EP0470496A3 - Incandescent lamp and reflector type projection lamp - Google Patents

Incandescent lamp and reflector type projection lamp Download PDF

Info

Publication number
EP0470496A3
EP0470496A3 EP19910112878 EP91112878A EP0470496A3 EP 0470496 A3 EP0470496 A3 EP 0470496A3 EP 19910112878 EP19910112878 EP 19910112878 EP 91112878 A EP91112878 A EP 91112878A EP 0470496 A3 EP0470496 A3 EP 0470496A3
Authority
EP
European Patent Office
Prior art keywords
lamp
type projection
reflector type
incandescent
incandescent lamp
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.)
Withdrawn
Application number
EP19910112878
Other languages
English (en)
Other versions
EP0470496A2 (de
Inventor
Yoji Yuge
Sumiko Tanaka
Akira Kawakatsu
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 Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology 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 JP2209464A external-priority patent/JPH0492358A/ja
Application filed by Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Publication of EP0470496A2 publication Critical patent/EP0470496A2/de
Publication of EP0470496A3 publication Critical patent/EP0470496A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • 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
EP19910112878 1990-08-07 1991-07-31 Incandescent lamp and reflector type projection lamp Withdrawn EP0470496A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP209464/90 1990-08-07
JP20946590 1990-08-07
JP209465/90 1990-08-07
JP2209464A JPH0492358A (ja) 1990-08-07 1990-08-07 反射鏡付電球

Publications (2)

Publication Number Publication Date
EP0470496A2 EP0470496A2 (de) 1992-02-12
EP0470496A3 true EP0470496A3 (en) 1992-08-26

Family

ID=26517469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910112878 Withdrawn EP0470496A3 (en) 1990-08-07 1991-07-31 Incandescent lamp and reflector type projection lamp

Country Status (2)

Country Link
EP (1) EP0470496A3 (de)
KR (1) KR950014331B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401270A1 (de) * 1994-01-18 1995-07-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Reflektorlampe
US5621267A (en) * 1995-03-22 1997-04-15 Ilc Technology, Inc. High-power metal halide reflector lamp
US5923471A (en) * 1996-11-26 1999-07-13 Deposition Sciences, Inc. Optical interference coating capable of withstanding severe temperature environments
DE19701792A1 (de) * 1997-01-20 1998-07-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe mit Reflexionsschicht
DE19701794A1 (de) * 1997-01-20 1998-07-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe mit Reflexionsschicht
JPH11154494A (ja) * 1997-11-21 1999-06-08 Matsushita Electron Corp 反射鏡付き管球
DE19844519C2 (de) * 1998-09-28 2000-08-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe mit IR-Reflexionsschicht
CN100543906C (zh) * 2003-02-25 2009-09-23 松下电器产业株式会社 卤素灯

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR648112A (fr) * 1928-02-03 1928-12-05 Perfectionnement apporté aux ampoules en verre de lampes électriques à incandescence destinées à servir de source lumineuse extra focale dans des réflecteurs
FR1125844A (fr) * 1954-06-15 1956-11-08 Thomson Houston Comp Francaise Lampe à incandescence perfectionnée
US3488543A (en) * 1967-02-01 1970-01-06 Philips Corp Projection lamp with elliptical mirror and light source mounting structure
US4707632A (en) * 1983-01-19 1987-11-17 Duro-Test Corporation Energy-efficient lamp
DE3810917A1 (de) * 1987-03-30 1988-10-20 Toshiba Electric Equip Reflektor
EP0339130A2 (de) * 1988-04-29 1989-11-02 Heraeus Med GmbH Beleuchtungsanordnung mit Halogenglühlampe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR648112A (fr) * 1928-02-03 1928-12-05 Perfectionnement apporté aux ampoules en verre de lampes électriques à incandescence destinées à servir de source lumineuse extra focale dans des réflecteurs
FR1125844A (fr) * 1954-06-15 1956-11-08 Thomson Houston Comp Francaise Lampe à incandescence perfectionnée
US3488543A (en) * 1967-02-01 1970-01-06 Philips Corp Projection lamp with elliptical mirror and light source mounting structure
US4707632A (en) * 1983-01-19 1987-11-17 Duro-Test Corporation Energy-efficient lamp
DE3810917A1 (de) * 1987-03-30 1988-10-20 Toshiba Electric Equip Reflektor
EP0339130A2 (de) * 1988-04-29 1989-11-02 Heraeus Med GmbH Beleuchtungsanordnung mit Halogenglühlampe

Also Published As

Publication number Publication date
KR920005238A (ko) 1992-03-28
EP0470496A2 (de) 1992-02-12
KR950014331B1 (ko) 1995-11-24

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