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for the sqfe use of lqsers - LIGO

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o<br />

SECTION<br />

Fie. MPE <strong>for</strong> Direct Ocular Exposure to Ultraviolei<br />

Radiation (Intrabeam Viewing and Extended<br />

Sources) <strong>for</strong> Exposure Durations from l0e to 3 x ld s<br />

Fig. 6 MPE <strong>for</strong> Direct Ocular Exposure to Ultraviolet<br />

(1" = 0.315 to 0.400 pm) and Infrarcd<br />

(1, = 1.4 pm to I mm) Radiation (lntrabeam<br />

Viewing aod Extended Sources) <strong>for</strong> Single<br />

Pulses or Continuous Exposures<br />

Fig. 7 MPE <strong>for</strong> Direct Ocular Exposure to Laser Radiation<br />

(1" = 0.4 to 0.7 pm and 1.051 to 1.4 pm) from<br />

Extended Sources (Angular Subtense >cln;n in Fig' 3)<br />

<strong>for</strong> Single Pulses or Continuous ExPosures<br />

Fig. 8 Conection Factor C,a <strong>for</strong> WaYelengths Between<br />

0.7 and l4 pm (From Tables 5 and 6)<br />

Fig. 9 Correction Factors CB and ft <strong>for</strong> Wavelengths<br />

Between 0.55 and 0.7 um . .<br />

Fig l0 Ocular MPE <strong>for</strong> lntrabeam Viewing (Angular<br />

Subtense < cr,n6 in Fig. 3) as a Function<br />

<strong>of</strong> Exposure Dumtion and Wavelength<br />

Fig. ll Ocular MPE <strong>for</strong> Extended Sources (Angular<br />

Subtense 2 cr-6, in Fig. 3) as a Function<br />

<strong>of</strong> Exposure Duration and Wavelength<br />

Fig. 12 Reduction <strong>of</strong>MPE <strong>for</strong> Repetitively Pulsed Lasers and<br />

<strong>for</strong> Multiple Exposures from Scanning Lasers ' . .<br />

Fig. 13 Measurement Arrangement Used <strong>for</strong> Purposes<br />

<strong>of</strong> Laser Classification ....<br />

Appendixes<br />

Appendix A Examples <strong>of</strong> Classification <strong>of</strong> Lasers or Laser Systems<br />

Tables<br />

Table Al Typical Laser Classilication - Continuous-Wave (CW) Lasers . . . . .<br />

Table A2 Typical Laser Classification - Single-Pulse Lasers<br />

Table ,A3 lntrabeam MPE <strong>for</strong> <strong>the</strong> Eye and Skin <strong>for</strong><br />

Selected CW Lasers<br />

Table 44 Inrabeam MPE <strong>for</strong> <strong>the</strong> Eye and Skin <strong>for</strong><br />

Selected Pulsed Lasers<br />

Appendix B Calculation <strong>for</strong> Hazard Evaluation and Classification<br />

8.1 General .<br />

8.2<br />

B.3<br />

8.4<br />

Tables<br />

Symbols<br />

Examples <strong>of</strong> MPE Determinadon and Laser Classification<br />

Formulas and Examples Useful in Evaluation<br />

<strong>of</strong> Various Laser Applications<br />

Table B I Typical Diff<strong>use</strong> Reflection Cases <strong>for</strong> Visible Radiation<br />

(l=0.4to0.?um) ...<br />

PACE<br />

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