Connecting To Li-180 Spectrometer Software; Variable Definitions - LI-COR LI-180 Manual Del Usuario

3.2 Connecting to LI-180 Spectrometer Software

Install LI-180 Spectrometer Software
Visit the LI-COR Support Site to download the LI-180 Spectrometer
software on your PC (www.licor.com/180support). Then, connect
it to the spectrometer using the USB cable to control the
instrument and save data on your PC.
LI-180 Spectrometer
Install file
Set USB PC connection mode
Select "OPTION". Select "USB mode". Select "PC connection"
Measure
USB connection
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English
and press "Yes".
LI-180 Spectrometer
PC software

4.1 Variable Definitions

Abbreviation Full Name
CCT
Correlated Color Temperature
The color radiated by a black-body radiator under different temperatures.
CCT has the color that is the closest to the ideal black-body radiator.
CRI (Ra) Color Rendering Index
The average value of R1 ~ R8, where R1 ~ R8 represent the value of eight
standard colors as defined by Commission International de l'Eclairage (CIE).
A CRI value of 100 indicates the best quality of light for rendering color
appearance, while a value of 0 indicates the worst quality of light for
rendering color appearance.
R1, R2, ... , R15 Color Rendering Index Varieties
Represents the quality of the light source with the indexes corresponding to
15 standard colors, including: R1: light grey-red; R2: dark grey-yellow; R3:
saturated yellow-green; R4: middle yellow-green; R5: light yellow-green; R6:
light blue; R7: light purple-blue; R8: light red-purple; R9: saturated red; R10:
saturated yellow; R11: saturated green; R12: saturated blue; R13: white skin
color; R14: leaf green; and R15: yellow skin color.
Lux Illuminance
Light flux received by each unit area.
λp Peak Wavelength
Wavelength with the highest intensity in the measured spectrum.
λpV Peak Wavelength Value
Intensity of the peak wavelength in the measured spectrum.
λd Dominant Wavelength
Used to express the color of the measured light. May be hybridized by the
spectrum color of the wavelength and the standard illuminant E(x, y = 0.333,
0.333).
I-Time Integration Time
Integration time measured by the spectrometer.
x, y, X, Y, Z CIE1931 Chromaticity Chart Color Coordinates
Light color with 2-dimensional plane coordinates (x, y) as defined in CIE
Chromaticity Chart CIE1931.
u',v' CIE1976 Color Coordinate
Light color with 2-dimensional plane coordinates (u', v') as defined in CIE
Chromaticity Chart CIE1976.
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Unit
K
lx
nm
2
mW/m
nm
ms