Hi,
I have been browsing this forum for some time but just got around to registering in order to post. Currently I have a low power red laser and a 100mw greenie on order. Not exactly sure what make but it looks exactly like many others sold by various companies (wicked, etc) - black body (pen style) with gold body colouring.
I need to buy some protective glasses for 532nm. I know the sporty style sold by wicked lasers have been recommended here and there, but I am worried about the 2.25 OD factor, especially as these are apparently good enough for the 300-400mw lasers sold?
I have seen other places such as biglasers selling glasses with OD's of 6+, which appear to actually sit around OD 7 for 532nm - these are cheaper too. Apparently going lower than 2 OD's for high powers such as 100mw is dangerous. 6 is recommended for 100mw so it seems 4 is an absolute minimum to be fully protected from close reflections. I have no means to check power at 532nm nor IR, so I need to sort that out too.
So, can anyone clarify what they believe is a good OD factor to be safe rather than sorry? I am also a little worried about stray IR leakage as it's often reported the IR filter can move or get damaged - why these filters are not locked solid in their housings seems strange.
Many thanks.
I have been browsing this forum for some time but just got around to registering in order to post. Currently I have a low power red laser and a 100mw greenie on order. Not exactly sure what make but it looks exactly like many others sold by various companies (wicked, etc) - black body (pen style) with gold body colouring.
I need to buy some protective glasses for 532nm. I know the sporty style sold by wicked lasers have been recommended here and there, but I am worried about the 2.25 OD factor, especially as these are apparently good enough for the 300-400mw lasers sold?
I have seen other places such as biglasers selling glasses with OD's of 6+, which appear to actually sit around OD 7 for 532nm - these are cheaper too. Apparently going lower than 2 OD's for high powers such as 100mw is dangerous. 6 is recommended for 100mw so it seems 4 is an absolute minimum to be fully protected from close reflections. I have no means to check power at 532nm nor IR, so I need to sort that out too.
So, can anyone clarify what they believe is a good OD factor to be safe rather than sorry? I am also a little worried about stray IR leakage as it's often reported the IR filter can move or get damaged - why these filters are not locked solid in their housings seems strange.
Many thanks.