Optical system for displaying signals in color

Claim 1

A SYSTEM FOR DISPLAYING SIGNALS OF VARYING INTENSITIES COMPRISING MEANS TO PRODUCE DIVERGENT RAYS OF LIGHT HAVING DISTINCTIVE COLORS, A FIRST MASK DISPOSED AT A LOCATION IN THE PATHS OF SAID RAYS, SAID FIRST MASK HAVING A TRANSPARENT LINE EXHIBITING DEFLECTIONS REPRESENTATIVE OF THE VARIATION IN INTENSITY OF SAID SIGNALS, A SECOND MASK DISPOSED IN THE PATHS OF SAID RAYS AT A LOCATION DISPLACED FROM THAT OF SAID FIRST MASK, SAID SECOND MASK HAVING AN UNDEFLECTED TRANSPARENT LINE, MEANS TO MAINTAIN SAID FIRST AND SECOND MASKS IN FIXED RELATIONSHIP WHEREBY UNDEFLECTED PORTIONS OF SAID FIRST LINE AND THE CORRESPONDING PORTION OF SAID SECOND LINE ARE IN A UNIFORM ANGULAR RELATIONSHIP WITH SAID DIVERGENT RAY PRODUCING MEANS AND THEREBY PASS ONLY RAYS OF A DISTINCT COLOR, DEFLECTIONS OF SAID FIRST LINE PRODUCING VARIATIONS IN SAID ANGULAR RELATIONSHIP AND THEREBY PASSING DIFFERENT COLORS CORRESPONDING WITH THE VARIATIONS IN SIGNAL INTENSITY, AND MEANS TO VIEW THE TRANSMITTED RAYS.