UPRtek MK350S PREMIUM User Manual page 37

7.2 General Attributes
Abbreviation
Full Name
GAI  Gamut Area Index
The Gamut Area Index is the ratio between the area of the eight standard colors (R1~R8) on CIE1976
coordinate measured by CRI and the area measured with the standard illuminant E(x,y = 0.333, 0.333).
The higher the value is, the more saturated and bright the color is.
TLCI 
Television Lighting Consistency Index
The parameter is defined by referring to European Broadcasting Union (EBU), which is used to evaluate
the light source under for television lighting.
IRR  Irradiance
It is the irradiance within the range of the wavelength specified in the specification.
S/P (SP-ratio)  Scotopic vision / photopic vision ratio
The sensitivity of human eyes varies with the light of different wavelength. It can get the data such as
illuminance based on the brightness function. However, the brightness function is different for human
eyes under high brightness and low brightness. Therefore, it defines the ratio of photopic vision under
high brightness and scotopic vision under low brightness, which is called S/P ratio.
BIN
To classify the chromaticity of LED, ENERGY STAR combines with ANSI C78.377 standard to classify
various classes and make uniform BIN types. So the user may distinguish the chromaticity of LED
products easily.
SDCM  Standard Deviation Color Matching
SDCM has the same meaning with that of Macadam Ellipse. The color within Macadam Ellipse (SDCM=1)
drawn on the coordinate can't be identified by human eyes.
TRANSMIT  Transmittance
The transmittance is defined as (the radiant flux transmitted/the radiant flux received)x100 %, based on
which the wavelength response can be obtained.

Rf / Rg TM30 Rf / TM30 Rg
It is a rating method proposed by IES for the performance of light source. Different from 8 standard colors,
it defines 99 standard colors to present the performance of various wavelengths. Rf represents the
similarity between the target light source and the reference light source under the standard colors. The
value 100 represents it is identical, while the value 0 represents great difference. Rg represents the
saturation difference between the target light source and the reference light source under the standard
colors. The value 100 represents the saturation is the same, while the value larger than 100 represents
saturation is higher, and the value smaller than 100 represents saturation is lower. Moreover, it could
identify the difference more obviously through the color vector diagram and the color tolerance diagram.
Flicker Idx  Flicker index
Flicker index= Area above the mean value /area below the mean value. Higher value represents obvious
flicker.
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7.2 General Attributes
Unit Abbreviation
Fpercent (Pct Flicker)
Flicker percent=(Maximum value-minimum value)/ ( Maximum value + minimum value). Higher value
represents obvious flicker.
SVM
SVM is an index used to quantify the flicker effect. Higher value represents obvious flicker effect.
Frequency
It is the flicker rate of the measured light, or the frequency shown per second.
W/m 2
Twave
It is the countdown of the flicker frequecny of the measured light, or the time of one flicker.
RMS(%)
Flicker RMS is the square root of the average of a set of squares of statistical data.
RMS(dB)
Flicker RMS is the square root of the average of a set of squares of statistical data.
Avg
Waveform average.
Min
Waveform minimum.
Max
Waveform maximum.
min/max (%)
%
Waveform minimum / maximum.
min/max (dB)
Waveform minimum / maximum.
Flicker Risk
The flicker risk model provides users with risk value of target light source according to IEEE PAR 1789-2015
flicker safety specification standards.
EB
The IEC62471 specification has blue light damage spectral function B (λ) built in. Determine major scope of
blue light damage to human eyes with this function and factor in the light source spectral irradiance to obtain
blue light radiation damage irradiance.
Kbv
Based on Kbv = EB/E (blue light hazard radiance, EB, and total luminance of the light source) to analyze
individual light source spectrum radiation and level of blue light injury on human eyes.
Full Name
 Flicker percent

Stroboscopic Effect visibility Measure
 Flicker Frequency
 Flicker Cycle

Flicker square root

Flicker square root

Blue light weighted irradiance
 Blue light hazard efficacy of luminous radiation
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Unit
%
Hz
ms
%
dB
V
V
V
%
dB
W/m 2
W/lm