GB1249346A - Improvements in or relating to cathode ray tubes - Google Patents
Improvements in or relating to cathode ray tubesInfo
- Publication number
- GB1249346A GB1249346A GB47941/68A GB4794168A GB1249346A GB 1249346 A GB1249346 A GB 1249346A GB 47941/68 A GB47941/68 A GB 47941/68A GB 4794168 A GB4794168 A GB 4794168A GB 1249346 A GB1249346 A GB 1249346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oct
- target
- signals
- electrodes
- cathode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/54—Arrangements for centring ray or beam
Landscapes
- Measurement Of Radiation (AREA)
- Geophysics And Detection Of Objects (AREA)
- Particle Accelerators (AREA)
Abstract
1,249,346. Cathode-ray tubes. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 9 Oct., 1968 [11 Oct., 1967; 12 Oct., 1967; 13 Oct., 1967; 14 Oct., 1967; 16 Oct., 1967], No. 47941/68. Heading H1D. [Also in Division G3] In a cathode-ray tube having a linear target in the faceplate, e.g. a row of electrostatic printing pins or wires, a row or rows of optical fibres, or an elongated Lenard window 1, a pair of insulated electrodes 6, 6<SP>1</SP> are provided close to the target to pick up signals which are fed back to the deflecting plates 8, 8<SP>1</SP>, or to a magnetic deflection system, whereby the beam is kept centred on the target. The signals may be picked up directly by the electrodes 6, 6<SP>1</SP>, or inductively, in which case the electrodes are parallel plates at a slightly wider spacing than the width of the target. In the arrangement shown a rough positioning of the beam is effected by magnetic coils 16. An oscillator 18 provides a signal "wobbling" the beam perpendicular to the target and the signals picked up by the electrodes 6, 6<SP>1</SP> are amplified at 9, 9<SP>1</SP> and rectified at 10, 10<SP>1</SP> or (Fig. 5) combined and phase discriminated. Alternatively the signals may be compared in a potentiometer circuit.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6587467 | 1967-10-11 | ||
| JP6621867A JPS5019908B1 (en) | 1967-10-12 | 1967-10-12 | |
| JP6675867 | 1967-10-13 | ||
| JP6700167A JPS4813866B1 (en) | 1967-10-14 | 1967-10-14 | |
| JP6708367 | 1967-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1249346A true GB1249346A (en) | 1971-10-13 |
Family
ID=27523943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47941/68A Expired GB1249346A (en) | 1967-10-11 | 1968-10-09 | Improvements in or relating to cathode ray tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3588587A (en) |
| DE (1) | DE1802680A1 (en) |
| FR (1) | FR1587443A (en) |
| GB (1) | GB1249346A (en) |
| NL (1) | NL152111B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2345574A (en) * | 1999-01-05 | 2000-07-12 | Applied Materials Inc | Apparatus and method for monitoring and tuning an ion beam in an ion implantation apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2213029A (en) * | 1987-11-25 | 1989-08-02 | Philips Electronic Associated | Beam position control in a flat crt display system |
-
1968
- 1968-10-09 GB GB47941/68A patent/GB1249346A/en not_active Expired
- 1968-10-09 FR FR1587443D patent/FR1587443A/fr not_active Expired
- 1968-10-10 NL NL686814503A patent/NL152111B/en unknown
- 1968-10-11 DE DE19681802680 patent/DE1802680A1/en active Pending
-
1969
- 1969-07-22 US US843692A patent/US3588587A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2345574A (en) * | 1999-01-05 | 2000-07-12 | Applied Materials Inc | Apparatus and method for monitoring and tuning an ion beam in an ion implantation apparatus |
| US6897457B1 (en) | 1999-01-05 | 2005-05-24 | Applied Materials, Inc. | Apparatus and method for monitoring and tuning an ion beam in ion implantation apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| US3588587A (en) | 1971-06-28 |
| NL6814503A (en) | 1969-04-15 |
| FR1587443A (en) | 1970-03-20 |
| NL152111B (en) | 1977-01-17 |
| DE1802680A1 (en) | 1969-07-17 |
| DE1802680B2 (en) | 1971-01-21 |
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