Glass Aspherical Processing: Yighen Ultra Precision Redefines High-Precision Optical Component Manufacturing

In modern optics and precision manufacturing, glass aspherical optical elements have become the core components that drive the development of high-end technology due to their excellent optical performance. Compared with traditional spherical lenses, aspherical lenses can significantly reduce aberrations and distortions in optical systems, improving image quality, system compactness and energy utilization. As a result, these components are widely used in high-end optical instruments, laser equipment, aerospace and scientific research equipment. However, despite the tremendous industry value of aspherical components, their processing difficulty far exceeds that of traditional spherical components, and the processing of glass aspherical surfaces, in particular, is extremely challenging.

Glass Aspherical Lenses

Difficulties and technological breakthroughs in glass aspherical processing

The core difficulty of glass aspherical processing lies in its complex geometry and high precision requirements. The complex curvature changes of aspheric surfaces require high-precision equipment and technology to realize precise control of the shape. Traditional cold machining methods are prone to shape deviations and surface defects when dealing with complex surfaces, making it difficult to meet the stringent requirements for optical performance. In addition, although excellent in certain material processing, single-point diamond lathes are prone to surface quality degradation when dealing with glass and cannot meet the demands of high-end optical applications.

These technical challenges make glass aspheric machining an area requiring a high degree of specialization and advanced equipment support. For this reason, Yighen Ultra Precision takes glass asphere processing as its core technology attack direction through independent research and development. With the introduction of international leading equipment, such as the Satisloh SPM-200 precision grinder, known for its unparalleled precision and reliability, and innovative process technology, such as magnetorheological polishing, a cutting-edge technique that ensures superior surface quality, Yighen Ultra Precision has successfully solved the problems of shape accuracy, surface quality and material damage to provide customers with high-precision, high-quality processing solutions.

Yighen Ultra Precision Glass Aspheric Processing Flow

Yighen Ultra Precision's glass aspheric machining process is divided into three core steps: approximate blank machining, precision face grinding, and ultra-light surface polishing. First, the raw material is roughed out using a high-performance precision engraving machine, which quickly produces a rough approximation of the design requirements, dramatically reducing initial errors and subsequent machining difficulties. Next, we use a Satisloh SPM-200 precision grinder to perform high-precision grinding, realizing surface shape control with a PV accuracy of up to 0.5 μm and laying the foundation for subsequent polishing. Finally, superluminous treatment using magnetorheological polishing (MRF) or conventional polishing equipment reduces the surface roughness (Ra) to less than 7 nm, significantly improving the optical performance and reducing scattering and absorption phenomena.

Available processing materials and their characteristics for Yighen Ultra Precision aspheric surfaces

Yighen Ultra Precision can process a wide range of materials to meet the needs of different application scenarios. For example, fused silica is ideal for laser and UV optical systems due to its excellent optical transparency and high-temperature resistance; optical glass is widely used in both conventional and high-precision optics due to its stable optical properties; silicon carbide is suitable for optical applications in extreme environments due to its high hardness and excellent heat resistance; and metallic materials (e.g., aluminum, stainless steel) play an important role in the design of integrated optical and structural design. Whether it's super-hard materials or metals, Yighen Ultra Precision delivers high-precision, high-quality machining results.

Areas of application and their needs

Yighen Ultra Precision's glass aspheric machining technology is valuable in several high-tech applications. In the field of high-end optical instruments, our technology significantly improves the image quality and precision of microscopes, telescopes and spectrometers; in laser systems, our processing results become the core optical components of laser cutting and measuring equipment, ensuring an efficient and stable operation; in the field of aviation and aerospace, precision optical aspherical components play a key role in space cameras and satellite optical systems; and in the field of scientific research equipment such as In the aerospace field, precision optical aspherical components play a key role in space cameras and satellite optical systems. In scientific research equipment, such as high-energy laser experimental devices, our technology provides a reliable performance guarantee for key optical components to support advancing cutting-edge research.

Technical Advantages and Performance Metrics

Yighen Ultra Precision ensures the high performance of optical components by realizing high-precision shape control (PV accuracy of up to 0.5 μm) with the Satisloh SPM-200 grinder and by reducing surface roughness (Ra) to less than 7 nm with magnetorheological polishing technology. In addition, we are equipped with multi-material processing capability, supporting precision processing of fused silica, silicon carbide, metals, etc. Yighen Ultra Precision has always been customer-centered, committed to shortening product development cycles, reducing production costs, and injecting new impetus into the development of the optics industry through continuous technological innovations, making it an important force for the advancement of the industry.

Technical Advantage and Industry Value

Yighen Ultra Precision: Your Reliable Partner in High-End Optical Field

Whether it is a complex asphere design or the challenge of machining hard and brittle materials, Yighen Ultra Precision provides reliable aspherical solutions with its technical expertise and excellent service. We are committed to pushing the limits of technology, constantly seeking new innovations and improvements. This commitment is what allows us to inject more possibilities into the future development of the optical industry, ensuring that we remain at the forefront of the field.