In the trichromatic nano-antenna construction of the retina each of the millions of individual light interactive sites interact with the wave nature of light in dimensionalities (roughly lambda / 2n) that are within the near field of the light wave, i.e., having lateral dimensions of less than a micron. On the retina these spaces correspond to the center-to-center distance between receptors. This space is immediately adjacent to a smaller quantum confined electron space of nanometer dimension that serves as the absorbing mass and provides the electrical input signal for formation of the visual image.
The lateral dimension of the initial light wave-accepting space between receptors defines, in antenna terms, the specific wavelength of light absorbed at that site. In the retina only three, geometrically-defined wavelengths are detected with these corresponding to the singular long and short ends (700 and 400 nm) of the visual band and, critically, the exact geometrically- determined midband wavelength (550 nm). Biology thus employs precise geometry to decode optical wavelength.
The presence of this fixed wavelength reference point on the retinal surface was predicted by Edwin Land ( his “fulcrum”) and forms the basis for his color theory. It also undoubtedly finally explains the conundrum of the color constancy vision.
Thus, a transition from the wave nature of light to quantized electron particle occurs at each of the millions of light detecting sites of the retina.
The initial interaction of light with the wave-accepting space occurs in the very fast (femtosecond or 10-15 sec.) time frame. Absorbed energy is then transferred via a slower phononic/solitonic mechanism through the thylakoid cell membrane to the adjacent quantum confined electron space. This “thermalizing” mechanism provides a short term memory function (“memristor”) linking the two spaces that undoubtedly allows time integration of visual image information from the quantum time domain to human nervous system proportions.
As antennas, each light interactive site on the retinal surface possesses directional properties, i.e., it can decode the direction of the incident light wave. I have proposed elsewhere the electronic structure that has evolved to accomplish this in these nano-antennas. This substantiates the supposition proposed by some that the Fourier transformation process is inherent in the imaging process.