JPS5275876A - Reflection type electric bulb - Google Patents

Reflection type electric bulb

Info

Publication number
JPS5275876A
JPS5275876A JP15266375A JP15266375A JPS5275876A JP S5275876 A JPS5275876 A JP S5275876A JP 15266375 A JP15266375 A JP 15266375A JP 15266375 A JP15266375 A JP 15266375A JP S5275876 A JPS5275876 A JP S5275876A
Authority
JP
Japan
Prior art keywords
bulb
type electric
electric bulb
reflection type
feflection
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
JP15266375A
Other languages
Japanese (ja)
Other versions
JPS5646664B2 (en
Inventor
Masatsugu Sannoki
Shozo Miyamoto
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
Application filed by Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP15266375A priority Critical patent/JPS5275876A/en
Publication of JPS5275876A publication Critical patent/JPS5275876A/en
Publication of JPS5646664B2 publication Critical patent/JPS5646664B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To obtain a feflection type electric bulb, which ensures excellent light diffusibility, is free from projection of filament shadow, provides high center light intensity, permits various beam angles to be readily obtaind with the same kind of bulb by merely varying the extent of coating silica, and has sufficiently high mechanical strength of bulb.
JP15266375A 1975-12-19 1975-12-19 Reflection type electric bulb Granted JPS5275876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15266375A JPS5275876A (en) 1975-12-19 1975-12-19 Reflection type electric bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15266375A JPS5275876A (en) 1975-12-19 1975-12-19 Reflection type electric bulb

Publications (2)

Publication Number Publication Date
JPS5275876A true JPS5275876A (en) 1977-06-25
JPS5646664B2 JPS5646664B2 (en) 1981-11-05

Family

ID=15545353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15266375A Granted JPS5275876A (en) 1975-12-19 1975-12-19 Reflection type electric bulb

Country Status (1)

Country Link
JP (1) JPS5275876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358273A1 (en) * 1988-09-06 1990-03-14 Koninklijke Philips Electronics N.V. Reflector lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358273A1 (en) * 1988-09-06 1990-03-14 Koninklijke Philips Electronics N.V. Reflector lamp

Also Published As

Publication number Publication date
JPS5646664B2 (en) 1981-11-05

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