Language HOME ABOUT LuxMV PRODUCTS APPLICATIONS SERVICE SUPPORT PRESS CONTACT US Go! News ARTICLE What Optical Knowledge Is Used In Machine Vision? Importance of light source in machine vision Highlight measurement features and simplify image processing algorithms; overcome interference from ambient light and improve image signal-to-noise ratio; improve the accuracy and efficiency of the visual system. The law of rectilinear propagation of light Three lines are coplanar: incident light, normal line, and reflected light; Two lines are separated: angle of incidence = angle of reflection; ‍‍‍The light path is reversible. Specular reflection and diffuse reflection Specular reflection: smooth surface, bright, related to angle, does not reflect color; Diffuse reflection: rough surface, darker, not related to angle, reflects color. Refraction of light When light is incident obliquely from one transparent medium to another transparent medium, the propagation direction generally changes. This phenomenon is called refraction of light; The refraction of light, like the reflection of light, occurs at the junction of two media, but the reflected light returns to the original medium, while the refracted light enters another medium. The penetrability of light and the change of wavelength Short wavelength: weak penetrating ability, strong scattering ability, high refractive index; Long wavelength: strong penetrating ability, weak scattering ability, low refractive index. Polarization characteristics of light The polarizer is installed on the lens, and the polarizer is installed on the light source. The combination of the two can eliminate reflections or meet some special detection requirements; Polarized light principle: In the polarized light phenomenon, mirror reflection will not change the polarization direction of light, but diffuse reflection will change the polarization direction of light. Chromatography of light Why we can see different colors: The colors we see are actually the corresponding colors of light reflected by the white light source after it hits the object; Three primary colors: red, green, and blue; Complementary colors: colors that are opposite to each other in the color wheel. Objects absorb light of wavelengths that are complementary to their colors. 2025-07-26 09:40:51 << Previous Page Next Page>> ARTICLE Press HOT ARTICLE (LuxMV)AOI Applications Light L LuxMV SWIR Light Applications New Product For Concave-Convex Condenser Lens For Mounting On 4 Generation High Uniformity L x ABOUT US LuxMV (Lighting & Tech Specialist) is a leading organization in developing and manufacturing machine vision lights for the advanced lighting industry. We supply a broad range of solutions in light, lenses and cameras. PRODUCT Machine Vision Light Custom Light Controller Fiber optic light Camera Lens Accessories CONTACT US info@luxmv.com QUICK CONTACT Send Message Copryright 2019 LuxMV -