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 > Experiments & Modifications



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



Reply
 
LinkBack Thread Tools Display Modes
Old 02-25-2008, 10:58 AM #1
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
dar303 dar303 is offline
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
Default Dealextreme 35mW module measurement

http://www.dealextreme.com/details.dx/sku.10004
I get 69mW at 360mA measured with a Coherent theremal pile sensorhead and driven by a D4drive.
I see no abnormal IR emission using a sony DV cam with nightvision.

Has anybody else actually measured this one or experimented with it, I wonder how high I can push it?

And finally for the "ok, but does it BUUUURN"-crowd: Yes, it stings skin!



dar303 is offline   Reply With Quote







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







Old 02-25-2008, 11:37 PM #2
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Dealextreme 35mW module measurement

I've read people pushing it as hard as 100 mW output here, but i'm not sure how long it will survive that, if at all.
Benm is online now   Reply With Quote
Old 02-26-2008, 01:58 PM #3
knimrod's Avatar
Class 2 Laser
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
knimrod knimrod is offline
Class 2 Laser
knimrod's Avatar
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
Default Re: Dealextreme 35mW module measurement

A little more info:

http://www.laserpointerforums.com/fo...num=1194710960

http://www.laserpointerforums.com/fo...num=1200717134
__________________
I never give them hell. I just tell the truth and they think it's hell. - Harry S. Truman
knimrod is offline   Reply With Quote
Old 02-26-2008, 03:41 PM #4
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
dar303 dar303 is offline
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
Default Re: Dealextreme 35mW module measurement

Thanks knimrod! I'll try to push it a little more when I have glued the cable properly to the metal casing.
dar303 is offline   Reply With Quote
Old 02-26-2008, 04:55 PM #5
knimrod's Avatar
Class 2 Laser
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
knimrod knimrod is offline
Class 2 Laser
knimrod's Avatar
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
Default Re: Dealextreme 35mW module measurement

Quote:
Originally Posted by dar303
Thanks knimrod! I'll try to push it a little more when I have glued the cable properly to the metal casing.

Be careful and proceed at your own risk. I originally pushed the power way up there because of a review that claimed a larger MCA and diode. After my post mortem, I didn't find this to be the case. Pushing the current up into the 400mA area is not going to be without some considerable risk IMO.
__________________
I never give them hell. I just tell the truth and they think it's hell. - Harry S. Truman
knimrod is offline   Reply With Quote
Old 02-26-2008, 08:22 PM #6
MarioMaster's Avatar
Class 3B Laser
 
Join Date: Jul 2007
Location: Allentown, PA
Posts: 3,621
Rep Power: 346
MarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond repute
Send a message via AIM to MarioMaster
MarioMaster MarioMaster is offline
Class 3B Laser
MarioMaster's Avatar
 
Join Date: Jul 2007
Location: Allentown, PA
Posts: 3,621
Rep Power: 346
MarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond repute
Send a message via AIM to MarioMaster
Default Re: Dealextreme 35mW module measurement

but what they do have is much better cooling versus a handheld pointer, but yes i'm not too sure how good it is for running all the time at 100mW
__________________
ILT 5500KR krypton only air cooled ion 100mW 647.1nm | ILT 5500AR argon only air cooled ion >300mW multiline
Omnichrome 643 air cooled Ar/Kr ion 10mW 676.4nm 647.1nm 568.2nm 488nm 476.2nm (high hours)
Spectra Physics 127 >30mW 632.8nm HeNe | Uniphase 1.5mW 543.5nm GreeNe
Coherent Innova 90 argon ion water cooled ??W (got plasma, alignment in progress)
Coherent 60W 830nm water cooled diode brick | Shenhui Laser 40W 10600nm water cooled CO2

(9:03:50 PM) Picasso: the best guys i saw ever at burning man was two dudes dressed as all green army men shooting pants at naked guys
MarioMaster is offline   Reply With Quote
Old 02-26-2008, 09:08 PM #7
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
dar303 dar303 is offline
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
Default Re: Dealextreme 35mW module measurement

I'll TEC it just to be safe(er) then.
dar303 is offline   Reply With Quote
Old 02-26-2008, 11:52 PM #8
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Dealextreme 35mW module measurement

I doubt additional cooling will do much good.. i'm not sure what you'll blow up first by overdriving it, but chances are the failure mode is optical - either the pump diode or one of the coatings on the crystals, or the glue in between. In those cases a few degrees extra cooling won't give you much extra room to play with.
Benm is online now   Reply With Quote
Old 02-27-2008, 07:03 AM #9
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
dar303 dar303 is offline
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
Default Re: Dealextreme 35mW module measurement

Your propably right, the optical components are not built to take that kind of powers. Do anybody know what max current that type of IR-diode can safely handle?
Maybe a realistic max power would be 70 or 80mW for this module, that isn't bad either!
dar303 is offline   Reply With Quote
Old 02-27-2008, 11:34 AM #10
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Dealextreme 35mW module measurement

It's hard to tell without having the diode specs. The pump diode is likely a multimode with a relatively large emitting area though, which makes it less sensitive to sudden death from COD than the red diodes from dvd burners and such. It'll still degrade from too much currents like LED's do, but i guess the life-vs-power graph isn't that steep.

The crystal assembly is likely to be the limiting factor on a short timescale, but unfortunately those have larger tolerances between individual units.
Benm is online now   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 01:43 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