Colour rendering index (CRI) and its meaning depending on the place of application of the luminaire
And its importance depending on the place of lamp application (halls, warehouses, offices, public buildings, beauty salons, makeup and tattoo studios, HoReCa, etc. The essence of this parameter. What it affects. Why is it so important?
Colour rendering index (CRI) and its meaning
The colour rendering index CRI is one of the key lighting parameters. The Colour Rendering Index determines how well the colors of illuminated objects are perceived. CRI is expressed on a scale of 0 for monochrome light to 100 for white light. The higher the value, the better the colors are, and the illuminated items look more natural. CRI equal to 100 means that objects viewed in this light have colors as if they were illuminated by sunlight. The lower the value, the more the hues are distorted and unnatural.
The impact of CRI on eyesight and well-being
Faithful color reproduction can be important not only in the work where accurate color reproduction is important. The CRI factor also affects the human psyche. In a room with low color rendering, we may feel worse because unnaturally lit objects make our eyes tire faster.
The meaning of the CRI indicator depending on the type and destination of the installation place
The CRI indicator should be properly selected with regard to the intended use of the installation site. In offices and in places where details are important, the color rendering index should be min. 80. However, if we wanted to illuminate a work of art well, the CRI index of 95 should be used.
In general, lighting with a high CRI index should be used wherever accurate color reproduction is important to the quality of the work performed. These are for example:
- dental offices
- hairdressing and beauty salons
- tattoo studios
- printing companies
- clothing stores
- DIY stores
- art galleries.
Recognizing the impact of the color rendering index on well-being, lighting with a high CRI should also be used in public facilities - offices or educational institutions. Such lighting affects the well-being and good condition of our eyes.