Study of blue-purple filters correcting age-related middle level yellow vision aided with computer

摘要

Blue-filters for nearly correcting age-related yellow Vision were selected out of marketing blue-filters in former report. In this report, selection study of blue-purple filters correcting middle level yellow vision, in B.Y.mixed color charts, and in R.B.Y.mixed color charts were held aided with computer. We obtained 3 B.P.filters with higher brightness correcting age-related middle level yellow vision for B.Y.mixed color charts, as to return to each original color chromatogram and to set in original colors' position line in xy-chromaticity diagram.