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About 380 to about 750 nanometers
- A typical human eye will respond to wavelengths from about 380 to about 750 nanometers.
en.wikipedia.org/wiki/Visible_spectrum
Visible light - that which is detectable by the human eye - consists of wavelengths ranging from approximately 780 nanometer (7.80 x 10 -7 m) down to 390 nanometer (3.90 x 10 -7 m). Specific wavelengths within the spectrum correspond to a specific color based upon how humans typically perceive light of that wavelength.
- Light Absorption, Reflection, and Transmission
The light wave could be reflected by the object. And the...
- Color Subtraction
Practice A: Magenta light is a mixture of red light and blue...
- Blue Skies and Red Sunsets
The sun emits light waves with a range of frequencies. Some...
- The Electromagnetic and Visible Spectra
When all the wavelengths of the visible light spectrum...
- Anatomy of a Two-Point Source Interference Pattern
The animation below shows a series of concentric circles...
- Light Absorption, Reflection, and Transmission
When fully light-adapted, the human eye features a wavelength response from around 400 to 700 nanometers, with a peak sensitivity at 555 nanometers (in the green region of the visible light spectrum).
- Wavelengths and Colors of The Visible Spectrum
- Real vs Theoretical Visible Spectrum
- Colors Beyond The Spectrum
- References
Isaac Newton coined the word spectrum in 1671 in his book Opticks. Spectrum is Latin for “appearance” or “apparition” and Newton used the term to describe the rainbow spectrum produced by sunlight passing through a prism. Sunlight is a form of white light, which is the color you get when all of the wavelengths of light blend together. Newton saw th...
Although scientists assign wavelength ranges for the colors, they are continuous. There aren’t any boundaries between one color and another. The wavelength limits of human vision are ambiguous, too. Some people can see further into the infrared and ultraviolet than others. Usually, humans (and animals) that can see further into one end of the spect...
The eyes and brain see many more colors than those of the visible light spectrum. For example, purple and magenta aren’t on the spectrum. They are the brain’s way of connecting red and purple. There are also desaturated and blended colors, such as pink and brown. Mixing pigments on a palette forms hues and tints that aren’t spectral colors.
Agoston, George A. (1979). Color Theory and Its Application in Art and Design. Berlin: Springer. doi:10.1007/978-3-662-15801-2Bruno, Thomas J.; Svoronos, Paris D. N. (2005). CRC Handbook of Fundamental Spectroscopic Correlation Charts. CRC Press. ISBN 9781420037685.Evans, Ralph M. (1974). The Perception of Color. New York: Wiley-Interscience. ISBN 978-0-471-24785-2.McLaren, K. (March 2007). “Newton’s Indigo”. Color Research & Application. 10 (4): 225–229. doi:10.1002/col.5080100411A typical human eye will respond to wavelengths from about 380 to about 750 nanometers. [3] In terms of frequency, this corresponds to a band in the vicinity of 400–790 terahertz. These boundaries are not sharply defined and may vary per individual. [4]
Aug 10, 2016 · Typically, the human eye can detect wavelengths from 380 to 700 nanometers. WAVELENGTHS OF VISIBLE LIGHT. All electromagnetic radiation is light, but we can only see a small portion of this radiation—the portion we call visible light. Cone-shaped cells in our eyes act as receivers tuned to the wavelengths in this narrow band of the spectrum.
The visible spectrum covers the wavelengths from approximately 360 to 800 nm. Radiated optical energy (light) can be measured and correlated with human vision. This is called photometry, which is defined as the measurement of visible light based on the response of an average human observer.
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Download a diagram showing the varying sensitivity of the human eye to wavelengths of light between 380 and 700 nanometres (nm).
