Method and apparatus for determining fabric streakiness

Claim 1

A DEVICE FOR NUMERICALLY ASSESSING VISIBLE DYE NONUNIFORMITY IN A FABRIC COMPRISING: (A) A SOURCE OF RADIANT ENERGY; (B) MEANS FOR MOVING A DYED SAMPLE THROUGH THE FIELD OF RADIATIONS PRODUCED BY SAID SOURCE WHEREBY RADIANT ENERGY WILL BE REFLECTED FROM SAID SAMPLE WHICH WILL HAVE AN INTENSITY PROPORTIONAL TO THE DYE DEPTH OF SAID SAMPLE; (C) MEANS FOR CONVERTING RADIANT ENERGY TO DIRECT CURRENT ELECTRICAL ENERGY; (D) OPTICAL MEANS FOR DIRECTING THE RADIANT ENERGY REFLECTED FROM SAID SAMPLE TO SAID MEANS FOR CONVERTING RADIANT ENERGY TO ELECTRICAL ENERGY WHEREBY THE ELECTRICAL ENERGY EMITTED FROM SAID MEANS FOR CONVERTING WILL VARY ACCORDING TO THE INTENSITY OF SAID REFLECTED ENERGY; (E) MEANS FOR COMPUTING THE ARITHMETIC MEANS OF THE MAGNITUDE OF SAID DIRECT CURRENT ELECTRICAL ENERGY PRODUCED DURING THE PERIOD OF TIME SAID DYED FABRIC IS MOVING THROUGH SAID FIELD OF RADIATIONS, SAID ARITHMETIC MEANS BEING DIRECTLY PROPORTIONAL TO THE AVERAGE DYE DEPTH OF SAID SAMPLE; (F) MEANS FOR COMPUTING THE VARIANCE OF THE MAGNITUDE OF SAID DIRECT CURRENT ELECTRICAL ENERGY FROM SAID ARITHMETIC MEANS PRODUCED DURING THE PERIOD OF TIME SAID DYED FABRIC IS MOVING THROUGH SAID FIELD OF RADIATIONS, SAID VARIANCE BEING PROPORTIONAL, TO THE VISUAL APPEARANCE OF DYE DEPTH VARIATIONS ABOUT SAID AVERAGE DYE DEPTH OF SAID SAMPLE; (G) MEANS FOR TRANSMITTING SAID ELECTRICAL ENERGY FROM SAID MEANS FOR CONVERTING TO SAID MEANS FOR COMPUTING THE MEANS AND VARIANCE; AND (H) MEANS FOR CONVERTING SAID MEANS AND VARIANCE INTO VISUALLY DISPLAYED QUANTITATIVE VALUES.

Claim 2

A DEVICE FOR NUMERICALLY ASSESSING VISIBLE DYE NONUNIFORMITY IN A FABRIC COMPRISING: (A) A SOURCE OF RADIANT ENERGY; (B) MEANS FOR MOVING A DYED SAMPLE THROUGH THE FIELD OF RADIATIONS PRODUCED BY SAID SOURCE WHEREBY RADIANT ENERGY WILL BE REFLECTED FROM SAID SAMPLE WHICH WILL HAVE AN INTENSITY PROPORTIONAL TO THE DYE DEPTH OF SAID SAMPLE; (C) MEANS FOR CONVERTING RADIANT ENERGY TO DIRECT CURRENT ELECTRICAL ENERGY; (D) OPTICAL MEANS FOR DIRECTING THE RADIANT ENERGY REFLECTED FROM SAID SAMPLE TO SAID MEANS FOR CONVERTING RADIANT ENERGY TO ELECTRICAL ENERGY WHEREBY THE ELECTRICAL ENERGY EMITTED FROM SAID MEANS FOR CONVERTING WILL VARY ACCORDING TO THE INTENSITY OF SAID REFLECTED ENERGY; (E) MEANS FOR COMPUTING THE ARITHMETIC MEANS OF THE MAGNITUDE OF SAID DIRECT CURRENT ELECTRICAL ENERGY PRODUCED DURING THE PERIOD OF TIME SAID DYED FABRIC IS MOVING THROUGH SAID FIELD OF RADIATIONS, SAID ARITHMETIC MEANS BEING DIRECTLY PROPORTIONAL TO THE AVERAGE DYE DEPTH OF SAID SAMPLE; (F) MEANS FOR COMPUTING THE VARIANCE OF THE MAGNITUDE OF SAID DIRECT CURRENT ELECTRICAL ENERGY FROM SAID ARITHMETIC MEANS PRODUCED DURING THE PERIOD OF TIME SAID DYED FABRIC IS MOVING THROUGH SAID FIELD OF RADIATIONS, SAID VARIANCE BEING PROPORTIONAL, TO THE VISUAL APPEARANCE OF DYE DEPTH VARIATIONS ABOUT SAID AVERAGE DYE DEPTH OF SAID SAMPLE; (G) MEANS FOR TRANSMITTING SAID ELECTRICAL ENERGY FROM SAID MEANS FOR CONVERTING TO SAID MEANS FOR COMPUTING THE MEANS AND VARIANCE; AND (H) MEANS FOR CONVERTING SAID MEANS AND VARIANCE INTO VISUALLY DISPLAYED QUANTITATIVE VALUES.