Hi, I'm fairly new to the forum but own a few low power lasers and got my first high power one, being the PL-E mini 400mw 532nm from Jetlasers.
I bought the goggles that Jetlasers offers when purchasing the laser, and they are labeled as 190-540nm OD4+.
The thing that made me concerned is that while I was burning something with the goggles on, and viewing the dot from about half a meter away, I could see a green light coming through the goggles, like a small green LED right at the burn point. Everything else seen through the goggles including the rest of the light coming off the dot is red.
Is this normal? Is there an easy way to test the goggles without a LPM? is OD4+ usually sufficient for a laser with this power?
I bought the goggles that Jetlasers offers when purchasing the laser, and they are labeled as 190-540nm OD4+.
The thing that made me concerned is that while I was burning something with the goggles on, and viewing the dot from about half a meter away, I could see a green light coming through the goggles, like a small green LED right at the burn point. Everything else seen through the goggles including the rest of the light coming off the dot is red.
Is this normal? Is there an easy way to test the goggles without a LPM? is OD4+ usually sufficient for a laser with this power?