PSYC 2390 Lecture Notes - Lecture 6: Chromatic Aberration, Roygbiv, Color Vision

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Saturation has to do with the purity of the colour (most saturated more pure: monochromatic light = one wave length (most saturated, ex. blue. Desaturation is a mix of wavelengths (not pure: ex. White light through a prism: roygbiv. Roygbiv through a prism: roygbiv, does(cid:374)"t (cid:271)reak do(cid:449)(cid:374) a(cid:374)y s(cid:373)aller. 3 different kinds of cones: different photopigments, all make of retinal and opsin, opsin types: Cyanolabe sensitive to short wave lengths (blue) Chlorolabe sensitive to medium wave lengths (green) Erythrolabe sensitive to long wave lengths (red) Can mix colours together to create a monochromatic light. Yellow is a metamer but seems so pure to the eye like a monochromatic colour. Green paint absorbs red and blue, and bounces back the green. Red on green: red absorbs green, green absorbs red ~ a black colour. Tv: has 3 different phosphors: red, green, blue, colour on tv produced from light mixing. Blue is more out of focus as it is furthest out.