The core components of a spectral confocal microscopy system primarily include five key elements: an industrial camera, an APO tube, a point spectral confocal sensing module, an APO objective lens, and a coaxial light source. This combination enables the performance of various high-precision measurement tasks on a non-contact basis and represents the mainstream optical solution in the field of precision inspection today.

Main Components of a Spectral Confocal Microscopy System:

• The industrial camera captures clear microscopic images and outputs high-resolution image data, providing a stable foundation for subsequent visual analysis and measurement assistance;

• The APO lens tube, serving as the core transmission channel of the optical path, effectively corrects various optical aberrations, ensuring imaging clarity and color fidelity across the entire field of view while preventing blurring and distortion in peripheral areas;

• The point-spectral confocal sensing module serves as the measurement core of the entire system. Based on the principle of wavelength encoding, it converts positional information at different heights into corresponding spectral signals, enabling high-precision distance decoding at the nanometer level, unaffected by ordinary surface reflections or color variations;

• The APO objective lens plays a critical role in dispersion and focusing. Through a specialized combination of optical materials, it achieves controlled axial dispersion, allowing light of different wavelengths to be precisely focused at different heights along the optical axis, thereby creating a continuous sequence of spectral focal points;

• The coaxial light source provides uniform and stable vertical illumination, ensuring consistent light reflection from the measured surface and preventing excessive local reflections or side shadows from affecting measurement results. It is suitable for a variety of special surfaces, including mirrors and transparent materials.

Based on this proven hardware architecture, the spectral confocal microscopy system can measure a wide range of precision parameters, including height, flatness, step height, contour, and thickness. It also supports high-speed automatic focusing, eliminating the need for traditional mechanical scanning focus mechanisms, which significantly improves inspection efficiency and ensures that the sample is not subjected to any contact damage throughout the entire process.

The Application Scenarios Cover Multiple Fields That Require Extremely High Precision:

1. In materials science, it is used to observe the microscopic surface topography of new materials and analyze surface roughness and microstructural features;

2. In biomedical research, it enables non-contact observation of microscale biological samples and non-invasive 3D imaging of living cells;

3. In semiconductor inspection, it performs high-precision quality control on the microstructures of wafers and packaged devices, identifying minute defects such as gold wire bonding issues and lead step-offs;

4. In the field of micro- and nanotechnology, it provides micrometer- or even nanometer-level parameter verification for various precision-machined parts, making it an extremely versatile optical measurement solution for current industrial precision inspection and scientific research applications.