The maximum extent of light wavelength detectable by the average human visual system lies within a specific range. Determining this upper limit involves understanding the physiology of the eye and the properties of electromagnetic radiation. The sensation of color arises from the stimulation of cone cells in the retina by photons of varying energies. The longest wavelength, perceived as red, marks the boundary of visibility at the lower energy end of the spectrum.
Identifying this limit is crucial in various scientific and technological fields. In ophthalmology, it provides a baseline for assessing visual acuity and color perception deficiencies. In physics, it serves as a reference point in electromagnetic spectrum studies. Historically, accurate determination of this wavelength has refined our understanding of human vision and the interaction of light with biological matter. This knowledge has fueled advancements in fields such as lighting design, display technology, and medical imaging.
