JPS557548A - Front glass for flood lighting electric lamp - Google Patents

Front glass for flood lighting electric lamp

Info

Publication number
JPS557548A
JPS557548A JP7981178A JP7981178A JPS557548A JP S557548 A JPS557548 A JP S557548A JP 7981178 A JP7981178 A JP 7981178A JP 7981178 A JP7981178 A JP 7981178A JP S557548 A JPS557548 A JP S557548A
Authority
JP
Japan
Prior art keywords
glass
front glass
flood lighting
electric lamp
lighting electric
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.)
Granted
Application number
JP7981178A
Other languages
Japanese (ja)
Other versions
JPS6156174B2 (en
Inventor
Takao Omori
Shunichi Oota
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.)
AGC Techno Glass Co Ltd
Original Assignee
Toshiba Glass 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 Toshiba Glass Co Ltd filed Critical Toshiba Glass Co Ltd
Priority to JP7981178A priority Critical patent/JPS557548A/en
Publication of JPS557548A publication Critical patent/JPS557548A/en
Publication of JPS6156174B2 publication Critical patent/JPS6156174B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron

Abstract

PURPOSE: Front glass for flood lighting used for room illumination etc., containing neodymium in low expansion borosilicate glass and having sufficient heat resisting property and good color rendition property.
CONSTITUTION: Low expansion borosilicate glass composed of at least 98% by weight of the whole body, by SiO2;68W82%, Al2O3;0.5W4%, B2O3;10W18%, Na2O;2W7%, K2O;0W3%, Li2O;0W1%, Na2O+K2O+Li2O;3.5W8%, CaO:0W 1%; MgO;0W1%, BaO;0W2%. PbO;0W6%, ZnO;0W1%, Nb2O3;0.5W5%. is used for front glass of flood lighting electric lamp used for room illunination etc. Also, usually used glass is able to use for reflex surface glass (reflector) but, on this occasion, material characteristic of the front glass is necessary to coincide with the reflex surface glass so as not to remain strain after deposition.
COPYRIGHT: (C)1980,JPO&Japio
JP7981178A 1978-07-03 1978-07-03 Front glass for flood lighting electric lamp Granted JPS557548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7981178A JPS557548A (en) 1978-07-03 1978-07-03 Front glass for flood lighting electric lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7981178A JPS557548A (en) 1978-07-03 1978-07-03 Front glass for flood lighting electric lamp

Publications (2)

Publication Number Publication Date
JPS557548A true JPS557548A (en) 1980-01-19
JPS6156174B2 JPS6156174B2 (en) 1986-12-01

Family

ID=13700586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7981178A Granted JPS557548A (en) 1978-07-03 1978-07-03 Front glass for flood lighting electric lamp

Country Status (1)

Country Link
JP (1) JPS557548A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55161363A (en) * 1979-06-04 1980-12-15 Kiyokukou Denki Kk Incandescent lamp and method of manufacturing same
CN110117156A (en) * 2018-02-05 2019-08-13 绥中明晖工业技术有限公司 A kind of high borosilicate explosion-proof glass cover preparation method
US11040907B2 (en) 2017-03-31 2021-06-22 Corning Incorporated High transmission glasses

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104176934A (en) * 2014-08-07 2014-12-03 宁波杰达模具机械有限公司 Processing method for lamp glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55161363A (en) * 1979-06-04 1980-12-15 Kiyokukou Denki Kk Incandescent lamp and method of manufacturing same
US11040907B2 (en) 2017-03-31 2021-06-22 Corning Incorporated High transmission glasses
US11746038B2 (en) 2017-03-31 2023-09-05 Corning Incorporated High transmission glasses
CN110117156A (en) * 2018-02-05 2019-08-13 绥中明晖工业技术有限公司 A kind of high borosilicate explosion-proof glass cover preparation method
CN110117156B (en) * 2018-02-05 2021-07-16 绥中明晖工业技术有限公司 Preparation method of high borosilicate explosion-proof glass cover

Also Published As

Publication number Publication date
JPS6156174B2 (en) 1986-12-01

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