פיגמנטים בתאי קנים ומדוכים, ברשתית העין האנושית. תרגום מאנגלית: image:Cone-response.png Română: Curbele de absorbţie spectrală în funcţie de lungimea de undă
choice. This image is a derivative work of the following images: File:Cone-response.svg licensed with Cc-by-sa-3.0-migrated, GFDL 2011-10-19T02:15:50Z TAKASUGI