Research On Ocular Effects Produced By Thermal Radiation
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Research On Ocular Effects Produced By Thermal Radiation
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Author : Thomas A. Alexander
language : en
Publisher:
Release Date : 1966
Research On Ocular Effects Produced By Thermal Radiation written by Thomas A. Alexander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
A modified Meyer-Schwickerath photo coagulator was developed to study the production of thermal lesions in rabbits and primates. Complete operating and maintenance instructions for the coagulator and an associated exposure control unit are given. The method of calibration, calibration results, and a comparison between directly measured total irradiance and spectral irradiance integrated over wavelength are reported. Minimal retinal burns were produced in pigmented rabbits by high-intensity light flashes ranging from 165 microseconds to 250 milliseconds in duration and 1.0 to 0.11 mm. in image diameter. Relationships were obtained between exposure duration and threshold irradiance for minimal lesions. Calculated retinal temperature increases were compared to observable retinal effects. In addition, luminous energy output of two Honeywell Strobonar flash units was measured and is reported. (Author).
Research For Ocular Effects Of Thermal Radiation
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Author : Thomas A. Alexander
language : en
Publisher:
Release Date : 1965
Research For Ocular Effects Of Thermal Radiation written by Thomas A. Alexander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.
To study minimal retinal burns in test rabbits, Technology Incorporated designed and fabricated a solid-state circuit to pulse a xenon light source up to 5000 amperes for one millisecond. Procedures to irradiate the rabbits and to calibrate the light source are described. Data for 1.05-millimeter-diameter minimal retinal burns were obtained. For one rabbit, this data was plotted and a theoretical equation was fitted to the curve. This data and theoretical equation can now be used for the prediction of minimal retinal burns. (Author).
The Effects Of Thermal Energy On Anterior Ocular Tissues
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Author : Jerry Hart Jacobsen
language : en
Publisher:
Release Date : 1963
The Effects Of Thermal Energy On Anterior Ocular Tissues written by Jerry Hart Jacobsen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Eye categories.
The eyes of pigmented, grey chinchilla rabbits were exposed to thermal energy to determine its effectiveness in producing pathological changes in anterior ocular tissues. The study includes variation of the following parameters: tissues, rate of delivery of energy, and spectral characteristics. Preliminary findings relative to damage to the cornea and iris are presented.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1968
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Aeronautics categories.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Technical Abstract Bulletin
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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1967
Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Science categories.
Government Wide Index To Federal Research Development Reports
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Author :
language : en
Publisher:
Release Date : 1967
Government Wide Index To Federal Research Development Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Government publications categories.
Current Catalog
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Author : National Library of Medicine (U.S.)
language : en
Publisher:
Release Date : 1968
Current Catalog written by National Library of Medicine (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Medicine categories.
Includes subject section, name section, and 1968-1970, technical reports.
National Library Of Medicine Current Catalog
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Author : National Library of Medicine (U.S.)
language : en
Publisher:
Release Date : 1970
National Library Of Medicine Current Catalog written by National Library of Medicine (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Medicine categories.
First multi-year cumulation covers six years: 1965-70.
Effects Of Thermal Energy On Retinal Function
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Author : Jerry Hart Jacobson
language : en
Publisher:
Release Date : 1962
Effects Of Thermal Energy On Retinal Function written by Jerry Hart Jacobson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with categories.
Ocular Effects Of Thermal Radiation From Atomic Detonation Flashblindness And Chorioretinal Burns
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Author :
language : en
Publisher:
Release Date : 1955
Ocular Effects Of Thermal Radiation From Atomic Detonation Flashblindness And Chorioretinal Burns written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1955 with categories.
The project was designed to determine the effect of the flash of atomic detonations at night upon the ability of military personnel to carry out their assigned tasks when such tasks involve the use of vision. It is considered that in general three types of visual tasks are involved in military operations: (a) reading of instruments in ships, aircraft, tanks, and vehicles; (b) central acute vision at low levels of illumination; and (c) peripheral vision at very low levels. After an atomic flash each individual involved in such military visual tasks would attempt to return to seeing under the light level then available to him. The time required for him to see under each of these circumstances was determined. When the eye observes an atomic fireball, the energy received in the retinal image per unit time and area depends on the relative opening of the eye (pupillary diameter divided by focal length) and the energy emitted by the fireball per unit area. Due to the concentration of energy in the image formed on the retina, skin burns and retinal burns follow different laws. As a result of this concentration retinal lesions are produced at distances many times greater than those for minimal skin burns.