US1933832A - Glow tube - Google Patents
Glow tube Download PDFInfo
- Publication number
- US1933832A US1933832A US375524A US37552429A US1933832A US 1933832 A US1933832 A US 1933832A US 375524 A US375524 A US 375524A US 37552429 A US37552429 A US 37552429A US 1933832 A US1933832 A US 1933832A
- Authority
- US
- United States
- Prior art keywords
- anode
- glow tube
- glow
- frame
- cathode
- 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
- H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
- H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
Definitions
- a controlling electrode is also constructed in the form of a frame, which preferably corresponds to the shape of the anode frame.
- the frames may for instance be constituted by pieces of bent wire and, if desired, be strengthened against one another by insulating members in order to maintain a definite distance between them.
- Figure 1 illustrates the arrangement of the electrodes according to the invention, in perspective view
- Figure 2 shows a modification comprising a controlling electrode arranged between the cath- 'ode and the anode.
- 1 is the anode, which is constituted by a simple frame of bent wire
- 2 is the cathode consisting in a known manner of a plate the contour of which corresponds to the shape of the anode frame 1.
- a controlling electrode 3 is arrangedbetween the anode 1 and the cathode 2, which controlling electrode is constructed in the form of a wire frame like the anode l.
- anode and the controlling electrode may be made of a stamped sheet metal frame, of this casting, or the like.
- a glow tube for the reception of pictures from a distance, for talking films and the like having a glow cathode in the form of a plate, and an 35 andde in the form of an open frame the bars thereof being all in a plane with the edges of the cathode plate.
Description
Nov. 7, 1933.
D. VON MlHALY 33,832
GLOW TUBE Filed July 2, -1929 Fig.1. 1
Patented Nov. 7,. 1933 UNITED STATES PATENT OFFICE GLOW TUBE Dnes von Mihaly, Berlin-Wilmersdorf, Germany,
assignor to Telehor Aktien Gesellschaft, Berlin-Charlottenburg, Germany Application July 2, 1929, Serial No. 375,524, and in Germany August 21, 1928 1 Claim. (Cl. 176-122) drops, the luminous glow disappears simulta-- neously practically over the whole of the surface and similarly the fighting up takes place simultaneously at all points.
If, as is the case with glow lamps of the character referred to as hitherto known, a spot is formed at the moment when the lamp is extinguished or lit up by a fighting up of the lumigg nous glow at various points, it may happen that a part of the picture assembling device, for instance a hole in the Nipkow disc through which a' picture element is to be reproduced, will pass in front of a portion of the cathode surface which remained dar whereby the reproduction would be detrimentally affected. The drawback above referred to is avoided by the present invention in which use is made of a large glowing surface, the illumination of which is uniform.
If use is made of a controlling electrode, the latter is also constructed in the form of a frame, which preferably corresponds to the shape of the anode frame.
The frames may for instance be constituted by pieces of bent wire and, if desired, be strengthened against one another by insulating members in order to maintain a definite distance between them.
The invention is illustrated by way of example in the accompanying drawing, in which Figure 1 illustrates the arrangement of the electrodes according to the invention, in perspective view, whilst Figure 2 shows a modification comprising a controlling electrode arranged between the cath- 'ode and the anode.
In the drawing, 1 is the anode, which is constituted by a simple frame of bent wire, and 2 is the cathode consisting in a known manner of a plate the contour of which corresponds to the shape of the anode frame 1.
In the modification illustrated in Figure 2, a controlling electrode 3 is arrangedbetween the anode 1 and the cathode 2, which controlling electrode is constructed in the form of a wire frame like the anode l.
Instead of making the anode and the controlling electrode of bent wire, they may be made of a stamped sheet metal frame, of this casting, or the like.
What I claim is:-
A glow tube for the reception of pictures from a distance, for talking films and the like, having a glow cathode in the form of a plate, and an 35 andde in the form of an open frame the bars thereof being all in a plane with the edges of the cathode plate.
DENIES voir many.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1933832X | 1928-08-21 | ||
GB1915229A GB335258A (en) | 1929-06-21 | 1929-06-21 | Improvements in and relating to television receiving apparatus using electric glow discharge lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
US1933832A true US1933832A (en) | 1933-11-07 |
Family
ID=26011414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US375524A Expired - Lifetime US1933832A (en) | 1928-08-21 | 1929-07-02 | Glow tube |
Country Status (3)
Country | Link |
---|---|
US (1) | US1933832A (en) |
FR (1) | FR680616A (en) |
NL (1) | NL27739C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5218269A (en) * | 1991-11-29 | 1993-06-08 | Gte Products Corporation | Negative glow discharge lamp having wire anode |
-
1929
- 1929-07-02 US US375524A patent/US1933832A/en not_active Expired - Lifetime
- 1929-08-20 NL NL47728A patent/NL27739C/xx active
- 1929-08-21 FR FR680616D patent/FR680616A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5218269A (en) * | 1991-11-29 | 1993-06-08 | Gte Products Corporation | Negative glow discharge lamp having wire anode |
Also Published As
Publication number | Publication date |
---|---|
FR680616A (en) | 1930-05-02 |
NL27739C (en) | 1932-09-15 |
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