METHOD FOR DETERMINING QUALITY OF LENTICULAR SHEET

摘要

A method is provided for evaluating the quality of a lenticular sheet prior to its utilization. The lenticular sheet having an undetermined number of lenticules per unit of measurement is positioned over a grating having a known number of lines per unit of measurement. The resulting moiré fringe pattern is evaluated to determine the number of lenticules the lenticular sheet has per unit of length.