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GB603326A - Improved phosphor coating for fluorescent electric discharge lamps - Google Patents

Improved phosphor coating for fluorescent electric discharge lamps

Info

Publication number
GB603326A
GB603326A GB2991145A GB2991145A GB603326A GB 603326 A GB603326 A GB 603326A GB 2991145 A GB2991145 A GB 2991145A GB 2991145 A GB2991145 A GB 2991145A GB 603326 A GB603326 A GB 603326A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
discharge lamps
reflector
secondary radiation
phosphor coating
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
GB2991145A
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
Original Assignee
British Thomson Houston Co Ltd
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 filed Critical British Thomson Houston Co Ltd
Priority to GB2991145A priority Critical patent/GB603326A/en
Publication of GB603326A publication Critical patent/GB603326A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

603,326. Fluorescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and SCOTT, W. J. Nov. 9, 1945, No. 29911. [Class 39 (i)] The light output of luminescent material converting primary radiation from a discharge lamp into secondary radiation of longer wavelength is improved by placing the luminescent material between the light source and a surface reflecting both primary and secondary radiation. The phosphor layer may be coated on to a diffuse reflector or one which is also translucent to the secondary radiation. A preferred reflector material is magnesium oxide. The reflector and/or luminescent layers may cover either the whole or a part of the envelope of a tubular lamp, e.g. as in Fig. 12, or may cover the arches of a multi-channel lamp as in Fig. 14.
GB2991145A 1945-11-09 1945-11-09 Improved phosphor coating for fluorescent electric discharge lamps Expired GB603326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2991145A GB603326A (en) 1945-11-09 1945-11-09 Improved phosphor coating for fluorescent electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2991145A GB603326A (en) 1945-11-09 1945-11-09 Improved phosphor coating for fluorescent electric discharge lamps

Publications (1)

Publication Number Publication Date
GB603326A true GB603326A (en) 1948-06-14

Family

ID=10299203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2991145A Expired GB603326A (en) 1945-11-09 1945-11-09 Improved phosphor coating for fluorescent electric discharge lamps

Country Status (1)

Country Link
GB (1) GB603326A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021072B (en) * 1955-08-26 1957-12-19 Philips Nv Low pressure fluorescent lamp with reflective coating
US2879449A (en) * 1956-09-04 1959-03-24 Duro Test Corp Lamp construction
US2892956A (en) * 1953-05-28 1959-06-30 Gen Electric Electric discharge lamp and manufacture thereof
US3067351A (en) * 1960-01-04 1962-12-04 Sylvania Electric Prod Aperture fluorescent lamp
US3068114A (en) * 1956-07-17 1962-12-11 Thorn Electrical Ind Ltd Electric lamps embodying reflectors
US3115309A (en) * 1959-07-09 1963-12-24 Sylvania Electric Prod Aperture fluorescent lamp
US5008789A (en) * 1989-02-22 1991-04-16 Nichia Kagaku Kogyo K.K. Fluorescent lamp having ultraviolet reflecting layer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892956A (en) * 1953-05-28 1959-06-30 Gen Electric Electric discharge lamp and manufacture thereof
DE1021072B (en) * 1955-08-26 1957-12-19 Philips Nv Low pressure fluorescent lamp with reflective coating
US3068114A (en) * 1956-07-17 1962-12-11 Thorn Electrical Ind Ltd Electric lamps embodying reflectors
US2879449A (en) * 1956-09-04 1959-03-24 Duro Test Corp Lamp construction
US3115309A (en) * 1959-07-09 1963-12-24 Sylvania Electric Prod Aperture fluorescent lamp
US3067351A (en) * 1960-01-04 1962-12-04 Sylvania Electric Prod Aperture fluorescent lamp
US5008789A (en) * 1989-02-22 1991-04-16 Nichia Kagaku Kogyo K.K. Fluorescent lamp having ultraviolet reflecting layer

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