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

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

What diodes and power are these?? BMW Laserlight

Yea, I read another article saying 445nm works well and then later read 405 is better. I will try at 405nm next and see what I find as it is supposed to be the best wavelength which will be interesting, since 405nm is so much fainter to the eye than 445nm blue.
 
Last edited:





Well, they use a pellet in those headlights, right? I bet the chemistry in those is biased towards 405 producing the brightest color white because my disk doesn't respond well at all to 405nm. I tried 980mw of 405nm and it is far lower output than my 1.9 watt 445nm blue and the color spectrum isn't nearly as white, more yellow-white.

I put both beams on the disk and 445nm produces about 20 times more brilliant white light than 405nm which when compared side by side, the 405nm "white" product looks more violet-white. It must be a chemistry bias toward 445nm on this particular product.

Edit:

More testing done: The white light coming off of the remote disk doesn't want to collimate like a laser beam, I guess that should be no surprise, given the large diameter. If I had a tiny bead made out of this material and passed the 445nm beam through it, I think it would collimate into a tight white light beam very nicely, but never as tight as a regular laser beam.
 
Last edited:
405nm is used cause it gives them a wider gamut of color to work with. I made a light using a yellow highlighter cap and my 0.5 watt 405nm pen. It was in 560nms and i put it through a telescope and actually hit a car parked in my yard at night that was 80 feet away. 445nm can only make things give out 460+nm light.
while 405 lets you get the whole spectrum of ROGBIV.
 
Last edited:
The disk I have puts out a brilliant white light with a ever so slight tint of blue when illuminated with 445nm, or close to it, using an M140 laser and by comparision a somewhat dim yellow-white at 405nm with some visible violet too, as you mentioned, but difficult to see unless doing a side by side check. Of course, white has lots of colors in it anyway, I will post a graph showing the spectral output of one of these. The seller I bought my remote phosphor disks from is telling me these disks are specifically for 450-460nm. As a point of interest, he offers them in 2700K, 3000K and 4000K spectrum output but they are made up to 5000K, perhaps more.

Reading one of RHD's posts, the M140 diodes commonly put out closer to 452nm

input_zpsoyovds8r.jpg
dfc0d4ba-b6d1-402b-8455-095a2aa8f00e_zpsrgbq4in4.jpg


What's this you are telling us about that yellow highlighter cap? There was something in the cap which caused 405nm to put out 560nm? Can you pass on which highlighter so I can get one to try it with? Or, are you yanking my chain, lol?
 
Last edited:
You must log in or register to reply here.





Back
Top