DE3472497D1 - Method for the manufacturing of an electric incandescent lamp - Google Patents

Method for the manufacturing of an electric incandescent lamp

Info

Publication number
DE3472497D1
DE3472497D1 DE8484113117T DE3472497T DE3472497D1 DE 3472497 D1 DE3472497 D1 DE 3472497D1 DE 8484113117 T DE8484113117 T DE 8484113117T DE 3472497 T DE3472497 T DE 3472497T DE 3472497 D1 DE3472497 D1 DE 3472497D1
Authority
DE
Germany
Prior art keywords
bulb
coating
bowl
lamp
visible radiation
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
DE8484113117T
Other languages
German (de)
Inventor
Kurt Schonsee
Joachim Oehmke
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to DE8484113117T priority Critical patent/DE3472497D1/en
Application granted granted Critical
Publication of DE3472497D1 publication Critical patent/DE3472497D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

1. Process for manufacturing an electrical incandescent lamp with a mushroom-shaped lamp bulb made of glass which, on its internal surface between the neck of the bulb and the maximum bulb diameter, is provided with an SiO2 layer which reflective to visible radiation and which reflects the radiation in an intensified manner to the bulb bowl, and the bulb bowl of which has an internal surface which diffuses visible radiation, a coating nozzle with a deflector shield attached to it being placed inside the lamp bulb to apply the SiO2 coating, and the fine SiO2 powder particles carried by a gas stream being blown into a heated lamp bowl and applied to the internal wall of the bulb in the electrostatic field, characterized in that the internal surface of the bulb bowl which diffuses visible radiation also consists of an SiO2 coating which is applied in one operating cycle with the coating which is reflective to visible radiation between the neck of the bulb and the maximum bulb diameter, the deflector shield being formed as a flat, circular disc which is positioned concentrically with the coating nozzle and at the level of the maximum bulb diameter, and the bulb bowl of the otherwise heated lamp bulb being cooled during the coating.
DE8484113117T 1983-11-08 1984-10-31 Method for the manufacturing of an electric incandescent lamp Expired DE3472497D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8484113117T DE3472497D1 (en) 1983-11-08 1984-10-31 Method for the manufacturing of an electric incandescent lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833340387 DE3340387A1 (en) 1983-11-08 1983-11-08 ELECTRIC BULB AND METHOD FOR THE PRODUCTION THEREOF
DE8484113117T DE3472497D1 (en) 1983-11-08 1984-10-31 Method for the manufacturing of an electric incandescent lamp

Publications (1)

Publication Number Publication Date
DE3472497D1 true DE3472497D1 (en) 1988-08-04

Family

ID=6213767

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19833340387 Withdrawn DE3340387A1 (en) 1983-11-08 1983-11-08 ELECTRIC BULB AND METHOD FOR THE PRODUCTION THEREOF
DE8484113117T Expired DE3472497D1 (en) 1983-11-08 1984-10-31 Method for the manufacturing of an electric incandescent lamp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19833340387 Withdrawn DE3340387A1 (en) 1983-11-08 1983-11-08 ELECTRIC BULB AND METHOD FOR THE PRODUCTION THEREOF

Country Status (3)

Country Link
EP (1) EP0141402B1 (en)
AT (1) ATE35482T1 (en)
DE (2) DE3340387A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3762562D1 (en) * 1986-03-11 1990-06-07 Philips Nv BLOWED LAMP PISTON AND ELECTRIC LAMP WITH SUCH A PISTON.
WO1991010256A1 (en) * 1989-12-22 1991-07-11 Gte Products Corporation Tungsten halogen aluminized reflector lamp and method of fabricating such lamp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999014A (en) * 1931-01-21 1935-04-23 Hygrade Sylvania Corp Manufacture of incandescent electric lamps
US2449268A (en) * 1947-05-29 1948-09-14 Sylvania Electric Prod Electric lamp
US4081709A (en) * 1975-11-20 1978-03-28 General Electric Company Electrostatic coating of silica powders on incandescent bulbs
NL7905367A (en) * 1979-07-10 1981-01-13 Philips Nv ELECTRIC LAMP WITH A MIRRORED LAMP BARREL.

Also Published As

Publication number Publication date
EP0141402A3 (en) 1986-02-12
EP0141402B1 (en) 1988-06-29
ATE35482T1 (en) 1988-07-15
DE3340387A1 (en) 1985-05-15
EP0141402A2 (en) 1985-05-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee