Founded in 1933, Karl Lambrecht Corporation specializes in fabricating optical components made of birefringent crystals of calcite, quartz, magnesium fluoride, mica, and many more. The company makes available a wide range of products, such as calcite/magnesium fluoride/crystal quartz polarizers, retardation/mounting devices, scrambler, thin films and glass components. Karl Lambrecht Corporation fabricates several different polarization components of various apertures as standard catalog parts. The firm offers custom-made parts fabricated catering to the specifications provided through customers. It is located in Chicago, Ill.