In the ophthalmology industry, ultra-precise single-crystal diamond tools (SCD) are mainly used for the precise processing of resin lenses and contact lenses.
Its high hardness and low friction make it an ideal tool for processing non-metallic materials such as resins and optical glass. Especially in the production of resin lenses, the tool can directly achieve mirror-level turning (with a surface roughness of Ra 4μm or less), eliminating the traditional polishing process and significantly improving processing efficiency and consistency of the finished product.
In the manufacturing of contact lenses, SCD tools are mainly used for processing high-precision molds, such as the aspheric mold cores of contact lenses. Through ultrasonic vibration cutting technology, the cutting tool can achieve nanoscale surface quality (waviness <10nm, shape accuracy ±50nm), ensuring that the curvature radius and light transmittance of contact lenses meet medical-grade standards.
With its technical advantages such as high thermal conductivity and chemical stability, ultra-precision single crystal diamond tools have driven the eyewear industry to upgrade towards high-precision and low-loss manufacturing. In the high-end eyewear sector, SCD supports the research and development of customized aspheric lenses and lightweight contact lenses, meeting the strict requirements for optical performance and wearing comfort.
Single-crystal diamond tools are recognized for their high hardness and ability to maintain low friction levels during the manufacturing process. This makes them the ideal choice for precision-cutting non-metallic materials, such as resins and optical glass, which are commonly used in the production of resin lenses.
Mirror-Level Turning: SCD tools enable the direct achievement of mirror-level turning with a surface roughness of Ra 4μm or less, eliminating the need for traditional polishing processes.
Enhanced Efficiency & Consistency: The elimination of polishing significantly boosts processing efficiency while ensuring a consistent and high-quality finished product.
The adoption of SCD tools in resin lens production is revolutionizing the industry, allowing manufacturers to meet high consumer expectations for both clarity and durability.
When it comes to producing high-precision contact lenses, every detail matters. SCD tools are particularly beneficial in the processing of aspheric mold cores used to create contact lenses.
Nanoscale Surface Quality: Using ultrasonic vibration cutting technology, SCD tools deliver an outstanding surface finish with a waviness of less than 10nm and a shape accuracy of ±50nm.
Medical-Grade Precision: This precision ensures that contact lenses meet strict medical standards for light transmittance and curvature, which are essential for providing users with the best visual experience and comfort.
By utilizing SCD tools, manufacturers can produce contact lenses that adhere to stringent medical standards while maintaining optimal optical performance.
High Thermal Conductivity: SCD tools are capable of withstanding high temperatures, making them suitable for high-speed cutting operations without compromising precision.
Chemical Stability: The inherent chemical stability of diamond allows these tools to perform reliably in harsh environments, offering longevity and consistency during prolonged use.
Versatility Across Industries: Beyond ophthalmics, SCD tools have applications in various other industries, including semiconductor manufacturing and precision engineering, showcasing their versatility and widespread use.
The eyewear industry is continuously pushing the envelope for customized, high-performance lenses that offer both optimal optical properties and superior comfort. Ultra-precise single-crystal diamond tools are facilitating this innovation by supporting:
Customized Aspheric Lenses: With their ability to process complex geometries, SCD tools are instrumental in developing custom aspheric lenses that provide better optical clarity and reduce visual distortion.
Lightweight Contact Lenses: The precision offered by SCD tools contributes to the production of lightweight, high-quality contact lenses that offer enhanced comfort and convenience for users.
As the eyewear sector continues to demand more innovative solutions, SCD tools are leading the way in developing next-generation lenses that provide exceptional optical performance and comfort.
The integration of ultra-precise single-crystal diamond tools in the ophthalmic industry marks a significant leap forward in the quality and precision of optical components. By eliminating traditional processes such as polishing and reducing material loss, SCD tools are helping manufacturers meet the increasing demands for high-quality, customized, and medical-grade optical products. As the technology continues to evolve, the role of SCD tools in the future of eyewear and contact lens manufacturing is poised to expand, paving the way for even more advanced optical solutions.