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for Machine Vision for Machine Vision

for Machine Vision

Technical Guide

Introducing our various lighting techniques using LED lightng system.

CCS Glossary

Introducing technical terms of CCS lighting systems

Illuminance
Representational of the luminous amount of the surface of an object receives from a light source. It is given by the illumination of light (lux) fallen on a subject per unit area. The unit is lx(lux). Illumination (lx) = light flux (lm:lumen)/area (m2)
Luminance
The Luminous intensity represents the brightness of an object, and on the other hand, the brightness corresponds to the brightness of a light source taking into consideration its direction. The distance is not related to the measurement. The unit is cd (candelas)/m2.
Relative luminous efficiency(of a standard observer),
Standard relative luminosity
The International Commission on Illumination (CIE) have set a standard on the wavelengths that can be perceived by the normal human eye. The spectrum luminous efficiency is dependant on this standard
CCD luminance
The brightness is represented by the intensity of a light source and the luminosity of a light source can be distinguished by the difference of the lightness/darkness. The CCD brightness assumes by a relative unit how much brightness is felt when a human eye is substituted by a CCD camera with a sensitivity characteristic different from that of the human eye. On the other hand, the cameras setting of the CCD and optical system used for measurement have influence over the absolute value.