Mike wrote:
> 
> I have a book that talks about diffraction gratings.  Says a typical one
> has 14,000 to 15,000 rulings per inch and that for maximum efficiency
> the seperation of them should be on the order of 1/50,000 inch, or about
> the wavelength of light.
> 
> I would think aliasing would be a problem. ;)
> 
> -Mike

Wouldn't that depend on how far the camera were placed from the surface ?

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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