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

505nm and 480nm diode RESULTS

  • Thread starter Thread starter Deleted member 16589
  • Start date Start date
Dr.Laser, I got a tracking update on the diodes coming to me from China. They have passed through customs here in Los Angeles and are on their way to me now. Looks like the Monday arrival date is right on time.
 





badboybilly, I also wish we had lower current blackbucks. I'm going with the LT3083 linear regulator to have an external pot on mine.

After seeing DTR's tests I was inclined to set max current at 400mA in hopes of a wavelength shift but with the recent reports I might settle for 200-250mA...


jnrpop said:
My feeling is its either these really are preliminary diodes that the manufacturer couldnt stand behind, with quality, life expectancy and warranty....or they are extremely sensitive to the Boost circuitry on startup with above 120mA current settings.

I've been running a 505 (SB147EC91) diode @ 150mA-200mA on my Benchtop PS (slow increase in voltage till the limit of 150 or 200mA is reached, and then held there for 2-5mins) No Problems so far!
and
Running the 473-480nm Diode @ 250mA, same setup on the Benchtop PS, soft start till the limit of 250mA is reached. Same, no problems so far!

And some pictures for the beam fans :beer:
Click to expand...

How is the color compared to the overdriven 462nm?
 
Atomicrox said:
badboybilly, I also wish we had lower current blackbucks. I'm going with the LT3083 linear regulator to have an external pot on mine.

After seeing DTR's tests I was inclined to set max current at 400mA in hopes of a wavelength shift but with the recent reports I might settle for 200-250mA...




How is the color compared to the overdriven 462nm?
Click to expand...

It's a big difference buddy this colour is just stunning big difference I wish I could show it but I can't,
New diode in my Led Lenser know I went with 250ma this time 200 is just not enough power in my opinion I like this colour so much I want to see it clear,

Here's a few pics of the 2nd diode but still doesn't show the lime tint!
 

Attachments

  • 0cH7Hi0.jpg
    0cH7Hi0.jpg
    289.8 KB · Views: 75
  • rDmCYUa.jpg
    rDmCYUa.jpg
    502 KB · Views: 75
  • e1YKmuk.jpg
    e1YKmuk.jpg
    191.9 KB · Views: 95
Im loving the color of this "480" diode, but just like in badboybilly's pic, I'm getting a nuts amount of back reflection(i can't think of the term we use for the little square :P long week). I'm using one of those full spectrum G lenses. Anyone have better luck taming this beast with a different lens?
 
I haven't finished building mine yet, but I have a lot of lenses. I'm hoping one of them will work with this diode. I used an aspheric plano-convex lens to measure power, but never focused it farther off than the LPM sensor or the back stop for my fiber optic cable on my spectrometer. I guess I'll find out when my driver gets here.
 
On the drive current there are always going to be risks with a new diode with little data over time when driving above the rated but reading the most recent posts on this thread I would like to hear more about the drivers running these diodes. I sent out 18 of the 473nm(got 20, lost one in testing and kept the other test as a personal) diodes and over 30 of the 505nm all with nano driver set to 275mA and have yet to have anyone say they have lost one. Everyone made it though testing before being sent with no failures. If anyone has please let me know.

I have heard from I would say at least half of the people that received the 473nm diodes saying how awesome the color is but would like to get some data on how they do over the long run.
 
Last edited:
I'm running mine @200mA with a lazerer x-boost v7 I believe, the older one that is boost only and has a pot vs set resistors. Will make sure to mention if anything happens to mine. I was going to bump it to 300mA for the further shift in wavelength but did not want to push a rare diode so far past what it is rated for.
 
Hi BBB,
Yes i really miss those drivers with the ramp up feature a lot . i used to get them with a 10 to 14 millisecond ramp up all the time . Still have a lot of personal builds that have that driver feature on them. As a matter of fact the NDB7A75 i just built with a BE lens has that long ramp up. I don't see why who ever makes these drivers stoped adding this feature. Soft start seems to be not a long enough ramp up like 10 to 14 milliseconds .

Rich:)
 
DTR said:
On the drive current there are always going to be risks with a new diode with little data over time when driving above the rated but reading the most recent posts on this thread I would like to hear more about the drivers running these diodes. I sent out 18 of the 473nm(got 20, lost one in testing and kept the other test as a personal) diodes and over 30 of the 505nm all with nano driver set to 275mA and have yet to have anyone say they have lost one. Everyone made it though testing before being sent with no failures. If anyone has please let me know.

I have heard from I would say at least half of the people that received the 473nm diodes saying how awesome the color is but would like to get some data on how they do over the long run.
Click to expand...


Jordan, what's the chance of you getting any more of those 473nm's in stock?
 
Even if these are sensitive like the 405s I think it's a no brainier weather or not they will be popular and weather to get more, if you can get more that is! Both Lifetime and I are using xboosts mine is at 250ma I think lifetimes at 275ma !
 
Zach, what driver did you use in yours? I'm curious as it might make a difference. Can't say for sure, but I would like to know. I have the Nano Boost coming for mine.
 
Nano @ 275mA

Subjected the 474.5 to a 2 minute on, then immediately rapid fire off on off on for 30 seconds or so. Works fine.
Then 10 minutes on. Off, turns on just fine.
Played mario kart for an hour to cool it off, then did rapid fire off on off on.

It ain't dead yet. Which is a good sign...

...good enough for me to set up the 480 to look at a bit. Hands down my favorite laser ever for the color. Its noticibly closer to 488 than it is to 472 in color. But I'm still scared to run it until I can abuse the 474.5 enough. To be continued tomorrow.
 
Good to know. That's the driver I have coming and the current I am planning on setting it to, or rather leaving it set to. Good luck with your other one. :yh:
 
ZRaffleticket said:
Nano @ 275mA

Subjected the 474.5 to a 2 minute on, then immediately rapid fire off on off on for 30 seconds or so. Works fine.
Then 10 minutes on. Off, turns on just fine.
Played mario kart for an hour to cool it off, then did rapid fire off on off on.

It ain't dead yet. Which is a good sign...

...good enough for me to set up the 480 to look at a bit. Hands down my favorite laser ever for the color. Its noticibly closer to 488 than it is to 472 in color. But I'm still scared to run it until I can abuse the 474.5 enough. To be continued tomorrow.
Click to expand...


That's good to here Zach awesome, that 480 must be bloody awesome I'm glad it worked out and I can't wait to see it hopefully your camera shows it better!
 
I'll be shopping my review pictures to get the colors as close as I can. Had to for the 561nm a while back
 
You must log in or register to reply here.


Back
Top