GB1188015A - Improvements in or relating to Electric Discharge Lamps. - Google Patents

Improvements in or relating to Electric Discharge Lamps.

Info

Publication number
GB1188015A
GB1188015A GB4659067A GB4659067A GB1188015A GB 1188015 A GB1188015 A GB 1188015A GB 4659067 A GB4659067 A GB 4659067A GB 4659067 A GB4659067 A GB 4659067A GB 1188015 A GB1188015 A GB 1188015A
Authority
GB
United Kingdom
Prior art keywords
envelope
air
electric discharge
filled
tube
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
GB4659067A
Inventor
Ronald Albert Evans
Bruce Armstrong Nichols
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB4659067A priority Critical patent/GB1188015A/en
Publication of GB1188015A publication Critical patent/GB1188015A/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
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1,188,015. Coated lamp bulbs. GENERAL ELECTRIC AND ENGLISH ELECTRIC COMPANIES, Ltd. 23 Sept., 1968 [12 Oct., 1967], No. 46590/67. Heading B2K. [Also in Division H1] An electric discharge lamp comprises a fused silica envelope having transparent protective coating on the envelope interior consisting of the dioxide of Ti, Zr or Hf-envelope. The coatings may be formed by heating the envelope to 1000 to 1250‹C while exposed to vapours of titanium, zirconium or hafnium esters of the lower aliphatic alcohols which latter are thermally decomposed. Prior to the introduction of the organic compound vapor, the tube may be evacuated, or filled with air or an inert gas. If the tube is not filled with air, subsequent heating of the coated surface to 800‹C in air is necessary to remove deposited carbon.
GB4659067A 1967-10-12 1967-10-12 Improvements in or relating to Electric Discharge Lamps. Expired GB1188015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4659067A GB1188015A (en) 1967-10-12 1967-10-12 Improvements in or relating to Electric Discharge Lamps.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4659067A GB1188015A (en) 1967-10-12 1967-10-12 Improvements in or relating to Electric Discharge Lamps.

Publications (1)

Publication Number Publication Date
GB1188015A true GB1188015A (en) 1970-04-15

Family

ID=10441854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4659067A Expired GB1188015A (en) 1967-10-12 1967-10-12 Improvements in or relating to Electric Discharge Lamps.

Country Status (1)

Country Link
GB (1) GB1188015A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988628A (en) * 1974-06-13 1976-10-26 General Electric Company Metal halide lamp with titania-silicate barrier zone in fused silica envelope
US4459510A (en) * 1979-12-28 1984-07-10 U.S. Philips Corporation Lamp having a glass lamp vessel and Glass (Na-Ca-Ba-SiO2 with B2 O3 /Al2 O3 /ZrO2) suitable therefor
GB2191888A (en) * 1986-06-05 1987-12-23 Ushio Electric Inc Fused silica envelope for discharge lamp
US4731560A (en) 1970-08-06 1988-03-15 Owens-Illinois Television Products, Inc. Multiple gaseous discharge display/memory panel having improved operating life
US4794308A (en) * 1970-08-06 1988-12-27 Owens-Illinois Television Products Inc. Multiple gaseous discharge display/memory panel having improved operating life
US4985275A (en) * 1986-06-05 1991-01-15 Ushio Denki Kabushiki Kaisha Method for producing a fused silica envelope for discharge lamp
EP0442704A2 (en) * 1990-02-16 1991-08-21 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and method of making the same
EP0602927A1 (en) * 1992-12-18 1994-06-22 General Electric Company Coated arc tube for sodium vapor lamp

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731560A (en) 1970-08-06 1988-03-15 Owens-Illinois Television Products, Inc. Multiple gaseous discharge display/memory panel having improved operating life
US4794308A (en) * 1970-08-06 1988-12-27 Owens-Illinois Television Products Inc. Multiple gaseous discharge display/memory panel having improved operating life
US3988628A (en) * 1974-06-13 1976-10-26 General Electric Company Metal halide lamp with titania-silicate barrier zone in fused silica envelope
US4459510A (en) * 1979-12-28 1984-07-10 U.S. Philips Corporation Lamp having a glass lamp vessel and Glass (Na-Ca-Ba-SiO2 with B2 O3 /Al2 O3 /ZrO2) suitable therefor
GB2191888A (en) * 1986-06-05 1987-12-23 Ushio Electric Inc Fused silica envelope for discharge lamp
US4985275A (en) * 1986-06-05 1991-01-15 Ushio Denki Kabushiki Kaisha Method for producing a fused silica envelope for discharge lamp
EP0442704A2 (en) * 1990-02-16 1991-08-21 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and method of making the same
EP0442704A3 (en) * 1990-02-16 1992-04-08 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and method of making the same
EP0602927A1 (en) * 1992-12-18 1994-06-22 General Electric Company Coated arc tube for sodium vapor lamp

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees