GB1421983A - Light exposure apparatus for formation of striped phosphor screens of colour picture tubes - Google Patents

Light exposure apparatus for formation of striped phosphor screens of colour picture tubes

Info

Publication number
GB1421983A
GB1421983A GB586473A GB586473A GB1421983A GB 1421983 A GB1421983 A GB 1421983A GB 586473 A GB586473 A GB 586473A GB 586473 A GB586473 A GB 586473A GB 1421983 A GB1421983 A GB 1421983A
Authority
GB
United Kingdom
Prior art keywords
colour
formation
exposure apparatus
collimator
light exposure
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
GB586473A
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1421983A publication Critical patent/GB1421983A/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
    • H01J9/2274—Light sources particularly adapted therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

1421983 Luminescent screens HITACHI Ltd 6 Feb 1973 [7 Feb 1972] 5864/73 Heading H1D Light exposure apparatus for formation of a striped colour c.r.t. phosphor screen comprises a slot mask, a light source assembly for projecting exposure light through a correction lens and the slot-mask apertures, the assembly including a collimator means with a leading portion 18 arranged to act as a linear light source parallel to the bridged aperture slits (Fig. 2, not shown). Two or more slender leading portions (18a, 18b) may be provided (Fig. 7a, not shown), which may be aligned point sources (Figs. 8a, 8b, not shown). Fig. 1 (not shown) includes a h.v. Hg arc lamp, reflector (7), and collimator 8. The phosphor material may be applied for each colour by the slurry method for example. Dimensions are given for the colour selecting electrode and collimator.
GB586473A 1972-02-07 1973-02-06 Light exposure apparatus for formation of striped phosphor screens of colour picture tubes Expired GB1421983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47012875A JPS4883775A (en) 1972-02-07 1972-02-07

Publications (1)

Publication Number Publication Date
GB1421983A true GB1421983A (en) 1976-01-21

Family

ID=11817584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB586473A Expired GB1421983A (en) 1972-02-07 1973-02-06 Light exposure apparatus for formation of striped phosphor screens of colour picture tubes

Country Status (7)

Country Link
US (1) US3840881A (en)
JP (1) JPS4883775A (en)
CA (1) CA981089A (en)
DE (1) DE2305747A1 (en)
FR (1) FR2171189B1 (en)
GB (1) GB1421983A (en)
IT (1) IT977700B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017964A (en) * 1973-06-18 1975-02-25
JPS5727574B2 (en) * 1974-03-13 1982-06-11
JPS5631017Y2 (en) * 1978-01-10 1981-07-23
JPH064850B2 (en) * 1989-04-21 1994-01-19 キング、インダストリーズ、インコーポレーテッド Thermo-oxidatively stable composition
US20040245225A1 (en) * 2003-06-04 2004-12-09 Alexander Kastalsky Making color in two - and three - dimensional images created in glass with laser induced micro-explosions

Also Published As

Publication number Publication date
CA981089A (en) 1976-01-06
DE2305747A1 (en) 1973-08-16
US3840881A (en) 1974-10-08
JPS4883775A (en) 1973-11-08
FR2171189A1 (en) 1973-09-21
IT977700B (en) 1974-09-20
FR2171189B1 (en) 1975-04-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee