Purpose: A conventional bipartite apparatus to measure color matching functions (CMFs) usually consists of plural optical paths; a path for a test stimulus consisted of three primaries, and that for the reference stimulus. The primaries should be presented to both optical paths, as "negative" light in the reference stimulus is sometimes required to complete color matching. Thus, the conventional apparatus should have plural light sources in each optical path and required complicated alignments. In order to realize a compact apparatus to measure CMFs, we developed a bipartite apparatus with time-controlled LED lights.
展开▼
