What is the spectral sensitivity peak of L cone?

The spectral sensitivity peak of the L (long-wavelength) cone is actually at 557 nm. This value indicates that the L cones are most responsive to light at this wavelength, which corresponds to the red part of the visible spectrum. Understanding the peak sensitivity of the L cones is crucial in the study of color vision and how we perceive different colors.

Each type of cone cell in the retina (S cones for short wavelength, M cones for medium wavelength, and L cones for long wavelength) responds distinctly to various wavelengths of light. The L cones play a significant role in our ability to perceive colors in the red and yellow regions. Knowing the sensitivity peaks helps in understanding color mixing, vision deficiencies, and the overall functioning of the human visual system.