A cone class relatively sensitive at shorter wavelengths. Its signal is compared with other cone signals, and its sparse retinal sampling differs from the combined L/M mosaic.
A cone class with an intermediate relative spectral sensitivity. Its broad overlap with L-cone sensitivity makes comparisons informative; a response does not label a stimulus green.
A cone class with spectral sensitivity relatively shifted toward longer wavelengths compared with M and S classes. Its broad response is not a detector for a unique red sensation.
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Cone cells, or cones, are one of the two types of photoreceptor cells found in the retina of the eye, the other being rod cells. They play a crucial role in color vision and visual acuity in well-lit conditions. Cone cells are responsible for detecting light and converting it into electrical signals that can be interpreted by the brain.