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 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE303844T

Publications (1)

Publication Number Publication Date
DE315067C true DE315067C (cs)

Family

ID=6114146

Family Applications (3)

Application Number Title Priority Date Filing Date
DENDAT303844D Active DE303844C (cs)
DENDAT315068D Active DE315068C (cs)
DENDAT315067D Active DE315067C (cs)

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DENDAT303844D Active DE303844C (cs)
DENDAT315068D Active DE315068C (cs)

Country Status (1)

Country Link
DE (3) DE315067C (cs)

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
DE303844C (cs)
DE315068C (cs)

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