As a new kind of high precision measuring equipment, spectral confocal displacement sensor has the characteristics of non-contact, high precision, high stability, large Angle and high sampling frequency. So as a new measurement technology, what is the principle of spectral confocal:

A beam of white light (or a mixture of multi-wavelength light) passes through a small hole, through the lens to focus the different wavelengths on the optical axis, dispersively forming a rainbow distribution band, shining on the sample, and some of the reflected light is reflected back. (as shown on the left of the figure below) the light that shines at the intersection of the optical axis and the surface of the object passes through the splitter component and shines through the aperture to the spectral analyzer. According to the wavelength calculation, the distance between the lens and the measured object can be obtained (shown on the right in the figure below).

As a new non-contact high-precision measurement equipment, the accuracy can reach sub-micron level, such as can be used to measure the thickness of transparent objects, as well as contour, displacement, height, 2d3d curved surface arc scanning, opaque object thickness measurement, vibration measurement, deep hole, liquid level measurement, micro-groove, flatness measurement and so on.

In the mobile phone industry, such as curved cover glass detection, mobile phone motherboard detection, key size or height detection, chip detection, camera module detection, mobile phone camera module detection and so on. Semiconductor industry, chip pin flatness detection, wafer depth and thickness detection. Glass measurement, such as thickness, curvature and other products requiring high precision.

After listening to the share of Liyi Xiaobian, I believe you have a general understanding of spectral confocal, more about spectral confocal consultation welcome to pay attention to the company.