GB1405153A - 40 watt fluorescent lamp - Google Patents

40 watt fluorescent lamp

Info

Publication number
GB1405153A
GB1405153A GB5184372A GB5184372A GB1405153A GB 1405153 A GB1405153 A GB 1405153A GB 5184372 A GB5184372 A GB 5184372A GB 5184372 A GB5184372 A GB 5184372A GB 1405153 A GB1405153 A GB 1405153A
Authority
GB
United Kingdom
Prior art keywords
nov
envelope
fluorescent lamp
fluorescent
watt fluorescent
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
GB5184372A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics 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
Priority claimed from JP1971106232U external-priority patent/JPS4861678U/ja
Priority claimed from JP10707271U external-priority patent/JPS4862873U/ja
Priority claimed from JP10707371U external-priority patent/JPS4862874U/ja
Application filed by Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Publication of GB1405153A publication Critical patent/GB1405153A/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Luminescent Compositions (AREA)

Abstract

1405153 Fluorescent discharge lamps MATSUSHITA ELECTRONICS CORP 9 Nov 1972 [12 Nov 1971 15 Nov 1971 (2)] 51843/72 Heading H1D A fluorescent Hg discharge lamp has a 1200 mm. long envelope of 20 to 25 mm. inside diameter with electrodes extending 15 to 55 mm. into the envelope and is filled with rare gases at a pressure of 1À0 to 3À5 mm. Hg whose composition falls within a region abode on a trilinear chart where points a, b, c, d, e represent The envelope is coated with Sb, Mn activated Ca halophosphate phosphor.
GB5184372A 1971-11-12 1972-11-09 40 watt fluorescent lamp Expired GB1405153A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1971106232U JPS4861678U (en) 1971-11-12 1971-11-12
JP10707271U JPS4862873U (en) 1971-11-15 1971-11-15
JP10707371U JPS4862874U (en) 1971-11-15 1971-11-15

Publications (1)

Publication Number Publication Date
GB1405153A true GB1405153A (en) 1975-09-03

Family

ID=27310680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5184372A Expired GB1405153A (en) 1971-11-12 1972-11-09 40 watt fluorescent lamp

Country Status (4)

Country Link
CA (1) CA971214A (en)
DE (1) DE2255165C3 (en)
FR (1) FR2159505B1 (en)
GB (1) GB1405153A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493042A1 (en) * 1980-10-29 1982-04-30 Philips Nv DISCHARGE LAMP IN LOW PRESSURE MERCURY VAPOR THROUGH PLATED DISCHARGE
WO2003032364A1 (en) * 2001-10-04 2003-04-17 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7612158A (en) * 1976-11-02 1978-05-05 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
DE2722694C2 (en) * 1977-05-18 1985-01-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Mercury vapor low pressure discharge lamp
DD205772A1 (en) * 1982-02-16 1984-01-04 Reinhard Butz LOW-PRESSURE GAS DISCHARGE LAMP, ESPECIALLY SMALL PERFORMANCE FLUORESCENT LAMP

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714681A (en) * 1948-08-27 1955-08-02 Gen Electric Electric discharge device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493042A1 (en) * 1980-10-29 1982-04-30 Philips Nv DISCHARGE LAMP IN LOW PRESSURE MERCURY VAPOR THROUGH PLATED DISCHARGE
WO2003032364A1 (en) * 2001-10-04 2003-04-17 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp

Also Published As

Publication number Publication date
DE2255165C3 (en) 1978-04-06
FR2159505B1 (en) 1976-08-20
FR2159505A1 (en) 1973-06-22
CA971214A (en) 1975-07-15
DE2255165B2 (en) 1977-07-21
DE2255165A1 (en) 1973-05-17

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Legal Events

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