SE321294B - - Google Patents
Info
- Publication number
- SE321294B SE321294B SE15626/67A SE1562667A SE321294B SE 321294 B SE321294 B SE 321294B SE 15626/67 A SE15626/67 A SE 15626/67A SE 1562667 A SE1562667 A SE 1562667A SE 321294 B SE321294 B SE 321294B
- Authority
- SE
- Sweden
- Prior art keywords
- cylinders
- plates
- angles
- tube
- gun
- Prior art date
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
-
- 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/861—Vessels or containers characterised by the form or the structure thereof
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
1,202,563. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Nov., 1967 [16 Nov., 1966], No. No. 51509/67. Heading H1D. In a cathode-ray tube in which the length of the tube is reduced by having the neck out of alignment with the rest of the envelope and in which the electron beam from gun 3 is deflected in two mutually perpendicular directions at right-angles to the beam path, the beam is bent towards the screen 8 by a pair of plates 5 each of which is curved to form part of a cylindrical surface and situated so that the corresponding cylinders are coaxial, and each surface subtending an angle # at the cylinder axes, which angles are coincident, and where # lies between 127À3 and 133 degrees. Preferably the deflection of the electron beam in the axial direction of the cylinders 5 is effected by plates 4 situated between the cylinders and gun 3, and deflection of the beam in the radial direction of the cylinders is effected by plates 6 after the beam has passed through the cylniders. The upper limit on the angle 0 is imposed by restricting the magnification in the radial direction of the cylinders of an image after passing through the cylinders to being not less than 0À5, and furthermore the distance L from the end plane 10 of the cylinders to the first focus of the beam becomes so large for angles greater than 133 degrees that no significant reduction in the length of the tube is achieved. Dimensions and specific voltages of an example are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6616131A NL6616131A (en) | 1966-11-16 | 1966-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE321294B true SE321294B (en) | 1970-03-02 |
Family
ID=19798203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE15626/67A SE321294B (en) | 1966-11-16 | 1967-11-14 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1614290A1 (en) |
| GB (1) | GB1202563A (en) |
| NL (1) | NL6616131A (en) |
| SE (1) | SE321294B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4739218A (en) * | 1985-04-18 | 1988-04-19 | Schwartz Samuel A | Short cathode ray tube |
| US6617779B1 (en) | 2001-10-04 | 2003-09-09 | Samuel A. Schwartz | Multi-bend cathode ray tube |
-
1966
- 1966-11-16 NL NL6616131A patent/NL6616131A/xx unknown
-
1967
- 1967-10-25 DE DE19671614290 patent/DE1614290A1/en active Pending
- 1967-11-13 GB GB5150967A patent/GB1202563A/en not_active Expired
- 1967-11-14 SE SE15626/67A patent/SE321294B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1202563A (en) | 1970-08-19 |
| DE1614290A1 (en) | 1970-07-09 |
| NL6616131A (en) | 1968-05-17 |
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