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GB1241650A - Fluorescent lamps - Google Patents

Fluorescent lamps

Info

Publication number
GB1241650A
GB1241650A GB21929/70A GB2192970A GB1241650A GB 1241650 A GB1241650 A GB 1241650A GB 21929/70 A GB21929/70 A GB 21929/70A GB 2192970 A GB2192970 A GB 2192970A GB 1241650 A GB1241650 A GB 1241650A
Authority
GB
United Kingdom
Prior art keywords
fluorescent lamps
composition
sio
glass
pbo
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
GB21929/70A
Inventor
Hirofumi Shiraishi
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1241650A publication Critical patent/GB1241650A/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
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44—Devices characterised by the luminescent material

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Luminescent Compositions (AREA)
  • Radiation-Therapy Devices (AREA)
  • Glass Compositions (AREA)

Abstract

1,241,650. Glass composition. TOKYO SHIBAURA ELECTRIC CO. Ltd. 6 May, 1970 [8 May, 1969], No. 21929/70. Heading C1M. [Also in Divisions C4 and H1] The bulb of a fluorescent lamp (see Division H1) is made of a soft glass which does not transmit light of a wavelength less than 295 nm. and has the composition in parts by weight SiO 2 72, Al 2 O 3 + Fe 2 O 3 2, CaO 6, MgO 3, Na 2 O + K 2 O 17, or SiO 2 58, Al 2 O 3 + Fe 2 O 3 1, Na 2 O + K 2 O 13, PbO 28.
GB21929/70A 1969-05-08 1970-05-06 Fluorescent lamps Expired GB1241650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3480969 1969-05-08

Publications (1)

Publication Number Publication Date
GB1241650A true GB1241650A (en) 1971-08-04

Family

ID=12424529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21929/70A Expired GB1241650A (en) 1969-05-08 1970-05-06 Fluorescent lamps

Country Status (5)

Country Link
US (1) US3764840A (en)
DE (1) DE2022660A1 (en)
FR (1) FR2047530A5 (en)
GB (1) GB1241650A (en)
SE (1) SE354377B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209624A (en) * 1987-09-04 1989-05-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Low-pressure mercury vapour discharge lamp for uv irradiation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7514565A (en) * 1975-12-15 1977-06-17 Philips Nv HIGH POWER LAMPS.
DE2707894A1 (en) * 1977-02-24 1978-08-31 Kosmedico Vertrieb Kosmetische UV-lamp with narrow emission spectrum - esp. for the treatment of psoriasis
NL7905162A (en) * 1979-07-03 1981-01-06 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
NL184712C (en) * 1979-07-03 1989-10-02 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
US4499403A (en) * 1979-09-06 1985-02-12 General Electric Company Skin tanning fluorescent lamp construction utilizing a phosphor combination
DE3121689C2 (en) * 1981-06-01 1983-07-07 Friedrich 6000 Frankfurt Wolff Fluorescent lamp with a radiation maximum in the UVA range
US4524299A (en) * 1982-04-08 1985-06-18 North American Philips Corporation Fluorescent sunlamp having controlled ultraviolet output
EP0924746B1 (en) * 1997-12-19 2003-10-08 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362384A (en) * 1942-03-30 1944-11-07 Jules L Libby Combined illuminating and germicidal lamp and method of making the same
US2447210A (en) * 1943-05-28 1948-08-17 Edna W Roberts Erythemal phosphor
US2445692A (en) * 1945-10-11 1948-07-20 Gen Electric Ultraviolet ray generator
US2563900A (en) * 1947-06-21 1951-08-14 Westinghouse Electric Corp Phosphor and method of making
US3114067A (en) * 1959-06-26 1963-12-10 Thorn Electrical Ind Ltd Fluorescent lamp particularly suited to illumination of objects containing red
US3287586A (en) * 1963-10-01 1966-11-22 Sylvania Electric Prod Plant growth lamp
US3531677A (en) * 1966-12-14 1970-09-29 Sylvania Electric Prod Quartz glass envelope with radiation-absorbing glaze
US3581137A (en) * 1967-07-31 1971-05-25 Westinghouse Electric Corp Electric lamp having an envelope composed of photoresistant soda-lime silicate glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209624A (en) * 1987-09-04 1989-05-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Low-pressure mercury vapour discharge lamp for uv irradiation
GB2209624B (en) * 1987-09-04 1992-04-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Low-pressure mercury vapour discharge lamp for uv irradiation

Also Published As

Publication number Publication date
SE354377B (en) 1973-03-05
DE2022660A1 (en) 1970-11-19
FR2047530A5 (en) 1971-03-12
US3764840A (en) 1973-10-09

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