World class optical thin films

Optical filters from DELTA

More than 50 years of experience

DELTA is a world-leading manufacturer of optical thin film coatings with more than fifty years of experience. In the 1960s, DELTA pioneered optical monitoring techniques to control deposition.

With its unique and advanced optimisation software to match customers' particular optical specifications, DELTA ensures a fast and efficient design process.

Advanced optical coatings

In the early 1990s DELTA pioneered computer controlled optical monitoring and automatic deposition of advanced optical coatings, helping the world's leading manufacturers of analytical instruments in setting new standards.

Already in 2005, DELTA successfully managed to produce optical filters with the Ultra-Hard-Coated technology. DELTA has then led the way towards an ever increasing complexity and performance of optical filters.

In our Filter Catalogue, you can find:

• Linear Variable Filters
• Bandpass filters: Single or Multiband, Laserline, Broadband 
• Notch filters
• Beamsplitters: Dichroic, Polarisation
• Mirrors
• Edge filters: Long Wave Pass or Short Wave Pass
• RGB filters, XYZ filters
• SMART coatings: Multifunctional filters

Our products are found in a variety of applications, including:

• Fluorescence microscopy
• Flow cytometry
• Raman spectroscopy
• Wavelength selectors
• High-performance monochromators
• Biomedical laser systems
• Point of Care (PoC) instruments
• Image transferring systems
• Colour separation systems
• Optical Coherence Tomography

For a custom design filter, please contact us:
Filters Inquiries, filters@delta.dk
+45 72 19 43 60

See video: Tunable bandpass filter