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Custom-made Ceramic
and Glass Components

BK7® Optical Glass

BK7® glass is a type of high-quality optical crown glass, often used for the production of lenses, windows, mirrors and other optical components. It is very clear and colorless and is commonly used as a cost-effective alternative to fused silica when operating conditions allow. It is a reasonably hard material and has good scratch resistance.

The properties of this glass make it particularly suitable for use as a technical material in many laser and other optical systems.

Characteristics of BK7® optical glass include:

  • Good transmission properties in the visible and near infrared regions
  • Low bubble and inclusion content
  • Very clear and colorless appearance
  • High homogeneity

Goodfellow Ceramic and Glass Division is able to supply a wide range of ceramic and glass materials as finished components. Our capabilities range from custom-made precision microcomponents with very high tolerance features to large heavy-duty components used in industrial applications. Additionally, standard semi-finished forms such as tubes, rods, bars, plates, crucibles and spheres are often available from our wide inventory. Please contact us with full details of your requirements, including drawings where available, and we will review and respond with a quotation as soon as possible.

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