In the field of precision optical manufacturing, a speck of dust at the micrometer level is enough to ruin an expensive coating process.

In the modern optical manufacturing field, aspheric lenses, as the core components of high-end imaging systems, their cleanliness directly determines the imaging quality and performance of the final products. A seemingly insignificant speck of dust or a barely perceptible fingerprint can cause fatal defects during the coating process, leading to the scrapping of the entire lens. In response to this industry pain point, the VGT-1509FH ultrasonic cleaning machine for coated mirrors from Vegute was born and has become a key device for ensuring the yield of coating.

Application and Cleaning Challenges of aspheric Lenses:

Aspheric lenses, as a type of precision optical component, can effectively reduce aberration problems such as spherical aberration and astigmatism in optical systems due to their unique curved surface design, and thus play a crucial role in the modern optical field. From the 3D structured light facial recognition system of mobile phones to the sensing lenses of driverless cars, and then to the high-definition imaging lenses in the field of security, the application scope of aspheric lenses is constantly expanding.

These high-end application scenarios impose extremely strict requirements on the imaging quality of lenses. Even the slightest contamination may affect the performance of the entire system.

In optical manufacturing processes, coating is a crucial procedure, and the cleaning treatment before coating is even more of vital importance. According to the search results, the typical process flow of optical components (mirrors) includes steps such as "lens raw material - cleaning - vacuum coating - cleaning - coating".

If there are any dirt spots or water accumulation points on the surface of the workpiece, it will lead to the failure of the coating. For this reason, ultrasonic cleaning machines specifically designed for optical components have become indispensable equipment for ensuring the yield of coating.

Technical features of VGT-1509FH：

The VGT-1509FH coated mirror ultrasonic cleaning machine from Weigute is a professional device specially designed for cleaning high-precision optical components. This device integrates 15 functional slots and is equipped with multiple high-end configurations such as a throwing system, a circulating filtration system, an automatic constant temperature system, an ultrasonic cleaning system, and a timing system.

The cleaning principle is based on the "vaporization phenomenon" impact generated by ultrasonic high frequency and the continuous up and down movement of the system itself, which increases the friction of the liquid, enabling the dirt on the surface of the workpiece to fall off rapidly and achieving the purpose of high cleanliness.

The cleaning cycle of this equipment is between 3 and 11 minutes and can be flexibly adjusted according to the actual production progress.

This highly efficient cleaning capacity is attributed to its elaborately designed throwing mechanism - the throwing motor drives the linear slider to move up and down through an eccentric wheel, ensuring the continuity of the throwing movement and reducing the frictional resistance of the throwing movement, thus enabling the throwing frame to drive the washing basket to move up and down in the cleaning tank.

Compared with conventional cleaning equipment, the VGT-1509FH from Vegute has also taken noise control into special consideration. Under the condition of ensuring that the ultrasonic effect is not affected, the ultrasonic sound is controlled within a certain range, effectively improving the labor efficiency of employees.

Importance in optical manufacturing:

In the optical manufacturing process, although the cleaning stage is not conspicuous, it is of vital importance. Without thorough cleaning in the previous process, the subsequent coating process cannot achieve the expected effect. The VGT-1509FH from Vegute is specially designed for pretreatment before coating. It has solved multiple pain points in the cleaning of optical components: on the one hand, the equipment can remove various types of dirt such as particulate contaminants, grease, and fingerprints from the surface of lenses; On the other hand, through slow drawing dehydration technology and steam bath drying technology, it is ensured that there are no water stains or residues on the surface of the workpiece.

For high-precision aspheric lenses, maintaining surface integrity is another challenge in the cleaning process. Overly intense cleaning methods may damage the fine structure on the lens surface, while the VGT-1509FH from Vigot achieves precise ultrasonic frequency control and a polishing system. Efficient cleaning has been achieved without damaging the workpiece. This balance is crucial for ensuring the surface quality and optical performance of optical components.