Dealextreme 30mW Green Module???

Hey folks,

30mW Green Laser Module DX

Does anybody has this green laser module and did some of you has ran some test on it...

Is really 30mW or somewhere near that
Does anybody know how much current does it need to drive the IR diode at optimal near max power without damage...
Can I put another lens in front of the aperture to tighten the beam and does it need special coating? or acrylic will work
If I put a stronger IR diode will it become more powerful or the crystal should be changed as well


I am planning on using my own driver for this ... but I haven't yet ordered the module so I want to make some preparations until it gets here...

thank you guys, don't be to rough ... this will be my first DPSS laser I have ever dealt with

EDIT: pls keep to the point if you have nothing to say on the topic don't post like lovellaser there

-Tom

lol too much those blue smiley's

It will probably do abour 25 mW

But why would you make your own driver if it already got it's own driver ?

Ehm putting a stronger IR diode will for sure mess up the whole laser
( not a good idea )

putting a lens infront will mess up the beam



:beer: :beer: :beer: :beer:

:beer: thanks weeba2kv!

I want to put my own driver because I don't want to be limited to 3V input!! And a lot of people have fried their boards or diodes with this module injecting more than 3V into it... and it certainly doesn't suit me....

That's why I need to know the maximum safe current to power this module.. I don't like the switch and the pot there too.. those tiny pots are so sensitive it certainly can't hold a stable resistance value and they are likely to fail and the current will vary... :gun:

In the description of DX they have stated 250mA but that's on their every green module even the 200mW ?? SO I can't trust that being accurate...

So if anyone does know the maximum safe current pls share

As for the lens... I want to be able to focus the beam when I put this in a host without using screwdrivers and such... I think I will make a custom focus knob to rotate the lens cap

So nobody knows the safe current ... or nobody wants to answer me ...... thanks for the help! :undecided:

foulmist said:

So nobody knows the safe current ... or nobody wants to answer me ...... thanks for the help! :undecided:

Click to expand...

You can probably be safe with 250-300mA.
There is not really any point in trying to drive it harder. These modules are unstable enough as they are. More power will just make the laser more unstable.

If you want more power get a better module.

As for making the laser focusable... the lens is glued into the module with some thread lock. It's almost impossible to free it without destroying something. Besides, with such a small beam diameter (compared to diode lasers) you will only be able to get a sharp focal point within 12" or so which is not very useful - especially with only 30mW. It will be too dim for wide area illumination and too weak for burning.

thanks there man,

the only reason I was asking for the current is because I want to use my own driver or some other.. because these module drivers are limited in voltage input to 3V.. I just need a wider range I don't need power to burn with this either..

thanks again +1 :beer: