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  • Human Eyes to Distinguish Colors

    Human Eyes to Distinguish Colors

    The color difference unit, NBS, is derived from the unit of color difference formula which is established by Judd-Hunter. In 1939, the American Bureau of Standards adopts this color difference formula...

  • The Color of Objects

    The Color of Objects

    There are three major elements to perceive color: light, object and observer. Any change of these three elements will influence the observers color perception. When the light source and the observer d...

  • Colorimeters Versus Spectrophotometers

    Colorimeters Versus Spectrophotometers

    Understanding the types of instruments available for measuring color is important when choosing the instrument to purchase or use for your application. The terms colorimeter and spectrophotometer caus...

  • What is a colorimeter?

    What is a colorimeter?

    A colorimeter is a light-sensitive instrument that measures how much color is absorbed by an object or substance. It determines color based on the red, blue, and green components of light absorbed by ...

  • Color Fastness

    Color Fastness

    Color fastness is a term used in dyeing of textile materials means resistance ofcolorto fading, i.e. it refers to the notion of an object having color that retains its original hue without fading or r...