GB1330448A - Television camera tube - Google Patents
Television camera tubeInfo
- Publication number
- GB1330448A GB1330448A GB3042872A GB3042872A GB1330448A GB 1330448 A GB1330448 A GB 1330448A GB 3042872 A GB3042872 A GB 3042872A GB 3042872 A GB3042872 A GB 3042872A GB 1330448 A GB1330448 A GB 1330448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aperture
- anode
- diameter
- diaphragm
- foil
- 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
- H01J31/26—Image pick-up tubes having an input of visible light and electric output
- H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
- H01J31/34—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at cathode potential, e.g. orthicon
- H01J31/38—Tubes with photoconductive screen, e.g. vidicon
-
- 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
- H01J29/48—Electron guns
- H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes
-
- 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
- H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
-
- 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
- H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
1330448 Electron guns PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 June 1972 [2 July 1971] 30428/72 Heading H1D An electron gun for a vidicon comprises a cathode 30 (Fig. 3), a grid 31, an anode 32 having an aperture the smallest diameter of which is at most 0À150 mm. and at least equal to the diameter of the beam, and a hollow cylindrical electrode 35 provided with a diaphragm 36 having an aperture the smallest diameter of which is at most 10% of the distance between it and the anode aperture. As illustrated the anode may comprise an apertured plate covered by a foil 42 including an aperture of 0À1 mm. diameter, the foil acting to intercept the beam of electrons returned from the target whilst allowing uninterrupted passage of the primary electron beam 38. The beam forms a cross-over at 39 and continues as a beam 40 which is restricted to the portion 41 by the diaphragm 36.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7109170A NL7109170A (en) | 1971-07-02 | 1971-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1330448A true GB1330448A (en) | 1973-09-19 |
Family
ID=19813538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3042872A Expired GB1330448A (en) | 1971-07-02 | 1972-06-29 | Television camera tube |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5343768B1 (en) |
AU (1) | AU471912B2 (en) |
BE (1) | BE785749A (en) |
CA (1) | CA950955A (en) |
DE (1) | DE2231519A1 (en) |
FR (1) | FR2144743B1 (en) |
GB (1) | GB1330448A (en) |
IT (1) | IT956931B (en) |
NL (1) | NL7109170A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54129871A (en) * | 1978-02-13 | 1979-10-08 | Philips Nv | Device having camera tube |
GB2015195A (en) * | 1978-02-15 | 1979-09-05 | Tektronix Inc | Cathode Ray Tube Having Low Voltage Focus and Dynamic Correction |
NL7809345A (en) * | 1978-09-14 | 1980-03-18 | Philips Nv | CATHED BEAM TUBE. |
US5287038A (en) * | 1992-05-14 | 1994-02-15 | Litton Systems, Inc. | High resolution electron gun |
EP0589522B1 (en) * | 1992-09-25 | 1997-03-05 | Koninklijke Philips Electronics N.V. | Cathode-ray tube |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032419B (en) * | 1938-04-05 | 1958-06-19 | Loewe Opta Ag | Braun tube |
NL160428C (en) * | 1968-02-13 | 1979-10-15 | Philips Nv | IMAGE RECORDING DEVICE WITH IMAGE RECORDING TUBE AND IMAGE RECORDING TUBE FOR SUCH DEVICE. |
-
0
- BE BE785749D patent/BE785749A/en unknown
-
1971
- 1971-07-02 NL NL7109170A patent/NL7109170A/xx not_active Application Discontinuation
-
1972
- 1972-06-28 AU AU44006/72A patent/AU471912B2/en not_active Expired
- 1972-06-28 IT IT2636972A patent/IT956931B/en active
- 1972-06-28 DE DE19722231519 patent/DE2231519A1/en not_active Ceased
- 1972-06-28 CA CA145,876,A patent/CA950955A/en not_active Expired
- 1972-06-29 GB GB3042872A patent/GB1330448A/en not_active Expired
- 1972-06-29 JP JP6453372A patent/JPS5343768B1/ja active Pending
- 1972-07-03 FR FR7224008A patent/FR2144743B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7109170A (en) | 1973-01-04 |
CA950955A (en) | 1974-07-09 |
FR2144743B1 (en) | 1977-04-01 |
DE2231519A1 (en) | 1973-01-11 |
AU471912B2 (en) | 1976-05-06 |
BE785749A (en) | 1973-01-02 |
AU4400672A (en) | 1974-01-03 |
FR2144743A1 (en) | 1973-02-16 |
JPS5343768B1 (en) | 1978-11-22 |
IT956931B (en) | 1973-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |