DK109573C - Electric incandescent lamp for projection purposes. - Google Patents

Electric incandescent lamp for projection purposes.

Info

Publication number
DK109573C
DK109573C DK214766A DK214766A DK109573C DK 109573 C DK109573 C DK 109573C DK 214766 A DK214766 A DK 214766A DK 214766 A DK214766 A DK 214766A DK 109573 C DK109573 C DK 109573C
Authority
DK
Denmark
Prior art keywords
incandescent lamp
electric incandescent
projection purposes
projection
purposes
Prior art date
Application number
DK214766A
Other languages
Danish (da)
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
Application granted granted Critical
Publication of DK109573C publication Critical patent/DK109573C/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
DK214766A 1965-04-30 1966-04-27 Electric incandescent lamp for projection purposes. DK109573C (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
DK109573C true DK109573C (en) 1968-05-13

Family

ID=19793069

Family Applications (1)

Application Number Title Priority Date Filing Date
DK214766A DK109573C (en) 1965-04-30 1966-04-27 Electric incandescent lamp for projection purposes.

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)

Families Citing this family (4)

* 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
DE19844519C2 (en) * 1998-09-28 2000-08-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb with IR reflection layer
US20060186816A1 (en) * 2003-07-28 2006-08-24 Koninklijke Philips Electronics N.V. Electric lamp
DE102004033117A1 (en) * 2004-07-08 2006-01-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb

Also Published As

Publication number Publication date
NL6505581A (en) 1966-10-31
CH470081A (en) 1969-03-15
ES326096A1 (en) 1967-04-01
GB1097409A (en) 1968-01-03
AT255564B (en) 1967-07-10
DE1497528A1 (en) 1969-10-30

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