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Delta Optical Thin Film A/S
MapVenlighedsvej 4
DK-2970 Horsholm
Phone: +45 70 70 71 46
Shedding light on optical thin films from Delta Optical Thin Film A/S
Delta Optical Thin Film A/S is a world-leading manufacturer of optical thin-film coatings with more than 50 years' of experience. In the 1960s, Delta pioneered optical monitoring techniques to control deposition.

With its unique and advanced optimization 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.

Continuously Variable Filters
A Continuously Variable Filter (CVF) is a wedged filter, whose spectral properties vary continuously along one dimension of the filter. A single CVF for example can replace a number of fixed filters in an instrument. It is possible to adjust the centre or edge wavelength by sliding the filter.

Delta Optical Thin Film has lifted the quality of variable filters to new levels by introducing a new powerful combination of continuously variable filters. Delta Optical Thin Film offers a Linear Variable Long Wave Pass filter (LVLWP), the corresponding Linear Variable Short Wave Pass filter (LVSWP) together with a Linear Variable Dichroic. Each of the filters can be used separately. Combining LVLWP and LVSWP enables the construction of band-pass filters that can be tuned continuously with center wavelengths from 320 nm to 850 nm, with the added benefit of tunable bandwidth.
Established: 2015
Employees: 20
Facility area (sq ft): 13,000
Ownership type: Privately Owned
Poul Svensgaard, CEO
Oliver Pust, Sales/Mktg. Dir.
Henrik Fabricius, CTO

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