Those powers are all below the threshold at which eyewear is required. Below 5 mW, the aversion response (turning away or blinking) is sufficient to protect from injury. Assuming the exposure isn't intentional. However, if eyewear is still desired, the following OD and glasses would work. They are at least OD 1 at each wavelength listed and have a good visual light transmission, so they won't be too dark. They're expensive (~$200) tho, so I've listed other manufacturers below. They could call around and see if they can find anything cheaper, but Thorlabs is generally a reasonable price.
All the lasers listed are OD 0.7 or less. This pair will work for all three (assuming the wavelength for the metrologic laser is 632.8 or 650nm). The two 633 nm lasers actually have an OD of zero, so the eyewear would be more for comfort than additional protection.
Thorlabs LG8: https://www.thorlabs.com/thorproduct.cfm?partnumber=LG8
They can contact me directly with any other questions they might have.
Previous post | Top of Page | Next post