Mike says: "I have been using Zemax regularly for over 13 years. It is a powerful piece of software for the serious optical designer. The many controls and switches in the user-interface allow the behaviour of extremely complex optical systems to be modelled in great detail. At Opto-Mechanical Design, Zemax is the powerhouse behind the optical design and Autodesk Inventor provides the 3D modelling capability to design bespoke optical systems to match the exact needs of the customer. We have experience in Zemax-modelling of microscopes, spectrometers, interferometers, telescopes, White cells, ellipsometers and many other optical phenomena including rainbows and other atmospheric optics."