[INP-23p] A Simple Color-vision Test Pattern for Determining the Type and Degree of Color Deficiency
*Masaki Nose1, Aya Oohira2, Yoshihiko Azuma3, Keiji Uchikawa4(1. Ricoh Company Ltd., 2. Otake Ganka, 3. Tokyo Polytechnic University, 4. Kanagawa Institute of Technology)