DE315067C - - Google Patents

Info

Publication number
DE315067C
DE315067C DENDAT315067D DE315067DA DE315067C DE 315067 C DE315067 C DE 315067C DE NDAT315067 D DENDAT315067 D DE NDAT315067D DE 315067D A DE315067D A DE 315067DA DE 315067 C DE315067 C DE 315067C
Authority
DE
Germany
Prior art keywords
lamp
light intensity
incandescent
evacuated
lighting
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.)
Active
Application number
DENDAT315067D
Other languages
German (de)
English (en)
Publication of DE315067C publication Critical patent/DE315067C/de
Active legal-status Critical Current

Links

Classifications

    • 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
    • H01K1/325—Reflecting coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
DENDAT315067D Active DE315067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE303844T

Publications (1)

Publication Number Publication Date
DE315067C true DE315067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=6114146

Family Applications (3)

Application Number Title Priority Date Filing Date
DENDAT315067D Active DE315067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DENDAT303844D Active DE303844C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DENDAT315068D Active DE315068C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Applications After (2)

Application Number Title Priority Date Filing Date
DENDAT303844D Active DE303844C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DENDAT315068D Active DE315068C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (3) DE315068C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441823A (en) * 1943-02-01 1948-05-18 Westinghouse Electric Corp Reflector lamp and optical system
US2441824A (en) * 1943-10-16 1948-05-18 Westinghouse Electric Corp Reflector lamp
US4379249A (en) * 1980-08-20 1983-04-05 Duro-Test, Corporation Incandescent lamp with ellipsoidal envelope and infrared reflector

Also Published As

Publication number Publication date
DE315068C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE303844C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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