Laser safety glasses – what does ‘DIRM’ mean?

You know I keep banging on and on about safety glasses and how important they are (you only have one pair of eyes!!). I have written a number of times about this topic and how to understand the text on your safety glasses (https://mikemurphyblog.com/2024/02/29/laser-safety-glasses-and-how-to-read-them/). Yet, I find that people still don’t know much about this… Continue reading Laser safety glasses – what does ‘DIRM’ mean?