JPS6443966A - Reflection type fluorescent lamp - Google Patents

Reflection type fluorescent lamp

Info

Publication number
JPS6443966A
JPS6443966A JP19807687A JP19807687A JPS6443966A JP S6443966 A JPS6443966 A JP S6443966A JP 19807687 A JP19807687 A JP 19807687A JP 19807687 A JP19807687 A JP 19807687A JP S6443966 A JPS6443966 A JP S6443966A
Authority
JP
Japan
Prior art keywords
reflecting layer
antimony oxide
fluorescent lamp
layer
calcium pyrophosphate
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.)
Pending
Application number
JP19807687A
Other languages
Japanese (ja)
Inventor
Mitsutake Magai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19807687A priority Critical patent/JPS6443966A/en
Publication of JPS6443966A publication Critical patent/JPS6443966A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To prevent the deterioration of the brightness of a lamp and to minimize the exfoliation of the reflecting layer by adding simultaneously antimony oxide and calcium pyrophosphate to titanium oxide in the reflecting layer. CONSTITUTION:In a fluorescent lamp provided with a reflecting layer 3 and a phosphor layer 4, the reflecting layer 3 is made of a material of titanium oxide added with antimony oxide and calcium pyrophosphate. By the addition of antimony oxide the access of sodium precipitated from soda lime glass used for the fluorescent lamp to the phosphor layer can be prevented, thus its injurious effect to generate the deterioration of the brightness can be avoided. As the added amount of antimony oxide is increased the adhesive strength of the reflecting layer to the protective layer 2 is decreased, but by the addition of calcium pyrophosphate the allowable range of the amount of the added antimony oxide can be expanded to improve the workability.
JP19807687A 1987-08-10 1987-08-10 Reflection type fluorescent lamp Pending JPS6443966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19807687A JPS6443966A (en) 1987-08-10 1987-08-10 Reflection type fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19807687A JPS6443966A (en) 1987-08-10 1987-08-10 Reflection type fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS6443966A true JPS6443966A (en) 1989-02-16

Family

ID=16385116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19807687A Pending JPS6443966A (en) 1987-08-10 1987-08-10 Reflection type fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS6443966A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735566A3 (en) * 1995-03-31 1999-01-13 General Electric Company Discharge lamp
WO2005030371A1 (en) * 2003-09-23 2005-04-07 Carrier Corporation Reflective lamp to maximize light delivery to a photoactive catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735566A3 (en) * 1995-03-31 1999-01-13 General Electric Company Discharge lamp
WO2005030371A1 (en) * 2003-09-23 2005-04-07 Carrier Corporation Reflective lamp to maximize light delivery to a photoactive catalyst
US7279144B2 (en) 2003-09-23 2007-10-09 Carrier Corporation Reflective lamp to maximize light delivery to a photoactive catalyst

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