GB735524A - Improvements in or relating to receivers for reproducing coloured or stereoscopic television images - Google Patents
Improvements in or relating to receivers for reproducing coloured or stereoscopic television imagesInfo
- Publication number
- GB735524A GB735524A GB18859/52A GB1885952A GB735524A GB 735524 A GB735524 A GB 735524A GB 18859/52 A GB18859/52 A GB 18859/52A GB 1885952 A GB1885952 A GB 1885952A GB 735524 A GB735524 A GB 735524A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- screen
- colour
- strips
- grids
- 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
- 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
- H01J31/22—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for stereoscopic displays
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/22—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information
- H04N9/26—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information using electron-optical colour selection means, e.g. line grid, deflection means in or near the gun or near the phosphor screen
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
735,524. Colour and stereoscopic television tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1952 [July 28, 1951]; No. 18859/52. Class 39 (1). In a colour or stereoscopic television receiver the electron beam before striking the luminescent or incandescent screen passes through two parallel wire grids 1, 2 in which the wires of one grid lie centrally behind the apertures of the other grid, the direct voltages on the grids and the field electrode 3 are higher than the cathode voltage, and an alternating voltage supplied to at least one grid produces a displacement of the point of impact of the beam on the screen for scanning different colour bands. The field electrode may be the luminescent screen itself which if not conductive should contain metal elements, or it is a metal grid or layer near to or integral with and on either side of the screen. The spacing of the grids is small and may be a fifth of the grid-field electrode spacing. The screen may carry strips of different luminescent materials or be backed by a filter composed of strips with different colour absorptions; alternatively the scanning image is focused on to a screen painted in strips of different colours arranged parallel to the grid wires. The colour filter may be replaced by polarizing filters for stereoscopic reproduction. Specifications 733,176 and 735,525 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL303108X | 1951-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB735524A true GB735524A (en) | 1955-08-24 |
Family
ID=19783391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18859/52A Expired GB735524A (en) | 1951-07-28 | 1952-07-25 | Improvements in or relating to receivers for reproducing coloured or stereoscopic television images |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE513151A (en) |
| CH (1) | CH303108A (en) |
| DE (1) | DE956412C (en) |
| FR (1) | FR1144033A (en) |
| GB (1) | GB735524A (en) |
| NL (1) | NL162980B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL135376C (en) * | 1963-01-25 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE736575C (en) * | 1938-07-11 | 1943-06-22 | Fernseh Gmbh | Cathode ray tubes for generating multicolored images on a fluorescent screen |
| US2446791A (en) * | 1946-06-11 | 1948-08-10 | Rca Corp | Color television tube |
-
0
- NL NL7116640.A patent/NL162980B/en unknown
- BE BE513151D patent/BE513151A/xx unknown
-
1952
- 1952-07-25 GB GB18859/52A patent/GB735524A/en not_active Expired
- 1952-07-25 DE DEN5847A patent/DE956412C/en not_active Expired
- 1952-07-25 FR FR1144033D patent/FR1144033A/en not_active Expired
- 1952-07-26 CH CH303108D patent/CH303108A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1144033A (en) | 1957-10-08 |
| DE956412C (en) | 1957-01-17 |
| BE513151A (en) | |
| CH303108A (en) | 1954-11-15 |
| NL162980B (en) |
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