Hello guys,

I'm aware of the dangers of lasers over 5mw, which can damage the eye quicker than you're blink reflexes when pointed directly at it. However, i was wondering if I used a 150mw green laser in a dark, closed room, is the ambient light coming from the laser harmful as well?

ie. Pointing it at wall in dark room cause the entire room to appear greenish. Does this ambient light harm your eyesight? (I theorize the light bouncing all around the room could somewhat be harmful? I don't really know) Or maybe looking at the green beam itself (w/o goggles), though not pointed in your direction, could be harmful too?

Also, green/blue/red lasers -- which are the most dangerous and least dangerous for the eye.

Please enlighten me before I try this lol

EDIT: Oh also on a side note, are there any goggles that can protect all green/red/blue lasers ~150mw?

The danger is from reflections, or a direct hit. You can stare at the beam to your heart's content, but I think you'll find the dot far too bright and unpleasant to look at indoors.

That said though, there are shiny/reflective surfaces ALL AROUND us, a glossy computer monitor, a shiny keyboard, a mirror, a silver topped salt shaker, a plastic bottle etc,.

Some wall paints are also glossy, as opposed to matte... don't ever point at glossy/shiny surfaces.

So the best thing you can do is setup the laser so it is completely stationary, and pointed at a beam dump that way you can safely enjoy the beam indoors.

There is no perfect solution as goggles go to cover the whole spectrum unfortunately. (Perfect setup for someone to post a picture of steel or brick goggles)

Thanks for the info, that's good to hear.