Natural Science Forum / Physics / Optics / June 2008

Hi, could somebody help me to get schematics and/or service manual for
a laserdrive ps9600 power supply?
This power supply is discontinued but I need to repair 3 or 4 of it. I
´m leaving in Argentina and is very dificult and expensive (because

I'm new here with a microscope Bresser Biolux A - 20 X 1280.
I wanted to see micro-organism for example in rotten water as I did when I
was young, with a cheaper machine.
I took some forgotten, dirty water in a square nearby, but the only thing I

I'm new here, as this is my first post. I post regularly at the laser
pointer forum, but there seems to be much more knowledge on gas lasers
here.
Anyway, I was lucky enough to score a C/U 2201-40 multi-line argon

Can anyone identify a make and model for this pickup and/or player or burner
this may have originated?
The only markings on the PCB are "BD/HDP" and rev.
http://repairfaq.cis.upenn.edu/Misc/hddvd1.jpg

Thanks, Sam Goldwasser for re-aligning my ailing Argon Laser !  You
diagnosed, adjusted, aligned, and generally did  the magic you do so
well !  To anyone reading this, you should know that Sam is a real
person - he is super nice, patient beyond belief, and knowledgeable

Feather tracks in lens coatings - any preventative?
Slightly off topic as this lens coating is on a camera lens, and I haven't yet
seen such damage on any of my own microscope lenses.  
Under the microscope these tracks look like a powdered hoare frost in the

I wonder why there is not much more integrating sphere in spectroscopy
measurements like diffuse reflectance (in the near infrared for example)
or scattering (like Raman scattering). Aren' this devices thebest to
collect much of the liht ?

What kind of lasers are used for laser cuting, i mean the kind of laser
cutters
for small jobs and/or (well heeled) hobbyists?
CO2? Solid State but what kind?

I in no way have the intension of spamming this group.  I've just come
to make a point here.
As we all know eBay is changing alot, most people are begining to get
annoyed and just frustrated at eBay with their changes, fee's and

(This (inexpensive) pair of binoculars (that's redundant, no?)
      bi (n) oculars
already says "two", doesn't it?  So why "pair"?)
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Say I wanted to build a laser that produces a wavelength of 1064nm.
Naturally I choose Nd:YAG because of its flouresence at that
wavelength.  What factors go into deciding the length of the cavity
and what is the optimum lenght?   I understand that a cavity can

I'm building a spectroscope, the plans call for a grating with 13,400 lines
per inch.
I see Edmunds has grating sheets with 25,400 lines per inch.
How will this affect the spectroscope?

Is it possible to build an x-ray laser that emits photons that are
10^-15 meters in wavelength?
The link below states that 10^-15 m is the shortest known wavelength of
EM radiation.

In the Name of Allâh, the Most Gracious, the Most Merciful.
Assalam-o-Alaikum,
(Peace and blessings of Allâh  be upon  all seekers of Truth.)
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