Martin,
Publicly, I can advise you as to a general direction. Privately (email me at labviewguru@yahoo.com) I can probably set you up with what you need.
Publicly: You are talking about doing a vision inspection system, I presume. Such a task as yours requires some serious equipment and software. I would recommend the following types of equipment:
Digital Camera, high resolution (NOT a Cohu! - very bad experience with the company and hardware). You will need a microscope to attach this to, or a microscopic lens/lens system. This is going to be pricey. You will need lighting, depending on your application, this could get expensive, but not as expensive as the lens by any means.
Once you have an image, then you will need software. IMAQ Vis
ion and Vision Builder are a must. You will need to then determine, from your requirements, what needs to be done.
Privately, I, through the company I am with now, am just finishing off a complex and unique vision application. Please contact me if you are interested in discussing the matter further. I apologize to the board for soliciting business here, but I cannot possibly suggest enough here to get you going with your application. It is very complex. If you don't have experience with this, I would strongly suggest working with a National Instruments Alliance Member to integrate your solution.
Thanks