Laser damage of skin by 1540-nm Er-glass laser radiation: impact on laser safety standards

1996 ◽  
Author(s):  
Alexei V. Lukashev ◽  
Boris I. Denker ◽  
Pavel P. Pashinin ◽  
Sergey E. Sverchkov
Keyword(s):  
Laser Radiation ◽  
Laser Damage ◽  
Glass Laser ◽  
Laser Safety ◽  
Safety Standards

ACTUAL PROBLEMS OF LASER HYGIENE

2021 ◽  
Author(s):  
Yu.P. Paltsev ◽  
◽  
L.V. Pokhodzey
Keyword(s):  
Laser Radiation ◽  
Russian Federation ◽  
Effective Means ◽  
The European Union ◽  
Laser Safety ◽  
The Usa ◽  
Order Of Magnitude ◽  
The Russian Federation ◽  
Spectral Ranges

Annotation. The widespread introduction of laser products in various fields of science, technology and medicine, as well as the possibility of serious damage to the organ of vision and skin during their operation, put forward new and increasingly complex tasks for laser hygiene. An analysis of the hygienic normative and methodological documents currently in force on the territory of the Russian Federation showed that they cannot fully ensure laser safety. Differences in the approaches to the hygienic standardization of laser radiation (LR), adopted in the Russian Federation and the USA and the European Union, have been established. The LR hygienic standards in GOST R IEC 60825-1-2013 are practically identical to foreign IEC 60825 standards, that is, in most spectral ranges they exceed the MPL by an order of magnitude or more (SanPiN 1.2.3685-21). The necessity of correcting the hygienic standards of LR, harmonizing the classification of lasers according to the degree of hazard, and developing effective means of control and protection was revealed. Draft documents have been developed: "Hygienic standards for laser radiation" and "Sanitary and epidemiological requirements for working conditions during the operation of laser products", the introduction of which into the practice of sanitary and epidemiological supervision will ensure the preservation of the health of workers. Key words: lasers, correction of hygienic standards, classification, methods and means of control and protection, laser safety.

GLASS LASER DAMAGE RESEARCH

1967 ◽  
Author(s):  
R. D. Maurer ◽  
W. W. Lester ◽  
M. E. Vance
Keyword(s):  
Laser Damage ◽  
Glass Laser

Low-Level Laser Light Effects—Long-Term Effects

1980 ◽  
Vol 24 (1) ◽  
pp. 152-156
Author(s):  
Harry Zwick ◽  
Bruce E. Stuck ◽  
Edwin S. Beatrice
Keyword(s):  
Data Base ◽  
Visual Function ◽  
Prolonged Exposure ◽  
Laser Light ◽  
Long Term Effects ◽  
Laser Safety ◽  
Scotopic Vision ◽  
Safety Standards ◽  
Low Level ◽  
The Impact

Although present laser safety standards are based on an adequate data base for acute viewing situations, they are limited in predicting the type of change in visual function that might be induced from prolonged or repetitive viewing of laser sources. Viewing requirements in holography, laser display systems, and, in general, repeated exposure to low levels of laser radiation require a more complete data base for optimizing the environmental protection of individuals who will be required to work in such environments. In these studies, we have simulated very low-level radiation environments and determined the effects of repetitive prolonged exposure on the visual function of the Rhesus. Our data suggest that prolonged viewing of such sources, even though they are well below present laser safety standards, can produce permanent changes in visual processes that underlie normal human day (photopic) and night (scotopic) vision, although preliminary studies of morphology have shown no morphological correlate. The coherency of laser light is implicated as a significant factor in inducing these effects. It is recommended that individuals required to work in these situations be frequently evaluated for changes in visual function by presently available clinical instruments for assessment of visual function. Further confirmation of these studies will determine the impact of these research findings on present laser safety standards.

Selecting laser eye protectors – a helping hand

2015 ◽  
Vol 4 (5-6) ◽  
Author(s):  
Catherine Gappenach ◽  
Jörg Krüger ◽  
Friedrich Offenhäuser ◽  
Sabine Pintaske ◽  
Hans-Joachim Krauß
Keyword(s):  
Laser Safety ◽  
Safety Standards ◽  
Know How ◽  
Normative Status ◽  
Selection Of

AbstractThe European laser safety standards EN 207, EN 208, and EN 12254 each contain an annex B, which serves as a guidance for the selection of products. These annexes are informative only and are therefore not binding. As there are a variety of hazard scenarios, it is not recommended to change these annexes to a normative status, through which they would become mandatory. Instead, it is recommended to allow users to apply their own skills and know-how in selecting appropriate products, justifying where and why they deviate from the guidance in the standards. This paper explains the background on which the guidance for selection in the annexes of the standards is based and shows physically meaningful leeway.

scholarly journals Laser toys fail to comply with safety standards – case study based on laser product classification

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jaroslaw Mlynczak
Keyword(s):  
Public Health ◽  
Laser Safety ◽  
Safety Standards ◽  
The Public ◽  
Tests And Measurements ◽  
Radiation Sources ◽  
Product Classification

Abstract The article describes the laser safety classification of a laser toy for children equipped with a laser aimer/illuminator with two radiation sources. Following the rules presented in EN 60825-1: 2014 standard, the tests and measurements of the accessible emission were carried out and the class of the laser product was determined to be 3R. It was shown that the laser toy does not comply with the requirements of the EN 62115: 2020 standard and the Public Health England Guidance. The potential hazards associated with Class 3R, indicated in the EN 60825-1: 2014 standard, are also discussed.

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