A AAA battery doesn't store enough power to drive a laser capable of burning hair for any reasonable amount of time.
When the laser isn't interrupted by the hair it has to go some where which means that heat is produced, if it can get something hot enough to burn the hair off it would get hot enough that you won't be able to hold it yet alone put it to your face.
There's no way you would ever could get the laser beam close enough to the skin for a smooth shave without burning your skin off.
And most importantly burnt hair smells like shit....
I assume that most people know at least 1 person that did laser hair removal, they should know it's a very painful and long process and it works only on dark hairs so again using this to shave anything but a fairly dark beard would never work.
That doesn't make sense. Of course you can remove hair with light. IPL isn't anything new, and this product is apparently from someone who has worked in that field for a long time.
> it's a very painful and long process and it works only on dark hair
.. which is exactly the innovation claimed in the video: this is an IPL-like method that works on light hair by bending them against a fiber. Does it work? I have no idea. But it's certainly not against "common sense". And there are prior patents in delivering IPL by fiber.
The final product could not have such a small battery shown in the video however. The production unit would probably be closer to existing IPL products in size. They're not impractically big, much like a hair dryer.
Doesn't get around the smell, power requirement, or heat output though.
Existing treatments are supposed to kill follicles permanently.
This suggest it trims hair but doesn't leave you permanently beardless.
They can't possibly work the same way.
So I think KS did the right thing. Too many people have been using it in scammy ways, and that makes it less effective for anyone with a genuine product, talent, or idea to sell.
Having said that - the scams only work when you have a market full of people who don't know enough about basic science or simple online research to check unlikely claims. And that's been the real problem with KS, IGG, and the rest - it's just too damn easy to make money from a few hours of 3D rendering to create a shiny sketch of a product that can't possibly work, or (at best) can't possibly be developed without far more investment.
Hair removal products are usually in the 20-50W ranges depending on wavelengths, the lightsaber wannabe hand held lasers are usually in the 500-2000 mW ranges and while those can burn skin and pop balloons they aren't powerful enough to burn hair.
I just don't see them having the technology to make this work, if they had it would have military applications way before shaving ones.
Just for size comparison this is a laser used for soft tissue removal
And even it won't burn hair because it works on tissue with high water content only.
Does it produce a smell?
No. Because we're not actually burning the hair, it doesn't produce a burnt hair smell.
Which sounds interesting, if it is not burning then what? Just melting?