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FrozenGate by Avery

250mw laser

kiyoukan

kiyoukan

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Oct 24, 2009
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kiyoukan said:
looking for a very bright and power full blue laser. Planing for it to be used with diffraction glass. This seller has 2 versions a 150mn for 30$ and a 250mw for 66$
Is there any way without buying to know if these are any good?
250mW+ 405nm Blue-Violet Laser Diode Module, Glass lens - eBay (item 270472859300 end time Oct-26-09 23:01:24 PDT)
150mW 405nm Blu-ray Blue-Violet Laser Diode Module Kit - eBay (item 270471889947 end time Oct-25-09 05:25:08 PDT)
Thanks in advance for any advice.
Click to expand...

The seller is GREATLY overstating the capabilities of the diodes he is including. Spend some time reading here before buying these. If you still decide to go with that seller, limit yourself to the very bottom of his stated currents and outputs.

Peace,
dave
 
Also, these are NOT "blue" lasers, they are lasing at 405nm, a very deep violet color.

I too feel that these diodes are not capable of producing the power levels that are claimed
 
the 150mW is probably a PHR. The 250mW is probably a SF-AW210, but there's really no way to know for sure.

Either way, you can get those diodes and drivers from members on the forums for cheaper, and you'll know what you're getting.
 
kiyoukan said:
So then they are in fact 150 and 250mw lasers. I should not try to push them. All i need is a very bright blue or violet color laser. Been looking for a while for a very bright, focused or unfocused laser. Is there any way to tell if this is more powerful than 4X Blu-Ray Burning Diode [GBW-H10N] - $29.99 : Dark Lasers, The one-stop shop for all your DIY laser needs!
Click to expand...

Maybe I was just being too "kind" with my verbiage or you don't want to hear it --

He is LYING about what the diode will do

READ the postings here before buying anything from him. If you decide to buy from him anyway (although I think you would be crazy to do so) limit the one diode to 120mA (NOT 150mW) and the other to 150mA

Peace,
dave
 
Dave and several other kit sellers on this board ...
would give you a much better final product.

Search some of the posts on this board for more info on Blu-Ray laser kits.

LarryDFW
 
Okay i see what you mean. Buying from someone who is alrdy lying to you is a bad idea. So now as for the use of the laser i am not looking to burn anything i just want it to be super bright. is asking for a 250mw laser to much for the dragon-laser diffraction glass? What nanometer would be the brightest for a blue or violet laser? The laser could be in use for long periods of time. (i do not have the money for a lab laser) i have a heat sink ready for the laser and a cnc machine ready to modify it to fit. Newegg.com - Rosewill RCX-Z90-AL 92mm Sleeve CPU Cooler - CPU Fans & Heatsinks it might be over kill, but better safe than sry. any advice?
 
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kiyoukan said:
Okay i see what you mean. Buying from someone who is alrdy lying to you is a bad idea. So now as for the use of the laser i am not looking to burn anything i just want it to be super bright. is asking for a 250mw laser to much for the dragon-laser diffraction glass? if its to over powered what might be a better alternative? The laser could be in use for long periods of time. (i do not have the money for a lab laser) i have a heat sink ready for the laser and a cnc machine ready to modify it to fit. Newegg.com - Rosewill RCX-Z90-AL 92mm Sleeve CPU Cooler - CPU Fans & Heatsinks it might be over kill, but better safe than sry. any advice?
Click to expand...

NO 405nm laser is going to be "super bright."

Peace,
dave
 
Real blue lasers (like 473nm) are DPSS and are quite expensive. I have yet to hear of one at a price anywhere near $50.00. This is still not a super bright beam like 532nm green. The eye is less sensitive to blue, even less to violet. You would need fog, or a really powerful lab style 473nm to have a bright beam.
 
I believe some folks confuse the output power of a laser with overall 'brightness'. Sure a 250mw 405nm beam would look brighter than a 150mw 405nm beam under the same conditions but as it has been stated before, that wavelength is hard to see so even a 50mw 532nm would look way brighter than a 250mw 405nm.
 
there are no "blue" diodes that you can afford with 50, 500 or 5000$...
 
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