CH205355A - Electric lamp for area lighting. - Google Patents

Electric lamp for area lighting.

Info

Publication number
CH205355A
CH205355A CH205355DA CH205355A CH 205355 A CH205355 A CH 205355A CH 205355D A CH205355D A CH 205355DA CH 205355 A CH205355 A CH 205355A
Authority
CH
Switzerland
Prior art keywords
electric lamp
area lighting
lighting
area
lamp
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
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
Publication of CH205355A publication Critical patent/CH205355A/en

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
CH205355D 1936-12-18 1937-12-18 Electric lamp for area lighting. CH205355A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL205355X 1936-12-18

Publications (1)

Publication Number Publication Date
CH205355A true CH205355A (en) 1939-06-15

Family

ID=19778522

Family Applications (1)

Application Number Title Priority Date Filing Date
CH205355D CH205355A (en) 1936-12-18 1937-12-18 Electric lamp for area lighting.

Country Status (7)

Country Link
US (1) US2144521A (en)
BE (1) BE425306A (en)
CH (1) CH205355A (en)
DE (1) DE718520C (en)
FR (1) FR830957A (en)
GB (1) GB513249A (en)
NL (1) NL51560C (en)

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
US2622222A (en) * 1951-04-27 1952-12-16 Westinghouse Electric Corp Infrared heating and cooking 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
FR830957A (en) 1938-08-16
BE425306A (en)
GB513249A (en) 1939-10-09
NL51560C (en)
US2144521A (en) 1939-01-17
DE718520C (en) 1942-03-13

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