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FrozenGate by Avery

burning distances

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Skylight

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I have my blue ray up and running and just want to know what to expect for burning distances. Basicaly whats a max distance i should expect to burn tape, matches and pop a balloon? I understand that a lot of this is trial and error but just looking for an idea.
 





I have lit a match at about 6 feet away with my blu ray before. I think that really depends on your Ma's and what lens you have.
 
I have lit a match with mine from about 12 feet away.
Things I need to know.
What diode are you using?
How much current are you feeding it?
What kind of lense are you using?

If you bought this laser from someone, how many mW is the claimed output and where did you get it from?

Without this information, it truely is impossible to give you a real estimation.
 
I managed to pop a Sharpied balloon at about 20 feet with a PHR set to 150ma. For matches, tape, and general smoking of random objects, I tried it at distances out to about 2 feet. With better optics, I'm sure to distance could be extended. I saw a youtube video of some people using a green laser and a telescope setup to light fireworks fuse from across a lake. It has more to do with optics than raw power (that is, 150 mw won't do you much good if it's spread out all over creation.)
 
My record for white color headed match light with a 160 mW blu-ray and an acrylic Axixz lens is 12 feet. So true the optics can make a big difference, the dot can be quite concentrated. Also, with shorter wavelengths, scatter from air is a big influence on distance, for greatest distance with laser beam expander or efficient telescope optics, a red laser will actually out burn a violet due to scatter, the same thing that makes the sky look blue. For under 20 feet though the air scatter is a smaller effect, and mW's, dot size and absorption of the heated material are important factors, and in the case of matches, just how dry and free of any waxy coatings they may be made and coated by and what color they are all come into play. With just the right materials, it's possible to light matches that are ideal color, coating free and dry, with about 50 mW of tightly focused light.
 
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I am running a 803 diode with Rock star set at 130 ma. As for optics i am using the sure housing and lense as recommended by High Tech in one of their threads because it screws in further and allows to focus into infinity as it said.
 
Skylight said:
I am running a 803 diode with Rock star set at 130 ma. As for optics i am using the sure housing and lense as recommended by High Tech in one of their threads because it screws in further and allows to focus into infinity as it said.
Click to expand...

Well that is a tough call then. If you have the laser mounted, then the distance will be much longer than if you are trying to do it by hand.

As for your distance, I can't honestly tell you for sure. I have had a PHR-830t @135mA light a match at 5 to 6 feet away. I couldn't get it to go any further. But like other people have said, Optics play a big role in your lasers burning capabilities. If you want to have maximum burning abilities for your PHR diode, PM Jayrob for his special 405nm lense. It will give you about a 20% to 26% increase in power!! And trust me, It does. :) I bought one myself.

When I mentioned that I was able to light a match from over 12 feet away, I was using a SF-AW210 diode @185mA. I however, do not recomend this diode to anyone due to the fact that they are very unpredictable. If you want a strong diode buy a GGW-H20L.
 
I got my 803T at 120ma to light a sharpied match at 13 feet, after that the collimation just got too poor.

As mentioned before, it will have a lot to do with your power and how well you can collimate the light over a distance.

Ryan
 
you forgot to say its a Kryton black @ 125ma rckstr micro driver pushing 100+mw
powered by 2 cr123-a's

EDit ok its in your sig I'll shut up now
 
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