Laser micromachining uses focused laser energy to process very small areas of materials. Applications can include precision cutting, drilling, marking, structuring and manufacturing of miniature components.

Because these systems can use highly focused beams, the potential eye hazard should be carefully assessed even when the processed area itself is extremely small.

Laser safety eyewear should be selected according to the wavelength and operating characteristics of the micromachining system. Optical density is particularly important because it determines the level of attenuation provided at the specified wavelength.

Many micromachining systems operate in the infrared or visible spectrum, while some use ultraviolet wavelengths. The appropriate eyewear therefore varies considerably between systems.

Pulsed operation also needs to be considered. A pulsed laser can produce very high peak power even when its average output is relatively low. The laser's pulse characteristics should therefore be included in the safety assessment.

Eyewear design can also affect usability. Operators may require good visibility of small components or alignment targets, making appropriate VLT and filter selection important.

Laser safety glasses should never be selected solely from the machine's application name. Two micromachining systems can use completely different wavelengths and require different protective filters.

Always compare the eyewear specifications with the actual laser source before use.