GB1405155A - 20 watt fluorescent lamp - Google Patents

20 watt fluorescent lamp

Info

Publication number
GB1405155A
GB1405155A GB5184472A GB5184472A GB1405155A GB 1405155 A GB1405155 A GB 1405155A GB 5184472 A GB5184472 A GB 5184472A GB 5184472 A GB5184472 A GB 5184472A GB 1405155 A GB1405155 A GB 1405155A
Authority
GB
United Kingdom
Prior art keywords
nov
fluorescent lamp
watt fluorescent
fluorescent
lamps
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
GB5184472A
Other languages
English (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.)
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 JP1971106231U external-priority patent/JPS4861677U/ja
Priority claimed from JP10707171U external-priority patent/JPS4862872U/ja
Priority claimed from JP10707071U external-priority patent/JPS4862871U/ja
Application filed by Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Publication of GB1405155A publication Critical patent/GB1405155A/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
    • H01J61/70—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

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Discharge Lamp (AREA)
GB5184472A 1971-11-12 1972-11-09 20 watt fluorescent lamp Expired GB1405155A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1971106231U JPS4861677U (enrdf_load_stackoverflow) 1971-11-12 1971-11-12
JP10707171U JPS4862872U (enrdf_load_stackoverflow) 1971-11-15 1971-11-15
JP10707071U JPS4862871U (enrdf_load_stackoverflow) 1971-11-15 1971-11-15

Publications (1)

Publication Number Publication Date
GB1405155A true GB1405155A (en) 1975-09-03

Family

ID=27310679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5184472A Expired GB1405155A (en) 1971-11-12 1972-11-09 20 watt fluorescent lamp

Country Status (4)

Country Link
CA (1) CA969598A (enrdf_load_stackoverflow)
DE (1) DE2255164C3 (enrdf_load_stackoverflow)
FR (1) FR2159504B1 (enrdf_load_stackoverflow)
GB (1) GB1405155A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071441A1 (en) * 2001-03-06 2002-09-12 The University Of Sheffield Mercury discharge lamps
WO2003032364A1 (en) * 2001-10-04 2003-04-17 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL185639C (nl) * 1980-10-29 1990-06-01 Philips Nv Lagedrukkwikdampontladingslamp.

Family Cites Families (2)

* 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
NL246040A (enrdf_load_stackoverflow) * 1958-12-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071441A1 (en) * 2001-03-06 2002-09-12 The University Of Sheffield Mercury discharge lamps
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
FR2159504A1 (enrdf_load_stackoverflow) 1973-06-22
FR2159504B1 (enrdf_load_stackoverflow) 1976-06-04
CA969598A (en) 1975-06-17
DE2255164C3 (de) 1978-04-06
DE2255164B2 (de) 1977-07-21
DE2255164A1 (de) 1973-05-17

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years