Colorímetro

November 1, 2021

When measuring colors, it is important to do it objectively, using special instruments for this purpose, such as the Colorimeter .

Measuring dimensions or quantities is essential to develop many things in the environment. The same happens with color, which is present in everyday life, but evaluating color with the naked eye is not entirely effective.

The human eye is not able to observe some specific colors due to some factors such as the environment or light, but with this measuring instrument you will obtain exact results.

What is a Colorimeter?

A colorimeter is a device used to measure and analyze colors . Today there are colorimeters made and calibrated for specific uses. For example those of transmission that can calculate the concentration of a chemical component.

In the same way, there are other colorimeters that analyze the color of opaque products such as plastics, paints, metals, ceramics, among others. And some that are used to adjust light sources or calibrate monitors.

What is the Colorimeter for?

The colorimeter is used to know the numerical value of the color and determine the intensity and shades of a color.

It is also useful for comparing the measurements of a color with other calculations that have been collected. This option is very useful for industries that produce the same products such as cosmetics, paints, among others, allowing them to maintain a quality standard in the results of their production.

How does the Colorimeter work?

Although this seems to be a low-need measuring instrument, it is important that you know that it is not, the determination or quantification of colors is one of the processes with the greatest impact in colorimetry.

The operation of the Colorimeter is quite simple, through a light sample; It can be by reflection or by emission, the value can be determined taking into account standard lighting.

This type of instrument is much more feasible to use for color quantification, due to its practicality and of course its low cost.

In general terms, the colorimeter has the ability to quantify the color and compare it with another, the result that is generated as a numerical value assigned to the color, allows the color to be properly classified on the color scale.

Using the Colorimeter

Color measurements have a myriad of uses such as computerizing a person’s color appreciation, helping to develop electronic equipment, tablets, phones, and computers, and reproducing colors in the automotive industry.

Likewise, it is used by researchers to measure colors and analyze any chemical that contains chromophores. Although there are other methods to measure color such as spectrometry, the readings obtained from colorimeters are more relevant.

Color readers can also be used as monitors in quality control in a food, toy, textile, cosmetic production company and many more.

Currently, colorimeters are constantly used in the graphic industries and digital printing, as labels for containers, packaging, advertising, helping to determine the quality of the presentations.

Colorimeter Types

As with other laboratory materials, in the case of the colorimeter, there are several types of this measuring instrument. Next I will tell you about them:

  • Colorímetro Tristimulus

Tristimulus colorimeters are used to measure color in digital images , since their measurement is carried out on the colors transmitted by light sources, such as monitors, lamps and screens.

After collecting several such readings, the colorimeter profiles and calibrates the output devices . The quantities that are measured can be approximated to the values ​​given by the three primary colors, which are compared with the color that is being analyzed.

  • Densitómetro

The densitometer is responsible for measuring the density of the light that passes through a frame. This density is characterized by being the level of darkness in the film or print.

When the image is printed, colored pigments or ink naturally block light. Professionals in the graphics industry use densitometers to monitor colors at various steps in a printing process.

  • Spectroradiometer

This type of apparatus works to quantify the spectral power distribution emitted by the light source. That is, it measures the intensity of the color.

They are used to analyze the lighting in a production, as well as to carry out quality control. Another use that is given to this device is to evaluate the light source that the customer receives and the calibration of the liquid crystal displays that are made for televisions and laptops.

  • Spectrophotometer

It is responsible for measuring the reflection properties of a color . Using for this functions of wavelengths of light.

This instrument does not need human evaluation and is more complex than a normal colorimeter. The use of this apparatus is primarily based on color development and formulation, industry research and development.

Each colorimeter has a specific purpose, although all were developed to measure color, each one does so in specific processes and environments, for different applications.

Colorimeter Features

Although there are several types of colorimeters, all have essential characteristics that make them suitable instruments for the analysis and calculation of color. Let us know in detail, what are the characteristics of the colorimeter:

  • Their main objective is the exact and precise reception of the color . To do this, they collect the measurements based on the CIELAB values, so that they select the data objectively.
  • The type of illuminant with which you take measurements has a lamp that projects the light beam on the surface of an object so that it perceives the color.
  • The operation of a colorimeter is based on the positioning of its measurement objective and that it fits on the sample that was taken by projecting a beam of light.

Another feature of the colorimeter is that it allows you to compare colors , taking different samples as a reference and establishing what the default values ​​are.

Importance of the Colorimeter

The colorimeter is an instrument that is used to identify both the color and its hue, as well as to know exactly which color is being observed.

This instrument is very important, since it also allows to absorb the solution that has some color through the frequency of the light.

Thanks to the colorimeter, it is possible to quantify a color to later compare it with another. After determining the numerical value of the color that is being analyzed, it can be entered into the color scale in order to catalog it.

This entire process of analysis and measurement of color is based on the definition of color as color, the perceptible aspect of an electromagnetic spectrum that the eye can capture and interpret.

Each color has variants, nuances and intensities that allow captivating a wide tonality of colors, spaces and textures, a fact that since ancient times has captivated the human being interested in imitating and representing the colors of their environment, an activity that was perfected thanks to the fact that be able to measure the color and then standardize it.

Measuring colors through the Colorimeter has become a fundamental element for different industries. Your results and your accurate data have a positive impact on developing better products today.

Just as the colorimeter there are many other laboratory materials that facilitate the work of researchers and scientists from different areas, I invite you to get to know them and take advantage of the opportunities they offer you.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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