GB532914A - Improvements in and relating to electric therapeutic lamps - Google Patents

Improvements in and relating to electric therapeutic lamps

Info

Publication number
GB532914A
GB532914A GB26639/39A GB2663939A GB532914A GB 532914 A GB532914 A GB 532914A GB 26639/39 A GB26639/39 A GB 26639/39A GB 2663939 A GB2663939 A GB 2663939A GB 532914 A GB532914 A GB 532914A
Authority
GB
United Kingdom
Prior art keywords
focus
radiation
sept
ellipse
relating
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
GB26639/39A
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
Publication of GB532914A publication Critical patent/GB532914A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

532,914. Incandescent electric lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 26, 1939, No. 26639. Convention date, Sept. 27, 1938, [Classes 39 (ii) and 75 (iv)] A lamp for concentrating to a focus a strong beam of infra-red radiation for therapeutic purposes comprises a bulb or enclosure in two glass parts sealed together as described in Specification 515,091 the lower part being of ellipsoidal form with an internal reflecting coating 16 and the upper part mainly of spherical form with the focus F of the ellipse as its centre. The tungsten filament 13 is arranged substantially at the focus F and the radiation is brought to a focus at the external focus F<SP>1</SP> of the ellipse through the plane portion 19, divergent radiation being reflected back on to the surface 16 by the spherical reflecting surfaces 18. In a modification, a lamp bulb is mounted in an enclosure shaped as described above.
GB26639/39A 1938-09-27 1939-09-26 Improvements in and relating to electric therapeutic lamps Expired GB532914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US532914XA 1938-09-27 1938-09-27

Publications (1)

Publication Number Publication Date
GB532914A true GB532914A (en) 1941-02-03

Family

ID=21983197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26639/39A Expired GB532914A (en) 1938-09-27 1939-09-26 Improvements in and relating to electric therapeutic lamps

Country Status (1)

Country Link
GB (1) GB532914A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032842A1 (en) * 1979-09-17 1981-04-02 Technicon Instruments Corp., Tarrytown, N.Y. BULB WORKING IN THE AREA NEAR INFRARED TO INFRARED RADIATION
GB2154405A (en) * 1984-01-10 1985-09-04 Thorn Emi Domestic Appliances Heating apparatus
US4739152A (en) * 1985-09-30 1988-04-19 Downs James W Electric radiant heating device for localized heating of objects and substances
DE3809160A1 (en) * 1988-03-18 1989-09-28 Leybold Ag INFRARED RADIATION SOURCE, IN PARTICULAR FOR A MULTI-CHANNEL GAS ANALYZER
EP2498572A1 (en) * 2004-02-05 2012-09-12 Worldbest Corporation Radiator apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032842A1 (en) * 1979-09-17 1981-04-02 Technicon Instruments Corp., Tarrytown, N.Y. BULB WORKING IN THE AREA NEAR INFRARED TO INFRARED RADIATION
GB2154405A (en) * 1984-01-10 1985-09-04 Thorn Emi Domestic Appliances Heating apparatus
US4739152A (en) * 1985-09-30 1988-04-19 Downs James W Electric radiant heating device for localized heating of objects and substances
DE3809160A1 (en) * 1988-03-18 1989-09-28 Leybold Ag INFRARED RADIATION SOURCE, IN PARTICULAR FOR A MULTI-CHANNEL GAS ANALYZER
EP2498572A1 (en) * 2004-02-05 2012-09-12 Worldbest Corporation Radiator apparatus

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