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

How to Register on LPF | LPF Donations

Blu-ray laser

D

Dandeman321

0
Joined
Aug 18, 2007
Messages
12
Points
0
I just finished my blu-ray laser with the diode out of a PS3 assembly. I did a test and the light is very, very faint and barely shows up a couple of feet away on the wall. I was thinking that it was not getting high enough current but when I turned it up and measured the current to be 60mA it had not improved. Are these lasers just really dim? I have UV Leds that are bright than this....
 





Dandeman321 said:
I just finished my blu-ray laser with the diode out of a PS3 assembly. I did a test and the light is very, very faint and barely shows up a couple of feet away on the wall. I was thinking that it was not getting high enough current but when I turned it up and measured the current to be 60mA it had not improved. Are these lasers just really dim? I have UV Leds that are bright than this....
Click to expand...
It sounds like you killed it. Either heat from soldering or static electricity. :-[
 
Try it on a fluressent surface like white paper, otherwise they are quite dim. what is the threshold current? 60ma is VERY high.
 
Dan --
I asume you read that most of us are staying at about 40 mA for these BR diodes. It is not a green laser with the bright beam. What kind of heatsink do you have it mounted in and did it focus?

Mike
 
I saw on a site that the current was rated from 70mA to a max of 90mA. I have it inside a axiz housing. I turned it back down to around 40mA since I saw that everyone was around there. I was real careful to quickly solder the legs to the wires and i kept it in a static bag... It would focus but only a foot away from the housing at max. Otherwise it looked sort of rectanglish with a dim circle around it from far away. It does have a focusing lens. I did try it on a white paper and it does get brighter but not too much.
 
Sounds like it has turnd into a LED i'm afraid, is it hot?
 
Yea I think it does get kinda warm.... How could I have blown it if I set the current to 30 something to start with... I didn't see a big flash of light either :/
 
Short the cap? Hrm i did test the cicuit with a LED and that probably charged up the cap, then I soldered on the LD... So you're saying the cap discharged through the LD blowing it?
 
Yes i think so, it is possible. BR are very fragile. R.I.P. :'(
 
Give it a go, you have nothing to lose IMO.
I can feel your pain :-/
 
You must log in or register to reply here.


Back
Top