Visual Recovery Times From High Intensity Flashes Of Light
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Visual Recovery Times From High Intensity Flashes Of Light
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Author : Robert D. Metcalf
language : en
Publisher:
Release Date : 1958
Visual Recovery Times From High Intensity Flashes Of Light written by Robert D. Metcalf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Brightness perception categories.
"A high-intensity carbon arc was used as a light source to determine the course of visual recovery after exposure to a level of illumination comparable to that likely to be encountered during nuclear operations. The subjects in the experiment were exposed to a source subtending 3°58' at the eye and with a luminance of up to 15 x 106 foot-lamberts. Exposure time was constant at 0.1 second. Recovery time plotted against illumination at the eye (and source brightness) produced a straight line curve in a semilog plot. Extrapolation to the estimated burn threshold indicates a maximum recovery time of 170 seconds to discriminate a brightness contrast comparable to reading red-lighted aircraft instruments. Recovery times to other brightness levels are also indicated."--Abstract
United States Navy Medical Newsletter
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Author :
language : en
Publisher:
Release Date : 1963
United States Navy Medical Newsletter written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Medicine, Naval categories.
Medical News Letter
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Author :
language : en
Publisher:
Release Date : 1963
Medical News Letter written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Medicine, Naval categories.
U S Government Research Reports
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Author :
language : en
Publisher:
Release Date : 1964
U S Government Research 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 1964 with Science categories.
Bibliography On Aeromedical Research With Abstracts
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Author : Aerospace Medical Laboratory (U.S.)
language : en
Publisher:
Release Date : 1960
Bibliography On Aeromedical Research With Abstracts written by Aerospace Medical Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Aviation medicine categories.
Sam Tr
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Author :
language : en
Publisher:
Release Date : 1967-07
Sam Tr written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967-07 with Space medicine categories.
A Study Of Visual Simulation Techniques For Astronautical Flight Training
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Author : T. F. Buddenhagen
language : en
Publisher:
Release Date : 1961
A Study Of Visual Simulation Techniques For Astronautical Flight Training written by T. F. Buddenhagen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Space flight training categories.
Project Report
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Author : USAF School of Aerospace Medicine
language : en
Publisher:
Release Date : 1963
Project Report written by USAF School of Aerospace Medicine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with categories.
Visual Recovery From Brief Exposures To Very High Luminance Levels
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Author : G. A. Fry
language : en
Publisher:
Release Date : 1964
Visual Recovery From Brief Exposures To Very High Luminance Levels written by G. A. Fry and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Stimulus intensity categories.
The design and calibration of the apparatus for delivering brief, high intensity flashes from a xenon-filled flash tube are described. A maximum field luminance of 4.6 x 10 to the 5th power lamberts was provided by the flash tube seen by Maxwellian view. A rotating mirror was synchronized with the flash tube discharge to produce exposure durations from 42 Mu sec to 1.4 msec. Field sizes could be varied from a point source to 10 degrees, and an adapting field optical system allowed the subject to be preadapted to various luminance levels before the flash was received. The criterion measure for recovery times following the flash was the correct identification of Sloan-Snellen test letters. Five different letter sizes were provided subtending visual angles from 41.9 to 10.2 minutes of arc. Some data are reported for five exposure durations of the flash and for five field sizes for the 20.3 minutes of arc tests letter at a luminance of 0.066 mL. (Author).
Night Visibility
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Author :
language : en
Publisher:
Release Date : 1962
Night Visibility written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Night vision categories.