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Laser Safety - Eyewear Selection Chart
Selecting Laser Eye Protection for Intrabeam Viewing for Wavelengths Between 400 and 1400 nm
| Q-Switched (1 ns to 0.1 ms) | Non-Q-Switched (0.4 ms to 10 ms) | Continuous Wave Momentary (0.25 s to 10 s) | Continuous Wave Long-term Staring (greater than 3 hrs) | Attenuation | |||||
| Max. Output Energy (J) | Max. Beam Radiant Exposure (J cm-2) | Max. Laser Output Energy (J) | Max. Beam Radiant Exposure(J cm-2) | Max. Power Output (W) | Max. Beam Irradiance (W cm-2) | Max. Power Output (W) | Max. Beam Irradiance (W cm-2) | Attenuation Factor | Optical Density (O.D.) |
| 10 | 20 | 100 | 200 | . | . | . | . | 100,000,000 | 8 |
| 1.0 | 2 | 10 | 20 | . | . | . | . | 10,000,000 | 7 |
| 10E-1 | 2 x 10E-1 | 1 | 2 | . | . | 1 | 2 | 1,000,000 | 6 |
| 10E-2 | 2 x 10E-2 | 10E-1 | 2 x 10E-1 | . | . | 10E-1 | 2 x 10E-1 | 100,000 | 5 |
| 10E-3 | 2 x 10E-3 | 10E-2 | 2 x 10E-2 | 10 | 20 | 10E-2 | 2 x 10E-2 | 10,000 | 4 |
| 10E-4 | 2 x 10E-4 | 10E-3 | 2 x 10E-3 | 1 | 2 | 10E-3 | 2 x 10E-3 | 1,000 | 3 |
| 10E-5 | 2 x 10E-5 | 10E-4 | 2 x 10E-4 | 10E-1 | 2 x 10E-1 | 10E-4 | 2 x 10E-4 | 100 | 2 |
| 10E-6 | 2 x 10E-6 | 10E-5 | 2 x 10E-5 | 10E-2 | 2 x 10E-2 | 10E-5 | 2 x 10E-5 | 10 | 1 |