ES391178A1 - Controlled-exposure method for preparing luminescent screens for colour-television picture tubes - Google Patents

Controlled-exposure method for preparing luminescent screens for colour-television picture tubes

Info

Publication number
ES391178A1
ES391178A1 ES391178A ES391178A ES391178A1 ES 391178 A1 ES391178 A1 ES 391178A1 ES 391178 A ES391178 A ES 391178A ES 391178 A ES391178 A ES 391178A ES 391178 A1 ES391178 A1 ES 391178A1
Authority
ES
Spain
Prior art keywords
exposure method
coating
colour
controlled
television picture
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
ES391178A
Other languages
Spanish (es)
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 ES391178A1 publication Critical patent/ES391178A1/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
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • H01J9/2272—Devices for carrying out the processes, e.g. light houses

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • 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

A governed exposure method of preparing luminescent color television tube displays by exposing a photosensitive luminescent coating disposed on the inner surface of the tube faceplate through a mask with openings to a light source, and revealing the coating thus exposed to obtain the luminescent screen, characterized by measuring the light transmission through at least a part of said mask, producing a signal indicative of said measured transmission, and adjusting the exposure of the photosensitive luminescent coating in response to said signal to produce a desired exposure of said coating. (Machine-translation by Google Translate, not legally binding)
ES391178A 1970-05-21 1971-05-14 Controlled-exposure method for preparing luminescent screens for colour-television picture tubes Expired ES391178A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3926970A 1970-05-21 1970-05-21

Publications (1)

Publication Number Publication Date
ES391178A1 true ES391178A1 (en) 1973-07-01

Family

ID=21904570

Family Applications (1)

Application Number Title Priority Date Filing Date
ES391178A Expired ES391178A1 (en) 1970-05-21 1971-05-14 Controlled-exposure method for preparing luminescent screens for colour-television picture tubes

Country Status (6)

Country Link
CA (1) CA959692A (en)
DE (1) DE2125088A1 (en)
ES (1) ES391178A1 (en)
FR (1) FR2091717A5 (en)
GB (1) GB1322441A (en)
NL (1) NL7104588A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052725A (en) * 1976-08-02 1977-10-04 Rca Corporation Cathode-ray tube screening exposure method
US4436394A (en) * 1981-05-28 1984-03-13 Rca Corporation System and method for controlling the exposure of color picture tube phosphor screens
US4416521A (en) * 1981-05-28 1983-11-22 Rca Corporation System and method for determining the light transmission characteristics of color picture tube shadow masks
FR2582858B1 (en) * 1985-06-04 1988-11-10 Videocolor METHOD AND APPARATUS FOR ILLUMINATING THE SLAB OF A COLORED TELEVISION TUBE FOR SCREEN FORMATION

Also Published As

Publication number Publication date
FR2091717A5 (en) 1972-01-14
DE2125088A1 (en) 1971-12-02
NL7104588A (en) 1971-11-23
CA959692A (en) 1974-12-24
GB1322441A (en) 1973-07-04

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