GB2006516A - Manufacturing lamps - Google Patents

Manufacturing lamps

Info

Publication number
GB2006516A
GB2006516A GB7835432A GB7835432A GB2006516A GB 2006516 A GB2006516 A GB 2006516A GB 7835432 A GB7835432 A GB 7835432A GB 7835432 A GB7835432 A GB 7835432A GB 2006516 A GB2006516 A GB 2006516A
Authority
GB
United Kingdom
Prior art keywords
mercury
particle
evacuating
chemically stable
stable powder
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.)
Granted
Application number
GB7835432A
Other versions
GB2006516B (en
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB2006516A publication Critical patent/GB2006516A/en
Application granted granted Critical
Publication of GB2006516B publication Critical patent/GB2006516B/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
    • H01J9/46—Machines having sequentially arranged operating stations
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Abstract

In the manufacture of low pressure mercury lamps, e.g. fluorescent or mercury arc lamps, the desired amount of mercury is provided by a metering device, and this mercury particle is coated with a chemically stable powder, e.g. a metal oxide such as zirconium oxide or aluminium oxide, before being introduced into the lamp. The manufacture of the lamp in a turret machine includes the steps of fitting bulbs through each evacuating pipe to each evacuating head communicating to an evacuating device; weighing mercury by a mercury weighing device to take up each constant weight of mercury particle; coating the mercury particle with a chemically stable powder; and charging the coated mercury particle through an evacuating head into each bulb together with an inert gas as a seal gas. Drops of mercury metered from the Hg storage container 17 fall onto rotatable funnel-shaped body 28 whose inner slant surface 26 is covered with the chemically stable powder which is picked up by the mercury as it rolls to the feeding orifice 27. <IMAGE>
GB7835432A 1977-10-07 1978-09-04 Method of manufacturing low pressure mercury lamp Expired GB2006516B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12111277A JPS5810813B2 (en) 1977-10-07 1977-10-07 Manufacturing method of low pressure mercury discharge lamp

Publications (2)

Publication Number Publication Date
GB2006516A true GB2006516A (en) 1979-05-02
GB2006516B GB2006516B (en) 1982-07-21

Family

ID=14803169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835432A Expired GB2006516B (en) 1977-10-07 1978-09-04 Method of manufacturing low pressure mercury lamp

Country Status (2)

Country Link
JP (1) JPS5810813B2 (en)
GB (1) GB2006516B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1191571A2 (en) * 2000-09-22 2002-03-27 Matsushita Electric Industrial Co., Ltd. Mercury-containing material, method for producing the same and fluorescent lamp using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148698A (en) * 1984-01-13 1985-08-05 Kubota Ltd Belt press type dehydrator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1191571A2 (en) * 2000-09-22 2002-03-27 Matsushita Electric Industrial Co., Ltd. Mercury-containing material, method for producing the same and fluorescent lamp using the same
EP1191571A3 (en) * 2000-09-22 2005-08-03 Matsushita Electric Industrial Co., Ltd. Mercury-containing material, method for producing the same and fluorescent lamp using the same

Also Published As

Publication number Publication date
JPS5454475A (en) 1979-04-28
JPS5810813B2 (en) 1983-02-28
GB2006516B (en) 1982-07-21

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19980903