Implementation of recommended ocular exposure thresholds for the evaluation of xenon flashes

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Title: Implementation of recommended ocular exposure thresholds for the evaluation of xenon flashes
Author: Fairchild, Mark; Berns, Roy
Abstract: A system was established for the evaluation of sources of optical radiation with respect to recommended ocular exposure limits. This system consists of a diode array radiometer calibrated for absolute radiometric measurements and software for the application of the currently accepted threshold limits for exposure to various wavelengths of radiation. Absolute calibration of the array radiometer was accomplished to within 3% of values obtained with a conventional instrument. Day-to-day repeatability of the instrument indicates the possibility of absolute calibration of the detector array responsivity for everyday use in the measurements of continuous sources to an accuracy of plus-or-minus 2.8%. It was also determined that the output of several optical sources used in amateur photography can exceed the retinal thermal Threshold Limit Value. One typical 35-mm photographic flash exceeded the threshold at a range of 3 m. Other threshold expressions were not exceeded at significant distances or exposure durations for these sources.
Description: The abstract of this article may also be accesssed at: http://www.imaging.org/store/epub.cfm?abstrid=2822
Record URI: http://hdl.handle.net/1850/5852
Date: 1987-02

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