SU1199207A3 - Shadow mask cathode-ray tube - Google Patents

Shadow mask cathode-ray tube Download PDF

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Publication number
SU1199207A3
SU1199207A3 SU772530654A SU2530654A SU1199207A3 SU 1199207 A3 SU1199207 A3 SU 1199207A3 SU 772530654 A SU772530654 A SU 772530654A SU 2530654 A SU2530654 A SU 2530654A SU 1199207 A3 SU1199207 A3 SU 1199207A3
Authority
SU
USSR - Soviet Union
Prior art keywords
mask
columns
shadow mask
ray tube
distance
Prior art date
Application number
SU772530654A
Other languages
Russian (ru)
Inventor
Максвелл Моррелл Альберт
Original Assignee
Рка Корпорейшн (Фирма)
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
Priority claimed from US05/729,349 external-priority patent/US4072876A/en
Priority claimed from US05/729,592 external-priority patent/US4136300A/en
Application filed by Рка Корпорейшн (Фирма) filed Critical Рка Корпорейшн (Фирма)
Application granted granted Critical
Publication of SU1199207A3 publication Critical patent/SU1199207A3/en

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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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0788—Parameterised dimensions of aperture plate, e.g. relationships, polynomial expressions

Abstract

CATHODE RAY TUBE HAVING IMPROVED SHADOW MASK A shadow mask type of cathode ray tube, wherein the mask has a plurality of slit-shaped apertures therethrough aligned in columns, is improved by parallel corrugation of the mask. The peak-to-peak wavelength dimension of the corrugations is at least twice as great as the spacing between adjacent aperture columns.

Description

Изобретение относитс  к электрон ной технике, в частности к технике j;Be. катодно-лучевых трубок, снабженных теневыми масками. Целью изобретени   вл етс  повышение прочности и жесткости маски за счет искривлени  ее поверхности. На чертеже представлена конструк тивна  схема экранно-масочного узла катодно-лучевой трубки. Представленньй узел содержит фронтальную плоскую панель 1 экрана и теневую маску 2, св занную с панелью 1 с помощью элементов 3 креплени  и поддерживающих планок 4. Маска 2 выполнена со множеством щелевидных отверстий 5, расположенных параллельными колонками. По направлению расположени  колонок отверстий 5 маска 2 выполнена с гоф рами, имеющими вид плавной волны. 7 Ограничение снизу на рассто ние между смежными пиками гофров соответствует максимальной частоте волны гофров, а ограничение сверху соответствует нали ию по крайней мере одному периоду волны гофрировки. Элементы 3 креплени  маски целесообразно выполн ть эластичными, а поддерживающую планку 4 располагать по центральной линии профил  гофрированной маски. Возможны и другие схемы креплени . Тенева  маска, выполненна  с гофрами и соответствующим образом закрепленна , деформируетс  при нагреве таким образом, что незначительно смещаютс  к панели или от нее пики гофров, причем это смещение значительно меньше, чем в масках с плоской или слабо изогнутой поверхностью.This invention relates to an electronic technique, in particular to a j; Be technique. cathode ray tubes equipped with shadow masks. The aim of the invention is to increase the strength and rigidity of the mask due to the curvature of its surface. The drawing shows the structural scheme of the screen-mask assembly of the cathode ray tube. The present assembly comprises a front flat panel 1 of the screen and a shadow mask 2 connected to the panel 1 by means of the fastening elements 3 and the supporting bars 4. The mask 2 is made with a plurality of slit-like holes 5 arranged in parallel columns. In the direction of the columns of the holes 5, the mask 2 is made with corrugations having the form of a smooth wave. 7 The lower bound on the distance between adjacent peaks of the corrugations corresponds to the maximum frequency of the wave of the corrugations, and the upper limit corresponds to the presence of at least one period of the corrugation wave. The mask fastening elements 3 are advantageously made elastic, and the support bar 4 is positioned along the center line of the corrugated mask profile. Other mounting patterns are possible. A shadow mask, made with corrugations and suitably fixed, is deformed when heated in such a way that the corrugations peaks slightly to or away from the panel, and this shift is significantly less than in masks with a flat or slightly curved surface.

Claims (1)

КАТОДНО-ЛУЧЕВАЯ ТРУБКА С ТЕНЕВОЙ МАСКОЙ, содержащая катод, фокусирующе-отклоняющую систему, экран и теневую маску с множест- вом щелевых отверстий, расположенных параллельными колонками, выполненную с периодическими изгибами в направлении колонок и прикрепленную к трубке при помощи удерживающих устройств во множестве точек вдоль' изогнутых сторон, отличающаяся тем, что, с целью повышения прочности и жесткости маски, периодические изгибы образованы плавными гофрами, расстояние между смежными пиками которых по крайней мере в два раза больше расстояния между колонками отверстий и не превышает произведения числа колонок отверстий на расстояние между колонками, измеренное по контуру маски.A CATHODE BEAM TUBE WITH A SHADOW MASK containing a cathode, a focusing-deflecting system, a screen and a shadow mask with a plurality of slit holes arranged in parallel columns, made with periodic bends in the column direction and attached to the tube by means of holding devices in a number of points along '' of curved sides, characterized in that, in order to increase the strength and rigidity of the mask, periodic bends are formed by smooth corrugations, the distance between adjacent peaks of which is at least twice as large earlier than the distance between the columns of the holes and does not exceed the product of the number of columns of holes by the distance between the columns, measured along the contour of the mask.
SU772530654A 1976-10-04 1977-10-04 Shadow mask cathode-ray tube SU1199207A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/729,349 US4072876A (en) 1976-10-04 1976-10-04 Corrugated shadow mask assembly for a cathode ray tube
US05/729,592 US4136300A (en) 1975-03-19 1976-10-04 Cathode ray tube having improved shadow mask

Publications (1)

Publication Number Publication Date
SU1199207A3 true SU1199207A3 (en) 1985-12-15

Family

ID=27111857

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772530654A SU1199207A3 (en) 1976-10-04 1977-10-04 Shadow mask cathode-ray tube

Country Status (14)

Country Link
JP (2) JPS5352054A (en)
AT (2) AT355100B (en)
AU (2) AU502211B2 (en)
BR (1) BR7706587A (en)
CA (1) CA1088987A (en)
DE (2) DE2743627A1 (en)
ES (2) ES462663A1 (en)
FR (2) FR2366687A1 (en)
GB (2) GB1584179A (en)
IT (2) IT1087553B (en)
MX (2) MX3947E (en)
NL (2) NL7710857A (en)
PL (1) PL107134B1 (en)
SU (1) SU1199207A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546889A (en) * 1975-03-19 1979-05-31 Rca Corp Cathode ray tube having shadow mask
FI71211C (en) * 1977-06-22 1986-11-24 Hitachi Ltd HAZARDOUS FOER EN SKUGGMASK I ETT FAERGKATODSTRAOLERER
US4122368A (en) * 1977-07-08 1978-10-24 Rca Corporation Cathode ray tube with a corrugated mask having a corrugated skirt
US4146816A (en) * 1977-07-08 1979-03-27 Rca Corporation Cathode-ray tube with a corrugated mask having a corrugated hinging skirt
US4942333A (en) * 1988-12-05 1990-07-17 North American Philips Corporation Shadow mask with border pattern
JPH02143758U (en) * 1988-12-31 1990-12-06

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961560A (en) * 1955-05-06 1960-11-22 Columbia Broadcasting Syst Inc Color picture tube
US3387159A (en) * 1966-10-28 1968-06-04 Nat Video Corp Color television tube mask mounting with aperture alignment maintenance during expansion
JPS4965779A (en) * 1972-10-27 1974-06-26
US3944867A (en) * 1974-03-15 1976-03-16 Zenith Radio Corporation Shadow mask having ribs bounding rectangular apertures
GB1546889A (en) * 1975-03-19 1979-05-31 Rca Corp Cathode ray tube having shadow mask

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент US № 3916243, кл. 313-403, опублик. 1976. Патент US № 3944867, кл. 313-403, опублик. 1976. *

Also Published As

Publication number Publication date
JPS5731256B2 (en) 1982-07-03
CA1088987A (en) 1980-11-04
IT1087553B (en) 1985-06-04
GB1584179A (en) 1981-02-11
JPS5352054A (en) 1978-05-12
GB1584180A (en) 1981-02-11
BR7706587A (en) 1978-08-01
FR2366687A1 (en) 1978-04-28
ATA707177A (en) 1983-08-15
AU2926177A (en) 1979-05-17
FR2366687B1 (en) 1981-08-07
FR2366686B1 (en) 1981-08-07
DE2743628A1 (en) 1978-04-06
AU2926277A (en) 1979-05-17
AU502211B2 (en) 1979-07-19
DE2743627A1 (en) 1978-04-06
IT1087552B (en) 1985-06-04
PL201281A1 (en) 1978-06-05
AT355100B (en) 1980-02-11
ATA707277A (en) 1979-07-15
AU502932B2 (en) 1979-08-16
JPS5346268A (en) 1978-04-25
ES462667A1 (en) 1978-06-16
MX3555E (en) 1981-03-02
MX3947E (en) 1981-10-08
ES462663A1 (en) 1978-12-01
PL107134B1 (en) 1980-01-31
NL7710856A (en) 1978-04-06
AT374302B (en) 1984-04-10
JPS571087B2 (en) 1982-01-09
NL7710857A (en) 1978-04-06
FR2366686A1 (en) 1978-04-28

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