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
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
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)
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 |
-
1965
- 1965-04-30 NL NL6505581A patent/NL6505581A/xx unknown
-
1966
- 1966-04-26 DE DE19661497528 patent/DE1497528A1/en active Pending
- 1966-04-27 GB GB1842866A patent/GB1097409A/en not_active Expired
- 1966-04-27 CH CH609966A patent/CH470081A/en unknown
- 1966-04-27 AT AT395666A patent/AT255564B/en active
- 1966-04-27 DK DK214766A patent/DK109573C/en active
- 1966-04-28 ES ES0326096A patent/ES326096A1/en not_active Expired
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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