONY

IPC: H01J29/50 ,  H01J29/48 ,  H01J29/56 ,  H01J31/20

Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

公开(公告)号：CA1174263A

公开(公告)日：1984-09-11

申请号：CA398411

申请日：1982-03-16

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN A

IPC: H01J29/50 ,  H01J29/48 ,  H01J29/56

Abstract: RCA 76,536 An electron gun for use in a cathode ray tube which may be incorporated in a television receiver includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are electrically grounded. Also preferably, the first screen grid is electrically excited to a higher potential than the second screen grid.

公开(公告)号：PL236219A1

公开(公告)日：1983-01-17

申请号：PL23621982

申请日：1982-04-29

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN A

IPC: H01J29/48 ,  H01J29/56 ,  H01J29/50 ,  H01J ,  H04N

Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

公开(公告)号：DE3216039A1

公开(公告)日：1982-11-18

申请号：DE3216039

申请日：1982-04-29

Applicant: RCA CORP

Inventor： SHEFER JOSHUA ,  CATANESE CARMEN ANTHONY

IPC: H01J29/50 ,  H01J29/48 ,  H01J29/56

Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.