Hacker News new | past | comments | ask | show | jobs | submit login

The argument is that you can't concentrate two beams to hit the same spot from the same direction.

So yes, you can have a bunch of lenses each focusing from a different direction.

And if you do a good job of aligning them, each lens will look as bright as the sun/moon from the target.

But that's your limit.




Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: