1mW 405nm Violet Laser

Re: Cheap 1mW 405nm Blue Laser

Magel282 said:

[quote author=691175002 link=1235563808/0#13 date=1235612548]I highly suspect this "1mW" laser is an order of magnitude and then some more powerful than claimed.

I find that you don't get the fuzzy effect unless you are at least 10 or so mW and a visible beam suggests 50mW+.

All the better!

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Hmm doubt it would be anything close to 50mW. The beam is only just visible in pitch black and I have to be staring down along the laser pointer to see it. Id like other opinions on this if possible from their experiance with the violet lasers. Is there a way to test the amps output with a multimeter. I have a small meter but it doesnt register anything no matter what its hooked upto when measuring amps. Think its to crappy.

Will post some pics of the laser shortly .[/quote]

Heres the pics -

Re: Cheap 1mW 405nm Blue Laser

Magel282 said:

Hmm doubt it would be anything close to 50mW. The beam is only just visible in pitch black and I have to be staring down along the laser pointer to see it. Id like other opinions on this if possible from their experiance with the violet lasers. Is there a way to test the amps output with a multimeter. I have a small meter but it doesnt register anything no matter what its hooked upto when measuring amps. Think its to crappy.

Will post some pics of the laser shortly .

Click to expand...

Sorry. There is no way to tell without a laser power meter. This is one of the reasons I want to check one out. If these are more powerful but "listed" as 1mW so they can be imported into Oz, we need to know so people won't be shining a 50mW laser light around like a toy. I sure don't care if they are more powerful. I sell lasers MUCH more powerful than this. I just want to make sure people aren't harmed because they just didn't know.

We need someone to evaluate these modules.

Peace,
dave

Re: Cheap 1mW 405nm Blue Laser

shit i want one of these

Re: Cheap 1mW 405nm Blue Laser

daguin said:

[quote author=Magel282 link=1235563808/0#15 date=1235616565]
Hmm doubt it would be anything close to 50mW. The beam is only just visible in pitch black and I have to be staring down along the laser pointer to see it. Id like other opinions on this if possible from their experiance with the violet lasers. Is there a way to test the amps output with a multimeter. I have a small meter but it doesnt register anything no matter what its hooked upto when measuring amps. Think its to crappy.

Will post some pics of the laser shortly .

Click to expand...

Sorry.  There is no way to tell without a laser power meter.  This is one of the reasons I want to check one out.  If these are more powerful but "listed" as 1mW so they can be imported into Oz, we need to know so people won't be shining a 50mW laser light around like a toy.  I sure don't care if they are more powerful.  I sell lasers MUCH more powerful than this.  I just want to make sure people aren't harmed because they just didn't know.

We need someone to evaluate these modules.

Peace,
dave[/quote]

Aggred. The output should be tested. What does the testing process involve? Just looked at the manual that came with it. It has some boxes that say -

CE - FDA- RoHs - PAHs
Also it says - Global ISO 9001:2000 and UKAS QUALITY MANAGMENT 039.

Re: Cheap 1mW 405nm Blue Laser

Do you have a close up of the driver? Id like to see what they are using

Re: Cheap 1mW 405nm Blue Laser

wannaburn said:

Do you have a close up of the driver? Id like to see what they are using

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Pics of both sides -

Re: Cheap 1mW 405nm Blue Laser

Where did you get it?

Re: Cheap 1mW 405nm Blue Laser

It must be a boost and buck (BB code may be a clue ), can you get any idea of the current draw of the LD by measuring the ma from the battery indirectly with a 1ohm with BB circuits?

Regards rog8811

Re: Cheap 1mW 405nm Blue Laser

Looks like a NewWish bluray or at least they use the same hosts.

Would be interessting if they could sell the drivers only in bulk packs

Re: Cheap 1mW 405nm Blue Laser

I highly suspect this "1mW" laser is an order of magnitude and then some more powerful than claimed.

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I agree. In my experience, a 5mW blu-ray is pretty dim, and certainly no visible beam..

Re: Cheap 1mW 405nm Blue Laser

Magel282 said:

Hi guys. Just received a cheap 1mW 405nm Laser Poiner. When I turn it on and shine it at my wall the dot looks all fuzzy. But on different objects it looks like a solid dot. Is this a normal function of the 405nm's? Also I cant see the beam either. I have tried adjusting the focus lens but it still looks fuzzy at best focus point.

Edit: Just tried it outside in the dark and I can see the beam.

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Hey Magel282....
where did you buy it and how much did it cost... :-? :-? :-?

Jerry

Re: Cheap 1mW 405nm Blue Laser

http://newwishlaser.com/english/product.asp?BarKind=61&BarName=Blue%20Laser%20Pointer(B)#

Re: Cheap 1mW 405nm Blue Laser

cheap ey, how much???
1mw ey, sound good for them importins.

Re: Cheap 1mW 405nm Blue Laser

caleb said:

cheap ey, how much???
1mw ey, sound good for them importins.

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Hmm...
Are you Canadian? :

Re: Cheap 1mW 405nm Blue Laser

Why would that circuit be buck-boost, if it's only boosting current? You as a manufacturer don't want to pay a penny more than you need. I must say, that pot looks like mighty good fun to turn as far as possible  ;D. If the beam is only visible from behind then it could be up to 50mw - my green pointer at 100 chinese mw (no known conversion rate except via a power meter) is much more visible when you're looking down it. I know it can't be compared exactly because of perceived brightness though. From memory, an 85mw blu-ray one had a clear beam in darkness with a visible beam in semi-darkness, and could light matches instantly and smoke paper.

An odd theory I had is that receipt paper, sharpied black, could be a good universal and simple power meter. Obviously it wouldn't be an accurate test, but we could record the extent of damage our laser does when focused on a receipt, obviously the more powerful the laser the more immediate and severe the damage is. An issue is that sharpie ink can be seen through in 532nm - when I shine a green pointer unfocused on my desk, using goggles I can see the burn marks beneath the sharpie scribbles.

Re: Cheap 1mW 405nm Blue Laser

Droyd said:

http://newwishlaser.com/english/product.asp?BarKind=61&BarName=Blue%20Laser%20Pointer(B)#

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That doesn't seem to be the same laser pointer..... The labels are not the same....
and there is no price... :

Jerry