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JPS5559642A - Fluorescent indicating tube - Google Patents

Fluorescent indicating tube

Info

Publication number
JPS5559642A
JPS5559642A JP13299978A JP13299978A JPS5559642A JP S5559642 A JPS5559642 A JP S5559642A JP 13299978 A JP13299978 A JP 13299978A JP 13299978 A JP13299978 A JP 13299978A JP S5559642 A JPS5559642 A JP S5559642A
Authority
JP
Japan
Prior art keywords
hole
metal board
grid electrode
faces
brightness
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.)
Granted
Application number
JP13299978A
Other languages
Japanese (ja)
Other versions
JPS6215991B2 (en
Inventor
Masaaki Kobayashi
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.)
Noritake Itron Corp
Original Assignee
Ise Electronics Corp
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 Ise Electronics Corp filed Critical Ise Electronics Corp
Priority to JP13299978A priority Critical patent/JPS5559642A/en
Publication of JPS5559642A publication Critical patent/JPS5559642A/en
Publication of JPS6215991B2 publication Critical patent/JPS6215991B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE: To prevent the deterioration of the brightness and the characteristic, by constructing the grid electrode such that holes for penetrating the substrate is made in a plurality of grid electrode faces provided in parallel with the face of insulated substrate composed of metal board applied with insulation films on both faces.
CONSTITUTION: Insulated substrate 3a is made of 426 alloy, for example, having hole 3c, where frit glass 4b of approx. 20μm is coated through electric deposition, for example, on both faces of metal board 4a and the side wall of hole 3c. It is driven by applying positive potential against the filament on the metal board 4a of grid electrode 3. When passing through the hole 3c, the irradiated electron flows through the pin hole of frit glass 4b to the metal board 4a applied with positive potential to charge the side wall of hole 3c thus to disturve the field and electron flow and to prevent the deterioration of the brightness of the indicator.
COPYRIGHT: (C)1980,JPO&Japio
JP13299978A 1978-10-28 1978-10-28 Fluorescent indicating tube Granted JPS5559642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13299978A JPS5559642A (en) 1978-10-28 1978-10-28 Fluorescent indicating tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13299978A JPS5559642A (en) 1978-10-28 1978-10-28 Fluorescent indicating tube

Publications (2)

Publication Number Publication Date
JPS5559642A true JPS5559642A (en) 1980-05-06
JPS6215991B2 JPS6215991B2 (en) 1987-04-10

Family

ID=15094412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13299978A Granted JPS5559642A (en) 1978-10-28 1978-10-28 Fluorescent indicating tube

Country Status (1)

Country Link
JP (1) JPS5559642A (en)

Also Published As

Publication number Publication date
JPS6215991B2 (en) 1987-04-10

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