CH470081A - Incandescent lamp for projection purposes with a flattened light exit window - Google Patents

Incandescent lamp for projection purposes with a flattened light exit window

Info

Publication number
CH470081A
CH470081A CH609966A CH609966A CH470081A CH 470081 A CH470081 A CH 470081A CH 609966 A CH609966 A CH 609966A CH 609966 A CH609966 A CH 609966A CH 470081 A CH470081 A CH 470081A
Authority
CH
Switzerland
Prior art keywords
light exit
incandescent lamp
exit window
projection purposes
flattened light
Prior art date
Application number
CH609966A
Other languages
German (de)
Inventor
Leonardus Verbaarschot Carolus
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH470081A publication Critical patent/CH470081A/en

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
    • H01K1/28—Envelopes; Vessels
CH609966A 1965-04-30 1966-04-27 Incandescent lamp for projection purposes with a flattened light exit window CH470081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6505581A NL6505581A (en) 1965-04-30 1965-04-30

Publications (1)

Publication Number Publication Date
CH470081A true CH470081A (en) 1969-03-15

Family

ID=19793069

Family Applications (1)

Application Number Title Priority Date Filing Date
CH609966A CH470081A (en) 1965-04-30 1966-04-27 Incandescent lamp for projection purposes with a flattened light exit window

Country Status (7)

Country Link
AT (1) AT255564B (en)
CH (1) CH470081A (en)
DE (1) DE1497528A1 (en)
DK (1) DK109573C (en)
ES (1) ES326096A1 (en)
GB (1) GB1097409A (en)
NL (1) NL6505581A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844519A1 (en) * 1998-09-28 2000-04-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb with IR reflection layer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388034A (en) * 1992-09-16 1995-02-07 General Electric Company Vehicle headlamp comprising a discharge lamp including an inner envelope and a surrounding shroud
WO2005010923A2 (en) * 2003-07-28 2005-02-03 Koninklijke Philips Electronics N.V. Electric lamp
DE102004033117A1 (en) * 2004-07-08 2006-01-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844519A1 (en) * 1998-09-28 2000-04-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb with IR reflection layer
DE19844519C2 (en) * 1998-09-28 2000-08-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb with IR reflection layer

Also Published As

Publication number Publication date
DE1497528A1 (en) 1969-10-30
AT255564B (en) 1967-07-10
NL6505581A (en) 1966-10-31
ES326096A1 (en) 1967-04-01
DK109573C (en) 1968-05-13
GB1097409A (en) 1968-01-03

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