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Gabriel,
An excellent point! I'll pass that along to the inquiring researcher.

Regards,
~Gregg


On Thu, Nov 14, 2013 at 12:15 PM, Zac Arrac Atelaz <[log in to unmask]>wrote:

> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> *****
>
> Gregg:
>
> You should be very cautious here, you can have some stuff that MIGHT have
> SOME Little shelf life, but, your dealer warranty is going to die on the
> shelf too. So my humble opinión is make a full stop when the laser dies and
> wait for it as long as it takes, that is way better than spending twice the
> money, because the fail took longer than planned and the spare part die and
> its warranty too. Just my two cents.
>
> Regards and Hapiness for you all
>
> Gabriel OH
>
> > Date: Thu, 14 Nov 2013 11:47:11 -0500
> > From: [log in to unmask]
> > Subject: Re: Shelf life of lasers and refurbishing
> > To: [log in to unmask]
> >
> > *****
> > To join, leave or search the confocal microscopy listserv, go to:
> > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> > *****
> >
> >
> >  I would expect the replacement to be there in 2-3 days but this is with
> a service contract!  My knowledge regarding degrading is based on Argon Ion
> lasers, with these the tube pressure increases when they are not used and
> then the laser does not start any more, so they don't last on the shelf.
> 561 lasers are DPSS and not simple diodes, but i would not expect them to
> degrade over time, but they are more expensive than diodes, so it is a lot
> of money standing around.
> >
> > best wishes
> >
> > Andreas
> >
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: Gregg Sobocinski <[log in to unmask]>
> > To: CONFOCALMICROSCOPY <[log in to unmask]>
> > Sent: Wed, 13 Nov 2013 18:37
> > Subject: Shelf life of lasers and refurbishing
> >
> >
> > *****
> > To join, leave or search the confocal microscopy listserv, go to:
> > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> > *****
> >
> > Our 561nm diode laser went bad on a confocal system, and it has taken 2
> > months to obtain a new one. I pose four lines of questioning to the list:
> >
> > 1) Have people tried refurbishing old lasers? How did they perform?
> > 2) Do you believe that refurbished lasers are a good value at half the
> > price of new replacement?
> > 3) Do lasers degrade while sitting unused on a shelf? (Should we have a
> > refurbished laser on hand for next time, or should we wait?)
> > 4) Is two months typical for ordering a laser without a service contract?
> > Are lasers in that short of supply?
> >
> > Thanks in advance to all responders.
> > ~Gregg
> > --
> > *Gregg Sobocinski*
> > Microscope Imaging Specialist
> > University of Michigan
> > Ann Arbor, Michigan, USA
> >
> >
>