How A-nlimli .
Ose&O?
'«¡WORLD
- Humans have trichromacy, meaning	/(O/l fOf	^
we can see short, medium, and long	r \J and JiJ	\
color wavelengths between	nanometers (nm)	-/
Frequency (Hi) Wavelength
c	30,000 tenses')
12 types of photoreceptors
(humans have only 3).
Photoreceptor classes