Old 07-18-2008, 01:35 AM #1
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Default bad idea to leave lasers out in the sun?

I accidentally left my >35 mW green laser in the car for about an hour and it became somewhat warm to the touch. It wasn't as warm as if it had been on for a few minutes, but it was warm nevertheless.

Is it a bad idea to leave lasers out in the sun in general?

I know it's generally not a good habit to leave things lying out in the sun. ;D


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Old 07-18-2008, 03:09 AM #2
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Default Re: bad idea to leave lasers out in the sun?

If you can destroy a VHS cassette worth 50 cents by leaving it in your car I'm sure a laser worth 100 bucks wouldnt be much trouble
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Old 07-18-2008, 04:41 AM #3
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Default Re: bad idea to leave lasers out in the sun?

As long as the temperature inside the car doesn't exceed the safe operating temperature of the laser diode you should be fine. Exceed it and your laser becomes a paperweight. Read this topic for more info.
http://www.laserpointerforums.com/fo...1216237056/8#8
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Old 07-18-2008, 07:39 AM #4
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Default Re: bad idea to leave lasers out in the sun?

It would have to be pretty damn hot. Remember, when you laser is warm on the outside from normal use, that's just the radiating heat that you're feeling. The diode itself is much hotter. Whereas when the laser is hot from external heat, the inside will be the same temp or cooler. As a precautionary measure, I would probably let it cool down before heavy use but unless your car is like 140F inside I think you'll be alright.

But, obviously, not leaving it in the car would probably be the best option *8-)
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Old 07-18-2008, 08:54 AM #5
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Default Re: bad idea to leave lasers out in the sun?

yea i think it was around 110 outside my car when i opened the door wow smoking i think it made the board flex just enough to undo my soldering job this time it has jb weld re-inforced and a large chunk of solder
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Old 07-18-2008, 09:07 AM #6
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Default Re: bad idea to leave lasers out in the sun?

Oh... man...

I just had a fully sick idea...

SOLAR POWERED LASER!!!! ;D ;D ;D
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Old 07-18-2008, 09:39 AM #7
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Default Re: bad idea to leave lasers out in the sun?

Quote:
Originally Posted by Murudai
Oh... man...

I just had a fully sick idea...

SOLAR POWERED LASER!!!! *;D ;D ;D
I was thinking of that on monday, Im doing some sort of solar power measurement stuff for math in school and im like "oh hello there I could probably use this panel for mah laser"
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Old 07-18-2008, 11:32 PM #8
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Default Re: bad idea to leave lasers out in the sun?

Quote:
Originally Posted by GooeyGus
It would have to be pretty damn hot. Remember, when you laser is warm on the outside from normal use, that's just the radiating heat that you're feeling. The diode itself is much hotter. Whereas when the laser is hot from external heat, the inside will be the same temp or cooler.
That makes sense.

Also, my laser was in its case, so I'm pretty sure no damage was done to it.

I know that it is also a bad idea to put lasers in freezers. However, does anyone know the "safe" temperature range for lasers?
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