Customer-focused optical coatings
We separate light to meet your needs!
From concept to series production:
bk Interferenzoptik develops and manufactures custom thin-film coatings, particularly interference filters, for demanding optical applications.
Meet bk at Laser World of Photonics | World's Leading Trade Fair, June 22–25, 2027, Munich.
Visit us at our booth. Interested in a meeting? Request appointment via email.
You're in good company ...
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Leading brands worldwide trust our quality
Our products are used in areas including:
- Space
- Aviation and maritime technology
- Astronomy
- Biology
- Medicine
- Environmental technology























