O.K. for SEM, what's CLSM?

[T3D <BD3D@xxxxxxxxxx>]

I have enjoyed the education on SEM stereo, although it's way beyond my level.
My question involves an equally foreign (to me) method of stereo micro-
scopy.

My real job is in the lubricant formulation industry, specifically in 
metalworking fluids.  These are the fluids that are pumped through the 
cutting zone during the machining of metals to provide long tool life,  
fine finishes, etc.  At an industrial exhibition a few years ago, Shell 
Chemical Company was advertising their newest additive by giving away 
a pair of 8x10 anaglyphs showing a highly magnified view of a freshly-
machined surface, one using their additive and one much rougher one that 
had been machined using "Brand X".  There is a short caption on each 
identifying it as a CLSM stereo image.  The stereo effect is good, although 
Shell had the colors printed opposite the normal left/right.  Their glasses 
were correspondingly printed, so it worked for them.

Anyhow, what is a CLSM and why might they have used this?  Depth of field probably
was not a concern, as they were shooting (?) perpendicular to a flat surface.

Best regards,
Bill Davis


------------------------------