JPS56138855A - High pressure discharge lamp - Google Patents

High pressure discharge lamp

Info

Publication number
JPS56138855A
JPS56138855A JP4154780A JP4154780A JPS56138855A JP S56138855 A JPS56138855 A JP S56138855A JP 4154780 A JP4154780 A JP 4154780A JP 4154780 A JP4154780 A JP 4154780A JP S56138855 A JPS56138855 A JP S56138855A
Authority
JP
Japan
Prior art keywords
projection
bulb
phosphor
phosphor material
optical transmission
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
JP4154780A
Other languages
Japanese (ja)
Inventor
Yasuhiro Iwato
Kozo Kawashima
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4154780A priority Critical patent/JPS56138855A/en
Publication of JPS56138855A publication Critical patent/JPS56138855A/en
Pending 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
    • H01J61/38—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)

Abstract

PURPOSE:To reduce the quantity of necessary phosphor material and its cost, by forming a projection which is protruding outward at the top of an outer bulb and applying the phosphor material whose optical transmission factor is 65-95% to the inner surface of this projection. CONSTITUTION:A bulb 1 has a metal cap 3 at its neck 2 and a projection 4 which is protruding outward at the top. A phosphor coating 6 is applied to the spindle- shaped section of the bulb 1. In this case, the phosphor coating 6 of the spindle- shaped section of the bulb is formed so as to have its optical transmission factor of about 60% and the phosphor coating 7 of the projection 4 permits its optical transmission factor to be restricted within the ranges of 65-95%. This restriction can reduce the quantity of the necessary phosphor material and improve the color of the lamp more than the lamp to which no phosphor material is applied.
JP4154780A 1980-03-31 1980-03-31 High pressure discharge lamp Pending JPS56138855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4154780A JPS56138855A (en) 1980-03-31 1980-03-31 High pressure discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4154780A JPS56138855A (en) 1980-03-31 1980-03-31 High pressure discharge lamp

Publications (1)

Publication Number Publication Date
JPS56138855A true JPS56138855A (en) 1981-10-29

Family

ID=12611443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4154780A Pending JPS56138855A (en) 1980-03-31 1980-03-31 High pressure discharge lamp

Country Status (1)

Country Link
JP (1) JPS56138855A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002352769A (en) * 2001-05-23 2002-12-06 Toshiba Lighting & Technology Corp High-pressure discharge lamp and lighting device
US9209437B2 (en) 2008-07-03 2015-12-08 Samsung Sdi Co., Ltd. Secondary battery having electrolyte injection hole and method of fabricating the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833940A (en) * 1971-08-31 1973-05-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833940A (en) * 1971-08-31 1973-05-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002352769A (en) * 2001-05-23 2002-12-06 Toshiba Lighting & Technology Corp High-pressure discharge lamp and lighting device
US9209437B2 (en) 2008-07-03 2015-12-08 Samsung Sdi Co., Ltd. Secondary battery having electrolyte injection hole and method of fabricating the same

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