That agent, force, or action in nature by the operation of which upon the organs of sight, objects are rendered visible or luminous.
The time during which the light of the sun is visible; day; especially, the dawn of day.
The brightness of the eye or eyes.
Open view; a visible state or condition; public observation; publicity.
Having light; not dark or obscure; bright; clear; as, the apartment is light.
The full vibrational spectrum of energies ranging from the highest etheric vibrational levels of the Godhead down to physical manifestation in the lowest densities of experience. Essentially, everything is Light
Visible radiation (about 0.4-0.7 µm in wavelength) considered in terms of its luminous efficiency, that is, evaluated by its ability to stimulate the human sensation of sight.
Any radiation capable of causing a visual sensation direct by a source, usually measured in lumens or candlepower. When light strikes a surface it is absorbed, transmitted, or reflected.
The portion of the electromagnetic spectrum that is visible to the human eye.
All electromagnetic radiation can be called light. However, the term 'light' is commonly used for the electromagnetic radiation that the human eye can detect, that is, the 'visible' or 'optical' light.
Type of electromagnetic radiation that oscillates between electric and magnetic fields, and can be detected by the human eye.
That small part of the electromagnetic spectrum whose wavelengths lie in the range of 380 to 720 nanometers, and hence are detectable by the human eye.
Radiant energy which can be seen or sensed by the human eye. Visible light is measured in lumens.
See electromagnetic radiation.
The visible part of the electromagnetic spectrum: red, orange, yellow, green, blue, indigo and violet. White light is a combination of all the above colours.
Electromagnetic radiation in the spectral range detectable by the human eye (approx. 380 to 720nm).
Electromagnetic radiation with wavelengths capable of causing the sensation of vision. Visible light is within the wavelength range of 400-700nm nanometres(nm), or 4 x 10-7 metres to 7.7 x 10-7 metres. Variations in the wavelength produce different sensations in the eye, corresponding to different colours. See also Visible spectrum.
see visible radiation Licht
(physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window"
brightness and animation of countenance; "he had a sparkle in his eye"
an Emissive Energy product
electromagnetic wave visible to humans
In common usage this refers to electromagnetic radiation in optical wavelengths. However, in the discussion of remote sensing I tend to use this to indicate any kind of photon energy beam.
Electromagnetic energy defined as visible energy between 3800-7800 Angstrom range.
electromagnetic radiation within the frequency range 400–750 nanometers
EMR within 400-700 nm in wavelength that is detectable by the human eye.
Electromagnetic radiation with a wavelength of between 380-720nm. Ultraviolet light has a wavelength of less than 380nm whilst infrared light is greater at 720nm. i.e the cooler and warmer end of the lighting spectrum.
Electromagnetic radiation in the spectral range detectable by the human eye (approx. 400 to 700nm).
A form of radiant energy that has a speed of 3.0 x 10^8 m/s
technically, the spectrum of electromagnetic radiation, which can be seen by the human eye; also, the source of light or its use in painting such as the illumination of a subject or an aspect of a piece of work for emphasis.
a form of energy that is emitted by the sun or by a chemical reaction to which the eye is sensitive.
Radiant energy that is capable of producing a visual sensation. The visible portion of the electromagnetic spectrum extends from about 380 to 770 nanometers.
Radiant energy that is capable of exciting the retina and producing a visual sensation.
A form of energy, necessary to see. Visible light is that part of the spectrum that produces the sensation of sight in the human eye. The wavelengths of the radiation in this visible range are very small and are usually expressed in either millimicrons or nanometers. The values given for the limits of the range of wavelengths in visible light will depend on the textbook you are reading, but will be around 380 - 760 nanometers or 400 - 750 nanometers. The rays that cause us to see violet have the smaller, shorter wavelength, around 380 nanometers or milli-microns. Each color of the spectrum, blue, green, yellow, and orange, will have a range of wavelengths up to red at around 660 - 750 nanometers.
is electromagnetic radiation between 400 nm and 750 nm which is detectable by the human eye.
The visible part of the electromagnetic spectrum. To learn more about light, click here.
An electromagnetic radiation in the wavelength range including infrared, visible, ultraviolet, and X rays, usually the range visible to the human eye, i.e., the energy that enables vision. Light travels in a vacuum at 300,000 km/sec. (186,281 miles per second).
Electromagnetic radiation with wavelengths between 400 and 700nm that is visible. The primary colors of light are Red, Green and Blue. The opposite of heavy.
The radiant energy that the eye perceives. From a scientific standpoint, light is composed of electromagnetic wages of varying intensities lying between the ultraviolet and infrared radiation spectrums.
the common term for electromagnetic radiation, usually referring to that portion visible to the human eye. However, other bands of the electromagnetic spectrum are also often referred to as different forms of light.
EMR within 0.4 to 0.7 micrometres in wavelength that is detectable by the human eye.
Light is a form of energy.
The indication that one has the powers of a mage, touch, or visant, visible only to others who possess the same light; people of different lights can't see the lights in each other. The light of mages is a golden yellow, the light of touches a coppery red, the light of visants a silver blue.
Electromagnetic radiation that has a wavelength in the range from about 4,000 (violet) to about 7,700 (red) angstroms and may be perceived by the normal unaided human eye.
Visible radiation (about 0.4 to 0.7 microns in wavelength) considered in terms of its luminous efficiency, that is, evaluated in proportion to its ability to stimulate the sense of sight.
energy source used by plants to form carbohydrates, an important abiotic factor.
A form of energy that stimulates the eye and makes it possible to see things.
Radiation generally considered "visible," with wavelengths between 400 and 700nm. Optical components and applications often encompass radiation just below 400nm (ultraviolet) and just above 700nm (infrared).
Electromagnetic radiation visible to the human eye at 400 nm to 700 nm. The term is also applied to electromagnetic radiation with properties similar to visible light, including the invisible near-infrared radiation in most fiber optic communication systems.
electromagnetic radiation with a wavelength between 1millimeter and 10nanometers.
A form of electromagnetic radiation composed of different wavelengths ranging from violet to red that are visible to the naked eye. Light is also a means by which energy can be transferred.
luz] the visible portion of the electromagnetic spectrum that humans are capable of detecting, ranging from roughly 400 nm to 700 nm.
The energy that allows us to see. Light can be expressed in terms of intensity (candela), flux (lumen), luminance (candela/square foot), and exitance (lumen/square foot).
a form of energy called radiant energy that travels freely through space
Radiant energy which can be sensed or seen by the human eye. Visible light is measured in lumens. The term generally applied to the visible energy from a source. Light is usually measured in lumens or candlepower. When light strikes a surface, it is either absorbed, reflected or transmitted. Light is said to travel in straight lines.
Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm.
Electromagnetic radiation of all wavelengths and frequencies. The familiar "rainbow" of light spans a narrow slit in the electromagnetic spectrum, from 700 nanometers (red) to 400 nanometers (blue). The wavelengths of red and blue light differ by less than a factor of two. The electromagnetic spectrum range spans beyond a factor of 10^18, (1 followed by 18 zeroes) from radio to gamma ray wavelengths. Radio wavelengths can be the size of mountains while gamma ray wavelengths are the size of an atomic nucleus.
Usually the visual portion of the electromagnetic spectrum between infrared (about 8000 Angstroms or 800 nanometers(nm)) and ultraviolet (about 4,000 Angstroms or 400 nm); however, the term is sometimes used as a synonym for all electromagnetic radiation.
Electromagnetic radiation in the spectral range that is detectable by the human eye (approximately 380 to 720 nm).
A form of radiation that is visible to the human eye enabling sight. The light source is called radiant and is caused by one form of energy converted into radiation or radiant light
The range of electromagnetic radiation frequencies detected by the eye, or the wavelength range from about 400 to 760 nanometers. The term is sometimes used loosely to include radiation beyond visible limits.
electromagnetic waves in the visible range, having a wavelength from about 400 nanometers in the extreme violet to about 770 nanometers in the extreme red. Light is considered to exhibit particle and wave properties, and the fundamental particle, or quantum, of light is called the photon. The speed of light (and of all electromagnetic radiation) in a vacuum is approximately 186,000 mi/300,000 km per second, and is a universal constant denoted by c.
Refers to electromagnetic radiation with wavelengths in the range of about 380 - 760 nm that have the capability of stimulating the photoreceptors within the eye.
A humanly visible form of electromagnetic radiation. This radiation has a wavelength between 0.40 and 0.71 micrometers (µm).
Electromagnetic radiation capable of producing the sensation of vision and found between ultraviolet and infrared radiations in the electromagnetic spectrum.
The region of the electromagnetic spectrum which is visible to the human eye. Usually considered as the region from 0.39 (violet) to 0.77 (red) microns.
A form of electromagnetic radiation. Visible light is that associated with stimulating the organs of sight, which for normal human vision ranges in wavelength from 3900 to 7700 ångstroms.
Light is radiant energy of such wavelength that, falling on the retina, it stimulates the rods and cones of the eye and produces the sensation of vision. The foregoing is a physiological (subjective) definition which tells what light does, under certain conditions, rather than what it is. According to the (objective) Maxwell theory, all radiant energy is electromagnetic (q.v.) in character, the generation of the radiation depending upon the portion of the spectrum under consideration. For that part of the spectrum lying within the visual range, approximately 400 to 700 nanometers (nm) the release of light energy from externally stimulated sources may be thought of as due to atomic or molecular vibration or to the passing of electrons from high to lower energy levels accompanied by the spasmodic release of energy as the electronic orbits decrease in diameter. See quantum theory.
A form of electromagnetic radiation. Visible light (400 nm to 770 nm) can be perceived by the unaided human eye. See infrared and ultraviolet.
In the laser and optical communication fields, the portion of the electrode by the basic optical techniques used for the visible spectrum extending from the near ultraviolet region of approximately 0.3 micron, through the visible region and into the mid-infrared region of about 30 microns.
A stream of very small packets of energy, called photons, traveling very fast (3 times 105 km/sec, in vacuum).
Often synonymous with visible radiation but sometimes applied to electromagnetic radiation well outside the visible spectrum.
Electromagnetic radiation of which a human observer is aware through the visual sensations that arise from the stimulation of the retina of the eye. The portion of the electromagnetic spectrum that the human eye can see.
Electromagnetic energy that falls with a specific range of frequencies.
A form of energy that travels in waves.
In a strict sense, the region of the electromagnetic spectrum that can be perceived by human vision, designated the visible spectrum, and nominally covering the wavelength range of 0.4 µm to 0.7 µm. In the laser and optical communication fields, custom and practice have extended usage of the term to include the much broader portion of the electromagnetic spectrum that can be handled by the basic optical techniques used for the visible spectrum. This region has not been clearly defined, but, as employed by most workers in the field, may be considered to extend from the near-ultraviolet region of approximately 0.3 µm, through the visible region, and into the mid-infrared region to 30 µm.
In a strict sense, the visible spectrum nominally covering the wavelength range of 400 nm to 750 nm. In the laser and optical communications field, the much broader portion of the electromagnetic spectrum that can be handled by the basic optical techniques used for the visible spectrum extending from the near-ultraviolet region of approximately 0.3 micrometers through the visible region and into the mid-infrared region to 30 micrometers.
A lighted navigational aid such as a lighthouse that can be used at night or in poor visibility.
Light is a type of energy (and the tiny part of the electromagnetic spectrum that we can see). The fastest that light can travel is 186,300 miles per second. Visible light has a wavelength from 10 m to 10
Electromagnetic radiation in a band of frequencies that can be received by the human eye.
Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelengthhttp://www.lightsources.org/cms/?pid=1000166. The elementary particle that defines light is the photon.