公开(公告)号：DK0630036T3

公开(公告)日：1997-10-27

申请号：DK94101588

申请日：1994-02-03

Applicant: IBM

Inventor： LEAVER DAVID ,  JACKSON FREDERICK S ,  KNOX ANDREW RAMSEY ,  BEETESON JOHN S

IPC: G09G1/00 ,  H01J20060101 ,  H01J15/04 ,  H01J29/00 ,  H01J29/06 ,  H01J29/98 ,  H04N3/16 ,  H04N9/29

Abstract: A cathode ray tube display having reduced electric field emissions comprising a cathode ray tube 100, an element 200 for detecting modulations in the final anode voltage of the CRT, the signal not being directly dependent on the deflection driving means 115. A matching network 205 provides phase and gain correction to the signal from element 200, amplification means 210 receives the signal from network 205 and an emission means 215 radiates a cancelling electric field dependent on the modulations detected by said element 200.

公开(公告)号：DE69402615T2

公开(公告)日：1997-09-25

申请号：DE69402615

申请日：1994-02-03

Applicant: IBM

Inventor： JACKSON FREDERICK S ,  LEAVER DAVID ,  KNOX ANDREW RAMSEY ,  BEETESON JOHN S

IPC: G09G1/00 ,  H01J20060101 ,  H01J15/04 ,  H01J29/00 ,  H01J29/06 ,  H01J29/98 ,  H04N3/16 ,  H04N9/29

Abstract: A cathode ray tube display having reduced electric field emissions comprising a cathode ray tube 100, an element 200 for detecting modulations in the final anode voltage of the CRT, the signal not being directly dependent on the deflection driving means 115. A matching network 205 provides phase and gain correction to the signal from element 200, amplification means 210 receives the signal from network 205 and an emission means 215 radiates a cancelling electric field dependent on the modulations detected by said element 200.

公开(公告)号：FI942813A

公开(公告)日：1994-12-16

申请号：FI942813

申请日：1994-06-14

Applicant: IBM

Inventor： JACKSON FREDERICK S ,  LEAVER DAVID ,  KNOX ANDREW RAMSAY ,  BEETESON JOHN S

IPC: G09G1/00 ,  H01J20060101 ,  H01J15/04 ,  H01J29/00 ,  H01J29/06 ,  H01J29/98 ,  H04N3/16 ,  H04N9/29 ,  H01J

Abstract: A cathode ray tube display having reduced electric field emissions comprising a cathode ray tube 100, an element 200 for detecting modulations in the final anode voltage of the CRT, the signal not being directly dependent on the deflection driving means 115. A matching network 205 provides phase and gain correction to the signal from element 200, amplification means 210 receives the signal from network 205 and an emission means 215 radiates a cancelling electric field dependent on the modulations detected by said element 200.

公开(公告)号：FI942813A0

公开(公告)日：1994-06-14

申请号：FI942813

申请日：1994-06-14

Applicant: IBM

Inventor： JACKSON FREDERICK S ,  LEAVER DAVID ,  KNOX ANDREW RAMSAY ,  BEETESON JOHN S

IPC: G09G1/00 ,  H01J20060101 ,  H01J15/04 ,  H01J29/00 ,  H01J29/06 ,  H01J29/98 ,  H04N3/16 ,  H04N9/29 ,  H01J

Abstract: A cathode ray tube display having reduced electric field emissions comprising a cathode ray tube 100, an element 200 for detecting modulations in the final anode voltage of the CRT, the signal not being directly dependent on the deflection driving means 115. A matching network 205 provides phase and gain correction to the signal from element 200, amplification means 210 receives the signal from network 205 and an emission means 215 radiates a cancelling electric field dependent on the modulations detected by said element 200.

公开(公告)号：CA1249495A

公开(公告)日：1989-01-31

申请号：CA438445

申请日：1983-10-05

Applicant: IBM

Inventor： BEETESON JOHN S ,  BEANLANDS PETER

IPC: G02B1/11 ,  G02B5/28 ,  H01J29/89 ,  G02B1/10

Abstract: A multilayer anti-reflection coating for the front viewing surface of a visual display unit is fabricated so that its photometric reflectance characteristic has a substantially inverse-photopic shape with its minimum value substantially coincident with the frequency of the maximum of the photopic luminosity curve. Optionally the minimum can be shifted towards the dominant frequency of the ambient lighting within which the visual display unit is used.