New or Improved Method of Electrically Transmitting to a Distance Real Optical Images and Apparatus therefor.

摘要

27,570. Rosing, B. Dec. 13. Resistances. - I n t h e transmitter used in an electrical method of producing light pictures of a distant object, a rotating prismatic mirror 1 is provided with a fixed rheostat 6, comprising loops of w i r e connected in series. The rubbing- contacts 7 carried by the rotating mirror alter the resistance by varying the length of loop enclosed in the circuit.