3 ms·
> And 100W is HUGE for a laser. And 5W is huge for a laser. (Class 3R is up to .005W and Class 3B is up to .5W.) It's kind of irrelevant, but I think it's wor
by DuskStar 8y ago
> And 100W is HUGE for a laser. And 5W is huge for a laser. (Class 3R is up to .005W and Class 3B is up to .5W.)
It's kind of irrelevant, but I think it's worth pointing out that while those are legal/safety/sanity limits [0], there's a lot of companies that completely ignore them. Here's one that has quite a few 5W lasers [1], and some that are supposedly up to 50W which would be insane if true. As for 100W being huge... the US Navy is testing ones in the tens of kW [2]. Might eventually make for one hell of a point defence system.
That being said, photon drives still SUCK. Not having to carry the drive helps, but it's still in the Newton-per-100MW-power range.
0: http://www.funraniumlabs.com/2017/08/laser-products-hate/ http://www.funraniumlabs.com/2017/08/laser-products-hate/
1: https://www.laserpointerpro.com/attribute/power_5000mw-laser_81 https://www.laserpointerpro.com/attribute/power_5000mw-laser...
2: https://en.wikipedia.org/wiki/AN/SEQ-3_Laser_Weapon_System https://en.wikipedia.org/wiki/AN/SEQ-3_Laser_Weapon_System
- gus_massa 8y agoA few years ago, I had for a year a green laser of 5W pointing in my direction over an optical table. It was redirected and used before it reach me, and there were a few security measures like a "wall" to stop the beam. Anyway, I was always slightly nervous ...