Confocal microscope realizes high-resolution nano-microscopic imaging measurement at large inclination angles

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Confocal microscope realizes high-resolution nano-microscopic imaging measurement at large inclination angles [Copy link]

The confocal microscope used in the field of materials science is based on the principle of optical conjugate confocal microscopy. Its ultra-high spatial resolution and three-dimensional imaging capabilities provide a completely new perspective and solution.

Working Principle
The confocal microscope focuses the laser beam at the focal point of the sample, performs rapid point scanning on the sample surface, obtains clear focus at different heights layer by layer, and reconstructs a 3D true color image for analysis.

Instrument structure
The confocal microscope consists of four main parts: 1. Microscope optical system. 2. Scanning device. 3. Laser light source. 4. Detection system. The entire instrument is controlled by a computer, and the operation switching between each component can be conveniently and flexibly performed in the computer operation platform interface.

Measurement and analysis software for integrated operation

(1) Measurement and analysis are operated on the same interface without switching. The measurement data is automatically counted, realizing the function of fast batch measurement.
(2) The visualization window allows users to observe the scanning process in real time.
(3) Combined with the automated measurement function of the custom analysis template, the measurement and analysis process of multiple areas can be automatically completed.
(4) Five functional modules are complete: geometric analysis, roughness analysis, structural analysis, frequency analysis, and functional analysis.
(5) One-click analysis, multi-file analysis, free combination of analysis items saved as analysis templates, batch sample one-click analysis, and data analysis and statistical chart functions are provided.
(6) More than 300 2D and 3D parameters can be measured based on ISO/ASME/EUR/GBT and other standards.

Features and Application Analysis
The biggest feature of the confocal microscope is that it only acquires a thin layer from the sample during imaging, and the remaining light signal is eliminated, thereby eliminating the depth blur phenomenon and obtaining ultra-high spatial resolution. This feature enables the confocal microscope to have a better imaging effect on products with large slopes. It is generally used for microscopic morphology detection of slightly rough workpiece surfaces and analysis of parameters such as roughness, pit defects, and grooves.

The VT6000 confocal microscope is based on a spinning disk confocal optical system, combined with a high-stability structural design and a 3D reconstruction algorithm to form a measurement system. The height display resolution reaches 0.5nm, and it has a strong vertical depth resolution capability. For example, in the photovoltaic industry, it can not only quickly detect the grid line, but also reconstruct the three-dimensional morphology of samples with low surface reflectivity and complex morphology such as the velvet surface of the solar panel.

In addition, it also has the function of contour dimension measurement to characterize the microscopic morphology.

Application fields
In the field of materials science, confocal microscopy can be used to observe the three-dimensional structure and characteristics of materials. It can measure and analyze the surface profile, surface defects, wear, corrosion, flatness, roughness, waviness, pore gap, step height, bending deformation, processing conditions and other surface morphological features of various products, components and materials.
Through the ultra-high resolution three-dimensional microscopic imaging measurement of confocal microscopy, the surface morphology, surface structure and nano-scale defects of the material can be clearly observed. This is of great significance for understanding the microscopic properties of materials and material engineering design.