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GB997899A - Improvements in or relating to apparatus for coating part of the inner surface of a bulb with a metal layer by vapour-deposition - Google Patents

Improvements in or relating to apparatus for coating part of the inner surface of a bulb with a metal layer by vapour-deposition

Info

Publication number
GB997899A
GB997899A GB37737/63A GB3773763A GB997899A GB 997899 A GB997899 A GB 997899A GB 37737/63 A GB37737/63 A GB 37737/63A GB 3773763 A GB3773763 A GB 3773763A GB 997899 A GB997899 A GB 997899A
Authority
GB
United Kingdom
Prior art keywords
bulb
skirt
rotatable
coating part
vapour
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
GB37737/63A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB997899A publication Critical patent/GB997899A/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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/04—Coating on selected surface areas, e.g. using masks
    • C23C14/046—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

<PICT:0997899/C6-C7/1> In an apparatus for coating part of the inner surface of a bulb, e.g. for a filament lamp or discharge tube, with a layer of metal 50 by vapour deposition, the part of the bulb which is not to be coated is screened by a rotatable, expansible skirt, which in a contracted rest condition can be inserted through the neck of the bulb, and which, upon rotation inside the bulb, opens out so that its periphery is close to, but does not touch, the inner surface of the bulb. As shown, a pleated or corrugated skirt 46 of polytetrafluoroethylene is secured to a head-piece 12 provided with magnets 20-22 and rotatable about a shaft 10 on support 5, under the influence of an external magnetic field produced by rotating magnets 34, 35. Initially skirt 46 falls downwardly, but insertion through the bulb neck forces it into the position shown. During rotation the skirt spreads into position 48 and afterwards droops downwardly as indicated at 54 so that it may easily be withdrawn from the bulb. The material 38 to be evaporated to form coating 50 is laid in heating filament 8.
GB37737/63A 1962-09-28 1963-09-25 Improvements in or relating to apparatus for coating part of the inner surface of a bulb with a metal layer by vapour-deposition Expired GB997899A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL283791 1962-09-28

Publications (1)

Publication Number Publication Date
GB997899A true GB997899A (en) 1965-07-14

Family

ID=19754148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37737/63A Expired GB997899A (en) 1962-09-28 1963-09-25 Improvements in or relating to apparatus for coating part of the inner surface of a bulb with a metal layer by vapour-deposition

Country Status (8)

Country Link
US (1) US3277864A (en)
BE (1) BE637909A (en)
CH (1) CH432177A (en)
DE (1) DE1287765B (en)
DK (1) DK106755C (en)
ES (1) ES292006A1 (en)
GB (1) GB997899A (en)
NL (1) NL283791A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230050A1 (en) * 1986-01-15 1987-07-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Apparatus for coating part of the inner surface of a lamp bulb

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740129A1 (en) * 1976-09-18 1978-03-23 Claude John Lancelot Hunt METAL FUMING METHOD AND DEVICE
DE2847632A1 (en) * 1977-11-19 1979-05-23 Claude John Lancelot Hunt VACUUM METALLIZING DEVICE
US4305631A (en) * 1979-12-05 1981-12-15 Radiologic Sciences, Inc. High temperature bearing bakeout process
US20070194512A1 (en) * 2004-04-01 2007-08-23 Koninklijke Philips Electronics, N.V. Holder device for manufacturing partial coatings on at least the burner of a lamp bulb
CN112011764A (en) * 2020-08-28 2020-12-01 重庆冠昌光电科技有限公司 Local vacuum coating equipment for inner wall of bulb glass bulb

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123706A (en) * 1932-07-20 1938-07-12 Hygrade Sylvania Corp Method of manufacture of reflector bulbs
US2160714A (en) * 1932-07-20 1939-05-30 Hygrade Sylvania Corp Apparatus for interiorly coating lamps, tubes, and the like
US2432950A (en) * 1943-09-24 1947-12-16 Bausch & Lomb Apparatus for making optical wedges
US2369764A (en) * 1943-09-30 1945-02-20 Bausch & Lomb Apparatus for forming optical wedges
US2657150A (en) * 1948-05-18 1953-10-27 Gen Electric Method and masking shield for interiorly coating hollow articles
US2831455A (en) * 1955-08-04 1958-04-22 Philco Corp Masking means
US2879740A (en) * 1957-05-02 1959-03-31 Gen Electric Apparatus for internally coating articles
US2946697A (en) * 1957-12-31 1960-07-26 Westinghouse Electric Corp Masking method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230050A1 (en) * 1986-01-15 1987-07-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Apparatus for coating part of the inner surface of a lamp bulb

Also Published As

Publication number Publication date
BE637909A (en)
US3277864A (en) 1966-10-11
ES292006A1 (en) 1964-03-01
CH432177A (en) 1967-03-15
NL283791A (en)
DK106755C (en) 1967-03-13
DE1287765B (en) 1969-01-23

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