[Ronja] Make Magazine: hacking DVD-burner lasers - works for RONJA?

[Pavel Krejci]

1000hrs=41.7 days... this is what I'm talking about...
PK

Martin napsal(a):
> They seem to have a half-life of around 1000 hours if used at full 
> power. that only means, after 1000 hours you get half amount of light 
> power with same electrical power input.
> This is why all the laser circuits have automatic power adjustment.
> Also this means, after a certain amount of electrical power it will get 
> damaged because of excess heat.
> Also lasers have the nice attitude of immediate damage, when the 
> _optical_ power ecxeeds the limit.
> A monitor diode with APC is a _must_.
> So messing around with the LDs is fun, but also a very expensive hobby 
> if not done carefully.
> Care must be taken ragarding health of eyes and the LD-s.
> 
> bye, Martin
> 
> Pavel Krejci
> 
>     How about life of the laser?
>     DVD burner hardly operates 24/7...
>     Does anybody know how long can DVD laser shine continuously (providing
>     proper biasing and cooling)
> 
>     P.K.
> 
> 
> 
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