Question
Download Solution PDFWhich lamp has the best Colour Rendering Index (CRI)?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- The most useful measure of a light source's color characteristics is the colour rendering index (CRI).
- CRI is a measure of a light source's ability to show object colors "realistically" or "naturally" compared to a familiar reference source, either incandescent light or daylight.
- The color rendering index (CRI) is measured as a number between 0 and 100.
- At zero (0), all the colours look the same.
- A CRI of 100 shows the true colors of the object.
- Incandescent and halogen light sources have a CRI of 100.
- Typically, light sources with a CRI of 80 to 90 are regarded as good and those with a CRI of 90+ are excellent.
- Higher the CRI, the better the color rendering capacity.
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