Principles and methods of confocal micrometry
Confocal microscopy is the abbreviation for Laser Confocal Scanning Microscope LCSM, which microscopically imaged using mainly 3D captured imaging techniques, giving it a high 3D image resolution. These are achieved by constructing micrographs.
Principles of Confocal Microscope Imaging
Confocal microscope device is placed on the conjugate surface of the focal plane of the object to be measured two small holes, one of which is placed in front of the light source and the other in front of the detector, the image obtained is light from one focal plane is captured by focusing through a pinhole digital camera, and through the sequence of images of the different focal planes that have been accumulated, a complete 3d image is compiled using software.
The confocal microscope system presents magnified images with higher detail than conventional optical microscopes. At the same objective magnification, the confocal microscope presents images with sharper and finer morphological details and higher lateral resolution. As a tool for micro-nano detection, confocal microscopy is different from white light interferometry in many ways. If you use a word to describe it, then white light interferometry is a "literary", while confocal microscopy is a "martial". White light is good at sub-nanometer ultra-smooth surface detection, the pursuit of detection value accuracy; while confocal is good at micro-nanometer rough contour detection, although in the detection of resolution is slightly inferior, but can provide colourful true-colour images for easy observation.
Confocal microscope to confocal technology as the principle, combined with precision Z scanning module, 3D modelling algorithms, etc., can measure all kinds of including from smooth to rough, low reflectivity to high reflectivity of the surface of the object, from nano to micron level workpiece roughness, flatness, micro-geometric contours, curvature and other parameters of a variety of products, components and materials surface surface of the surface contours, surface defects, wear and tear, corrosion conditions, Measurement and analysis of surface features such as flatness, roughness, corrugation, pore clearance, step height, bending deformation, machining and other surface features.
