Helmholtz three cones
nVon
Helmholtz postulted three response curves for the three types of
cones:
¨S-cones: has the best response to short wavelength
of light
¨L-cones:
…. to long wave length of light
¨I-cones:
….. to the intermediate wavelength of light.
nDifferent
colors correspond to different patterns of responses in
these cones.
No two colors produce the same response from
the three cones.