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Topic: Color temperature

Related Topics

Color Rendering Capacity

Color wheel

Color

White light

Color Rendering Index

Color model

Gamut

Metamerism (color)

National colors

Color grading

Color psychology

Political color

Light

Absolute scale of temperature

Incandescent light bulb

	OLYMPUS MIC-D: Physics of Light and Color - Color Temperature (Site not responding. Last check: 2007-10-20)
		The color temperature model is based on the relationship between the temperature of a theoretical standardized material, known as a fl body radiator, and the energy distribution of its emitted light as the radiator is brought from absolute zero to increasingly higher temperatures.
		Still further temperature increases, to a range above 3,000 K, transforms the color to a yellow-white (the color temperature of a tungsten filament), and at 5,000 K and above, a bluish-white color appears at the base of the pot (the color temperature of daylight).
		Although the color temperature differential between conversion of the 10,000 K and 3,200 K light sources is 1,000 K and 100 K respectively, the actual filtration difference is virtually the same when compared as mired units (10 versus 11 mireds).
	www.mic-d.com /curriculum/lightandcolor/colortemperature.html (4243 words)

	Olympus Microscopy Resource Center: Light and Color - Color Temperature: Interactive Java Tutorial
		The concept of color temperature is based on the relationship between the temperature and radiation emitted by a theoretical standardized material, termed a fl body radiator, cooled down to a state in which all molecular motion has ceased.
		Color changes are first apparent as the pot begins to glow a dull red when heated to a temperature above 900 K. As the temperature is increased to a range between 1,500 K and 2,000 K, the pot turns from yellowish to brighter red in color.
		Increasing the temperature even further, to a range above 3,000 K, transforms the color to a yellow-white (the color temperature of a tungsten filament), and at 5,000 K and above, a bluish-white color appears at the base of the pot (the color temperature of daylight).
	www.olympusmicro.com /primer/java/colortemperature/index.html (708 words)

	Olympus Microscopy Resource Center: Light and Color - Color Temperature
		The color temperature model is based on the relationship between the temperature of a theoretical standardized material, called a fl body radiator, and the energy distribution of its emitted light as the radiator is brought to increasingly higher temperatures, measured in Kelvin (K).
		As the temperature is increased to between 1500 and 2000 K, the pot (second to the left) turns a yellowish to brighter red color.
		As the temperature is further increased above 3000 K the color turns to a yellow-white (the third pot from the left), and at 5000 K and above (the pot on the far right), a bluish-white color appears.
	www.olympusmicro.com /primer/lightandcolor/colortemp.html (762 words)

	Kelvin Color Temperatures (Site not responding. Last check: 2007-10-20)
		Color Temperature is a measurement in Degrees Kelvin that indicates the hue of a specific type of light source.
		Visible colors are relative to the Color Balance (or White Balance) of a film stock or video camera, with the two most common fixed settings being 3200K Indoor color balance, and 5500K Outdoor (Daylight) color balance.
		In his honor, Color Temperatures are measured in degrees Kelvin, which are a variation on Centigrade degrees.
	www.3drender.com /glossary/colortemp.htm (313 words)

	Color Temperature \| Correlated Color Temperature \| Kelvin
		Color temperature is a simplified way to characterize the spectral properties of a light source.
		While in reality the color of light is determined by how much each point on the spectral curve contributes to its output, the result can still be summarized on a linear scale.
		Technically, color temperature refers to the temperature to which one would have to heat a theoretical "fl body" source to produce light of the same visual color.
	www.schorsch.com /kbase/glossary/cct.html (394 words)

	Color Temperature and CRI (Site not responding. Last check: 2007-10-20)
		Color temperature is the color appearance of the light produced by a lamp and the color appearance of the lamp itself.
		Color rendition is a measure of how the lamp influences the color appearance of the objects that are being illuminated.
		Color rendition is measured via a complex process on the Color Rendition Index scale ranging in value from 0 to 100.
	www.nolico.com /saveenergy/color_temperature_and_cri.htm (693 words)

	BetterPhoto Photography Articles - What Is Color Temperature?
		Color and temperature don't seem to have a direct relationship with each other, but light sources are often defined in terms of their color temperature and we speak of using the correct film with a particular type of light or setting the "white point".
		The relationship between color and Kelvin temperature is derived from heating a "flbody radiator" (think of this as a piece of fl metal) until it glows.
		The color emitted from a tungsten lamp in your living room is identical to the yellow-white glow when the flbody radiator temperature is approximately 3200 degrees Kelvin.
	www.betterphoto.com /article.asp?id=24 (1000 words)

	Color Temperature (Site not responding. Last check: 2007-10-20)
		The color temperature or chromaticity of a lamp is usually described in terms of its color temperature or, more accurately, by its "X" and "Y" coordinates on the CIE Chromaticity Diagram.
		Thus, color temperature of a light source is defined as the value of the absolute temperature of a fl body where chromaticity matches that of the light source.
		Correlated color temperature is the temperature of a fl body whose chromaticity most nearly matches that of the light source.
	tristate.apogee.net /lite/lflchro.asp (206 words)

	Color temperature - Wikipedia, the free encyclopedia
		The lamp's color temperature is the temperature in kelvins at which the heated fl-body radiator matches the hue of the lamp.
		In addition, the color temperature of the sky cannot be higher to the one of the sun, the main source of light, because the air is in thermodynamic equilibrium
		Matching the color sensitivity of the film to the color temperature of the light source is one way to balance color.
	en.wikipedia.org /wiki/Color_temperature (2258 words)

	Color Management Tutorial, Color Temperature
		Color temperature is the temperature in degrees Kelvin of a fl body (light emitted from a source), heated to produce a certain color of light.
		Color temperature and metamerism are important terms to understand and consider in a color managed workflow.
		Color temperature is a way to describe how blue or red a light source is, it is measured in degrees Kelvin.
	www.rit.edu /~med2823/colormanageproject/colortheory3.html (548 words)

	Television Production: Color Temperature
		Color temperature is also shifted as a result of traveling through haze or an overcast sky.
		Before leaving the subject of color temperature we need to mention a factor that also needs to be considered in reproducing video and film images-the inherent color temperature of the TV sets and color monitors that display the pictures.
		One of the reasons for the high color temperature in U.S. and Japanese sets is the consumer desire for bright, saturated colors, which are easier to create when there is a large blue component in the phosphor mix.
	www.cybercollege.com /tvp028.htm (1511 words)

	jason elias color temperature
		All the colors of visible light (the colors of the rainbow) get their different color - or frequency - from the fact that the light is traveling at different wavelengths.
		A specific Light's color on the scale is known commonly today as it's "color temperature." And this is simply done by matching it to the color of the glow and corresponding temperature of Kelvin's heated bar.
		This lower burning temperature leads to a lower color temperature - between 2800K and 2900K - which means the light has much more red, orange and yellow in it than that of sunlight (remember ROY G. Fluorescents on the other hand, at least the ones you find in most offices, are all screwy.
	www.jasonelias.com /writing/colortemp.htm (2211 words)

	handprint : color temperature
		Although any pair of colors opposite each other on a hue circle are complementary colors, the warm/cool contrast is a "metacomplementary" relationship — "the mother of all complementaries" — between warm hues (from yellow to red) as a group and the cool hues (from blue green to deep blue) as a group.
		The optimal color limits may be closest to the pigment limits along the orange/blue direction of the color space because this is the direction of variation in daylight phases.
		A background issue is that the maximum chromatic intensity of a surface color is uncoupled from lightness in warm colors, in the sense that increasing the luminance of a warm surface color does not significantly reduce its chroma (as happens in all green, blue, violet and magenta colors).
	www.handprint.com /HP/WCL/color12.html (11819 words)

	What is Color Temperature?
		Color temperature describes the color of a light source by comparing it to the color of a flbody radiator at a given temperature.
		Therefore it is said that the halogen lamp has a color temperature of 3000 degrees K- which is considered to be a warm color temperature.
		Though color temperature is not a measure of the physical temperature of the light source, it does correspond to the physical temperature of the flbody radiator when the color appearance is the same as the source being tested.
	www.goodmart.com /facts/light_bulbs/color_temperature.aspx (305 words)

	Color Temperature
		The color of light is measured along this scale, with the more orange color light being referred to as "warm white" and the whiter color light being referred to as "cool white".
		Warm color temperatures tend to enhance red and orange colors, adding a yellow tint to white items, and are typically used in homes and restaurants.
		Cool color temperature lights enhance blue colors, adding a bluish color to white items, and are often used in hospitals and offices.
	www.efi.org /factoids/colortemp.html (173 words)

	Color Temperature
		However, end users are able to adjust color temperature to create the image that is most pleasing to them.
		Effects of lights of different color temperature on the nocturnal changes in core temperature and melatonin in humans.
		Effect of illuminance and color temperature on lowering of physiological activity.
	www.causeof.org /colortemp.htm (1412 words)

	Color and Temperature
		In other words, the color of an object like a piece of red paper or a blue shirt is not related to its temperature.
		Thus, you have proven to yourself that the temperature of the pieces of cloth has nothing to do with their different colors The "heat" part of the electromagnetic spectrum is represented by wavelengths that are longer than any of the wavelengths that represent visible light.
		The faint yellow color that sunlight seems to have is due to scattering of light by the atmosphere, but if you were to observe the Sun from a spacecraft, or even a high mountain, it would appear more nearly white.
	www.newton.dep.anl.gov /askasci/phy00/phy00740.htm (858 words)

	Understanding Color Temperature What is Color Temperature
		Color Temperature is a term used to describe the color of a given light.
		It is based on the color given off by a glowing hot piece of platinum.
		Color temperature is always measured in degrees Kelvin.
	www.neon-lighting.com /articles/kelvin_colors.htm (122 words)

	Color Temperature of light sources
		OUTDOORS: the sun angle, and the conditions of the sky-clouds, haze, dust particles-raise or lower the color temperature.
		But this is true only within a limited voltage range and does not always apply to "booster voltage" operation, since certain bulbs will not exceed a certain color temperature regardless of the increase in voltage.
		Here are two depictions of the color temperature scale from 1000K to 10000K.
	www.digigo.com /color_temperature.htm (363 words)

	Understanding Color Temperature (Site not responding. Last check: 2007-10-20)
		When you look at the color wheel, you can see there is a warm side with red, orange and yellow and a cool side with green, blue and violet.
		Here's the way I distinguish colors in paints: The closer a color is to red-orange, the warmer it is; the closer to blue-green, the cooler it is. But it really depends on what direction you are going.
		Blue is recognized as a cool color on the spectrum, however, there are many variations of blue in paints, and some are warmer or cooler than others.
	www.nitaleland.com /articles/temperature.htm (353 words)

	Color Temperature
		In this painting, the woman’s figure is composed primarily of warm hues, while the landscape in the background is composed primarily of cooler blues and greens.
		This distinction in color temperature serves to place the figure in advance of the background.
		Those are the warm colors of the spectrum...they suggest noise, anger, danger, and intensity.
	facweb.cs.depaul.edu /sgrais/color_temperature.htm (385 words)

	efg's Color Reference Library -- Color Science / Color Theory
		This is the only color wheel like this in the world, it's original and made for the naturally realistic painting artist.
		Color Theory is a set of principles used to create harmonious color combinations.
		Color relationships can be visually represented with a color wheel—the color spectrum wrapped onto a circle.
	www.efg2.com /Lab/Library/Color/Science.htm (2141 words)

	1.3 Color Temperature
		Note that many colors (like green and violet) are not lying on this curve, thus have no associated color temperature.
		Color temperature plays also an important role in photography.
		By contrast, direct sunlight has a color temperature of about 5,400^&cir#circ; K. Photographic film can not compensate for the color of ambient light like our visual system does.
	www.mat.univie.ac.at /~kriegl/Skripten/CG/node10.html (173 words)

	Temperature of color - ArtPapa forum
		Temperature is extremely important in the layering method.
		This was a stunning learning experience of the impact of color temperature, and oh so immediate, and permanent.
		The warm color gives me an impulse to skip into the painting and give her a hug, and be lynched by the outraged mob.
	www.artpapa.com /forums/showthread.php?t=371 (825 words)

	Budget LCD Roundup April 2005
		Color temperature is one way we can describe the different types of white.
		By choosing a cooler temperature, all the colors will be off from what the game developers and filmmakers intended.
		The way to think about it is that on a chart of all possible colors, the 6500K color temperature is actually a line of white whereas D65 is a specific point of white.
	firingsquad.com /hardware/budget_lcd_roundup_0405/page6.asp (567 words)

	Photo Techniques Magazine - The Magazine dedicated to professional photographers interested in darkroom coverage, ...
		There are some colors that the “green” device can reproduce that are out of the gamut of the “red” device.
		No amount of “color management” will enable a printer to match a screen if the colors are out of the gamut of the print process.
		There are some colors the smaller gamut can reproduce that are outside the abilities of the device with the larger gamut.
	www.phototechmag.com /previous-articles/sample_article.htm (2178 words)

	Color temperature
		Color temperature is derived by heating a very fl
		be fooled by large amounts of one color in the scene.
		cannot sense colors that are lost in the noise of a weak signal.
	videoexpert.home.att.net /artic1/240ctemp.htm (2670 words)

	Color Temperature
		The color temperature of light used to expose the
		color temperature is usually regulated by adding filters
		The color or quality of light is altered by placing color
	www.tpub.com /content/photography/14209/css/14209_310.htm (469 words)

	Color Science
		The diagram below was created using a FORTRAN program that computes the red, green and blue color coefficients for hot objects.
		The program uses the CIE color matching functions and Planck's distribution function for the spectral radiance of a flbody.
		The CIE XYZ chromaticity diagram below was created using a FORTRAN program or Basic code that computes the red, green and blue color coefficients for each coordinate (x,y).
	www.midnightkite.com /color.html (217 words)

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