CRI (color reproduction index) is the measurement of how accurately a light source can reproduce colors. My question is: what gives a light a good CRI? What do manufacturers do to accomplish such thing?
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Every element and molecule interacts with all the different wavelengths of energy and light differently but consistently. Manufactures can look at known data from previous experiments to see what elements and molecules have which interactive properties with that frequency of light.
The different colors of light or soft tones vs more natural tones are all produced by the light bulb and different filaments or gasses in the light will create certain frequencies of light and not all of them. Manufactures can put certain elements around the light being produced to make only certain wavelengths come out allowing them to further control the type of light emitting into the room. Being able to make different colored light from the bulb so you can mix that light with the already natural light in the room in a way that makes the space look “best” improves the reproduction score. You are trying to produce a light that mixes with the light already their to reproduce the index of lightwaves you need. Different types of light bulbs and bulb covers give them some choices to mix with the natural/yellow whatever light already present in the room.
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