Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine (1914)

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300 PROJECTION MICROSCOPES ON THE MARKET [Cn. IX FIG. 164. PROJECTION MICROSCOPE, MAGIC LANTERN AND MEDIOSCOPE WITH SINGLE RADIANT. (Cut loaned by Williams, Brown & Earle}. The arc lamp and condenser move laterally so that each instrument can be illuminated at will. A The medioscope is an achromatic combination of large aperture for objects of large size, but smaller than lantern slides. B Projection microscope with large projection ocular. It has a water-cell (D) in the path of the light. The arc lamp and condenser (N O P) are in place for micro-projection. C Projection objective for lantern slides. FIG. 165. NEW REFLECTING LANTERN WITH THE PROJECTIONMICROSCOPE. (Cut loaned by Williams, Brown & Earle). This figure shows the new combined lantern of Williams, Brown & Earle with the projection microscope in position, the magic lantern objective having been