SE7508010L - CATHOOD RADIATOR FOR REPRODUCTION OF COLOR IMAGES - Google Patents
CATHOOD RADIATOR FOR REPRODUCTION OF COLOR IMAGESInfo
- Publication number
- SE7508010L SE7508010L SE7508010A SE7508010A SE7508010L SE 7508010 L SE7508010 L SE 7508010L SE 7508010 A SE7508010 A SE 7508010A SE 7508010 A SE7508010 A SE 7508010A SE 7508010 L SE7508010 L SE 7508010L
- Authority
- SE
- Sweden
- Prior art keywords
- mask
- potential
- colour
- vertical
- july
- Prior art date
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
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
- H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
- H01J29/81—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching using shadow masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
- H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
- H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
1496949 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 July 1975 [17 July 1974] 29413/75 Heading H1D In a multigun colour TV C.R.T. to allow reduction of the obstruction by a shadow mask without loss of definition the mask 7 carries electrodes forming a quadruple lens round each aperture, defocusing vertically and focusing horizontally just beyond the luminescent screen 6, to irradiate from each gun a colour phosphor vertical stripe R, G, B slightly wider than the electron impact area. The mask may comprise crossed vertical and horizontal strips 13, 14 and 11, 12, attached but insulated with glass, each set commoned and carrying a potential respectively above and below the mean mask potential. Alternatively the mask may be made from interwoven conductors insulated at their intersections (Fig. 4, not shown) or if may be an apertured plate held at phosphor screen potential (e.g. Fe for magnetic screening) (Fig. 6 not shown) carrying between the apertures a set of vertical strips (e.g. vapour deposited Al) at a lower potential or isolated and charged by the electron beams to reach a stable equilibrium potential. In all embodiments secondary electron effects are negligible.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7409642A NL167798C (en) | 1974-07-17 | 1974-07-17 | ELECTRON BEAM FOR DISPLAYING COLORED IMAGES. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7508010L true SE7508010L (en) | 1976-01-19 |
SE398414B SE398414B (en) | 1977-12-19 |
Family
ID=19821774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7508010A SE398414B (en) | 1974-07-17 | 1975-07-14 | CATHOOD RADIATOR FOR REPRODUCTION OF COLOR IMAGES |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS5524652B2 (en) |
AT (1) | AT341012B (en) |
AU (1) | AU500139B2 (en) |
BE (1) | BE831393A (en) |
BR (1) | BR7504445A (en) |
CA (1) | CA1042059A (en) |
ES (1) | ES439433A1 (en) |
FR (1) | FR2279220A1 (en) |
GB (1) | GB1496949A (en) |
IT (1) | IT1036237B (en) |
NL (1) | NL167798C (en) |
SE (1) | SE398414B (en) |
ZA (1) | ZA754032B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7600419A (en) * | 1976-01-16 | 1977-07-19 | Philips Nv | COLOR IMAGE TUBE AND METHOD OF MANUFACTURE THEREOF. |
NL7600422A (en) * | 1976-01-16 | 1977-07-19 | Philips Nv | ELECTRICAL DISCHARGE DEVICE. |
NL7600417A (en) * | 1976-01-16 | 1977-07-19 | Philips Nv | METHOD OF MANUFACTURING A CATHODE RAY TUBE FOR DISPLAYING COLORED IMAGES. |
NL7600418A (en) * | 1976-01-16 | 1977-07-19 | Philips Nv | METHOD FOR MANUFACTURING A COLOR IMAGE TUBE, COLOR IMAGE TUBE MADE IN ACCORDANCE WITH THE METHOD AND DEVICE FOR PERFORMING THE METHOD. |
NL7704130A (en) * | 1977-04-15 | 1978-10-17 | Philips Nv | COLOR IMAGE TUBE. |
NL7711773A (en) * | 1977-10-27 | 1979-05-02 | Philips Nv | COLOR IMAGE TUBE AND METHOD FOR THE MANUFACTURE OF SUCH COLOR IMAGE TUBE. |
NL7806868A (en) * | 1978-06-27 | 1980-01-02 | Philips Nv | METHOD FOR MANUFACTURING ELECTRODE SYSTEMS AND SO MADE ELECTRODE SYSTEMS |
US4316126A (en) * | 1979-11-23 | 1982-02-16 | Rca Corporation | Color television picture tube with color-selection structure and method of operation thereof |
US4350922A (en) * | 1980-06-20 | 1982-09-21 | Rca Corporation | Multicolor cathode-ray tube with quadrupolar focusing color-selection structure |
US4311944A (en) * | 1980-06-27 | 1982-01-19 | Rca Corporation | CRT With dipolar deflection and quadrupolar-focusing color-selection structure |
DE60206878T2 (en) | 2001-01-30 | 2006-07-20 | Kabushiki Kaisha Toshiba | COLOR CATHODE RAY TUBES AND METHOD FOR THE PRODUCTION THEREOF |
-
1974
- 1974-07-17 NL NL7409642A patent/NL167798C/en not_active IP Right Cessation
-
1975
- 1975-06-24 ZA ZA4032A patent/ZA754032B/en unknown
- 1975-07-09 CA CA231,143A patent/CA1042059A/en not_active Expired
- 1975-07-14 BR BR7504445A patent/BR7504445A/en unknown
- 1975-07-14 AU AU83006/75A patent/AU500139B2/en not_active Expired
- 1975-07-14 GB GB29413/75A patent/GB1496949A/en not_active Expired
- 1975-07-14 SE SE7508010A patent/SE398414B/en not_active IP Right Cessation
- 1975-07-14 IT IT68833/75A patent/IT1036237B/en active
- 1975-07-14 AT AT540575A patent/AT341012B/en not_active IP Right Cessation
- 1975-07-15 BE BE158321A patent/BE831393A/en not_active IP Right Cessation
- 1975-07-15 ES ES439433A patent/ES439433A1/en not_active Expired
- 1975-07-15 JP JP8662075A patent/JPS5524652B2/ja not_active Expired
- 1975-07-16 FR FR7522220A patent/FR2279220A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
BE831393A (en) | 1976-01-15 |
DE2529697A1 (en) | 1976-01-29 |
GB1496949A (en) | 1978-01-05 |
AU500139B2 (en) | 1979-05-10 |
BR7504445A (en) | 1977-02-15 |
SE398414B (en) | 1977-12-19 |
ATA540575A (en) | 1977-05-15 |
ES439433A1 (en) | 1977-02-01 |
FR2279220B1 (en) | 1979-07-27 |
CA1042059A (en) | 1978-11-07 |
NL167798B (en) | 1981-08-17 |
AU8300675A (en) | 1977-01-20 |
NL167798C (en) | 1982-01-18 |
IT1036237B (en) | 1979-10-30 |
ZA754032B (en) | 1977-01-26 |
AT341012B (en) | 1978-01-10 |
NL7409642A (en) | 1976-01-20 |
JPS5524652B2 (en) | 1980-06-30 |
JPS5134663A (en) | 1976-03-24 |
FR2279220A1 (en) | 1976-02-13 |
DE2529697B2 (en) | 1977-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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