188
9. Appendix
Term Description
CRI
on Illumination) Publication 13.3, is widely used for assessing the colour
rendering characteristics (the color appearance of objects) of light sources.
The CRI values are based on the color appearance of objects compared to
In the CRI, there are special color rendering indices (R1 to R14, and R15) and
the general color rendering index (Ra) which is the avaraged value from R1 to
R8.
last improved in 1974.
TM-30
Technical Memorandum TM-30 is, published by Illuminating Engineering
Society (IES), the method for evaluating light source color rendition including
LED lights.
CIE 224:2017.
The values are based on color appearance of objects with 99 color samples
In the TM-30, there are Fedelity Index (Rf) which is to express how the accurate
rendition of color is, and Gumut Index (Rg) to express what the average level of
saturation is.
SSI
and Sciences, Science and Technical Council, the method to express how close
a test spectrum is to a reference spectrum. It is the index (SSI) to evaluate the
similarity of spectrum of two light sources.
TLCI-2012
Television Lighting Consistency Index (TLCI), developed by EBU (European
Broadcasting Union), the method to evaluate the color rendition (the color
appearance of objects) under the reference light source with 24 color samples
and a mathematical model of a broadcast camera to ‘see’ the colors.
TLCI is suitable index to the evaluation of television lighting equipment.
TLMF-2013
Television Luminaire Matching Factor (TMLF) is, developed by EBU (European
Broadcasting Union), a new companion metric to TLCI,TLMF allows you to
compare two different lights to each other, rather than to a perfect reference,
and see if they will play well together.
TLMF is suitable index to the evaluation of televisioni lighting equipment.
Hue
etc. The unit of hue is a degree.
Sat
(Saturation)
Saturation is the index to express the intensity or chroma. The unit is from 0 to
100%, which means 0% is no saturation and 100% is maximum saturation.
HSI Color
Space
is composed of.
Because the C-800 measures the light source, it shows the hue and saturation
at 50% of intensity.
To Next Page
Loading...
