The range of visible light for human beings is determined by the specific sensitivity of our eyes to different wavelengths of light. The range of wavelengths that humans can perceive as visible light is approximately 400 to 700 nanometers.
Expanding the range of visible light for human beings would require either altering the structure and function of our eyes or using technological aids. Here are a few possibilities that scientists have explored or speculated upon:
Augmented Reality (AR) or Virtual Reality (VR): With the help of technology, it is possible to create augmented or virtual environments where the perception of light can be extended beyond the visible range. Specialized devices can simulate or enhance the appearance of light in ways that go beyond the limitations of human vision.
Sensory Substitution: Scientists have experimented with sensory substitution devices that convert non-visible information, such as infrared or ultraviolet light, into sensory inputs that can be perceived by other senses. For example, converting infrared light into auditory signals that can be interpreted by hearing.
Genetic Engineering: In theory, it might be possible to genetically modify human eyes to be more sensitive to a broader range of wavelengths. However, this remains highly speculative, as it involves complex genetic alterations and would raise ethical considerations.
Technological Enhancements: Researchers are also exploring the use of specialized technologies, such as specialized contact lenses or implants, that could extend the range of visible light by detecting and converting non-visible wavelengths into visible ones.
It's important to note that while these possibilities are being explored, they are still in the realm of scientific research and development. Expanding the range of visible light for human beings beyond the natural biological limits is a complex and challenging endeavor, and it may take significant advancements in technology and understanding before such expansions become a reality.