Visible Spectrum Infrared And Ultraviolet Light

Some people can see further into the ultraviolet and infrared ranges than others so the visible light edges of red and violet are not well defined.

Visible spectrum infrared and ultraviolet light.

Light also referred to in professional literature as radiation is best thought of as a spectrum consisting of ultraviolet light uv at the short end visible light in the center and infrared ir wavelengths at the long end. While invisible to humans as with infrared light we can see the effects. Ultraviolet light is a type of electromagnetic radiation that precedes the color violet in the light spectrum. Ultraviolet light has shorter wavelengths than visible light with lengths of 10 to 400 nanometers.

It is also known as the optical spectrum of light or the spectrum of white light. Lasers commonly operate in the uv visible and ir frequencies. The sun is the best known source of ultraviolet rays. The only direct signature of the nuclear process is the emission of neutrinos.

Non ionizing radiation includes the spectrum of ultraviolet uv visible light infrared ir microwave mw radio frequency rf and extremely low frequency elf. You can test yourself using a prism and a sheet of paper. In space infrared light helps us map the dust between stars. This is similar to how a dog can hear the sound of a whistle just outside the hearing range of humans.

Non ionizing radiation is found in a wide range of occupational settings and can pose a considerable health risk. Ultraviolet radiation is emitted by the sun and are the reason skin tans and burns. The sun also emits x rays ultraviolet visible light infrared and even radio waves. Hot objects in space emit uv radiation as well.

Essentially that equates to the colors the human eye can see. Also seeing well into one end of the spectrum doesn t necessarily mean you can see well into the other end of the spectrum. The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. It ranges in wavelength from approximately 400 nanometers 4 x 10 7 m which is violet to 700 nm 7 x 10 7 m which is red.

Although uv waves are invisible to the human eye some insects such as bumblebees can see them. Fireflies light bulbs and stars all emit visible light. White light is a combination of lights of different wavelengths in the visible spectrum. Our eyes detect visible light.

Ultraviolet uv light has shorter wavelengths than visible light.