Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

Do I need a heatsink

Joined
Aug 24, 2012
Messages
12
Likes
0
Points
0
Hello, do I need a heatsink for a 100mw 760nm Laser module (click here)? I found my interest in lasers recently, and now I am going to buy a burning laser (I now it's infrared). :thanks:
 
Last edited:

TheDukeAnumber1

Well-known member
Joined
Jun 7, 2012
Messages
2,064
Likes
221
Points
63
That an interesting choice, I like it. I know 100mW 532nm modules can be run for under a min without a heat sink. Although I'm not completely sure about infrared I'd say you can get away without a heat sink for short run times.

That being said I'd recommend using a heat sink and I think most here would aswell.
 

grainde

Well-known member
Joined
Jan 29, 2012
Messages
3,155
Likes
1,189
Points
113
Just be aware the beam may not appear all that bright, even though its putting out 100 mW....:beer:
 
Joined
Jan 13, 2010
Messages
2,531
Likes
196
Points
0
I wouldn't suggest hooking it up straight to batteries. The voltage might be correct and it may work but since diodes are current hungry devices. They will attempt to take as much current as they can from the batteries and though it MAY work. There's no telling how long it WILL work for. So just be aware that not having a heataink and driver is not a good idea and is suggested if you would like your diode to live for more than a few minutes.
 
Joined
Jan 13, 2010
Messages
2,531
Likes
196
Points
0
Then you should be fine. I didnt click the link. I just read the thread title :eek:pps: A 100mw doesn't produce a lot of heat but I would advise paying attention to how warm the module gets. For general pointing you shouldn't need a heat sink but if you plan to use it in some sort of application where the laser needs to be on for more than a minute or two I would find a way to heat sink it.
 

DTR

Well-known member
LPF Site Supporter
Joined
Jun 24, 2010
Messages
5,613
Likes
959
Points
113
I am just wondering what one does with a 100mW IR laser other than very specific scientific applications?:thinking:
 




Top