What applications are BK7/K9 optical glass suitable for?

Update Time:2026/4/28

BK7 and K9 optical glass are versatile materials suitable for a wide range of optical applications, thanks to their excellent optical properties, stability and machinability.

One of the most common applications of BK7 and K9 optical glass is in optical instruments such as cameras, microscopes, telescopes and binoculars. In cameras, they are used to make lenses that capture clear and sharp images. In microscopes, they are used for objective lenses and eyepieces that magnify small objects. In telescopes and binoculars, they are used for objective lenses and prisms that gather and focus light. These applications require high optical clarity and consistent performance, which BK7 and K9 optical glass can provide.

BK7 and K9 optical glass are also widely used in laser systems. They are used for optical windows, lenses, prisms and beam splitters that help to guide and focus laser beams. Their high transmittance ensures that the laser beam passes through the material with minimal loss, and their stability ensures consistent performance even under high-power laser conditions. Whether you are working with a low-power consumer laser or a high-power industrial laser system, BK7 and K9 optical glass can meet your requirements.

In the medical industry, BK7 and K9 optical glass are used in various medical devices such as endoscopes, surgical microscopes and diagnostic equipment. Their high optical clarity and biocompatibility make them suitable for applications that require clear imaging and contact with the human body. They are also used in laboratory equipment such as spectrometers and analytical instruments, where their stability and accuracy are critical for reliable results.

Industrial applications of BK7 and K9 optical glass include optical windows for industrial equipment, protective covers for sensors, and prisms for automation systems. They are also used in testing and measurement equipment, where their stability and accuracy are essential for reliable performance. In addition, they are used in the automotive industry for applications such as headlight lenses and sensor components.

BK7 and K9 optical glass are also used in consumer electronics such as smartphones, tablets and digital cameras. They are used for camera lenses, display protectors and other optical components that require high clarity and durability. Their cost-effectiveness and good performance make them a popular choice for consumer electronic applications.

In addition to these applications, BK7 and K9 optical glass can be customized to meet the specific requirements of various projects. Our factory provides customized BK7 and K9 optical glass parts, including cutting, polishing, coating and CNC machining services, to ensure that the components meet the exact specifications of your application. Whether you are working on a consumer product, an industrial project or a scientific research application, BK7 and K9 optical glass offer the performance, versatility and reliability you need.

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What is your MOQ for custom optical glass and display glass parts?: Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.

Can I get free glass samples for testing before bulk order?: Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?: What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?: All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.

Do you offer one-stop custom optical glass processing services?: Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.

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What applications are BK7/K9 optical glass suitable for?

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.