EP1147543B1 - Röhrenhals für eine kathodenstrahlröhre - Google Patents
Röhrenhals für eine kathodenstrahlröhre Download PDFInfo
- Publication number
- EP1147543B1 EP1147543B1 EP99964456A EP99964456A EP1147543B1 EP 1147543 B1 EP1147543 B1 EP 1147543B1 EP 99964456 A EP99964456 A EP 99964456A EP 99964456 A EP99964456 A EP 99964456A EP 1147543 B1 EP1147543 B1 EP 1147543B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- tube neck
- cathode
- cylinder
- ray tube
- 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 - Lifetime
Links
Images
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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
-
- 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
Definitions
- the invention relates to a tube neck for a cathode ray tube out non-conductive material, especially ceramic.
- the invention further relates to a cathode ray tube.
- Conventional cathode ray tubes are usually with one Provided tube neck, which consists of glass and a metal Has anode and a metal focusing cylinder.
- the anode and focusing cylinders are part of it a known electron beam generator, which also a cathode, a control grid and a control grid subordinate screen grid includes.
- the focusing cylinder Especially in High resolution monitors require the focusing cylinder to be arranged centrally in the anode cylinder in order to to ensure sufficient image sharpness.
- German patent application 198 24 783.4 describes an electrode arrangement proposed, which comprises several electrodes and as an electron gun for focusing an electron beam serves.
- This electrode arrangement is monolithic made up of several ceramic layers.
- the present invention is based on the object To create a tube neck of the type mentioned, which improved image sharpness and improved high-voltage flashover behavior the tube.
- an anode and a focusing cylinder at the same time forms, the inside of the anode cylinder and the inside and Outside of the focusing cylinder with an electrically conductive Material is coated.
- Tube neck with a recess which has a connection for applying a focusing voltage.
- connection provided with an opening through which in the A cathode ray tube can create a vacuum.
- a glass bulb 1 a cathode ray tube essentially comprises one Tube neck 2, a funnel-shaped part 3, the one Anode terminal 4, and one with a luminescent layer 5 provided tube bottom 6.
- An inner coating of the glass bulb 1 consists of an electrically conductive covering, for. B. from an aluminum layer 7 which is used to derive the from a Cathode 8 on the luminous layer 5 emitted electrons serves, and from an outer coating of a graphite layer 9. Place the graphite layer 9 and the aluminum layer 7 represents a capacitor which is used to smooth the anode voltage serves.
- the tube neck 2 is an electron gun arranged, which is the cathode 8, a control grid 10, a screen grid 11 arranged downstream of the control grid 10 and a focusing device 12.
- the tube neck 2 is with a focusing cylinder made of sheet metal parts 13 and an anode cylinder 14 provided on connections 15 is connected to the aluminum layer 7.
- FIG. 1 in which a cylindrical Tube neck 16 made of ceramic material in one Side view is shown.
- the tube neck 16 has one essentially conical recess 17, which is provided with a metallic layer.
- This metallic layer it is possible to have a focusing voltage to apply to a focusing cylinder of the tube neck 16.
- a ball 18 is in the conical recess 17 can be used after an evacuation of the cathode ray tube the tube is sealed vacuum-tight.
- FIGS. 2 and 3 show the representation of the section A-A 'and Figure 3 is a perspective View of the tube neck 16 according to Figure 1. Die in the Figures 1, 2 and 3 are the same parts with the same reference numerals Mistake.
- the tube neck 16 comprises a focusing cylinder 19 and an anode cylinder 20, of which the Anode cylinder 20 on its inside and the focusing cylinder 19 on the inside and outside with one electrically conductive material 21 is coated.
- the usage of ceramic material for the manufacture of the tube neck 16 enables simple production of flat surfaces the focusing and anode cylinders 19, 20, which means that such a tube neck in a cathode ray tube very good image sharpness.
- the side faces the recess 17 are also electrical with this conductive material 21 coated on the Focusing cylinder 19 can be supplied with a focusing voltage.
- the tube neck 16 is with a in the German patent application 198 24 783.4 proposed ceramic electrode arrangement 22 provided for focusing the electron beam is provided.
- a cylindrical ceramic End cap 23 is used for the vacuum-tight cover of the Tube neck and the cathode ray tube.
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Description
- Figuren 1 bis 3
- einen Röhrenhals in einer Seitenansicht, in einer Schnittdarstellung und in einer perspektivischen Ansicht und
- Figur 4
- eine Prinzipdarstellung einer an sich bekannten Kathodenstrahlröhre.
Claims (6)
- Röhrenhals für eine Kathodenstrahlröhre aus nichtleitendem Material, insbesondere aus Keramik, dadurch gekennzeichnet, daß der Röhrenhals gleichzeitig einen Anodenund einen Fokussierzylinder bildet, wobei die Innenseite des Anodenzylinders (20) und die Innen- und Außenseite des Fokussierzylinders (19) mit einem elektrisch leitenden Material (21) beschichtet ist.
- Röhrenhals nach Anspruch 1, dadurch gekennzeichnet, daß der Röhrenhals (16) mit einer Ausnehmung (17) versehen ist, welche einen Anschluß zum Anlegen einer Fokussierspannung aufweist.
- Röhrenhals nach Anspruch 2, dadurch gekennzeichnet, daß der Anschluß eine Öffnung zum Evakuieren der Kathodenstrahlröhre aufweist.
- Röhrenhals nach Anspruch 2, dadurch gekennzeichnet, daß die Ausnehmung (17) im wesentlichen konusförmig ausgebildet ist und mit einer metallischen Schicht (21) zum Anlegen einer Fokussierspannung versehen ist.
- Röhrenhals nach Anspruch 4, dadurch gekennzeichnet, daß zum vakuumdichten Verschließen der Kathodenstrahlröhre ein im wesentlichen kugelförmiges Verschlußmittel (18) in die Ausnehmung (17) einsetzbar ist.
- Kathodenstrahlröhre mit einem Röhrenhals nach einem der Ansprüche 1 bis 5.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29823118U | 1998-12-28 | ||
DE29823118U DE29823118U1 (de) | 1998-12-28 | 1998-12-28 | Röhrenhals für eine Kathodenstrahlröhre |
PCT/DE1999/004061 WO2000039834A1 (de) | 1998-12-28 | 1999-12-21 | Röhrenhals für eine kathodenstrahlröhre |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1147543A1 EP1147543A1 (de) | 2001-10-24 |
EP1147543B1 true EP1147543B1 (de) | 2004-05-06 |
Family
ID=8067233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99964456A Expired - Lifetime EP1147543B1 (de) | 1998-12-28 | 1999-12-21 | Röhrenhals für eine kathodenstrahlröhre |
Country Status (6)
Country | Link |
---|---|
US (1) | US6504296B2 (de) |
EP (1) | EP1147543B1 (de) |
JP (1) | JP2003529890A (de) |
AT (1) | ATE266255T1 (de) |
DE (2) | DE29823118U1 (de) |
WO (1) | WO2000039834A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7164629B2 (en) * | 2002-01-22 | 2007-01-16 | Ricoh Company, Ltd. | Method of controlling an optical disk apparatus |
US6891321B2 (en) * | 2002-11-12 | 2005-05-10 | Ge Medical Systems Global Technology Company, Llc | Oil-free electron source having cathode and anode members adjustable with five degrees of freedom |
US6952466B2 (en) * | 2002-11-12 | 2005-10-04 | Ge Medical Systems Global Technology Company, Llc | Oil-free electron source for an EBT scanner |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3383537A (en) * | 1965-10-07 | 1968-05-14 | Rank Organisation Ltd | Metal/ceramic cathode ray tube |
NL7208728A (de) * | 1971-07-28 | 1973-12-28 | ||
DE2649617A1 (de) | 1975-10-31 | 1977-05-12 | Nippon Telegraph & Telephone | Electronenroehre mit einem hohlzylindrischen keramikabschnitt |
GB1598888A (en) | 1978-05-30 | 1981-09-23 | Philips Electronic Associated | Electron display tubes |
NL7809345A (nl) * | 1978-09-14 | 1980-03-18 | Philips Nv | Kathodestraalbuis. |
US4350925A (en) | 1980-07-09 | 1982-09-21 | Rca Corporation | Main lens assembly for an electron gun |
US4585976A (en) * | 1982-01-19 | 1986-04-29 | Hewlett-Packard Company | Beam penetration CRT with internal automatic constant deflection factor and pattern correction |
JPS60182646A (ja) | 1984-02-29 | 1985-09-18 | Nec Corp | 電子銃電極構体 |
JPS60218743A (ja) * | 1984-04-13 | 1985-11-01 | Nec Corp | 電子銃電極構体 |
JP2542627B2 (ja) | 1987-08-05 | 1996-10-09 | 株式会社東芝 | カラ−受像管装置 |
US5894190A (en) * | 1996-03-22 | 1999-04-13 | Hitachi, Ltd. | Color cathode ray tube having a large-diameter lens |
DE19824783A1 (de) | 1998-06-03 | 1999-12-16 | Siemens Ag | Vorrichtung zur Formung eines Elektronenstrahls, Verfahren zur Herstellung der Vorrichtung und Anwendung |
-
1998
- 1998-12-28 DE DE29823118U patent/DE29823118U1/de not_active Expired - Lifetime
-
1999
- 1999-12-21 JP JP2000591647A patent/JP2003529890A/ja not_active Withdrawn
- 1999-12-21 WO PCT/DE1999/004061 patent/WO2000039834A1/de active IP Right Grant
- 1999-12-21 EP EP99964456A patent/EP1147543B1/de not_active Expired - Lifetime
- 1999-12-21 DE DE59909428T patent/DE59909428D1/de not_active Expired - Fee Related
- 1999-12-21 AT AT99964456T patent/ATE266255T1/de not_active IP Right Cessation
-
2001
- 2001-06-28 US US09/893,001 patent/US6504296B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE29823118U1 (de) | 1999-02-25 |
EP1147543A1 (de) | 2001-10-24 |
JP2003529890A (ja) | 2003-10-07 |
US6504296B2 (en) | 2003-01-07 |
DE59909428D1 (de) | 2004-06-09 |
US20020003395A1 (en) | 2002-01-10 |
ATE266255T1 (de) | 2004-05-15 |
WO2000039834A1 (de) | 2000-07-06 |
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