Comments on: Laser lighter http://hackaday.com/2009/02/27/laser-lighter/ Fresh hacks every day Fri, 10 Feb 2012 13:27:05 +0000 hourly 1 http://wordpress.com/ By: Jack London http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-95015 Fri, 18 Sep 2009 22:42:40 +0000 http://hackaday.com/?p=8786#comment-95015 That’s so cool, and for only $30? I really want to make one now.

]]> By: andre http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-65476 Fri, 06 Mar 2009 19:54:42 +0000 http://hackaday.com/?p=8786#comment-65476 iirc spurious UVA and UVB emission can indeed occur from any InGaN based diode, Nichia had 370nm diodes a while back.

You can get LEDs that emit at 320nm but they are insanely expensive.

_A

]]> By: matt http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-65143 Tue, 03 Mar 2009 19:16:36 +0000 http://hackaday.com/?p=8786#comment-65143 all of the shiny surfaces make my eyes ache! The one reason why I cannot have a toy as cool as this is that retinas work as attractors for laser light.

]]> By: nitori http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64953 Tue, 03 Mar 2009 03:23:59 +0000 http://hackaday.com/?p=8786#comment-64953 Definitely should use goggles with a laser of this much power.
Judging by the noise in the video it seems the camera’s CCD or CMOS sensor has been damaged by the laser it’ll do the same thing to your eyes if you are not careful.
BTW that is a blue-violet laser 404-407nm not UVA 400 nm–320 nm.
UVB is 320 nm–280 nm and only excimer and nitrogen lasers can generate that.

]]> By: rootKRP http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64885 Mon, 02 Mar 2009 18:35:41 +0000 http://hackaday.com/?p=8786#comment-64885 i just finished my attempt at this bad boy and i can tell you mines looks no where close to how good this one looks.

]]> By: PKM http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64838 Mon, 02 Mar 2009 11:12:47 +0000 http://hackaday.com/?p=8786#comment-64838 That’s actually so cool it makes me want to take up smoking just so that I can own one of these. No lie.

]]> By: andre http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64775 Sun, 01 Mar 2009 20:04:52 +0000 http://hackaday.com/?p=8786#comment-64775 another hazard with these lasers is that they are UV-A which means even diffuse
reflections can cause “arc eye” as well as the retinal burn hazard.

just to give you an idea i built an experimental pcb etcher with a similar diode and the beam is powerful enough
that even the badly focussed 1″ diameter beam can degrade the emulsion from across a desk. i had to step down
the power for this reason (makes it slightly safer while tuning) despite using welding goggles enough light
got through them to cause problems the next day.

i have reason to believe that the cheaper (Bluray burner) diodes even emit into the UV-B range which makes them
even more dangerous! Focussing one on your skin is a BAD IDEA at any power level.

#include “$0.02.h”

]]> By: rog8811 http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64768 Sun, 01 Mar 2009 18:06:19 +0000 http://hackaday.com/?p=8786#comment-64768 You are making a big assumption there terc. I have built and used higher powered lasers than this, I am well aware of the dangers which is why I have safety glasses to wear when burning or engraving. I do not have the cigar in my mouth when I light it, Ok I burnt my thumb, which I found funny so did not edit it out of the video and it made a point.
On my website there is a page called “lasers are not toys” which explains the dangers of lasers and how to use them safely.

Regards rog8811

]]> By: Terc http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64761 Sun, 01 Mar 2009 16:40:26 +0000 http://hackaday.com/?p=8786#comment-64761 Considering he managed to burn his finger right off the bat, I’m guessing he doesn’t realize the damage he’s doing to his eyes. With lasers this strong, just looking at the dot it casts is enough to burn blind spots in your eyes. Reflections that hit his eyes would be enough to cause blindness. These lasers ARE NOT TOYS. If you’re not a laser technician, you probably shouldn’t take one of these diodes out of its case.

]]> By: Jack http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64711 Sat, 28 Feb 2009 23:56:37 +0000 http://hackaday.com/?p=8786#comment-64711 Quality hack.

]]> By: mike http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64703 Sat, 28 Feb 2009 22:51:54 +0000 http://hackaday.com/?p=8786#comment-64703 awesome ! a new high-tech way to get cancer.

]]> By: larry http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64664 Sat, 28 Feb 2009 12:39:06 +0000 http://hackaday.com/?p=8786#comment-64664 Very nice. Nice hack.

]]> By: strider_mt2k http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64663 Sat, 28 Feb 2009 12:25:39 +0000 http://hackaday.com/?p=8786#comment-64663 Are there instructions for attaching this to a shark’s head?

No, seriously, it’s creative and retro-futuristic and is a winner.

it’s like a lighter you might find in “bioshock” which i am only now just playing.

]]> By: kyoorius http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64656 Sat, 28 Feb 2009 09:10:11 +0000 http://hackaday.com/?p=8786#comment-64656 Warning: Do not look into laser with remaining eye.

]]> By: rog8811 http://hackaday.com/2009/02/27/laser-lighter/comment-page-1/#comment-64654 Sat, 28 Feb 2009 08:58:34 +0000 http://hackaday.com/?p=8786#comment-64654 If you look at the video http://www.metacafe.com/watch/2493812/flip_top_laser_lighter/
You will see it took around 9 seconds to light a cigar, I would say that the batteries had been well used during the day before I made the video.

I would guess a laser bong would be quite easy… that would certainly blow some minds :)

Regards rog8811

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