DE615819C - Fluorescent screen, especially for Braun tubes - Google Patents

Fluorescent screen, especially for Braun tubes

Info

Publication number
DE615819C
DE615819C DEP66946D DEP0066946D DE615819C DE 615819 C DE615819 C DE 615819C DE P66946 D DEP66946 D DE P66946D DE P0066946 D DEP0066946 D DE P0066946D DE 615819 C DE615819 C DE 615819C
Authority
DE
Germany
Prior art keywords
fluorescent screen
braun tubes
braun
adhesive
quartz
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
Application number
DEP66946D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAX A E PRESSLER
Original Assignee
MAX A E PRESSLER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAX A E PRESSLER filed Critical MAX A E PRESSLER
Priority to DEP66946D priority Critical patent/DE615819C/en
Application granted granted Critical
Publication of DE615819C publication Critical patent/DE615819C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

Fluoreszenzschirm, insbesondere für Braunsche Röhren Zusatz zum Patent 615 3,5 Im Hauptpatent 6 15 3 15 ist :ein neuartiger, vor allem für Braunsche Röhren geeigneter Fluoreszenzschirm geschützt, dessen wesentliches Kennzeichen darin bestand, daß er neben der eigentlichen Fluoreszenzmasse fein pulvrisiertes Glas als Haftmittel enthält.Fluorescent screen, especially for Braun tubes Addition to patent 615 3.5 The main patent 6 1 5 3 1 5 is: a new type of fluorescent screen, especially suitable for Braun tubes, whose main characteristic was that it was finely powdered glass in addition to the actual fluorescent mass contains as an adhesive.

Es hat sich gezeigt, daß man derartige Schirme in noch feinkörnigerer, durchscheinenderer und leuchtkräftigerer Form erzielen kann, wenn man an Stelle von Glas fein pulvrisierten Quarz als Haft- Lund Aufschlämmmittel benutzt. Der Grund hierfür dürfte einer-: seits in der größeren Sprödigkeit, andererseits in der höheren chemischen Beständigkeit des Quarzes liegen. Weiterhin zeigen Schirme, welche fein gepulverten Quarz als Haftmittel enthalten, eine bessere Beständigkeit gegenüber dem Elektronenbombardement von Kathodenstrahlen, d. h. die Schirme verfärben sich nicht mehr und werden auch nicht so leicht angestochen bzw. zur Gasabgabe gebracht. Der Grund hierfür dürfte einerseits wiederum in der höheren Chemischen Beständigkeit, andererseits. in dem hohen Schmelzpunkt des Quarzes liegen.It has been shown that such umbrellas can be used in even finer-grained, More translucent and more luminous shape can be achieved if one is in place Quartz, finely powdered from glass, is used as an adhesive and slurry agent. The reason for this, on the one hand, in the greater brittleness, on the other hand in the higher chemical resistance of the quartz. Furthermore, umbrellas show which ones are fine containing powdered quartz as an adhesive, better resistance to electron bombardment from cathode rays, d. H. the screens change color no longer and are not so easily pierced or caused to release gas. The reason for this is on the one hand the higher chemical resistance, on the other hand. lie in the high melting point of quartz.

Claims (1)

PATENTANSPRUCH: Fluoreszenzschirm, insbesondere für Braunsche Röhren nach Patent 615315, dadurch gekennzeichnet, daß der Schirm an Stelle von Glaspulver fein pulvrisierten Quarz. als Haftmittel enthält.PATENT CLAIM: Fluorescent screen, especially for Braun tubes according to patent 615315, characterized in that the screen instead of glass powder finely powdered quartz. contains as an adhesive.
DEP66946D 1933-02-01 1933-02-01 Fluorescent screen, especially for Braun tubes Expired DE615819C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP66946D DE615819C (en) 1933-02-01 1933-02-01 Fluorescent screen, especially for Braun tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP66946D DE615819C (en) 1933-02-01 1933-02-01 Fluorescent screen, especially for Braun tubes

Publications (1)

Publication Number Publication Date
DE615819C true DE615819C (en) 1935-07-12

Family

ID=7390912

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP66946D Expired DE615819C (en) 1933-02-01 1933-02-01 Fluorescent screen, especially for Braun tubes

Country Status (1)

Country Link
DE (1) DE615819C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234330B (en) * 1960-05-19 1967-02-16 Gen Electric Method of manufacturing a storage electrode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234330B (en) * 1960-05-19 1967-02-16 Gen Electric Method of manufacturing a storage electrode

Similar Documents

Publication Publication Date Title
DE615819C (en) Fluorescent screen, especially for Braun tubes
GB529593A (en) Improvements in and relating to glass-to-metal seals
GB519302A (en) Improvements in magnesium alloys
GB1077474A (en) Phosphor storage target and methods of manufacture
AT144607B (en) Cathode ray tube.
DE640056C (en) Luminous screen in Braun tubes for televisions or the like.
AT125878B (en) Cold weather fluorescent tube.
DE447043C (en) Fluorescent screen
DE736762C (en) Melt for connecting parts of electrical discharge vessels made of iron or alloyed steel with parts made of glass or ceramic
DE727596C (en) Luminous screen for electrical discharge vessels
GB407540A (en) Improvements in or relating to luminescent screens and methods of producing luminophores for use therein
DE697580C (en) Electric discharge lamp or fluorescent tube with a filling of noble gases and mercury and a phosphor layer
DE898042C (en) Fluorescent screen for cathode ray tubes
DE719230C (en) Manufacture of silicate luminophores
DE682660C (en) Manufacture of phosphors, in particular for converting cathode ray energy into visible light
DE713253C (en) Two-chamber enamel tube
AT299336B (en) Material for the post-acceleration spiral of cathode ray tubes
GB551176A (en) Improvements relating to cathode-ray tube screens
GB350605A (en) Improvements in or relating to electronic discharge apparatus
AT127159B (en) Process for the production of hot cathodes for electric discharge tubes.
AT202602B (en) Television receiver tube with a fluorescent screen
GB516620A (en) Improvements in cathode ray tubes
DE640929C (en) Luminescent screen in discharge tubes, especially Braun tubes
GB498914A (en) Improved electric discharge tube comprising a fluorescent screen
DE820044C (en) Electron tube with fluorescent screen