Custom BK7 & K9 Optical Glass Processing FAQ

At Felix Glass, we provide a full range of processing services for BK7 and K9 optical glass, from initial material preparation to final product delivery, to meet the diverse needs of our customers.Our processing services start with material cutting, where we use precision diamond cutting equipment to cut BK7 and K9 glass into the required size and shape. This process ensures clean edges and minimal material waste, which is essential for maintaining the quality of the glass.Next, we offer surface grinding and polishing services. Surface grinding is used to achieve the required dimensional accuracy and flatness, while polishing is used to create a smooth, scratch-free surface with high optical clarity. We use both mechanical and chemical polishing techniques to achieve different surface finishes, depending on the application requirements.For parts that require complex shapes or precise features, we provide CNC machining services. Our CNC equipment can machine custom shapes, holes, and grooves in BK7 and K9 optical glass with high accuracy, making it suitable for specialized applications such as optical instruments and industrial equipment.We also offer anti-reflective (AR) coating services for optical glass parts. Our coating options include single-layer and multi-layer AR coatings for visible, near-infrared, and ultraviolet spectrums, tailored to your specific wavelength requirements. AR coating reduces surface reflection, improves light transmittance, and optimizes the optical performance of the parts.In addition to these core services, we also provide additional processing options such as edge blackening, beveling, and cleaning. Edge blackening is used to reduce stray light in optical systems, while beveling is used to reshape edges for safety and improved handling. All our processing services are carried out under strict quality control standards to ensure consistent quality.Whether you need basic processing for standard parts or advanced services for custom components, we can provide you with a one-stop solution. Our experienced engineering team will work with you to understand your requirements and recommend the most suitable processing services for your project.If you have specific processing requirements for your optical glass parts, please contact our sales team today for a customized solution.

At Felix Glass, we maintain strict processing tolerances for all BK7 and K9 optical glass parts to ensure consistent quality and performance for your applications. Our tolerance standards cover three key areas: dimensional accuracy, surface quality, and optical performance.For dimensional accuracy, we can achieve a typical tolerance of ±0.01mm for most standard optical glass parts. For high-precision applications, we can provide tighter tolerances down to ±0.005mm, depending on the complexity of the part and the material specifications. Our CNC machining equipment is calibrated regularly to ensure consistent accuracy across all production batches.In terms of surface quality, we can achieve a surface roughness of up to Ra 0.005μm, which ensures high optical clarity and minimal light scattering. We also control surface flatness, with typical flatness tolerances up to λ/10 at 632.8nm for precision applications. For anti-reflective coated parts, we also ensure coating uniformity and adhesion to meet industry standards.Optical performance tolerances include transmittance and refractive index consistency. Our BK7 and K9 optical glass parts are tested for visible light transmittance, with typical values above 91% for uncoated parts and above 98% for AR-coated parts. We also ensure consistent refractive index across all batches to avoid variations in optical performance.All our processing tolerances are verified through rigorous quality control testing, including dimensional inspection with coordinate measuring machines (CMM), surface roughness testing, flatness measurement with interferometers, and optical transmittance testing with spectrophotometers. This comprehensive quality control process ensures that every optical glass part we produce meets the required specifications.If you have specific tolerance requirements for your project, please contact us with your detailed specifications, and our engineering team will confirm our capabilities and provide you with a customized solution.

Yes, we offer comprehensive one-stop customization services for BK7 and K9 optical glass parts, tailored to meet the exact specifications of your projects.Our customization capabilities cover every stage of the production process, from initial drawing review to final delivery. We support custom size, thickness, shape, and surface processing for BK7 and K9 optical glass, whether you need simple flat windows, round lenses, square blanks, or complex irregular-shaped components. Our engineering team will work closely with you to review your design drawings, provide professional suggestions for manufacturability, and confirm all technical details before production begins.In addition to basic size and shape customization, we also offer advanced processing services, including CNC machining, precision cutting, surface grinding, polishing, and anti-reflective coating. Whether you need standard components or highly specialized parts for scientific research, industrial equipment, or optical instruments, we can meet your requirements.We understand that different applications have different needs, so we are flexible to support both small-batch prototype orders and large-scale mass production projects. Our production line is equipped with advanced processing equipment, which allows us to maintain consistent quality even for complex custom parts. All our products are manufactured under strict quality control standards, ensuring that each component meets the required specifications.At Felix Glass, we take pride in our ability to deliver high-quality custom BK7 and K9 optical glass parts that meet our customers' unique requirements. If you have a custom project in mind, please feel free to contact us with your drawings or specifications, and our team will provide you with a professional solution and competitive quotation.