GB1370264A - Assembly of cathode ray tube - Google Patents

Assembly of cathode ray tube

Info

Publication number
GB1370264A
GB1370264A GB235672A GB235672A GB1370264A GB 1370264 A GB1370264 A GB 1370264A GB 235672 A GB235672 A GB 235672A GB 235672 A GB235672 A GB 235672A GB 1370264 A GB1370264 A GB 1370264A
Authority
GB
United Kingdom
Prior art keywords
mask
frame
panel
positioning
elements
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
GB235672A
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of GB1370264A publication Critical patent/GB1370264A/en
Expired legal-status Critical Current

Links

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
    • H01J29/073—Mounting arrangements associated with shadow masks

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

1370264 Cathode-ray tubes RCA CORPORATION 18 Jan 1972 [18 Jan 1971] 2356/72 Heading H1D A method of assembling a shadow mask 16 on a frame 19 so that it will be corectly positioned when fitted in a faceplate panel 11 comprises the steps of positioning the frame in the panel and positioning and securing the elements 15a to 15d and 22a to 22d, which will hold them together, removing the frame, measuring the panel on a first apparatus 24 to determine the spacings of a plurality of points from a reference plane 30 by means of sensors 37a-37e, the reference plane being defined by the elements 15a to 15d and on a second apparatus 25 positioning the mask 16 at the correct position relative to a reference plane 48 defined by elements 22a to 22d such that when mask 16 is secured to frame 19 the mask and the panel will be correctly spaced. In Fig. 3 the sensors 37a to 37e are driven by motors 39 which are electrically connected with motors 39 in Fig. 4 and therefore the mask supporting members 49a to 49d move to positions corresponding to the curvature of the panel 11. If necessary, the mask 16 can be shaped to the correct curvature and held until it is welded to the frame 19.
GB235672A 1971-01-18 1972-01-18 Assembly of cathode ray tube Expired GB1370264A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10705371A 1971-01-18 1971-01-18

Publications (1)

Publication Number Publication Date
GB1370264A true GB1370264A (en) 1974-10-16

Family

ID=22314593

Family Applications (1)

Application Number Title Priority Date Filing Date
GB235672A Expired GB1370264A (en) 1971-01-18 1972-01-18 Assembly of cathode ray tube

Country Status (6)

Country Link
US (1) US3701185A (en)
JP (1) JPS5145474B1 (en)
CA (1) CA950965A (en)
FR (1) FR2122440B1 (en)
GB (1) GB1370264A (en)
IT (1) IT944102B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177627A (en) * 1985-06-27 1987-01-28 Sony Corp Method of producing colour selection mechanism for cathode ray tube

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889329A (en) * 1973-05-16 1975-06-17 Fazal A Fazlin Process for making color television masks
US3973964A (en) * 1974-12-23 1976-08-10 Zenith Radio Corporation Method for manufacturing a color cathode ray tube and for making screening and mask masters used therein
US3975198A (en) * 1974-12-23 1976-08-17 Zenith Radio Corporation Method and apparatus for manufacturing a color cathode ray tube using interchangeable shadow masks
US3989524A (en) * 1974-12-23 1976-11-02 Zenith Radio Corporation Method for manufacturing a color cathode ray tube using mask and screen masters
US4325166A (en) * 1978-05-22 1982-04-20 U.S. Philips Corporation Method of manufacturing a color television display tube
US4267624A (en) * 1979-10-22 1981-05-19 Owens-Illinois, Inc. Method of placing mask mounting pins in a CRT faceplate
KR100378075B1 (en) * 1996-08-30 2003-06-19 삼성코닝 주식회사 Method and apparatus for sealing pin of front glass for cathode ray tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334259A (en) * 1964-06-12 1967-08-01 Rca Corp Shadow mask mounting structure
US3364728A (en) * 1965-04-27 1968-01-23 Owens Illinois Glass Co Method and apparatus for supporting and gauging an article
US3482286A (en) * 1966-01-07 1969-12-09 Rca Corp Cathode ray tube manufacture
US3564195A (en) * 1968-11-05 1971-02-16 Admiral Corp Mask-to-frame welding indicator
US3537161A (en) * 1968-11-19 1970-11-03 Sylvania Electric Prod Process for achieving custom mask to panel spacing in cathode ray tubes
US3537159A (en) * 1968-11-19 1970-11-03 Sylvania Electric Prod Apparatus for achieving custom mask to panel spacing in cathode ray tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177627A (en) * 1985-06-27 1987-01-28 Sony Corp Method of producing colour selection mechanism for cathode ray tube

Also Published As

Publication number Publication date
CA950965A (en) 1974-07-09
JPS5145474B1 (en) 1976-12-03
IT944102B (en) 1973-04-20
US3701185A (en) 1972-10-31
FR2122440A1 (en) 1972-09-01
DE2201110A1 (en) 1972-07-27
FR2122440B1 (en) 1974-06-21
DE2201110B2 (en) 1975-09-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee