Apparatus for Making Optical Projections by Reflection from the Front-side of Drawings, Printings, Corporal Objects, and the like.

摘要

28,556. Zimmerhackel, C. Dec. 29. Magic-lantern apparatus.-Fig. 1 shows in section an arrangement for projecting on to a screen images of opaque objects. The object k to be projected is placed in a box p so as to be illuminated by a lamp f and condenser h. The projecting lens is shown at m. The box p and the condenser h can be turned through a right-angle to project on to a vertical screen.