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 > Group Buys



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



Reply
 
LinkBack Thread Tools Display Modes
Old 11-01-2008, 06:02 PM #593
Class 3R Laser
 
Join Date: Feb 2008
Posts: 1,781
Rep Power: 117
Ace82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond repute
Ace82 Ace82 is offline
Class 3R Laser
 
Join Date: Feb 2008
Posts: 1,781
Rep Power: 117
Ace82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond reputeAce82 has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

red laser built! VERY nice diode!


Ace82 is offline   Reply With Quote







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







Old 11-01-2008, 06:13 PM #594
Spyderz20x6's Avatar
Class 3B Laser
 
Join Date: Nov 2007
Location: Redmond, WA
Posts: 2,756
Rep Power: 126
Spyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond repute
Send a message via MSN to Spyderz20x6
Spyderz20x6 Spyderz20x6 is offline
Class 3B Laser
Spyderz20x6's Avatar
 
Join Date: Nov 2007
Location: Redmond, WA
Posts: 2,756
Rep Power: 126
Spyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond reputeSpyderz20x6 has a reputation beyond repute
Send a message via MSN to Spyderz20x6
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by Ace82
red laser built! VERY nice diode! *
I built a crappy box style laser with it 8-)
Didn't have any ideal hosts ;D
__________________
Spyderz20x6

The Copperhead: 330mW Copper Heatsinked Pocket Pal w/ Meredith Glass Lens and Open Can Diode! See Here
1x 20x 650nm 250mW Burning Mini Laser
1x 20X Open Can 280mW Mini Pocket Burner in 4" Host
1x DX 532nm 10mW Laser
1x 780nm NIR Dorcy Jr. 250mW Laser
KES-400A PS3 405nm Blu-Ray 10mW
PHR-803T Mini 4 inch 405nm Blu-Ray 140mW

Are you a beginner, wanting to build a DIY laser, but do not have a clue about how? Well, then look here!


"its cool dont worrie about it its under controle"
-Jake21, 2009
Spyderz20x6 is offline   Reply With Quote
Old 11-01-2008, 06:34 PM #595
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 offline
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: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by danq
But I can say one thing for sure: that red LD is a tough little bugger!!
Nice data. 1.2 Amps!

Wow...
Jay
__________________
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!

jayrob is offline   Reply With Quote
Old 11-01-2008, 06:56 PM #596
thesk8nmidget's Avatar
Class 3R Laser
 
Join Date: Jul 2008
Location: Eugene OR
Posts: 1,415
Rep Power: 92
thesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond repute
Send a message via MSN to thesk8nmidget
thesk8nmidget thesk8nmidget is offline
Class 3R Laser
thesk8nmidget's Avatar
 
Join Date: Jul 2008
Location: Eugene OR
Posts: 1,415
Rep Power: 92
thesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond repute
Send a message via MSN to thesk8nmidget
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

hahah its now up to 191mw's *

and here are some pictures of my setup.. the TEC is not plugged in or powered up in anyway.


this is strictly just the heat sink.

well now some bad news... it died

here is the graph. sorry the graph doesnt show the death, the 9 volt battery died on my meter. but i now have a wall plug for it so that wont happen again.



its weird it was a completely flat 160mw for about 2 minutes then shot up to 175 within a few seconds! then kept climbing. the module never even got warm or anything.

now when i went to lunch i came back and the laser was still strong but the meter battery died it was about 1 and a half hours til it died


__________________
-Josh
thesk8nmidget is offline   Reply With Quote
Old 11-01-2008, 07:27 PM #597
Class 2M Laser
 
Join Date: Sep 2007
Location: The Left Coast
Posts: 835
Rep Power: 17
danq is a glorious beacon of lightdanq is a glorious beacon of lightdanq is a glorious beacon of lightdanq is a glorious beacon of lightdanq is a glorious beacon of light
danq danq is offline
Class 2M Laser
 
Join Date: Sep 2007
Location: The Left Coast
Posts: 835
Rep Power: 17
danq is a glorious beacon of lightdanq is a glorious beacon of lightdanq is a glorious beacon of lightdanq is a glorious beacon of lightdanq is a glorious beacon of light
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

nice... it's photos like those that keep me from posting shots of my workspace...

DanQ
danq is offline   Reply With Quote
Old 11-01-2008, 07:27 PM #598
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Oh crap!

Well, the climbing power could be the cause of death.. I was expecting 160-170mW, not 191mW, which translates to ~245mW raw output (guesstimated). But the question is, why did the power climb? What driver did you use for this test? How sure are you of the stability of current?

Usually, when i saw PHRs climb in power, it was always temperature related. It doesn't have to get noticably warm or even hot for this to happen. The difference between 20 and 24C could cause a 10mW climb on the weird diodes, that climb with temperature. If i let them run till they reached 25C or if i put them in the pocket till they reached 25C, the results were the same.

Several experts speculated, it could be a mirror alignment thing, because the actual efficiency of the diode can not climb with heat.


But 90 minutes is not very encouraging. *:-/

I sure hope not all of them climb with heat.
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 11-01-2008, 07:34 PM #599
styropyro's Avatar
Class 4 Laser
 
Join Date: Jun 2007
Location: Carbondale, IL
Posts: 5,259
Rep Power: 2895
styropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond repute
styropyro styropyro is offline
Class 4 Laser
styropyro's Avatar
 
Join Date: Jun 2007
Location: Carbondale, IL
Posts: 5,259
Rep Power: 2895
styropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

I just got all of the diodes out of their heatsinks, the blu was a little tricky but I got through it. What's left of the sled is a torn mess. ;D I sawed my way through everything so it looks like crap, but it doesn't really matter because it is going to be burned anyway. There are a ton of nifty little optics in this thing, I lost one of the beefier ones because it flew across my garage at high speeds when I clipped it out of its heatsink looking thing. :P I wish I could scrape up enough cash for another one of these sleds. :
__________________

Always protect your seeing balls!
styropyro is offline   Reply With Quote
Old 11-01-2008, 07:48 PM #600
rkcstr's Avatar
Class 3R Laser
 
Join Date: Dec 2007
Posts: 1,368
Rep Power: 142
rkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond repute
rkcstr rkcstr is offline
Class 3R Laser
rkcstr's Avatar
 
Join Date: Dec 2007
Posts: 1,368
Rep Power: 142
rkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

I was able to get my diode out pretty simply. First I removed the strange glass lens thing in front the diode, then I clipped the small tabs behind the back of the diode, then I took the small brass fitting I typically use for removing a diode from Aixiz modules and it fit right in the front of the heatsink piece. Then, I used the module's focus ring behind the diode and used a vise to press the whole assembly, pushing the diode out of the heatsink. It requires VERY little movement, so don't press too far or you'll smash and possibly break the diode pins, unless you have a deeper part behind the diode.

All and all, though it sounds complicated, it was much simpler than trying to cut the heatsink apart and probably safer for the diode since those vibrations may not be good for the diode.
__________________
Laser drivers and Test Loads - rkcstr.com

Enter discount code "LPF" during checkout to save 10% off of the regular prices!
rkcstr is offline   Reply With Quote
Old 11-01-2008, 07:50 PM #601
thesk8nmidget's Avatar
Class 3R Laser
 
Join Date: Jul 2008
Location: Eugene OR
Posts: 1,415
Rep Power: 92
thesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond repute
Send a message via MSN to thesk8nmidget
thesk8nmidget thesk8nmidget is offline
Class 3R Laser
thesk8nmidget's Avatar
 
Join Date: Jul 2008
Location: Eugene OR
Posts: 1,415
Rep Power: 92
thesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond repute
Send a message via MSN to thesk8nmidget
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by IgorT
Oh crap!

Well, the climbing power could be the cause of death.. I was expecting 160-170mW, not 191mW, which translates to ~245mW raw output (guesstimated). But the question is, why did the power climb? What driver did you use for this test? How sure are you of the stability of current?

Usually, when i saw PHRs climb in power, it was always temperature related. It doesn't have to get noticably warm or even hot for this to happen. The difference between 20 and 24C could cause a 10mW climb on the weird diodes, that climb with temperature. If i let them run till they reached 25C or if i put them in the pocket till they reached 25C, the results were the same.

Several experts speculated, it could be a mirror alignment thing, because the actual efficiency of the diode can not climb with heat.


But 90 minutes is not very encouraging. *:-/

I sure hope not all of them climb with heat.

well im using a flexmod1 driver from drlava.

im not sure how efficient it is compared to other drivers but it is made for projectors which require a pretty efficient power for color mixing.

this was ran at a little over 9 volts and the analog modulation was ran with my 5 volt power supply. the voltage on these are very efficient.


maybe i will hook up one of my others at 180ma and see how long it lasts.

but for now i need to clean the house and clean my mess.

im realy looking forward to other peoples tests.


calling dave calling dave... did i read that you hooked one up and you were letting it sit?

or did i miss read? if so what current and whats the status?
__________________
-Josh
thesk8nmidget is offline   Reply With Quote
Old 11-01-2008, 07:50 PM #602
robjdixon's Avatar
Class 3R Laser
 
Join Date: Feb 2008
Location: Norfolk, Uk
Posts: 2,364
Rep Power: 149
robjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond repute
robjdixon robjdixon is offline
Class 3R Laser
robjdixon's Avatar
 
Join Date: Feb 2008
Location: Norfolk, Uk
Posts: 2,364
Rep Power: 149
robjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond reputerobjdixon has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by styropyro
I just got all of the diodes out of their heatsinks, the blu was a little tricky but I got through it. What's left of the sled is a torn mess. ;D I sawed my way through everything so it looks like crap, but it doesn't really matter because it is going to be burned anyway. There are a ton of nifty little optics in this thing, I lost one of the beefier ones because it flew across my garage at high speeds when I clipped it out of its heatsink looking thing. :P I wish I could scrape up enough cash for another one of these sleds. :
Are they the same material as the Phr-803ts then?
__________________
Bender is back!
robjdixon is offline   Reply With Quote
Old 11-01-2008, 07:51 PM #603
thesk8nmidget's Avatar
Class 3R Laser
 
Join Date: Jul 2008
Location: Eugene OR
Posts: 1,415
Rep Power: 92
thesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond repute
Send a message via MSN to thesk8nmidget
thesk8nmidget thesk8nmidget is offline
Class 3R Laser
thesk8nmidget's Avatar
 
Join Date: Jul 2008
Location: Eugene OR
Posts: 1,415
Rep Power: 92
thesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond reputethesk8nmidget has a reputation beyond repute
Send a message via MSN to thesk8nmidget
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by rkcstr
I was able to get my diode out pretty simply. *First I removed the strange glass lens thing in front the diode, then I clipped the small tabs behind the back of the diode, then I took the small brass fitting I typically use for removing a diode from Aixiz modules and it fit right in the front of the heatsink piece. *Then, I used the module's focus ring behind the diode and used a vise to press the whole assembly, pushing the diode out of the heatsink. *It requires VERY little movement, so don't press too far or you'll smash and possibly break the diode pins, unless you have a deeper part behind the diode.

All and all, though it sounds complicated, it was much simpler than trying to cut the heatsink apart and probably safer for the diode since those vibrations may not be good for the diode.
that does sound easy enough. i need to find something like your brass fitting
__________________
-Josh
thesk8nmidget is offline   Reply With Quote
Old 11-01-2008, 07:55 PM #604
rkcstr's Avatar
Class 3R Laser
 
Join Date: Dec 2007
Posts: 1,368
Rep Power: 142
rkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond repute
rkcstr rkcstr is offline
Class 3R Laser
rkcstr's Avatar
 
Join Date: Dec 2007
Posts: 1,368
Rep Power: 142
rkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

I got mine from from Lowe's... 2 for $1 * *You just have to grind the inner diameter a little bigger and the outer diameter some as well. *Not too hard with a small round file or I use a Dremel with a small cylindrical grinding stone.

Here's a topic I started way long ago about it:
http://www.laserpointerforums.com/fo...1199774489/0#0
__________________
Laser drivers and Test Loads - rkcstr.com

Enter discount code "LPF" during checkout to save 10% off of the regular prices!
rkcstr is offline   Reply With Quote
Old 11-01-2008, 07:59 PM #605
styropyro's Avatar
Class 4 Laser
 
Join Date: Jun 2007
Location: Carbondale, IL
Posts: 5,259
Rep Power: 2895
styropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond repute
styropyro styropyro is offline
Class 4 Laser
styropyro's Avatar
 
Join Date: Jun 2007
Location: Carbondale, IL
Posts: 5,259
Rep Power: 2895
styropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond reputestyropyro has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by robjdixon
[quote author=styropyro link=1223438970/580#598 date=1225568083]I just got all of the diodes out of their heatsinks, the blu was a little tricky but I got through it. What's left of the sled is a torn mess. ;D I sawed my way through everything so it looks like crap, but it doesn't really matter because it is going to be burned anyway. There are a ton of nifty little optics in this thing, I lost one of the beefier ones because it flew across my garage at high speeds when I clipped it out of its heatsink looking thing. :P I wish I could scrape up enough cash for another one of these sleds. :
Are they the same material as the Phr-803ts then?[/quote]
I thought they were, I just tried to light one and it just melted down really easily without burning up. By the way it looked while it was molten I'm going to guess it is zinc. Now I have a little 6x sled ingot. ;D
__________________

Always protect your seeing balls!
styropyro is offline   Reply With Quote
Old 11-01-2008, 08:03 PM #606
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

I mean, the reason constant current is normaly a very safe way of powering diodes is preciselly because their power drops, as they heat up. Provided, the heatsinking is good, the diode won't overheat, but it will warm up slightly, the power will drop a little bit, and the stress on the die will be lower - it protects itself..

If you cool it to a lower temperature, than when you set the current, the power will be higher, and the stress will increase.


But if the power climbs with heat, the diode is more and more stressed, the longer it is on, and it can result in COD. A diode like this could actually be saved by a duty cycle. But since only a small temperature change is required to increase the power so much, simply carrying it in your pocket and then using it could bring it to a power level, that would kill it..

When i saw a PHR shoot up from 155mW to 178mW, i turned it off immediatelly, so that it would not commit COD. Strangelly enough that PHR later stabilised at 164mW and still lives.. But such climbing is really not safe.

A diode that climbs in heat would require a constant power driver, which would lower the current appropriatelly. But we don't have such drivers, and these diodes don't have a photo diode inside anyway....


With PHRs it was rare, so i really hope it's equally rare with these. But we alreay have two reports...
__________________
Signature temporarily out of order...
IgorT is offline   Reply With Quote
Old 11-01-2008, 08:14 PM #607
rkcstr's Avatar
Class 3R Laser
 
Join Date: Dec 2007
Posts: 1,368
Rep Power: 142
rkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond repute
rkcstr rkcstr is offline
Class 3R Laser
rkcstr's Avatar
 
Join Date: Dec 2007
Posts: 1,368
Rep Power: 142
rkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond reputerkcstr has a reputation beyond repute
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

I did notice that the power output tended to creep up with time when I was doing my measurements. *I tried to measure until it was somewhat stable at a value, but in the short runs I tested (like <60s), it didn't really seem to stabilize at the higher currents, but the rate of increase would slow. *Also, as I noted for my measurements, the voltage tended to do the same thing in the opposite direction. *At the high values like 200mA, the voltage was around 6V, but it would start at like >6.1V, then quickly drop (in about 2 seconds) to close to 6V, then it would continue to slowly drop over time, and I saw it continue as low as about 5.8V. *From just short term runs, around a minute or so, I could see around a 0.2 to 0.3V drop with time, but I just reported the initial "close to stable" voltage since I wasn't sure it was just due to temperature since it was only in an Aixiz module.
__________________
Laser drivers and Test Loads - rkcstr.com

Enter discount code "LPF" during checkout to save 10% off of the regular prices!
rkcstr is offline   Reply With Quote
Old 11-01-2008, 08:19 PM #608
IgorT's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
IgorT IgorT is offline
Class 3B Laser
IgorT's Avatar
 
Join Date: Oct 2007
Location: Slovenia, EU
Posts: 4,177
Rep Power: 55
IgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond reputeIgorT has a reputation beyond repute
Send a message via Skype™ to IgorT
Default Re: 6x Blu-ray SLEDS GB! THEY ARE GOING FAST!

Quote:
Originally Posted by thesk8nmidget
maybe i will hook up one of my others at 180ma and see how long it lasts.
Yeah.. But you should be aiming at a power, more than a current. They can survive a certain max power, not a max current.

So if you set it to a certain current, and the power is higher, than expected, it should be lowered.
And if you see the power climb above the desired power, turn it off and lower the current, try to find one, where the power doesn't climb (if it exists).

I wasn't expecting these to survive 191mW after AixiZ acrylics. I would like 160-170mW, and i'll be happy. That would bring these close enough to 200mW with glass optics.



One other case, where the power can change drastically with small changes in temperature, is when the diode is inside a kink. Sometimes they start mode hopping in kinks (did you see any spot distortion?)..

It would definitelly be very useful, to make a detailed graph of each, before deciding on the current to set it to.
__________________
Signature temporarily out of order...
IgorT 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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f55/ggw-h20l-6x-sled-gb-epic-gb-thread-lawl-39898.html
Posted By For Type Date
PHR - Hobbi TV This thread Refback 02-06-2013 02:19 AM










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 04:31 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