Low powered LP (<5mw), not pulsed that can stay on 72 hours+

[Anonymous Coward]

Can any of you recommend a low powered laser pointer that can stay on for 72 hours straight (preferably battery powered)?
If I have to mod the laser pointer you recommend, please suggest how to mod it (extern psu, cooling, etc).

 

[paul1598419]

I'd recommend getting a fan cooled 532nm or other wavelength laser. These usually run off 12 volts which you can supply using a battery pack. They can generally run as long as the battery hasn't discharged. I have several I got awhile ago on eBay.

 

[Anonymous Coward]

I'd recommend getting a fan cooled 532nm or other wavelength laser. These usually run off 12 volts which you can supply using a battery pack. They can generally run as long as the battery hasn't discharged. I have several I got awhile ago on eBay.

Sorry, my knowledge of LPs is limited. The reason I asked, is that I have trouble finding the specific product, and verifying that it can stay on for 72+ hours.

Ie. what battery pack are you thinking about? Which LPs are compatible with the battery pack? Etc.

 

[paul1598419]

If you are wanting one of these little lab lasers like a 532nm one they most often run at 12 volts. That would take three Li ion batteries. The larger the better. That way they would run longer before discharge. I have one that does better than 200 mW. I think it is set to output 230 mW. You can certainly get ones that output far less and those need less power to run.

 

[Ricker]

What is the designs purpose? That may help us find something closer to what you're looking for.

Unless it's to keep Tom Cruise out of your vault, that mission would be impossible.

 

[atomd]

You can use any generic diode laser module. Search 650nm or 450nm in china. Sorry, can't post link