I_DONT_CARE Posted March 20, 2006 Share Posted March 20, 2006 I have been looking into buying a high powered laser and I just want to know what is stronger a 20 mW 473nm Blue Laser or a 200-300 mW 532nm Green Laser (200 or 300 mW) Link to comment Share on other sites More sharing options...
BhavinB Posted March 20, 2006 Share Posted March 20, 2006 The higher the mW (milliWatts), the higher the power of the laser. So the answer is the green laser. Link to comment Share on other sites More sharing options...
Sisyphus Posted March 20, 2006 Share Posted March 20, 2006 Green is also more visible to humans than blue, so it will appear brighter at the same power output. Link to comment Share on other sites More sharing options...
I_DONT_CARE Posted March 20, 2006 Author Share Posted March 20, 2006 BhavinB yes the higher the milliWatts the more power but wavelength also makes a difference. (Example: 1 mw of red 670 nm will look weaker than of blue 473nm there for milliWatt by milliWatt blue will be stronger. By how much I dont know) if I had a 300 mw green laser and a 300 mn blue laser the blue would be stronger but I need to know by how much. It could be 1.5 times but it also could be 20 times and to what Sisyphus said I have heard that before but by how much are we more sensitive Link to comment Share on other sites More sharing options...
BhavinB Posted March 20, 2006 Share Posted March 20, 2006 Sisyphus only said it might appear stronger. But when it comes down to POWER as your question asked, the measure is mW (If the method of characterization is your eye, then you don't even need 5 mW to damage someones sight let alone 300 mW) Compare this to the age old question...what weighs more? 100kg of rocks or 100kg of feathers. Link to comment Share on other sites More sharing options...
I_DONT_CARE Posted March 20, 2006 Author Share Posted March 20, 2006 I understand now thanks (and I am going to buy the green one) Link to comment Share on other sites More sharing options...
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