File:Light energy, its physics, physiological action and therapeutic applications (1904) (14571416049).jpg

Identifier: lightenergyitsph00clea (find matches)
Title: Light energy, its physics, physiological action and therapeutic applications
Year: 1904 (1900s)
Authors: Cleaves, Margaret Abigail, 1848-1917
Subjects: Medicine, Physical Phototherapy Light Radioactivity
Publisher: New York, Rebman company (etc., etc.)
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

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,which can also be utilized for the admission of fresh air, ifdesired. It is lined with zinc throughout in order to pre-vent any danger of fire from a fragment of burning car-bon. This zinc lining is painted white, and finished withwhite enamel in order to afford the best possible reflectingsurface for the light. The lamps, two in number, are sus-pended one at each end of the cabinet, with a shield of glassdirectly underneath to prevent particles of carbon fallingupon the patient. The light of the arc is projected towardthe patients body by means of reflectors placed back of eacharc. These reflectors or mirrors are of glass, silvered atthe back and concave. By their use the operator is enabledto direct the beam of light at will upon the part of the bodywhere it is desired to secure the action of the greatest in*tensity of the light energy. The cabinet contains an ordinary wire-mattress cot, whichis made up as a bed with fresh linen for each patient, andupon which the patient reclines.
Text Appearing After Image:
Fig. 10.—Electric Arc Cabinet. ELECTRIC ARC HAT I IS. 335 In the authors office the current is taken from the Edi-son incandescent mains at no volts pressure, and each lamptakes about 10 amperes at 50 volts, the remainder beingconsumed in the rheostat. At the New York Electro-Therapeutic Clinic the lampswere on the Thomson-Houston alternating-current mains of104 volts, and each lamp took 9 amperes at 48 volts, theremaining 8 volts being consumed in the rheostat. Both equipments have given satisfaction, but the con-tinuous-current arc lamps have been somewhat less difficultof adjustment, and, therefore, have required less care.1 As the patient lies at rest in the bath he is bathed in aflood of light emanating from sources of 4,000 total normalcandle-power (the arcs of 2,000 candle-power each). Whilethe patients entire nude body should be exposed to theaction of the light energy, exposures are sometimes madewith only a partial undressing. The eyes are protectedfrom the intense light b

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