RedForest UK
Flashlight Enthusiast
- Joined
- Nov 28, 2009
- Messages
- 1,365
I recently recieved the DX True 20mw green laser. It came on originally about half as bright as my 1mw ebay laser before dimming considerably more, i wasn't happy..
But here's the weird part, i played around with it for a while, with no effect. But then having left it for a while i started to notice every succesive time i turned it on it came on quite bright for slightly longer each time e.g. 1 second the first time before dimming, then 2 seconds etc. Anyway, the longer i left it the longer it came on for before dimming when i tested it.
Now, I'm no expert on lasers, but I had the idea that it might be working while cool before my hand warmed it up, this is now verified by me testing it outside in the cold where it performs much better than before. However still only roughly as bright as my 1mw laser.
The question is, seeing as I had thought that lasers were meant to perform poorly at low temperatures, why is does mine seem to do the exact opposite, and only work when it's cold?
EDIT: The light now seems also not to work when below a certain temperature as well and so has a pretty narrow window in which it will actually work, not simply when it is cold.
Thanks for any help.
But here's the weird part, i played around with it for a while, with no effect. But then having left it for a while i started to notice every succesive time i turned it on it came on quite bright for slightly longer each time e.g. 1 second the first time before dimming, then 2 seconds etc. Anyway, the longer i left it the longer it came on for before dimming when i tested it.
Now, I'm no expert on lasers, but I had the idea that it might be working while cool before my hand warmed it up, this is now verified by me testing it outside in the cold where it performs much better than before. However still only roughly as bright as my 1mw laser.
The question is, seeing as I had thought that lasers were meant to perform poorly at low temperatures, why is does mine seem to do the exact opposite, and only work when it's cold?
EDIT: The light now seems also not to work when below a certain temperature as well and so has a pretty narrow window in which it will actually work, not simply when it is cold.
Thanks for any help.
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