Exhibit 9 - a polarimeter
A polarimeter made by J.G.Hofmann of Paris. It has a fringe-producing device at the eyepiece end that is based on the same principle as a Babinet compensator, to allow accurate setting of the initial polarizer.
A polarimeter made by J.G.Hofmann of Paris. It has a fringe-producing device at the eyepiece end that is based on the same principle as a Babinet compensator, to allow accurate setting of the initial polarizer.