色彩視覺的三色論及其應用

Trichromatic Theory of Color Vision and its Applications

對具有正常色彩視覺的人而言， 若能適當選定三種色光，並調整其各自的強度便可以混成各種顏色。此種必須要三色方能達成配對的心理物理實驗，可藉由數學式的推導而知吾人內在處理系統的數目必為三。本文介紹色彩的功能、色彩研究的特色，並以色彩配對實驗解說三色理論（trichromatic theory）的原理以及其在量測與顯色系統方面的應用。適切地瞭解三色論的基本原理將有助於對色彩應用的正確認識，以及演色技術的突破與創新。

Various colors can be obtained by mixing three appropriately chosen chromatic lights. Such color matching experiments had been taken as strong evidence to support the trichromatic color vision theory. The function of color vision, the diversity of color vision research, and the mathematical expressions of trichromatic theory and its applications are explained in this article. Links between the fundamental principles of the trichromatic theory and various color applications are also stressed in the text.