GB1223670A - Gas discharge display tube - Google Patents

Gas discharge display tube

Info

Publication number
GB1223670A
GB1223670A GB54901/69A GB5490169A GB1223670A GB 1223670 A GB1223670 A GB 1223670A GB 54901/69 A GB54901/69 A GB 54901/69A GB 5490169 A GB5490169 A GB 5490169A GB 1223670 A GB1223670 A GB 1223670A
Authority
GB
United Kingdom
Prior art keywords
anodes
electrodes
wire
nov
envelope
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
GB54901/69A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1223670A publication Critical patent/GB1223670A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/38Cold-cathode tubes
    • H01J17/48Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/491Display 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

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1,223,670. Glow discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 Nov., 1969 [13 Nov., 1968], No. 54901/69. Heading HID. A gas discharge display tube as claimed in Specification 1,182,050 includes within the envelope first and second, spaced apart, radiation permeable electrodes 22, 23 or electrode portions common to all the electrode groups and situated between the groups and a viewing window of the tube. The electrodes which prevent coupling between electrode groups comprise a pair of aligned or off-set rectangular gauzes, alternatively one of the electrodes may comprise a conductive coating on the inside of the window. In another embodiment wire is wound over an open frame such that the portion of wire on one side is at an angle to the portion of wire on the other side. The sides and base of the U-shaped anodes are provided with inwardly directed flanges to eliminate extraneous light near the bottom of the anodes. The anodes also have lugs which are clamped rigidly to a supporting mica strip 4. The anodecathode assembly is clamped in a U-shaped metal sheath and inserted into the envelope 1 which may be provided with a red filter.
GB54901/69A 1968-11-13 1969-11-10 Gas discharge display tube Expired GB1223670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6816125A NL6816125A (en) 1968-11-13 1968-11-13

Publications (1)

Publication Number Publication Date
GB1223670A true GB1223670A (en) 1971-03-03

Family

ID=19805132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54901/69A Expired GB1223670A (en) 1968-11-13 1969-11-10 Gas discharge display tube

Country Status (8)

Country Link
US (1) US3610995A (en)
AT (1) AT292137B (en)
BE (1) BE741596A (en)
DE (1) DE1953698A1 (en)
ES (1) ES373405A1 (en)
FR (1) FR2024850A1 (en)
GB (1) GB1223670A (en)
NL (1) NL6816125A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106128910A (en) * 2016-07-13 2016-11-16 深圳市槟城电子有限公司 A kind of thin patch gas-discharge tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244923A (en) * 1962-09-14 1966-04-05 Friden Inc Character representing glow discharge tube and system for selective excitation of the character representing electrodes thereof

Also Published As

Publication number Publication date
US3610995A (en) 1971-10-05
NL6816125A (en) 1970-05-15
BE741596A (en) 1970-05-12
AT292137B (en) 1971-08-10
FR2024850A1 (en) 1970-09-04
ES373405A1 (en) 1972-02-01
DE1953698A1 (en) 1970-06-11

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