At present, there is no general machine vision lighting system that can cope with different inspection requirements. Therefore, for each specific case, it is necessary to design an adaptive lighting device to achieve the best results. There are many types of light sources for machine vision, and each type of light source has multiple models. After the category is determined, it is necessary to select the type. The following introduces the selection methods of different types of light sources.
1. Light sources of different colors
Visible light sources have white, blue, red, green, infrared, ultraviolet and other colors. Each color has a different wavelength and can also be used in different scenarios.
Introduction to applicable scenarios of various color light sources:
White light source (W)
White light sources are usually defined by their color temperature. The color with high color temperature is blue (cool color, color temperature >5000K), and the color with low color temperature is red (warm color, color temperature <3300K). It is known as an intermediate color between 3300 and 5000K. Wide applicability of white light source &