Eye Safety, Laser

A measure of how vulnerable the human eye is to damage from a particular Laser source.

This vulnerability is affected by output power and Wavelength of laser lights.

Communication lasers are available in these wavelengths: 780nm, 850nm, 980nm, 1310nm and 1550nm. The eye is sensitive to shorter wavelengths. Wavelengths above 850nm are invisible to the eye, but can still cause damage.

Class I laser devices are the safest, while Class III are the least safe.

Eye safety requirements in the U.S. are specified by CDRH (21 CFR 1040.10 & 1040.11).

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