Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent
1979-09-14
1981-03-17
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Electron or ion beam deflecting type
335210, H01F 700
Patent
active
042570247
ABSTRACT:
A color picture tube apparatus comprising a color picture tube and beam deflecting means surrounding the color picture tube. The color picture tube includes an in-line type electron gun and a phosphor screen with phosphor layers. Each phosphor layer emits red, green and blue light when the electron beams from the electron gun impinge upon it. The beam deflecting means includes a horizontal deflection coil for generating a horizontal deflection magnetic field, a vertical deflecting coil and correction coils. The vertical deflecting coil and the correction coils cooperate to generate a vertical deflection magnetic field. The distribution of the horizontal deflection magnetic field is barrel-shaped on the electron gun side and pincushion-shaped on the phosphor screen side and is, as a whole, pincushion-shaped. The distribution of the vertical deflection magnetic field is barrel-shaped on the electron gun side and pincushion-shaped on the phosphor screen side and is, as a whole, barrel-shaped. The correction coils serve to automatically correct both an image distortion and a convergence error at the same time.
REFERENCES:
patent: 3106658 (1963-10-01), Chandler et al.
patent: 3573525 (1971-04-01), Fuse
patent: 3763452 (1973-10-01), Ikeuchi
patent: 3849749 (1974-11-01), Kadota
Techn. Mitt. AEG Telefunken 65, (1975), 7.
Fukuda Kumio
Nakamura Michio
Shimoma Taketoshi
Harris George
Tokyo Shibaura Denki Kabushiki Kaisha
LandOfFree
Color picture tube apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color picture tube apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color picture tube apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1648131