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See all on WikipediaOptical radiation - Wikipedia
Optical radiation is the part of the electromagnetic spectrum with wavelengths between 100 nm and 1 mm. This range includes visible light, infrared light, and part of the ultraviolet spectrum. Optical radiation is non-ionizing, and can be focused with lenses and manipulated by other optical elements. Optics is the … See more
Optical radiation may be divided into two types:
Artificial optical radiation Artificial optical radiation is produced by artificial sources, including coherent … See moreThe European Union (EU) has laid down minimum harmonized requirements for the protection of workers against the risks arising from exposure to Artificial Optical Radiation (e.g. UVA, laser, etc.) in the Directive 2006/25/EC. A Non-binding guide to good … See more
Wikipedia text under CC-BY-SA license Visible spectrum - Wikipedia
The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the term more broadly, to include the ultraviolet and infrared parts of the electromagnetic spect…
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Optics - Wikipedia
See more on en.wikipedia.orgOptics began with the development of lenses by the ancient Egyptians and Mesopotamians. The earliest known lenses, made from polished crystal, often quartz, date from as early as 2000 BC from Crete (Archaeological Museum of Heraclion, Greece). Lenses from Rhodes date around 700 BC, as do Assyrian le…Electromagnetic spectrum - Wikipedia
Generally, electromagnetic radiation is classified by wavelength into radio wave, microwave, infrared, visible light, ultraviolet, X-rays and gamma rays. The behavior of EM radiation depends on its wavelength. When EM radiation …
Light - Wikipedia
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres …
Optic radiation - Wikipedia
In neuroanatomy, the optic radiation (also known as the geniculocalcarine tract, the geniculostriate pathway, and posterior thalamic radiation) are axons from the neurons in the lateral geniculate nucleus to the primary visual cortex.
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Infrared - Wikipedia
A false-color image of two people taken in long-wavelength infrared (body-temperature thermal) radiation This pseudocolor infrared space telescope image has blue, green, and red corresponding to wavelengths of 3.4, 4.6, and 12 μm, …
Laser - Wikipedia
A telescope in the Very Large Telescope system producing four orange laser guide stars. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic …
Scattering - Wikipedia
When radiation is only scattered by one localized scattering center, this is called single scattering.It is more common that scattering centers are grouped together; in such cases, …
Rayleigh scattering - Wikipedia
Rayleigh scattering causes the blue color of the daytime sky and the reddening of the Sun at sunset. Rayleigh scattering (/ ˈ r eɪ l i / RAY-lee) is the scattering or deflection of light, or other electromagnetic radiation, by particles with a size …
Optics | History, Applications, & Facts | Britannica
Oct 4, 2024 · optics, science concerned with the genesis and propagation of light, the changes that it undergoes and produces, and other phenomena closely associated with it. There are two major branches of optics, physical and …
BfS - What is optical radiation? - What is optical radiation?
Optical radiation comprises the regions of ultraviolet radiation (UV), visible light (VIS) and infrared radiation (IR). The natural source of optical radiation is the sun. Optical radiation can also be …
Optical radiation - HSE
Optical radiation is another term for light, covering ultraviolet (UV) radiation, visible light, and infrared radiation. The greatest risks to health are probably posed by: UV radiation from...
Electromagnetic radiation - Wikipedia
EM radiation (the designation 'radiation' excludes static electric and magnetic and near fields) is classified by wavelength into radio, microwave, infrared, visible, ultraviolet, X-rays and gamma …
Radiation | Definition, Types, Effects, & Facts | Britannica
Nov 4, 2024 · radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays. All matter is constantly bombarded with radiation …
Light | Definition, Properties, Physics, Characteristics, Types ...
Nov 14, 2024 · light, electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma …
Albedo - Wikipedia
Albedo change in Greenland: the map shows the difference between the amount of sunlight Greenland reflected in the summer of 2011 versus the average percent it reflected between …
Optical radiation - Wikiwand
Optical radiation is the part of the electromagnetic spectrum with wavelengths between 100 nm and 1 mm. This range includes visible light, infrared light, and part of the ultraviolet spectrum. …
Laser | Definition, Acronym, Principle, Applications, & Types
Oct 22, 2024 · laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. The …
Nonlinear optical materials for sensor protection against pulsed …
Nov 13, 2024 · The growing use of lasers increases the risk of accidental or intentional damage to human eyes and optical sensor systems. Current protection equipment is based on optical …
Optical radiation — Wikipedia Republished // WIKI 2
Optical radiation is the part of the electromagnetic spectrum with wavelengths between 100 nm and 1 mm. This range includes visible light, infrared light, and part of the ultraviolet spectrum. …
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