Museo Galileo
Virtual Museum
Compound microscope, inverted
    • Setting:
      Room XIV
    • Inventor:
      Filippo Pacini
    • Maker:
      Angiolo Poggiali
    • Place:
    • Date:
      ca. 1868
    • Materials:
    • Dimensions:
      height 300 mm, base 120x120 mm
    • Inventory:
      2655 bis
    • Compound microscope, inverted (Inv. 2655 bis)

Inverted microscope, called "photographic and chemical" microscope, invented by Filippo Pacini and built by Angiolo Poggiali. The brass base carries a brass box containing a total-reflection prism. In the box are inserted the mobile stage and the inclined body-tube, fitted with a Huygenian eyepiece. Coarse focus is by moving the stage by rackwork. Fine focus is by adjusting the stage tilt with a knob. Two tapered pillars inserted in the base support the illumination mirror and a condenser lens. There are also a body-tube carrying a prism and a negative lens. This body-tube was probably used with a photographic camera.