Sheetak - Cooling at your Fingertip 5/24 LB

Type

Browse by Letter

Lambda Research Optics, Inc. - Beamsplitter Cubes

PI Physik Instrumente - Semiconductor Applications 5/24 ROS HP

28 terms

Photonics Dictionary

Clear All Filters x chromaticity x
chromaticity

The qualities of color associated with hue and saturation, but not brightness or lightness.

chromaticity coordinates

Proportions of standard primaries (tristimulus values) required for a color match; ratios of each tristimulus value of a color to their sum. In the CIE colorimetric system, designated X, Y and Z.

chromaticity diagram

The plane diagram produced by plotting one of the three chromaticity coordinates (X,Y,Z) against another. The most common diagram is the CIE (X,Y) diagram, which is plotted in rectangular coordinates.

CIE coordinates -> chromaticity coordinates

Proportions of standard primaries (tristimulus values) required for a color match; ratios of each tristimulus value of a color to their sum. In the CIE colorimetric system, designated X, Y and Z.

achromatic point

Location on the CIE chromaticity diagram which produces the color white for a given light source at a specified temperature.

blackbody locus

With respect to a chromaticity diagram, this is the locus of points that represent the chromaticities of blackbodies possessing different color temperatures.

chrominance

The difference between any color and a reference color having equal luminance and a specified chromaticity.

complementary wavelength

Also called complementary dominant wavelength. On a chromaticity diagram, the wavelength on the spectrum locus that lies on the same straight line as the achromatic point and the sample point for a...

correlated color temperature

Temperature of the blackbody having chromaticity nearest to that of the test source on a specified chromaticity diagram.

display primaries -> receiver primaries

Also known as display primaries. Colors formed by a television receiver that are of constant chromaticity and variable luminance, and that, mixed in certain proportions, form other colors. Red, green...

distribution temperature

Temperature of the blackbody having a spectral power distribution approximately proportional to the test source at all wavelengths; it follows that the two have the same chromaticity.

equiluminous colors

Colors differing only in chromaticity but not in luminance.

excitation purity

On the CIE chromaticity diagram, the distance from the achromatic point to the sample point, divided by the distance from the achromatic point through the sample point to the spectrum locus or purple...

isochromatic

Having the same chromaticity or color.

isotemperature line -> correlated color temperature

Temperature of the blackbody having chromaticity nearest to that of the test source on a specified chromaticity diagram.

laser output

The laser output refers to the generated and emitted light produced by a laser system. This output is characterized by several key properties that distinguish lasers from other light sources. These...

laser

A laser, which stands for "light amplification by stimulated emission of radiation," is a device that produces coherent and focused beams of light through the process of optical amplification based...

Liebmann effect

The visual perception of contrasting forms is more difficult if the forms have the same luminance but different chromaticities, than if the forms have the same chromaticity but different luminances.

maximum luminous efficiency

The greatest luminosity possible for a specified chromaticity.

maximum luminous reflectance

The greatest luminous reflectance possible for a specified chromaticity.

maximum luminous transmittance

The greatest luminous transmittance possible for a specified chromaticity.

NTSC triangle

The triangle in a chromaticity diagram joining the chromaticities of the NTSC phosphors, and containing all chromaticities which can be produced by additive mixture of their light.

Planckian locus

Locus of points on a chromaticity diagram that includes the chromaticities of blackbody radiators.

purity, excitation -> excitation purity

receiver primaries

reference point

The point of a chromaticity diagram that represents the chromaticity of a reference stimulus.

sample point

On a chromaticity diagram, the point that denotes the chromaticity sample.

spectrum locus

On a chromaticity diagram, the line on which fall the chromaticities of the pure spectrum colors.

Photonics Dictionary

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.