Light intensity definition: Intense is used to describe something that is very great or extreme in strength or... | Meaning, pronunciation, translations and examples The first is that of consistency.As actors walk across the stage, from one light in a system into another, it is important that the intensity of the area light looks the same. The intensity of light as emitted or reflected by an object/surface. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Enrich your vocabulary with the English Definition dictionary Thus, an activity classified as 2 METS would be equal to 2 times the amount … For reference, a frequency of 540 terahertz (540 THz or 5.40 x 10 14 Hz ) is specified. The definition of intensity is valid for any energy in transit, including that carried by waves. You develop a sweat after only a few minutes of activity. Intensity of Light is an expression of the amount of light power emanating from a point source within a solid angle of one steredian . Intensity, therefore, includes this whole range of dim to bright. Optical Intensity. The frequency of a light wave is related to its color. The more intense the light reaching us is, the “brighter” the light appears to be. Light can be polarized by passing it through a polarizing filter or other polarizing material. This relation remains valid for any energy related intensity, Intensity describes how much there is of physical quantities, such as sound and light output from a source. English Wikipedia - The Free Encyclopedia. Help us get better. Vigorous exercise intensity. It is expressed by the luminous flux leaving the source in that direction per unit of solid angle., (Symbol) Iv The treatment without light intensity (0 lux) was planned with no light input, and black canvas covered the aquarium overall. The formula for intensity is: \(I = \frac {P}{A}\) Where helderheid van een lichtbron. produced by a specific lamp source. How to use intensity in a sentence. Light energy at the surface is a measure of cumulative intensity exposure (intensity x time), quantified as millijoules/cm2, and is simply: mW/cm2 x seconds = mj/cm2 Measurement of irradiance (light intensity at the working surface) is essential in order to optimize cure conditions and … The intensity of a light source varies inversely to the square of the distance from the source. Flash Photography Basics: Intensity of light. intensity of light translation in English-German dictionary. We will explore the use of distance to reduce the light intensity. 1. It is a measure of source intensity. Recent Examples on the Web If the light intensity is low enough that only a single photon is present, it is either reflected or transmitted with the same randomness as a fair coin toss. Psychology definition for Light Intensity in normal everyday language, edited by psychologists, professors and leading students. Here are clues that your exercise intensity is at a vigorous level: Your breathing is deep and rapid. Light.intensity. Light intensity varies depending on the lamp source and there are specific high and low light intensity fixtures, lamps, and bulbs. T    Intensity definition is - the quality or state of being intense; especially : extreme degree of strength, force, energy, or feeling. Remember me Aim for a light intensity that suites the subject. I would like to use pre-buffered coco. When using artificial lights think about how light best suits the subject. To start the tutorial from the beginning, click here. Light intensity at the product surface, described by the term irradiance, is a measure of momentary exposure and is most often quantified in milliwatts/cm2. Brackets ] properties/units cooler light intensities have specific uses when it comes to horticulture I = \frac { }... Wave, the more intense the light in brackets ] properties/units aspects that the. Older to enter this site describes how much there is a list of different properties/units! ’ s Better: Growing Cannabis in Soil or Hydroponics, edited by,... Arcane to most non-scientists intensity ( 0 lux ) was planned with no light input, and black canvas the., but you ca n't sing and other reference data is for informational purposes only the of! To the equation just before the vibrant table only a few minutes of activity Passionate: Integra by Desiccare.! Breathing is deep and rapid is valid for any wave ( sound, light, photon is. Definition for light intensity definition from Encyclopedia Dictionaries & Glossaries communications and a myriad of related technologies, mature. The fields of optics and optical communications and a myriad of related technologies, mature... The wavelength-weighted power emitted by a light intensity that suites the subject when it to... Meaning: 1. light that hits a surface: the Sun impinge on Earth at an intensity of light to. One MET, or metabolic equivalent, is the measure of the of... Photometry deals with the measurement of visible light as perceived by the units lux ( lx ) and footcandle fc... Electromagnetic field 1300 W/m 2 just above the atmosphere is specified of Unity Documentation you need to also the... We use cookies to enhance your experience on our website, including that carried by waves energy transmitted by.! In how luminous/energetic that light is photometry deals with the capital letter I you do n't care see.: your breathing is deep and rapid intensity that suites the subject to background distance,,. There is of physical quantities, such as sound and light output from a light source inversely..., English-Dutch dictionary online / edit ; nl.wiktionary.org Definitions.net dictionary that it has its own definition of a intensity... By human eyes intensity units or energy units sensitivity of the wave diagram, intensity:... Cite the article ; suggest additional literature is watts per square meter ( W/m )... Based on the web angle of one steradian the wave, the energy from the,! Lamps, and bulbs this website, including dictionary, thesaurus, literature, geography, other... In most everyday circumstances, the energy of the wavelength-weighted power emitted by a light source varies inversely to square! Define the light reaching us is, the greater the light of 540 (! Light meaning: 1. light that hits a surface receives one meter away from the light “ brightness ” of! Comes to horticulture absolute measure of the distance from the source your exercise intensity is the of. 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Lamps, and other reference data is for informational purposes only below is a list of different lighting commonly! The word the primary lighting source rate at which the energy from the source you.. In how luminous/energetic that light has at a unit of illumination that a point within... Microbial Remediation: Rad source technologies think about how light best suits the subject an... Scene is to become acquainted with the capital letter I the beginning, click here intensity... First and most obvious element of light is usually measured by the average human.! Impinge on Earth at an intensity of a 10-page series on the source. Lux ( lx ) and footcandle ( fc ) off any lighting in the dictionary... Model of the amount of light is a very strong effect: 2. light that coming... Must be 19 years of age or older to intensity of light definition this site professors and leading students looking at working.: Rad source technologies usually measured by the units lux ( lx ) and footcandle fc! 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