Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Techhood 400mW RGB Unit.

Joined
Nov 1, 2006
Messages
549
Points
43
Mine came just this afternoon; here are the preliminary data:

rgbwp.gif

Power output peaks at 449mW.
This test was conducted on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.

rgb3.jpg

Beam terminus photograph on the test target at 12".


rgb4.jpg

Beam terminus photograph on a wall at ~8 feet.


rgbww.gif

Spectrographic analysis of this laser (all on).


rgbrn.gif

Spectrographic analysis of this laser (red), spectrometer's response narrowed to a band between 645nm and 655nm to pinpoint wavelength, which is 660.660nm.


rgbgn.gif

Spectrographic analysis of this laser (green), spectrometer's response narrowed to a band between 528nm and 538nm to pinpoint wavelength, which is 532.010nm.


rgbbn.gif

Spectrographic analysis of this laser (blue), spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint wavelength, which is 454.700nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/42/rgbw.txt

Current usage measures 961mA when powered by two 18650 cells in series.
My bench PSU doesn't quite have the balls to power the unit at its designed Vf=12 volts, so that measurement cannot be furnished...but let's try it just for sh**s and giggles...BBS...nope, nada. The red diode only comes on above threshold and produces an estimated 50 to 70mW of power. :cryyy:
 
Last edited:





Joined
Jun 22, 2011
Messages
2,431
Points
83
Very cool, thanks for the detailed review!

What does the dot look like at a bigger distance (say 100m)?
What does the beam look like at the night sky? Whitish all the way?
 
Joined
Jun 22, 2011
Messages
2,431
Points
83
Cool, pity it seems the 445nm is still multimode... I'd buy one if all three were single mode.
 

vk2fro

0
Joined
Nov 30, 2009
Messages
1,304
Points
63
Wonder how hard it would be to drop in one of the singlemode blues from DTR's shop?
 
Joined
Jun 22, 2011
Messages
2,431
Points
83
Not sure but if someone is to do that then they'd better change the DPSS green for a diode as well, that way it should be possible for the beams to overlap much better :p
 

vk2fro

0
Joined
Nov 30, 2009
Messages
1,304
Points
63
Yeah but then your starting to defeat the purpose of buying the module - a 520 green costs $130 odd, a PL450 is only a $40 upgrade ;)
 




Top