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 > Buy, Sell, & Trade



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



Reply
 
LinkBack Thread Tools Display Modes
Old 07-07-2007, 08:40 PM #33
Kenom's Avatar
Class 4 Laser
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Kenom Kenom is offline
Class 4 Laser
Kenom's Avatar
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Default Re: Group buy for 16X dvd burner diodes !

I'm pretty sure that 350ma will be a pretty quick death to these diode's even with good heatsinking. *I think it's just too much current. *I want 300ma MAX. I should email merideth and ask them what the output voltage is on that thing. I'm assuming 3.5V. which again will be a bit high but that can be solved easily with a different resistor. It comes unassembled and wouldn't be that hard to change a resistor.


Kenom is offline   Reply With Quote







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







Old 07-07-2007, 08:41 PM #34
kingzilla
Guest
 
Posts: n/a
kingzilla
Guest
 
Posts: n/a
Default Re: Group buy for 16X dvd burner diodes !

Could you just use a single resistor like what I have always used for L.E.D.s or will that kill the diode? OR does the driver board do more than just limit current?
  Reply With Quote
Old 07-07-2007, 08:42 PM #35
Member
 
Join Date: Jul 2007
Posts: 36
Rep Power: 0
Revolvr is on a distinguished road
Revolvr Revolvr is offline
Member
 
Join Date: Jul 2007
Posts: 36
Rep Power: 0
Revolvr is on a distinguished road
Default Re: Group buy for 16X dvd burner diodes !

The output voltage doesn't really matter much as long as it is above the forward voltage drop of the LD, which is 2.5V. The driver outputs a constant current which is the important thing. They do specify the input voltage which tells you how many batteries you'll want.

-- Rev
Revolvr is offline   Reply With Quote
Old 07-07-2007, 08:42 PM #36
Kenom's Avatar
Class 4 Laser
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Kenom Kenom is offline
Class 4 Laser
Kenom's Avatar
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Default Re: Group buy for 16X dvd burner diodes !

the driver board does indeed do more than just limit current. IT makes it STABLE CURRENT. no peaks or spikes.
Kenom is offline   Reply With Quote
Old 07-07-2007, 08:45 PM #37
Kenom's Avatar
Class 4 Laser
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Kenom Kenom is offline
Class 4 Laser
Kenom's Avatar
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Default Re: Group buy for 16X dvd burner diodes !

If the second driver board will work with a few simple modifications I might pop for em and then sell the extra's I've got at a reasonable price. GB if you will.
Kenom is offline   Reply With Quote
Old 07-07-2007, 09:54 PM #38
Gazoo's Avatar
Class 3B Laser
 
Join Date: Jun 2007
Location: Dallas Tx
Posts: 3,199
Rep Power: 180
Gazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond repute
Gazoo Gazoo is offline
Class 3B Laser
Gazoo's Avatar
 
Join Date: Jun 2007
Location: Dallas Tx
Posts: 3,199
Rep Power: 180
Gazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond repute
Default Re: Group buy for 16X dvd burner diodes !

Remember Roithner? They make driver boards.

http://www.roithner-laser.com/Drivers.htm

The EU-38 driver board I think would be the best option, and according to their price list costs $15.88 USD for an order of 1-49.
Gazoo is offline   Reply With Quote
Old 07-07-2007, 09:56 PM #39
SenKat
Guest
 
Posts: n/a
SenKat
Guest
 
Posts: n/a
Default Re: Group buy for 16X dvd burner diodes !

I do not believe a driver board is needed. I am running hte 12x version in a Dorcy Jr host bare, and it is pumping out 160mw easy. It even burns light colored oak on my desk !!! So - Once these little suckers come in, it will be a matter of adding a tiny cap and resistor combo to the existing circuit to get it all up and running smoothly ! I hope that made sense. I will post the values of each item as needed.
  Reply With Quote
Old 07-07-2007, 10:06 PM #40
Gazoo's Avatar
Class 3B Laser
 
Join Date: Jun 2007
Location: Dallas Tx
Posts: 3,199
Rep Power: 180
Gazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond repute
Gazoo Gazoo is offline
Class 3B Laser
Gazoo's Avatar
 
Join Date: Jun 2007
Location: Dallas Tx
Posts: 3,199
Rep Power: 180
Gazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond repute
Default Re: Group buy for 16X dvd burner diodes !

Quote:
Originally Posted by Daedal
[quote author=Kenom link=1183788027/15#29 date=1183840224]Merideth does sell a driver board that will work for this! problem is it's expensive as HELL! $49.00 it will fit into a pen style laser barrel.
http://www.mi-lasers.com/cgi-bin/sho...rchResult.html

I'm also looking at a driver board for a LED flashlight that might work with a little modification.
http://dealextreme.com/details.dx/sku.3160

Since I am not that electrically knowledgable I'm having to ask other's if the driver boards I've mentioned will be sufficient. I will let everyone know when I find out more.

The first board doesn't tell you what the output voltage is, the second board I think would be great... Especially the way they have it pictured with nothing on there except for the ramp chip and the diode :P I was thinking of working on one these... I'll have to do it sometime considering I have a few lying around gutted from other flashlights

--DDL[/quote]

Hello Daedal,
I have learned to think in terms of current when playing with diodes. Voltage doesn't matter to me and I hardly even look to see how much voltage I am applying. I always monitor current when playing around.

What Kenom is saying about driver boards providing stable current to the diode is true. However, one can get by using the proper resistor ( we are on exactly the same page with that one) and a capacitor.

I have been using a driver board on my home made laser and it is still running the same as the day I put it together. The driver I am using isn't adjustable. However with 4 nimh batteries it provides 240ma of current to the diode. I guess my point is by using a driver board, the diode is likely to last much longer, at least this has been my experience.


Gazoo is offline   Reply With Quote
Old 07-07-2007, 10:37 PM #41
Class 3R Laser
 
Join Date: May 2007
Posts: 2,277
Rep Power: 175
Daedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond repute
Daedal Daedal is offline
Class 3R Laser
 
Join Date: May 2007
Posts: 2,277
Rep Power: 175
Daedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond reputeDaedal has a reputation beyond repute
Default Re: Group buy for 16X dvd burner diodes !

Quote:
Originally Posted by Gazoo
[quote author=Daedal link=1183788027/30#31 date=1183840655][quote author=Kenom link=1183788027/15#29 date=1183840224]Merideth does sell a driver board that will work for this! problem is it's expensive as HELL! $49.00 it will fit into a pen style laser barrel.
http://www.mi-lasers.com/cgi-bin/sho...rchResult.html

I'm also looking at a driver board for a LED flashlight that might work with a little modification.
http://dealextreme.com/details.dx/sku.3160

Since I am not that electrically knowledgable I'm having to ask other's if the driver boards I've mentioned will be sufficient. I will let everyone know when I find out more.

The first board doesn't tell you what the output voltage is, the second board I think would be great... Especially the way they have it pictured with nothing on there except for the ramp chip and the diode :P I was thinking of working on one these... I'll have to do it sometime considering I have a few lying around gutted from other flashlights

--DDL[/quote]

Hello Daedal,
I have learned to think in terms of current when playing with diodes. Voltage doesn't matter to me and I hardly even look to see how much voltage I am applying. I always monitor current when playing around.

What Kenom is saying about driver boards providing stable current to the diode is true. However, one can get by using the proper resistor ( we are on exactly the same page with that one) and a capacitor.

I have been using a driver board on my home made laser and it is still running the same as the day I put it together. The driver I am using isn't adjustable. However with 4 nimh batteries it provides 240ma of current to the diode. I guess my point is by using a driver board, the diode is likely to last much longer, at least this has been my experience.


[/quote]

I definitely agree with you... The only thing I am thinking about here is wattage... Diode output is measured in mW... and that is Current * Voltage... 1W is 3V * .333 Amperes. If the diode is fine running at 2.5V at 300mA then that's 750mW, putting out close to 250mW and giving off 500mW as heat dissipation. If you power it at 6V at 300mA then it's putting out a steady 250mW as light and not having a problem... but all that excess is being given off as heat thus requiring more cooling. At this point it would be putting out 1550mW of heat! If the batteries supply 1.2V each then it's a bit less at 1120mW of heat... That is still more than double what the diode was made to give off... That can be limited using a voltage splitting resistor using the right values. The resistor would be giving off some heat though... which would or would not be as much as the diode depending on the resistor itself...

Again... the diode is fine giving off that much heat as long as it is running with something to give the heat off to (like an AixiZ module with some thermal epoxy) and a reasonable duty cycle. It would definitely not be any less than a minute or even more...

Hope that helps;
DDL
__________________
____________________________________________
Daedal Lasers... NEW LOWER PRICES... LPF Coupon = LPF10OFF
________________________________
CLICK ME -- LASORB is now available for immediate purchase
________________________________
Daedal is offline   Reply With Quote
Old 07-07-2007, 10:48 PM #42
Class 3R Laser
 
Join Date: Oct 2006
Posts: 2,032
Rep Power: 31
pseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud of
pseudonomen137 pseudonomen137 is offline
Class 3R Laser
 
Join Date: Oct 2006
Posts: 2,032
Rep Power: 31
pseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud ofpseudonomen137 has much to be proud of
Default Re: Group buy for 16X dvd burner diodes !

Not that you can't use voltage or input wattage to get a good idea of the power, but just FYI in figuring out the safe operating point of a diode, you're supposed to keep the current in spec with the datasheets. Input power and voltage may be estimated on a datasheet (after all, they're all roughly related), but its technically the current you need to tune your driver to.
pseudonomen137 is offline   Reply With Quote
Old 07-08-2007, 05:12 AM #43
flogged's Avatar
Class 2M Laser
 
Join Date: Jul 2007
Posts: 530
Rep Power: 47
flogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond repute
flogged flogged is offline
Class 2M Laser
flogged's Avatar
 
Join Date: Jul 2007
Posts: 530
Rep Power: 47
flogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond reputeflogged has a reputation beyond repute
Default Re: Group buy for 16X dvd burner diodes !

Wow, those do look like nice LDs. Phew, I was about to order a CNI greenie and now I'm really tempted by these laser rocks. I've got an unused Meredith collimator assembly and mounting block though I'd need to get the 5.6 mm can (from 9 mm) thingie to work with this diode.

250 mW tho .. !!. Quarter watt of solid red power has a nice ring to it. And you could drop it down to a 'mere' 200 mW and with some luck get very good life from the part.

I also got this off the Sony link:
Quote:
Despite this being a difficult device to design, we only had a short development period and the road to commercial release was perilous. However, thanks to much assistance from the staff and our cohesion as a group, we succeed in making it safely to commercial release. Our next step is to proceed with development aimed at even higher output to support two-layer discs.
YES!!! More powerful diodes on the way!

I'm tentatively down for 5 of these - will let you know on Monday or Tuesday for certain.
flogged is offline   Reply With Quote
Old 07-08-2007, 05:16 AM #44
SenKat
Guest
 
Posts: n/a
SenKat
Guest
 
Posts: n/a
Default Re: Group buy for 16X dvd burner diodes !

So far, 38 have been bought and paid for !
  Reply With Quote
Old 07-08-2007, 09:16 AM #45
Class 2M Laser
 
Join Date: Feb 2007
Posts: 609
Rep Power: 23
stevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud of
stevetexas stevetexas is offline
Class 2M Laser
 
Join Date: Feb 2007
Posts: 609
Rep Power: 23
stevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud ofstevetexas has much to be proud of
Default Re: Group buy for 16X dvd burner diodes !

http://www.dealextreme.com/details.dx/sku.3160

any reason you couldn't use one of these and add an extra resistor to drop the current?
stevetexas is offline   Reply With Quote
Old 07-08-2007, 01:00 PM #46
SenKat
Guest
 
Posts: n/a
SenKat
Guest
 
Posts: n/a
Default Re: Group buy for 16X dvd burner diodes !

I saw a current number, but not a voltage number - any idea how many volts they put out ?
  Reply With Quote
Old 07-08-2007, 01:26 PM #47
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Comidt Comidt is offline
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Default Re: Group buy for 16X dvd burner diodes !

Would you ship to South Africa?
and how much would that cost extra?
Jonno
Comidt is offline   Reply With Quote
Old 07-08-2007, 01:43 PM #48
SenKat
Guest
 
Posts: n/a
SenKat
Guest
 
Posts: n/a
Default Re: Group buy for 16X dvd burner diodes !

Well, I am going to use Airmail for the overseas folks - and if it is TOO much, I wil lsend emails out begging for additional funds - I do not see it as costing too much more in all honesty - I Know that global priority runs close to $20 or more, so that is why I cut costs to include airmail in the price. Honestly, I really do not think it will be a problem - but if it does become a problem after I email asking for funds - just mark "return to sender" on the package when it is received, and I will refund the whole amount ! I know that was a long winded answer :P Sorry 'bout that ! ;D
  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 12:24 PM.


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