Röntgen rays and electro-therapeutics - with chapters on radium and phototherapy (1910) (14757824712)

Identifier: rntgenrayselectr00kass (find matches)
Title: Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy
Year: 1910 (1910s)
Authors: Kassabian, Mihran Krikor, 1870-1910
Subjects: Electrotherapeutics X-rays Phototherapy Radiology Radiotherapy
Publisher: Philadelphia & London : J.B. Lippincott Company
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School



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Fig. 110.—Principles of Brewsters refractingstereoscope. Fig. 111.—Principles of Wheatstones reflectingstereoscope. there may be observed a sharp image on the fluorescent screen betweenthe left tube and the perforated disk 5 this is suddenly followed by anobscuration of the vision of the left eye. In this instance the tube issuddenly thrown into illumination and the image of the part is thrownupon the screen. Dr. Davidson ^ constructed such an apparatus. B. Steeeo-Fluoeoscopy. Briefly, this stereoscopic fluoroscope consists of a fluorescent screenilluminated by two tubes which spark alternately. A rotating disk withappropriately placed slots eclipses each eye alternately and works syn-chronously with the sparking of the tubes. Each eye sees the shadow ^Dr. Mackenzie Davidson described the mechanism of his invention, togetherwith the application of its principles, before the Rontgen Ray Society of London, onDecemb* 6, 1900. 234 ELECTEO-THERAPEUTICS. cast from one tube. A stereoscop