GB1410297A - High-pressure discharge lamp - Google Patents

High-pressure discharge lamp

Info

Publication number
GB1410297A
GB1410297A GB1566874A GB1566874A GB1410297A GB 1410297 A GB1410297 A GB 1410297A GB 1566874 A GB1566874 A GB 1566874A GB 1566874 A GB1566874 A GB 1566874A GB 1410297 A GB1410297 A GB 1410297A
Authority
GB
United Kingdom
Prior art keywords
oxide
closure
ceramic
discharge lamp
april
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
GB1566874A
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 GB1410297A publication Critical patent/GB1410297A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/361—Seals between parts of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

Abstract

1410297 Sealing glass compositions PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 April 1974 [12 April 1973] 15668/74 Heading C1M [Also in Division B3] In a high-pressure discharge lamp having a discharge tube, the space between diverging surfaces 6, 7 on the mainly ceramic tube 10 and its closure 5 is largely filled with at least one oxide having a vitreous phase. The ceramic may be sintered polycrystalline aluminium oxide or beryllium oxide, or monocrystalline material such as sapphire. The sealing parts may comprise calcium oxide 47À2 mole % aluminium oxide 37.2 " magnesium oxide 9À6 " barium oxide 4À2 " boron oxide 1À8 " A glass seal may also be used between the niobium conductor 11 and the ceramic closure 5. Figs. 3-5 (not shown) are of alternative forms of the closure seal. The angle between the diverging surfaces may be constant or variable, and only the closure may be bevelled.
GB1566874A 1973-04-12 1974-04-09 High-pressure discharge lamp Expired GB1410297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7305108A NL174199C (en) 1973-04-12 1973-04-12 HIGH PRESSURE DISCHARGE LAMP.

Publications (1)

Publication Number Publication Date
GB1410297A true GB1410297A (en) 1975-10-15

Family

ID=19818625

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1566874A Expired GB1410297A (en) 1973-04-12 1974-04-09 High-pressure discharge lamp

Country Status (5)

Country Link
JP (2) JPS5012883A (en)
BE (1) BE813557A (en)
CA (1) CA1009291A (en)
GB (1) GB1410297A (en)
NL (1) NL174199C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528625A1 (en) * 1982-06-14 1983-12-16 Tokyo Shibaura Electric Co High-pressure metal vapour discharge lamp mfg. process - allowing reliable end-cap seals to be formed even on high-power capacity lamp tubes
EP0204303A2 (en) * 1985-06-03 1986-12-10 GTE Products Corporation High temperature tapered inlead for ceramic discharge lamps
EP0272930A2 (en) * 1986-12-24 1988-06-29 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp
EP0333455A2 (en) * 1988-03-16 1989-09-20 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp, and method for producing the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040956U (en) * 1983-08-30 1985-03-22 東芝ライテック株式会社 metal vapor discharge lamp
JP2006325710A (en) * 2005-05-24 2006-12-07 Okumura Yu-Ki Co Ltd Pachinko machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE643917A (en) * 1963-02-19

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528625A1 (en) * 1982-06-14 1983-12-16 Tokyo Shibaura Electric Co High-pressure metal vapour discharge lamp mfg. process - allowing reliable end-cap seals to be formed even on high-power capacity lamp tubes
EP0204303A2 (en) * 1985-06-03 1986-12-10 GTE Products Corporation High temperature tapered inlead for ceramic discharge lamps
EP0204303A3 (en) * 1985-06-03 1988-11-02 GTE Products Corporation High temperature tapered inlead for ceramic discharge lamps
EP0272930A2 (en) * 1986-12-24 1988-06-29 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp
EP0272930A3 (en) * 1986-12-24 1990-06-20 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp
EP0333455A2 (en) * 1988-03-16 1989-09-20 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp, and method for producing the same
EP0333455A3 (en) * 1988-03-16 1991-04-17 Ngk Insulators, Ltd. Ceramic envelope device for high-pressure discharge lamp, and method for producing the same

Also Published As

Publication number Publication date
JPS5012883A (en) 1975-02-10
NL7305108A (en) 1974-10-15
JPS5727662U (en) 1982-02-13
NL174199B (en) 1983-12-01
CA1009291A (en) 1977-04-26
NL174199C (en) 1984-05-01
BE813557A (en) 1974-10-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee