Ocular Hazard of the Gallium Arsenide (GaAs) Laser PDF Download
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Author: David J. Lund
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
The Gallium Arsenide (GaAs) Semiconductor laser is finding application in many devices which subject human eyes to laser irradiation. This study evaluated a single diode laboratory device to determine an ED50 level in rhesus monkeys. The RCA 7610 GaAs laser diode used in this experiment was cooled to cryogenic temperature (77K) to allow rapid pulsing, thus increasing average power enough to create retinal burns.
Author: David J. Lund
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
The Gallium Arsenide (GaAs) Semiconductor laser is finding application in many devices which subject human eyes to laser irradiation. This study evaluated a single diode laboratory device to determine an ED50 level in rhesus monkeys. The RCA 7610 GaAs laser diode used in this experiment was cooled to cryogenic temperature (77K) to allow rapid pulsing, thus increasing average power enough to create retinal burns.
Author: James R. Gallagher
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
The hazard of GaAs diode array lasers with their searchlight-like beams must be evaluated differently than conventional lasers. This report evaluates the ocular hazards of Solid State Laser, Type AN/AAQ-7, one of the GLINT series of illuminators. It was found that an optical density of 1.39 is required for protection within a distance of 22.4 m. from the laser for a 5-second exposure. (Author).
Author: C. H. Gooch
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 356
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
The GaAs laser is used in intrusion alarm systems, secure communication links, and short distance range-finders. By use of multiple diode arrays, high average power visually covert illumination is possible for night vision and range gated systems. Each of these applications exposes human eyes to GaAs laser radiation, and thus it is necessary to determine the ocular hazard of these lasers. An experimental determination is reported of the damage threshold of ocular damage using a GaAs laser.
Author: Joseph Anthony Zuclich
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Book Description
This report describes an attempt to find ocular effects in the primate eye as a result of exposure to a MILES (Multiple Integrated Laser Engagement System) laser transmitter for a M16A1 rifle. The MILES device incorporates a pulsed gallium arsenide laser operating in the near infrared. For the exposure parameters reported, no ocular alterations could be detected with either a fundus camera or a direct opthalmoscope. (Author).
Author: United States. Energy Research and Development Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 900
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Author: Edwin S. Beatrice
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
The retinas of rhesus monkeys were subjected to irradiation by a prototype gallium arsenide (GaAs) laser training device. The laser device operated at 1600 Hz (pulse repetition frequency mode) or 132 Hz (pulse code mode) with nominal peak pulse power of 1 watt and 10 watts. Exposure durations ranged from 1.0 sec to 90 sec. The tissue reaction at the exposure site was characterized by the development of a pale gray clouding within 10 seconds of initiation of the exposure. The nature of the retinal change could not be determined by ophthalmoscopic, histologic, or flourescein leakage techniques. (Author).
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 446
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Book Description
Author: D. H. Sliney
Publisher: Springer Science & Business Media
ISBN: 1489935967
Category : Medical
Languages : en
Pages : 1042
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Book Description
Nearly a decade aga a general review article on the evaluation of optical radia tion hazards was published in Applied Optics (Sliney and Freasier, 1973). This arti cle received many favorable comments but also prompted many inquiries regarding specific optical hazard problems. From this it became evident that a monograph rather than a supplemental and expanded article was needed to fill this literature gap relating to laser and optical radiation hazards. The present work is designed to fill that gap, and is structured to permit either classroom or self-study use. Much of the material in this book was developed in eonnection with short courses on laser safety and radiometry in which we have participated, as weIl as from our previous articles. In particular, the sequenee of chapters is based upon the experiences which we have had in lecturing in courses with different schedules. One of the great difficulties in developing a text of this nature is that a broad, multidisciplinary background must be included in order that the reader can comprehend all of the subjeet matter readily. For this reason, the material presented on anatomy and physiology is orien ted toward the engineer or physical scientist, while the review material on basic optical physics is intended more for the physician or life scientist.
Author: United States. Energy Research and Development Administration. Technical Information Center
Publisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1066
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Book Description
