On Sat, Oct 2, 2010 at 1:32 PM, Przemek Klosowski <
przemek.klosow...@gmail.com> wrote:
> On Sat, Oct 2, 2010 at 12:28 PM, Jon Elson <el...@pico-systems.com> wrote:
>
> > It is fairly easy to open up a CD drive and clean the lens with alcohol
> > and a Q-tip, and then after the alcohol residue dries, wipe with a dry
> > Q-tip.
>
> I recommed another technique I used when I was younger and messed with
> lasers
> in the lab. Use optical lens paper (used to be available in camera
> stores, in little booklets)
> Drop a spot of cleanest alcohol (isopropyl is good, but be careful
> that it's pure and the kind with added glycerin;
> grain alcohol is fine too) in the middle of the paper. Lay the wet
> part flat on the lens and slide it off sideways.
> The wet part will clean the lens and then the dry part will dry it.
>
Yes; you reminded of the technique we used to clean optics in a PME
Lab in 1959-60. However lens paper was Military issue.
>
> Qtips, tissue paper, etc. have mineral particles in them as whiteners,
> etc, that could scratch the antireflective coating on the lens,
> so you want soft paper.
>
Thanks guys it looks like the Old Drive is going into forced retirement.
Don
>
>
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