[go: up one dir, main page]

GB462815A - Improvements in means for producing illumination resembling daylight - Google Patents

Improvements in means for producing illumination resembling daylight

Info

Publication number
GB462815A
GB462815A GB28515/36A GB2851536A GB462815A GB 462815 A GB462815 A GB 462815A GB 28515/36 A GB28515/36 A GB 28515/36A GB 2851536 A GB2851536 A GB 2851536A GB 462815 A GB462815 A GB 462815A
Authority
GB
United Kingdom
Prior art keywords
discharge lamp
daylight
producing illumination
mercury discharge
substance
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.)
Expired
Application number
GB28515/36A
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.)
British Thomson Houston Co Ltd
General Electric Company PLC
Original Assignee
British Thomson Houston Co Ltd
General Electric Company PLC
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 British Thomson Houston Co Ltd, General Electric Company PLC filed Critical British Thomson Houston Co Ltd
Publication of GB462815A publication Critical patent/GB462815A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K2/00Non-electric light sources using luminescence; Light sources using electrochemiluminescence
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02Combinations of only two kinds of elements
    • F21V13/08Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/02Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for simulating daylight
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30Elements containing photoluminescent material distinct from or spaced from the light source

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

462,815. Daylight lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and GENERAL ELECTRIC CO., Ltd. Oct. 20, 1936, No. 28515. Convention date, Dec. 23, 1935. [Class 75 (iv)] A daylight lamp comprises a mercury discharge lamp 1 (preferably of the high pressure type), a sodium discharge lamp 2, rhodamine 5 or other substance emitting red luminescent light under the radiation from the mercury discharge lamp, and a reflector 4 or like fitting whereby the light from the three sources is effectively mixed. Uranium or other luminescent substance may also be added to the combination.
GB28515/36A 1935-12-23 1936-10-20 Improvements in means for producing illumination resembling daylight Expired GB462815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE462815X 1935-12-23

Publications (1)

Publication Number Publication Date
GB462815A true GB462815A (en) 1937-03-16

Family

ID=6540028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28515/36A Expired GB462815A (en) 1935-12-23 1936-10-20 Improvements in means for producing illumination resembling daylight

Country Status (1)

Country Link
GB (1) GB462815A (en)

Similar Documents

Publication Publication Date Title
GB462815A (en) Improvements in means for producing illumination resembling daylight
GB603326A (en) Improved phosphor coating for fluorescent electric discharge lamps
GB501901A (en) Improvements in sources of light comprising a high-pressure mercury-vapour electric discharge device
GB520114A (en) Improvements in or relating to lighting fittings
GB460963A (en) Improvements in or relating to means for illumination comprising luminescent materials
GB524800A (en) Improvements in electric discharge lamps
GB488202A (en) Improvements in electric incandescent lamps
GB516927A (en) Improvements in rear lights for cycles or the like
GB501381A (en) Improvements in electric discharge lamps
GB453983A (en) Improvements in or relating to electric incandescent lamps
GB453014A (en) Improvements in decorative artificial lighting
GB474457A (en) Improvements in or relating to electric daylight lamps
GB427111A (en) Improvements in and relating to illuminating systems comprising metal vapour electric discharge lamps combined with incandescent lamps
GB459323A (en) Improvements in or relating to electric discharge lamps
GB484839A (en) Improvements in electric discharge lamps
GB265801A (en) Improvements in electric lamps
GB387193A (en) Improvements relating to luminous electric discharge lamps
GB477758A (en) Improvements in and relating to electric incandescent lamps
GB432057A (en) Improvements in and relating to electric illuminating lamps
GB517267A (en) Improvements in or relating to lighting fittings
GB505432A (en) Improvements in or relating to the use of fluorescent materials
GB424467A (en) Improvements in or relating to electric incandescent lamps having at least one filament which is partly surrounded by a screen
GB625626A (en) Improvements in or relating to luminescent tube lighting systems
GB510593A (en) Improvements in and relating to the projection of light, more particularly by the use of alternating current arcs
GB507880A (en) Improvements in and relating to photographic flash lamps