Manufacturer of optical thin-film coatings and interference filters – from small batches starting at 1 piece to large-scale series.
bk Interferenzoptik Elektronik GmbH
NabburgNew on Amplifa
About bk Interferenzoptik
bk Interferenzoptik Elektronik GmbH was founded in Nabburg in 1991 for the production of thin films, in particular interference filters. The company manufactures standard and custom optical coatings such as bandpass filters (UV–NIR and IR), fluorescence filters, neutral density filters, colored glass filters, longpass filters, heat reflection filters, cold light mirrors, front-surface mirrors, beamsplitters and anti-reflection coatings. Production takes place on computer-controlled high-vacuum evaporation and sputtering systems; in addition, the company offers optical measurement of optical quantities and the machining of colored glass filters. Both small batches from 1 piece and large-scale series with short delivery times are possible. The products are used, among other things, in space, aviation and marine engineering, astronomy, biology, medicine and environmental technology, and are manufactured to worldwide recognized quality in accordance with DIN EN ISO 9001 and MIL STD 810 E.
- Site
- Nabburg
- Processes
- Thin-film coating (high-vacuum evaporation), Sputtering (sputtering systems), Production of interference filters (bandpass filters UV-NIR, bandpass filters IR, fluorescence, Optical measurement, Colored glass filter machining, Development of custom coatings, Small batches from 1 piece and large-scale series
- Materials
- Colored glass, Glass, High-vacuum evaporation, Sputtering
- Certificates
- DIN EN ISO 9001 (quality standards in accordance with), MIL STD 810 E (requirement), DIN EN ISO 9001, MIL STD 810 E
- Founded
- 1991
- Industries
- Space, Aviation and marine engineering, Astronomy, Biology, Medicine, Environmental technology
- 01
Development of custom coatings
- 02
High-vacuum evaporation / sputtering
- 03
Colored glass filter machining
- 04
Optical measurement
- 05
Delivery
Materials and Processes
Glass
Substrate material for optical filters and thin-film coatings.
Colored glass
Material for colored glass filters, IR blocking and longpass filters; also machined.
High-vacuum evaporation
Computer-controlled process for producing optical thin films.
Sputtering
Computer-controlled coating process for standard and specialty coatings.
Sites
Nabburg
DEHeadquarters and production
- Lot size
- 1 piece to large-scale series
- Materials
- Glass, colored glass
- High-vacuum evaporation systems (computer-controlled)
- Sputtering systems (computer-controlled)
Products and Filters
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Thin-film coating (high-vacuum evaporation)Surface | – | – | – | 1 pc. – Large-scale series | Glass, Colored glass |
| Sputtering (sputtering systems)Surface | – | – | – | 1 pc. | Glass, Colored glass |
| Production of interference filters (bandpass filters UV-NIR, bandpass filters IR, fluorescenceSurface | – | – | – | 1 pc. | – |
| Optical measurementTesting | – | – | – | – | – |
| Colored glass filter machiningSurface | – | – | – | – | Colored glass |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| High-vacuum evaporation systems (computer-controlled) | – | – | – | – | Nabburg |
| Sputtering systems (computer-controlled) | – | – | – | – | Nabburg |
Additional services
Quality
Consistent quality standards in accordance with DIN EN ISO 9001 and MIL STD 810 E are ensured by qualified specialists, modern manufacturing and a continuously improved quality manual based on a zero-defect philosophy. Optical quantities can be measured at the customer's request.
| Evidence | Nabburg |
|---|---|
| DIN EN ISO 9001 | |
| MIL STD 810 E |
History
- 1991
Foundation of bk Interferenzoptik Elektronik GmbH for the production of thin films, in particular interference filters.
- 2015
25 years of bk Interferenzoptik.
- 2018
Acquisition of the business operations of Dr. Hugo Anders Optische Laboratorien Gesellschaft für Dünne Schichten GmbH.