Important Franz Schmidt & Haensch Polarimeter With Tripod. Germany, End of XIX Century.

This appealing and curious device is a Laurent type polarimeter, an instrument for scientific research designed to conduct practical experiments. This device verifies the deviation of light beams when passing through certain chemical component. This is quite a big piece made in the late 19th century. The polarimeter is complete and preserves all its original component parts except for the inner glass tube designed to contain the chemical component. This tube is not from the same period but probably from the 1930s. The front brass disk bears an engraved inscription that reads: Franz Schmidt & Haensch, Berlin and also the serial number Nº 5382. This company manufactures instruments and material for scientific research and was founded in 1864 by the mechanic Franz Schmidt and the optician Herrmann Haensch. These entrepreneurs started the business in April, after receiving an inheritance that would let them acquire the necessary capital. The firm is still active in Berlin and is a real reference in its field. It is managed by the members of the familys fifth generation. The instrument is well preserved although the brass and iron pieces show the patina given by the trace of time and use. This provides to this article with a singular attractive and personality. Nevertheless, the polarimeter is still quite good conditions. These instruments were used to determine the deviation value of polarized light beams. They measure the angle of rotation caused by passing polarized light through an optically active substance, contained in the central glass tube. Its personality and attractive design turn this striking antique polarimeter into a classy and charming piece. Measurements: Width: 22 in / 56 cm. Height: 16.9 in / 43 cm.