US3239708A - Laterally spaced electrode mounts for electron guns - Google Patents
Laterally spaced electrode mounts for electron guns Download PDFInfo
- Publication number
- US3239708A US3239708A US423430A US42343065A US3239708A US 3239708 A US3239708 A US 3239708A US 423430 A US423430 A US 423430A US 42343065 A US42343065 A US 42343065A US 3239708 A US3239708 A US 3239708A
- Authority
- US
- United States
- Prior art keywords
- electron
- electrodes
- rods
- spaced
- laterally spaced
- 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
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
Definitions
- Another object of this invention is to provide electron gun assemblies which may be made smaller and shorter than with conventional techniques.
- the various electron gun parts are mounted between and afiixed to two longitudinal glass rods.
- Such parts were held by a single strap; or when more firmness was required, dual straps were mounted with vertical spacing along the rods.
- This sort of mounting technique permitted slight misalignment of the parts relative to the axis of the beam as caused by relative bending and displacement of parts under the stress of thermal expansion or vibration. Such variations are not tolerable when smaller guns are formed and closer tolerances are required.
- FIGURE 1 is a side view, partly in section, of an electron gun assembly
- FIGURE 2 is a top view, in section, taken along lines II-II of FIGURE 1.
- cathode 3 mounted in ceramic 3,239,708 Patented Mar. 8, 1966 'ice disc 4 and held within grid cup 5 with other electrodes 6, etc, mounted axially along the path 7 of the electron beam is shown in FIGURE 1.
- the cathode 3 is conventionally mounted within grid cup 5, but this grid cup and all other beam forming electrodes 6, etc., are mounted onto glass rods 8 and 9 by straps 10 shaped as shown in FIGURE 2.
- the straps 10, 10' etc. are so constructed on all the beam forming electrodes in accordance with the concepts of this invention.
- the glass rods 8 and 9 are constructed thinner and wider than conventional rods to receive the spaced prongs or arms 11 and 12 of the strap 10 extending from the outer surface of electrode 14 in a span spaced transversely in a plane perpendicular to the beam axis as shown in FIGURE 2.
- the strap is welded to electrode 14 at its inner extremity over a curvature following the contour of the electrode, and has its prongs 11 and 12 embedded in glass rod 9.
- the salient features of this invention reside in a strap mounted on a beam forming electrode such as a grid or focus anode and having two laterally positioned prongs for insertion into a single glass rod located parallel to the beam.
- a beam forming electrode such as a grid or focus anode and having two laterally positioned prongs for insertion into a single glass rod located parallel to the beam.
- an electron gun assembly with a series of apertured beam forming electrodes mounted to define at least one electron path disposed between at least two insulating mounting rods
- the improvement comprising, widened rods, and mounts afiixed to said apertured electrodes at a plurality of positions each with two spaced arms extending from two positions on the surface of the electrodes in a plane substantially perpendicular to the electron beam path with said two arms embedded in each of the widened rods at two spaced positions transversely of said electron path in said plane in each rod.
- mounts are U-shaped strap members spaced on opposite sides of said electrodes to extend into the rods.
- Electrodes are cup shaped and the strap members comprise an innermost portion having a surface with curvature following the cup shaped curvature of the electrodes affixed thereto at this surface.
Landscapes
- Electron Sources, Ion Sources (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US423430A US3239708A (en) | 1965-01-05 | 1965-01-05 | Laterally spaced electrode mounts for electron guns |
GB48881/65A GB1063147A (en) | 1965-01-05 | 1965-11-17 | Electron gun mounting structure |
DE19651514102 DE1514102A1 (de) | 1965-01-05 | 1965-12-08 | Elektronenstrahlerzeuger |
NL6517030A NL6517030A (fr) | 1965-01-05 | 1965-12-28 | |
FR44779A FR1462795A (fr) | 1965-01-05 | 1966-01-04 | Perfectionnements aux canons à électrons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US423430A US3239708A (en) | 1965-01-05 | 1965-01-05 | Laterally spaced electrode mounts for electron guns |
Publications (1)
Publication Number | Publication Date |
---|---|
US3239708A true US3239708A (en) | 1966-03-08 |
Family
ID=23678888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US423430A Expired - Lifetime US3239708A (en) | 1965-01-05 | 1965-01-05 | Laterally spaced electrode mounts for electron guns |
Country Status (5)
Country | Link |
---|---|
US (1) | US3239708A (fr) |
DE (1) | DE1514102A1 (fr) |
FR (1) | FR1462795A (fr) |
GB (1) | GB1063147A (fr) |
NL (1) | NL6517030A (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543071A (en) * | 1968-10-14 | 1970-11-24 | Kentucky Electronics Inc | Electrode with wing-shaped brackes for cathode ray tubes |
US3594601A (en) * | 1970-01-28 | 1971-07-20 | Kentucky Electronics Corp | Holder and mounting means for ceramic crt cathode ring |
US3777210A (en) * | 1972-10-30 | 1973-12-04 | Rca Corp | Electron gun and method of assembly |
US4061942A (en) * | 1975-12-17 | 1977-12-06 | International Standard Electric Corporation | In line gun support arrangement with expansion compensation |
US4618800A (en) * | 1983-02-17 | 1986-10-21 | Rank Electronic Tubes, Inc. | Precision electrode alignment |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2808527A (en) * | 1955-11-22 | 1957-10-01 | Gen Electric | Cathode support strap |
US2897391A (en) * | 1957-04-02 | 1959-07-28 | George B Erskine | Studded electrode and method of manufacture |
US2909689A (en) * | 1955-09-12 | 1959-10-20 | Gen Electric | Support strap for electron gun structures |
US3018400A (en) * | 1959-08-24 | 1962-01-23 | Thomas Electronics Inc | Cathode ray tube |
US3085172A (en) * | 1959-03-11 | 1963-04-09 | Corning Glass Works | Cathode ray tube gun assembly |
US3134923A (en) * | 1960-08-22 | 1964-05-26 | Rca Corp | Plural parallel electron-guns |
-
1965
- 1965-01-05 US US423430A patent/US3239708A/en not_active Expired - Lifetime
- 1965-11-17 GB GB48881/65A patent/GB1063147A/en not_active Expired
- 1965-12-08 DE DE19651514102 patent/DE1514102A1/de active Pending
- 1965-12-28 NL NL6517030A patent/NL6517030A/xx unknown
-
1966
- 1966-01-04 FR FR44779A patent/FR1462795A/fr not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2909689A (en) * | 1955-09-12 | 1959-10-20 | Gen Electric | Support strap for electron gun structures |
US2808527A (en) * | 1955-11-22 | 1957-10-01 | Gen Electric | Cathode support strap |
US2897391A (en) * | 1957-04-02 | 1959-07-28 | George B Erskine | Studded electrode and method of manufacture |
US3085172A (en) * | 1959-03-11 | 1963-04-09 | Corning Glass Works | Cathode ray tube gun assembly |
US3018400A (en) * | 1959-08-24 | 1962-01-23 | Thomas Electronics Inc | Cathode ray tube |
US3134923A (en) * | 1960-08-22 | 1964-05-26 | Rca Corp | Plural parallel electron-guns |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543071A (en) * | 1968-10-14 | 1970-11-24 | Kentucky Electronics Inc | Electrode with wing-shaped brackes for cathode ray tubes |
US3594601A (en) * | 1970-01-28 | 1971-07-20 | Kentucky Electronics Corp | Holder and mounting means for ceramic crt cathode ring |
US3777210A (en) * | 1972-10-30 | 1973-12-04 | Rca Corp | Electron gun and method of assembly |
US4061942A (en) * | 1975-12-17 | 1977-12-06 | International Standard Electric Corporation | In line gun support arrangement with expansion compensation |
US4618800A (en) * | 1983-02-17 | 1986-10-21 | Rank Electronic Tubes, Inc. | Precision electrode alignment |
Also Published As
Publication number | Publication date |
---|---|
DE1514102A1 (de) | 1969-05-22 |
NL6517030A (fr) | 1966-07-06 |
GB1063147A (en) | 1967-03-30 |
FR1462795A (fr) | 1966-12-16 |
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