Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > 445nm Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 12-12-2011, 11:14 AM #1
TuhOz's Avatar
Class 2 Laser
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
TuhOz TuhOz is offline
Class 2 Laser
TuhOz's Avatar
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
Default What happened to this laser?

Alright, so I bought Jayrob's Stainless Steel 18650 -kit + a diode w/ leads from DTR.

I soldered the drivers leads to diodes, and then I put the laser together. Host was Aurora SH-032.

I hooked up the laser with a cheapy 3000mah rated 18650, but the dot was dim, and it couldnt turn on always.

The dot got suddenly dimmer, after some time, and now it looks like this



Then I ordered high quality 18650 from LarryDFW
Tried it, no change. And it still turns on just sometimes

Anyone know what is the problem?

Diode: A140
Driver: V5 Flexdrive

Thanks


__________________
Finnish Power
TuhOz is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 12-12-2011, 11:36 AM #2
mark-in-dallas's Avatar
Class 2 Laser
 
Join Date: Apr 2009
Location: Dallas Texas
Posts: 402
Rep Power: 100
mark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond repute
mark-in-dallas mark-in-dallas is offline
Class 2 Laser
mark-in-dallas's Avatar
 
Join Date: Apr 2009
Location: Dallas Texas
Posts: 402
Rep Power: 100
mark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond reputemark-in-dallas has a reputation beyond repute
Default Re: What happened to this laser?

Well I am not an expert, but the dot pattern is strange. It sounds like you LED'ed the diode though.

What lense are you using wiht it, because that one looks like it may be blocking part of the beam to me, and if so there could have been enough heat retained in the module to kill the diode.

When you connected the diode did you take ESD precautions? Short the connections on the driver before connecting the diode? Use an ESD safe soldering iron? Not put to much heat to the diode or leave the soldering iron to it for long?

The diodes are sensitive little creatures and any of the above can kill them, and I should know because I have LED'ed a couple myself on my early builds.
mark-in-dallas is offline   Reply With Quote
Old 12-12-2011, 11:47 AM #3
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: What happened to this laser?

It sounds to me as if you hooked up the diode to the battery directly.

445nm diodes directly driven by Lithium ion cells are somewhere between 50-200mW output depending on the battery charge level etc.

Try re-checking your connections, if you're unsure you can take a macro picture of the setup so we can take a look?

Let us know how it goes.
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 12-12-2011, 11:57 AM #4
TuhOz's Avatar
Class 2 Laser
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
TuhOz TuhOz is offline
Class 2 Laser
TuhOz's Avatar
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
Default Re: What happened to this laser?

Quote:
Originally Posted by mark-in-dallas View Post
Well I am not an expert, but the dot pattern is strange. It sounds like you LED'ed the diode though.

What lense are you using wiht it, because that one looks like it may be blocking part of the beam to me, and if so there could have been enough heat retained in the module to kill the diode.

When you connected the diode did you take ESD precautions? Short the connections on the driver before connecting the diode? Use an ESD safe soldering iron? Not put to much heat to the diode or leave the soldering iron to it for long?

The diodes are sensitive little creatures and any of the above can kill them, and I should know because I have LED'ed a couple myself on my early builds.
This kit:
FS: Stainless Steel 18650 Kit! Polished! Perfect for 445...


I use AixiZ 445 glass lens..
I cant remember did I short the drivers connections... Stupid me.
And I only soldered two wires together, I didnt solder the diode directly..


And the laser could burn matches etc - but Imo it wasnt outputting ~1.2W
Then just one morning, the dot has turned to that (picture in OP)

Now the laser wont even turn on...


@Eudaimonium
Alright, I'll make a picture of the build soon.

I will check the connections. Thanks

Edit:
Okay heres some pictures of the build

It goes like that



Here is my driver pill soldered to diode (sorry for bad quality)





And this might help too




Everything looked okay from inside.
__________________
Finnish Power

Last edited by TuhOz; 12-12-2011 at 12:29 PM.
TuhOz is offline   Reply With Quote
Old 12-12-2011, 04:47 PM #5
ped's Avatar
ped ped is offline
Class 3B Laser
 
Join Date: Nov 2008
Location: Liverpool , UK
Posts: 4,915
Rep Power: 7046
ped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond repute
ped ped is offline
Class 3B Laser
ped's Avatar
 
Join Date: Nov 2008
Location: Liverpool , UK
Posts: 4,915
Rep Power: 7046
ped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond repute
Default Re: What happened to this laser?

Where is the negative of the driver input connected to?
__________________
@Ped0771

5000mW Coherent/Kenometer

Lazoors:
550mW C6 9mm lens
445nm Blord "Big Boy" 3.36w 9mm lens
445nm Jarob C6 kit (on 3rd diode) 1.9w 9mm lens
Various 532n nm 15mw pens ~ 600mW monster
515nm 34mW Direct Green Diode - LaserBtB
Various 650's - 1mW pens upto 300mW C6's
ped is offline   Reply With Quote
Old 12-12-2011, 05:44 PM #6
TuhOz's Avatar
Class 2 Laser
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
TuhOz TuhOz is offline
Class 2 Laser
TuhOz's Avatar
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
Default Re: What happened to this laser?

Quote:
Originally Posted by ped View Post
Where is the negative of the driver input connected to?
What you mean?

The driver is connected to a spring, which touches the battery
__________________
Finnish Power

Last edited by TuhOz; 12-12-2011 at 06:48 PM.
TuhOz is offline   Reply With Quote
Old 12-13-2011, 12:37 AM #7
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: What happened to this laser?

Quote:
Originally Posted by TuhOz View Post
What you mean?

The driver is connected to a spring, which touches the battery
And the other input of the driver?

I see the case pin of the diode is not used, so you must be using the outter ring of the contact board...

Wait, that is a contact board, right?

What driver is this using? I hope that 17mm board is not actually the driver, because if used as case positive, it's connected backwards.

And I have not seen many case positive 445nm builds, they are very uncommon.
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 12-13-2011, 12:42 AM #8
Lasermodder's Avatar
Class 1M Laser
 
Join Date: Oct 2011
Location: California
Posts: 144
Rep Power: 6
Lasermodder is on a distinguished road
Lasermodder Lasermodder is offline
Class 1M Laser
Lasermodder's Avatar
 
Join Date: Oct 2011
Location: California
Posts: 144
Rep Power: 6
Lasermodder is on a distinguished road
Default Re: What happened to this laser?

Quote:
Originally Posted by TuhOz View Post
Alright, so I bought Jayrob's Stainless Steel 18650 -kit + a diode w/ leads from DTR.

I soldered the drivers leads to diodes, and then I put the laser together. Host was Aurora SH-032.

I hooked up the laser with a cheapy 3000mah rated 18650, but the dot was dim, and it couldnt turn on always.

The dot got suddenly dimmer, after some time, and now it looks like this



Then I ordered high quality 18650 from LarryDFW
Tried it, no change. And it still turns on just sometimes

Anyone know what is the problem?

Diode: A140
Driver: V5 Flexdrive

Thanks
Thats exactly what mine now looks like!
Lasermodder is offline   Reply With Quote
Old 12-13-2011, 06:42 AM #9
ped's Avatar
ped ped is offline
Class 3B Laser
 
Join Date: Nov 2008
Location: Liverpool , UK
Posts: 4,915
Rep Power: 7046
ped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond repute
ped ped is offline
Class 3B Laser
ped's Avatar
 
Join Date: Nov 2008
Location: Liverpool , UK
Posts: 4,915
Rep Power: 7046
ped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond repute
Default Re: What happened to this laser?

Quote:
Originally Posted by Eudaimonium View Post

What driver is this using? I hope that 17mm board is not actually the driver, because if used as case positive, it's connected backwards.
He's using a flexdrive, so he states in his OP.


The driver should have a + and - connection on the input, just as it does on the output, if your relying on the output "-" , then you may have a problem, unless as has been pointed out, its case positive, which would be unusual. The driver has a "-" input , solder a wire from it, to the outer ring of the battery contact board. 445's draw a lot of current, and relying on one "-" to carry through one small gauge wire may be the problem.
__________________
@Ped0771

5000mW Coherent/Kenometer

Lazoors:
550mW C6 9mm lens
445nm Blord "Big Boy" 3.36w 9mm lens
445nm Jarob C6 kit (on 3rd diode) 1.9w 9mm lens
Various 532n nm 15mw pens ~ 600mW monster
515nm 34mW Direct Green Diode - LaserBtB
Various 650's - 1mW pens upto 300mW C6's

Last edited by ped; 12-13-2011 at 06:45 AM.
ped is offline   Reply With Quote
Old 12-13-2011, 10:32 AM #10
Member
 
Join Date: Nov 2011
Posts: 35
Rep Power: 0
geeo is on a distinguished road
geeo geeo is offline
Member
 
Join Date: Nov 2011
Posts: 35
Rep Power: 0
geeo is on a distinguished road
Default Re: What happened to this laser?

I'm trying to get my head around how these connections work

So does the + input to the driver connect to the host casing to make the circuit? How has that been done...Is it soldered to the pill or just bare threads from the lead in the pill threads connecting to the host casing?

Is it the original battery orientation for the flashlight host that decides this or has this been altered by jayrob when building the kit for some reason that I am as yet unaware of?
geeo is offline   Reply With Quote
Old 12-13-2011, 12:37 PM #11
TuhOz's Avatar
Class 2 Laser
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
TuhOz TuhOz is offline
Class 2 Laser
TuhOz's Avatar
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
Default Re: What happened to this laser?

Quote:
Originally Posted by ped View Post
The driver should have a + and - connection on the input, just as it does on the output, if your relying on the output "-" , then you may have a problem, unless as has been pointed out, its case positive, which would be unusual. The driver has a "-" input , solder a wire from it, to the outer ring of the battery contact board. 445's draw a lot of current, and relying on one "-" to carry through one small gauge wire may be the problem.
Btw the battery in one of my pictures is backwards... oops.

The pill/driver, I only see two wires coming from it, that I've connected to the diode.
And a spring, that touches the batterys positive head. Like in one of the pictures


I will point this thread to Jayrob, I think he knows this better than me..

But there's one thing that I dont understand, the laser used to be pretty bright, 200-300mW @ TEM02 (if I remember righ), but then it suddenly changed to like that, to a perfect dot with a halo.




Thanks for help everyone
__________________
Finnish Power
TuhOz is offline   Reply With Quote
Old 12-13-2011, 04:58 PM #12
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is online now
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: What happened to this laser?

If you got the kit with my 'Hot' option, then the driver is getting it's connection to the host (battery negative) via the pill...

So you don't need to use the diode case pin if it was a 'Hot' option kit.

There is a warning in my instruction sheet to be careful not to install your battery before the diode is connected and installed. Because the driver will get damaged if powered without a load. (plus you will load the drive cap with voltage that can kill your diode when you connect it)

Off the top of my head, I do not remember what setting you ordered either. But from the looks of the pill, it looks like a thermal glued option. Meaning you probably ordered it with a 1 Amp or more setting. Possibly a 1.5 Amp setting?

If so, the most common problem, is the battery quality. I recommend AW brand. As is mentioned in my thread and my instruction sheet.

Battery capacity (or claimed capacity) is not what you look for. You need a high quality battery that can deliver a consistent current draw of over 2 Amps, and also the current draw will increase as the battery drains. (voltage drop)

The FlexDrive uses extra current to boost voltage demand. So this is why your battery must be a high quality battery.

I know Larry sells good batteries. But I still have seen many batteries fail. But never an AW battery:
AW 18650 Protected 3100 mAh Rechargeable Lithium Battery

The second thing you always check obviously, is the lens. To make sure it is not dirty or something. Or possibly even got loose. (the optics / retaining ring)

Third. Inspect the tiny diode window to see if it has gotten something on it. Or perhaps a loose diode window??

And finally, if all those things check out, you then must check the driver output with a test load. And/or the diode...
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!


Last edited by jayrob; 12-13-2011 at 05:02 PM.
jayrob is online now   Reply With Quote
Old 12-13-2011, 06:10 PM #13
TuhOz's Avatar
Class 2 Laser
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
TuhOz TuhOz is offline
Class 2 Laser
TuhOz's Avatar
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
Default Re: What happened to this laser?

@jayrob

Yeah, I ordered the Hot option @ 1.2A


I use Larry's Sanyo/Samsung 2700mah battery, and I think it should be good.


As I've sayed, the laser used to output like 200-300mW. I think that was becouse of bad batteries.


But somehow the dot turned to a perfectly circular dot with a halo. Dont know why it did that.

Could the driver be damaged, or the diode led'd or turned to a zombie?
__________________
Finnish Power

Last edited by TuhOz; 12-13-2011 at 06:11 PM.
TuhOz is offline   Reply With Quote
Old 12-13-2011, 06:16 PM #14
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: What happened to this laser?

Could you provide us a photo of the dot when its unfocused to about 2 feet? That will give us some clues..
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")
Meatball is offline   Reply With Quote
Old 12-13-2011, 06:56 PM #15
TuhOz's Avatar
Class 2 Laser
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
TuhOz TuhOz is offline
Class 2 Laser
TuhOz's Avatar
 
Join Date: Aug 2011
Location: Finland
Posts: 348
Rep Power: 18
TuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud ofTuhOz has much to be proud of
Default Re: What happened to this laser?

Quote:
Originally Posted by Meatball View Post
Could you provide us a photo of the dot when its unfocused to about 2 feet? That will give us some clues..


Without lenses






And the laser gets really warm if I keep it on ~50 seconds
__________________
Finnish Power
TuhOz is offline   Reply With Quote
Old 12-13-2011, 07:04 PM #16
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: What happened to this laser?

It doesn't look like there is any lasing going on there at all. The diode is either way over used/burned up, or way under threshold current, but if you say the diode gets hot then there must be some significant current flow through it..

This tells me that the diode has LED'd. Its a dead diode.

Now, you said it was working previously. So why the sudden death?

The one thing left that is even likely at all is that the connection between the diode and driver is flaky, which caused the driver cap to spike across the diode when briefly re-connected.

That is my theory.
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")
Meatball is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 12:07 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC