Protective area of laser eye protectors
β Scribed by E. Sutter; A. Schirmacher
- Book ID
- 104159604
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 266 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0030-3992
No coin nor oath required. For personal study only.
β¦ Synopsis
An objective deΓΏnition of the protective area of laser eye protectors is discussed. First an appropriate test method is described, which is based on the current eye protection standard EN 168. For a variety of already CE type approved laser eye protectors, i.e. for di erent goggle and spectacle types, results of corresponding measurements are shown. From these results the requirements on the vertical and horizontal angle ranges are derived, which have to be covered by laser eye protectors. This proposal will be implemented in the currently processed amendments of the laser safety standards EN 207 and EN 208.
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Di erent types of eye-protection ΓΏlters are examined with the emphasis being laid on the irradiation-dependent spectral transmittance. Most of the dyes used for polycarbonate laser ΓΏlters show the e ect of induced transmittance. This may be critical with respect to eye safety because these absorber