GB724700A - Improvements in and relating to electromagnetic deflection yokes for cathode-ray tubes - Google Patents
Improvements in and relating to electromagnetic deflection yokes for cathode-ray tubesInfo
- Publication number
- GB724700A GB724700A GB6278/53A GB627853A GB724700A GB 724700 A GB724700 A GB 724700A GB 6278/53 A GB6278/53 A GB 6278/53A GB 627853 A GB627853 A GB 627853A GB 724700 A GB724700 A GB 724700A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- loop
- coil
- cathode
- ray tubes
- 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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
- H01J29/762—Deflecting by magnetic fields only using saddle coils or printed windings
Landscapes
- Details Of Television Scanning (AREA)
- Particle Accelerators (AREA)
Abstract
724,700. Cathode-ray tubes. PHILCO CORPORATION. March 6, 1953 [July 9, 1952], No. 6278/53. Class 39 (1). In a cathode-ray tube deflecting coil system in which the coils lie on a surface of revolution and have loop-ends extending away from the axis of the system, the loop-ends of one set of coils, arranged as two pairs of coils 72, 74 and 76, 78, embrace in both the axial and radial directions, the loop-ends of the other set of coils, arranged as a single pair of coils 54, 56, or n + 1 coilpairs may interleave with n coil-pairs. Each coil may comprise a distributed winding, or may itself, as shown, comprise two coils, the loop-ends of one lying within the loop-ends of the other. For example coil 74 consists of the two coils 80, 82. Each such coil-pair is designed to produce for the axial and radial portions a cosinusoidal, and for the arcuate portions of the loop-ends a sinusoidal, distribution of ampere turns. A ferromagnetic cylinder 50 for example of moulded powdered iron, encloses the system. Specification 687,762 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US297896A US2639314A (en) | 1952-07-09 | 1952-07-09 | Electromagnetic deflection yoke |
Publications (1)
Publication Number | Publication Date |
---|---|
GB724700A true GB724700A (en) | 1955-02-23 |
Family
ID=23148174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6278/53A Expired GB724700A (en) | 1952-07-09 | 1953-03-06 | Improvements in and relating to electromagnetic deflection yokes for cathode-ray tubes |
Country Status (2)
Country | Link |
---|---|
US (1) | US2639314A (en) |
GB (1) | GB724700A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817782A (en) * | 1954-07-09 | 1957-12-24 | Rca Corp | Cathode ray tube deflection apparatus |
DE2940931C2 (en) * | 1979-10-09 | 1986-05-07 | Siemens AG, 1000 Berlin und 8000 München | Deflection unit for cathode ray tubes |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2228821A (en) * | 1938-10-01 | 1941-01-14 | Gen Electric | Magnetic sweep coil circuit |
US2240606A (en) * | 1939-10-21 | 1941-05-06 | Philco Radio & Television Corp | Electron beam deflecting yoke |
US2573017A (en) * | 1945-11-06 | 1951-10-30 | Leland J Haworth | Cathode-ray tube apparatus for producing sector scan |
US2578343A (en) * | 1946-06-13 | 1951-12-11 | Bell Telephone Labor Inc | Deflection coil testing apparatus and method |
US2562394A (en) * | 1948-01-15 | 1951-07-31 | Motorola Inc | Electromagnetic deflection yoke |
US2605433A (en) * | 1950-12-19 | 1952-07-29 | Rca Corp | Magnetic shield for cathode-ray apparatus |
-
1952
- 1952-07-09 US US297896A patent/US2639314A/en not_active Expired - Lifetime
-
1953
- 1953-03-06 GB GB6278/53A patent/GB724700A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2639314A (en) | 1953-05-19 |
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