DE1276927B - Projektionslampe mit eingebautem Reflektor - Google Patents

Projektionslampe mit eingebautem Reflektor

Info

Publication number
DE1276927B
DE1276927B DES60892A DES0060892A DE1276927B DE 1276927 B DE1276927 B DE 1276927B DE S60892 A DES60892 A DE S60892A DE S0060892 A DES0060892 A DE S0060892A DE 1276927 B DE1276927 B DE 1276927B
Authority
DE
Germany
Prior art keywords
reflector
lamp
filament
bulb
projection 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.)
Pending
Application number
DES60892A
Other languages
German (de)
English (en)
Inventor
Jan Abraham Van Den Broek
Joseph Mcbride Harris
Sandford Christopher Peek Jun
Joseph Francis Scoledge
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 US701414A external-priority patent/US2979634A/en
Priority claimed from US701563A external-priority patent/US2994799A/en
Priority claimed from US707952A external-priority patent/US2980818A/en
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of DE1276927B publication Critical patent/DE1276927B/de
Pending 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
    • H01K1/26—Screens; Filters

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
DES60892A 1957-12-09 1958-12-09 Projektionslampe mit eingebautem Reflektor Pending DE1276927B (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US701414A US2979634A (en) 1957-12-09 1957-12-09 Projection lamp
US701563A US2994799A (en) 1957-12-09 1957-12-09 Projection lamp
US707952A US2980818A (en) 1958-01-09 1958-01-09 Projection lamp

Publications (1)

Publication Number Publication Date
DE1276927B true DE1276927B (de) 1968-09-05

Family

ID=27418723

Family Applications (1)

Application Number Title Priority Date Filing Date
DES60892A Pending DE1276927B (de) 1957-12-09 1958-12-09 Projektionslampe mit eingebautem Reflektor

Country Status (2)

Country Link
DE (1) DE1276927B (OSRAM)
NL (3) NL6600543A (OSRAM)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE271443C (OSRAM) *
AT9231B (de) * 1900-04-21 1902-09-25 Samuel Dexter Waschburn Glühlampe mit im Inneren der Birne angeordnetem Reflector.
DE456203C (de) * 1926-12-09 1928-02-17 Patra Patent Treuhand Innenreflektor fuer elektrische Gluehlampen
US1790086A (en) * 1925-11-06 1931-01-27 Edward W Boerstler Apparatus for projecting light rays
US1936854A (en) * 1932-04-12 1933-11-28 Rogers Radio Tubes Ltd Incandescent lamp
US1961964A (en) * 1927-12-05 1934-06-05 Adiel Y Dodge Electric lamp
AT155704B (de) * 1936-03-14 1939-03-10 Andor Von Dani Elektrische Glühlampe mit Innenreflektor.
FR895877A (fr) * 1943-06-26 1945-02-06 Lampe de projection
US2795722A (en) * 1954-12-29 1957-06-11 Gen Electric Electric incandescent lamp

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE271443C (OSRAM) *
AT9231B (de) * 1900-04-21 1902-09-25 Samuel Dexter Waschburn Glühlampe mit im Inneren der Birne angeordnetem Reflector.
US1790086A (en) * 1925-11-06 1931-01-27 Edward W Boerstler Apparatus for projecting light rays
DE456203C (de) * 1926-12-09 1928-02-17 Patra Patent Treuhand Innenreflektor fuer elektrische Gluehlampen
US1961964A (en) * 1927-12-05 1934-06-05 Adiel Y Dodge Electric lamp
US1936854A (en) * 1932-04-12 1933-11-28 Rogers Radio Tubes Ltd Incandescent lamp
AT155704B (de) * 1936-03-14 1939-03-10 Andor Von Dani Elektrische Glühlampe mit Innenreflektor.
FR895877A (fr) * 1943-06-26 1945-02-06 Lampe de projection
US2795722A (en) * 1954-12-29 1957-06-11 Gen Electric Electric incandescent lamp

Also Published As

Publication number Publication date
NL6600543A (OSRAM) 1966-04-25
NL6600542A (OSRAM) 1966-04-25
NL131903C (OSRAM)

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