445nm to light candle?

[RedDart]

How much mW would it take to ignite a candle? (Light it) using a 445nm laser!

 

[DrSid]

My 1.5W can do it so so .. todays 2W builds should do it.

 

[corey5188]

My 1.5W can do it so so .. todays 2W builds should do it.

Lighting it for the first time (white wick) or relighting?

 

[0331usmc]

I was able to relight a wick with a lazerer 1.2w stick. If you hold the laser straight over the candle the smoke will interfere, however.

 

[corey5188]

I was able to relight a wick with a lazerer 1.2w stick. If you hold the laser straight over the candle the smoke will interfere, however.

Relighting seems to make more sense.... lighting a candle thats never been lit seems like the white wick might be a tougher job.... then again, I guess it probably would turn black rather quickly from the laser itself, then absorb more light and light up....

I'll have to try this with my 1.7w....

 

[RedDart]

Relighting seems to make more sense.... lighting a candle thats never been lit seems like the white wick might be a tougher job.... then again, I guess it probably would turn black rather quickly from the laser itself, then absorb more light and light up....

I'll have to try this with my 1.7w....

I was able to light a candle with an M-140 with 1,35A linear driver... What do you think my output is? (3 element lens)

 

[corey5188]

Best guess would be around 1300mw +/-100

 

[RedDart]

Best guess would be around 1300mw +/-100

Mmm I need to get a G-2 lens in there :crackup:

 

[corey5188]

The beam specs arent as good.... personally I'd rather have a more "laser like" beam over a higher power "flashlight like" beam...

 

[RedDart]

The beam specs arent as good.... personally I'd rather have a more "laser like" beam over a higher power "flashlight like" beam...

Is it that bad when focused to infinity? What's the difference?

 

[corey5188]

I cant say from personal experience, but I've read about them/seen pictures and I personally like the tighter beam made by the 3-element lens. At 10yrds its about twice the size as a 3-element lens dot at the same distance. It still definitely looks like a laser, but the beam specs are definitely not for pointing long distances or keeping the laser like profile.

These G-2 and G-1 lenses are definitely made with maximum output power in mind, but not so much the beam quality... so if you are only going to use your laser as a short distance burner, then go for it... Any lens that has 1 element is going to make better power than a 3 element lens. I think the 9mm diodes have a single element glass lens, which means more power, AND they have a tight beam profile.... Not certain on that but I have seen others talking about it on here...

 

[RedDart]

I cant say from personal experience, but I've read about them/seen pictures and I personally like the tighter beam made by the 3-element lens. At 10yrds its about twice the size as a 3-element lens dot at the same distance. It still definitely looks like a laser, but the beam specs are definitely not for pointing long distances or keeping the laser like profile.

These G-2 and G-1 lenses are definitely made with maximum output power in mind, but not so much the beam quality... so if you are only going to use your laser as a short distance burner, then go for it... Any lens that has 1 element is going to make better power than a 3 element lens. I think the 9mm diodes have a single element glass lens, which means more power, AND they have a tight beam profile.... Not certain on that but I have seen others talking about it on here...

Alright thanks I guess I could get a G2 and just attach it to a second focus adapter and alternate

 

[corey5188]

Here's a picture from over in the 445nm section.... Shows the beam profile of the 405-G-2, but this isnt focused to infinity....

http://img834.imageshack.us/img834/5931/20130122192151.jpg