File:Light energy, its physics, physiological action and therapeutic applications (1904) (14571391130).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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
inimized to such an extent thata prolonged application can be borne for any period of timedesired. The use of the screen, however, cuts off the ultra-violetfrequencies, thereby diminishing the intensity of the chem-ical action. Still, therapeutic results seem to warrant theconclusion that the diminution is not sufficient to interferewith results in general conditions. The writer prefers the entire radiant energy of the arc,and never interposes the screen save where there is unduesensitiveness to the sensation of heat. Even in very nerv-ous patients the action, as a rule, of an expenditure of thisradiant energy is extremely quieting and beneficial. Funnel-Shaped Adjustment of Marine Searchlight, forPurposes of Localization.—The author found, after an ex-perience of several years with a Finsen tube, operated inconnection with an 80-ampere arc, that it was too expensive HVhere an application to the entire body is desired the writerprefers the cabinet heretofore described. See Chap. IX.
Text Appearing After Image:
Fig. 22.—Marine Searchlight on High Stand. CONCENTRATED ELECTRIC ARC LIGHT ENERGY. 479 to operate and required too much time for a busy office hour,not devoted especially to skin conditions. It was, there-fore, laid aside, and as a result of a good deal of experi-mental work with various forms of electric arc light appa-ratus, the author with the assistance of the manufacturer ofmarine searchlights, succeeded in arranging the marinesearchlight which was in use for general applications in avery simple and inexpensive manner for skin localization.While the highest chemical activity of the energy of the arccannot be obtained from carbons horizontally placed, thissimple arrangement has given very great satisfaction. By changing the focus of the lamp from a short to along one, i.e., from 5^ to 6 or 6^ inches, and by the funnel-shaped lid, made of black Russia iron, or copper, preferablyblackened on its inner surface, the greatest energy of thebeam is secured at a distance just outside th

Note About Images