Login | Register    German Italian Russian Spanish
Support Chat:  
New lanch opacity waterproof LED dash light     * What is Inside an LED     * What consumers should know about Solid State Lighting for general lighting applications     * Color Quality of White LEDs     * Solid State Lighting     * SSL-LED roadmap recommendations     * LED Patents Relationship     * Next Generation Lighting Initiative NGLI     * IP Explanation and Ratings     * Plugs and sockets around the world - Americas & Africa     * Plugs and sockets around the world - Asia & Australasia     * Plugs and sockets around the world - Europe     * The light-emitting diode or (LED)     * What is LED Lighting     * What is a fluorescent lamp     * What is high-bay lighting     * Why should I be concerned about the mercury content of lamps     * What is a fluorescent lamp ballast and what does it do     * What is the difference between an electronic and a magnetic ballast     * What does the numbering on a fluorescent lamp mean     * What are recommended illuminance values in the workplace     * What are the benefits of high-output T5 lamps     * What are recommended lighting levels for industrial buildings      * How can I calculate energy savings with efficient lighting     * How does dimming work in industrial applications     * How does an occupancy motion sensor work     * Why use fluorescent instead of HID in industrial applications     * What is task lighting and why should we use it     * What are the benefits of fluorescent lighting     * What type of lights does Light Corporation use in its fixtures     * LED lights with common specifications Explanation of terms      * LED color measurement - what is the chromaticity diagram      * LED applications knowledge and performance testing      * directly determine the quality of LED lights with good or bad      * led energy saving lamp-T5 Introduction      * led Applications - Residential Downlight      * High Power led lamp      * Frequently asked questions about LED lights      * LED advantage      * Led structure, luminescence principle, characteristics and application of light      * Brief Led Led production process and packaging process      * Led display procurement Mistakes      * Flexible Led lights with 8 Great Reasons bright      * energy-efficient Led tubes     * Led Light pale light of the helplessness and the heat      * 2011 Japanese Led / OLed Lighting Technology Show International      * Lampin into Led Light lighting     * Led energy-saving benefits     * Led energy-saving benefits      * Led development     * 2010 Led Light light trip to China      * Is relative to the fluorescent, LED fluorescent light with 10 advantages:      * Led lights have a very bright future     * led left     * welcome to lampinled      * LED tube      * SMD LED Strip Display     * Led strip     * Light sensor      * LEDTube was given     * LED lighting an efficient alternative energy      * LED drive circuit and boost      * OLED displays technique      * The basic principle of that      * LED display device      * HB - LED system design      * Intelligent lighting      * LED products introduced the reliability test     * The basic characteristics of LED lights      * LED the using life      * Led tube history      * LED AND CO2     * How to Choose the Right Light Bulb      * High Power LED Light Bulbs      * High Power LED Light Bulbs      * LED LIGHT F&Q     * Analysing Evolution of LED Lighting Design     * The bright future of LED industry development     * The application of Solar LED lights in municipal lighting     * New lanched multi-functional mobile warning light      * Have you ever missed the warning signs     * the warning lights     * New arrival strobe kit     * Emergency LED Lights     * Led Dash Lights     *  Mini Light Bar     * Police Light Bars     * Police Sirens     * Mini Light Bars 每 Small but Powerful     * LED Dash Lights 每 Why They*re Useful     * LED Lightheads 每 Benefits of Using LED Light Heads on Emergency Vehicles     *  LED Hide-a-Ways 每 How LED Hide-a-Ways Can Be Useful     * LED Traffic Directionals 每 Advantages of Using Led Traffic Directionals     * Amber Beacons 每 Necessary for Construction Vehicles and Tow Trucks     * Headlight Flashers 每 Types and Features of Headlight Flashers     * Taillight Flashers 每 How to Select and Use Taillight Flashers     * Emergency Vehicle Lights 每 Reasons to buy LED     * Police Lights 每 How They*ve Become More Effective     * Led Backup Lights 每 Safe and Efficient Backup Lights     * Truck Marker Lights 每 Recent Developments in Truck Marker Lights     * New LED flash light     * What are the Effects Police Vehicle Lights Have on Civilians Behavior?     * What Type of Police Lights LED are Available?     * Police Lights for Trucks      * What&s in a Cruiser? Beyond Police Lights and Sirens     * LED Warning Lights: Choose Police Lights to Make Your Car Visible     * LED LIGHTING     * Buy the Best Police Siren Today     * Buying LED strobe lights for an emergency vehicle     * Emergency Vehicles Lightbars Need To Be Seen     * Volunteer Firefighters can also benefit from LED Lights     * How Fire Emergency Lights Keep Communities Safe Using LED Technology     *  To ensure you get the very best police strobe lights imaginable, make sure to shop with parz industry.     * LED Emergency Vehicle Lights     * LED Emergency Lights     * Quality, Affordable Fire Lights     * The Purpose of Green Emergency Vehicle Lights     * PC detachable lampshade for led work light     * PC detachable lampshade     * shopping emergency vehicle equipment     * LED POLICE LIGHT BAR ADVANTAGES     * HOW TO CHOOSE AN EMERGENCY LIGHT BAR     * WHAT EMERGENCY LIGHT BAR OPTICS DO YOU NEED?     * how much room do you have emergency light bars?     * LED Emergency LIGHTING IS DURABLE, LONGLASTING, AND ABLE TO BE USED IN INCLEMENT WEATHER     * CHOOSE FROM MANY POLICE LED LIGHT BARS from parz industry     * LED TECHNOLOGY HAS CHANGED THE WAY EMERGENCY VEHICLES USE WARNING LIGHTS    
  Home > Knowledge > LED color measurement - what is the chromaticity diagram
        Chat us
LED color measurement - what is the chromaticity diagram


Lightness, hue and saturation as the three characteristics of color vision. The degree of brightness is bright; tone determined by the wavelength of color do not, such as the 700nm light color is red, 579nm light color is yellow, 510nm light color is green, etc.; saturation is the purity, not mixed with white, narrow-band single- color in the visual
Lightness, hue and saturation as the three characteristics of color vision. The degree of brightness is bright; tone determined by the wavelength of color do not, such as the 700nm light color is red, 579nm light color is yellow, 510nm light color is green, etc.; saturation is the purity, not mixed with white, narrow-band single- color, the visual is the high saturation of color. All of the light spectrum are the most Pure light color, add more white, more impure mixture of colors, looks more bright International Commission on Illumination (CIE) 1931 was enacted, a color map, with the composition of the three primary colors of a color in proportion to the provisions of this color, that is, the ratio of the sum by three primary colors to represent a color, and can be written as equation :

(C) = G (R) G (G) B (B)

Where, (C) on behalf of a particular color, (R), (G), (B) is the red, green and blue primary colors, R, G, B is the scale factor of each color, they are equal to 1 , ie R + G + B = 1, "C" refers to the match that same color in the visual, such as a blue-green can be expressed as:

(C) = 0.06 (R) 0.31 (G) 0.63 (B)

If the two primary colors mixed in the three factors, there is a zero; such as matching white, the R, G, B should be equal.

Any colors match the color with the ratio of the three primary colors to be provided, so that each color occupies in the chromaticity diagram to determine the location.
Chromaticity diagram:

Chromaticity coordinates of X-axis is equivalent to the proportion of red color;
Y-axis color coordinates is equivalent to the proportion of green color. There is no Z-axis color map coordinates (ie the proportion of blue color), because the proportion of factor X + Y + Z = 1, Z coordinate values can be calculated that 1 a (X + Y) = Z.

According to the Committee established by the International CIE1931 color is shown in Figure 31. Chromaticity diagram of the arc of the points on the curve is the spectrum of various colors on the spectral locus is the spectral colors of the chromaticity coordinates. Red band in the lower right graph, the green band in the upper left corner, blue-violet band at the bottom left of Fig. Line below the figure part, that the line connecting 400nm and 700nm, is not on the spectrum, from violet to red line. Near map center C is white, the equivalent of noon sun light color, the color coordinates X = 0.3101, Y = 0.3162.

There is a chromaticity diagram based on the color of S, S by a straight line drawn through C to the spectrum locus O point (590nm), S is the dominant wavelength of color 590nm, where the color of the spectrum S of the color (orange). C points out a color to the spectrum locus distance that its color purity, that is, saturation. The closer the more impure colors C, closer to the more pure spectral trajectory. S points in the path from C to 590nm spectrum at 45%, so it's color purity of 45% (color purity% = (CS / CO)? 00. From any point of the spectral locus a straight line drawn through the C arrived opposite spectrum trajectory point, the color of this line at both ends of mutually complementary color (dashed line). from any point of paragraph purple dashed straight line through the C trajectory that arrived at the opposite spectrum, the non-spectral color spectral color to use the complementary color to represent . that is the complement of the non-spectral color wavelength of color followed by a C word, such as the 536G, the complement of purple is a 536nm green color.

CIE1931 chromaticity diagram has great practical value, any color, whether light color or surface color, can be calibrated out of the chromaticity diagram, which describes the color of the simple and accurate. For example, the color in order to ensure proper identification of signs and traffic safety control, in CIE1931 chromaticity diagram provides a specific range, which applies to all kinds of warning signals and color coded flags. Another example is in CIE1931 chromaticity diagram, introduced by the two colors can be mixed with the resulting variety of intermediate color. If Q and S are added to the S line Q drawn between the various colors, such as the T point, the C T reached through the color spectrum of 552nm, 552nm wavelength can be seen that T, tone color, and the T in C and 552nm spectral color to see its position between the percentage purity.

In practical applications, such as color TV, color photography (latex treatment) or other color reproduction systems need to select the appropriate red (R), green (G), blue (B) three primary colors used are white and the complex colors selected (R), (G), (B) the position in a chromaticity diagram form a triangle. Should be made (R), (G), (B) to include a larger area of the triangle as far as possible, while (R), (G), (B) spectral line trajectory should be as close as possible to reproduce relatively saturated red, green, blue color

Need to purchase our
products? Please contact us
Contact your Customer
Care Centre now!
 Please complete this form to
 receive information about
 products commercialised in
 your country, services,
 prices, technical support..