The Covid-19 Pandemic Has Accelerated Product Development

A Danish technology firm is converting a medical apparatus to enable it to test for coronavirus. In fourteen days, the Danish medical device producer Qlife modified its transportable analysis instrument so that it can test for SARS-CoV-2 in around 20 minutes. By Bjørn Godske In record time, medical device producer Qlife has shown that […]

Delta Optical Thin Film A/S is moving into new facilities

Following strong growth Delta Optical Thin Film A/S is moving into its new purpose-built facilities in DTU Science Park in Hørsholm, Denmark. A new, larger facility became necessary as Delta Optical Thin Film A/S had outgrown its previous residence both in terms of production and office space. At the same time, the new manufacturing building […]

OSA Industry Member Profile – Delta Optical Thin Film

By Samantha Hornback, Research & Program Development Coordinator, The Optical Society OSA Industry Development Associates (OIDA) member Delta Optical Thin Film, Denmark, is the leading continuously variable filter manufacturer in the industry. Calling themselves “The Optical Filter Company,” Delta puts an emphasis on customization and the highest quality products. To learn more about Delta and […]

Delta Optical Thin Film A/S helps develop Covid-19 quick tests

We are extremely happy to have developed and produced a set of high-performance fluorescence filters for Danish Qlife to be used in their ground-breaking Point of Care instrument. Qlife has licensed and implemented a test for Covid-19 that delivers a result within 20 minutes. Read more about the instrument and test at and […]

We Are Open for Business, Set up a Teams Meeting!

#covid19 and its possible implications make the headlines these days. At Delta Optical Thin Film A/S we want to minimise the risks associated with the pandemic for our customers, suppliers and ourselves. Therefore, we decided to cease all travel activities until further notice. But you can still meet, see and talk to us virtually. We […]

Fight Corona!

As everybody else we are both concerned and affected by the Corona virus pandemic – both at a personal and business level. As of today we are in the lucky situation that none of our colleagues or their families are infected with Covid19. Our operations continue to operate under strict safety measures.   At the […]

Delta Optical Thin Film A/S launches 4G Continuously Variable Filters

Delta Optical Thin Film has utilised its decades of experience to develop the 4th generation Continuously Variable Short Wave Pass and Continuously Variable Long Wave Pass Filters. A continuously variable filter is a wedged filter that has spectral properties that vary continuously along one dimension of the filter. Just one of these filters can be […]

High spatial resolution hyperspectral camera based on exponentially variable filter

Our customer Ingmar G. E. Renhorn recently published an article in Optical Engineering, 58 (10), 103106 (2019), that utilizes our most recent development, a continuously variable bandpass filter that features an exponential dispersion to obtain uniform sampling with respect to spectral resolution, i.e., a constant number of samples per spectral channel. At Delta Optical Thin […]

Delta Optical Thin Film A/S was awarded the prestigious Børsen Gazelle 2019 award

Delta Optical Thin Film A/S was awarded the prestigious Børsen Gazelle 2019 award today. The Gazelle is awarded to companies that grew their revenue in four consecutive years and have at least doubled their revenue in these four years. Obviously we achieved these criteria 😉 We owe a big “Thank you!” to our customers, partners, […]

Bringing Light Field Technology to HSI

Our customer Cubert GmbH released their hyperspectral light field camera ULTRIS 20 with a groundbreaking new approach. You can download the English and German version of an article that describes the camera and compares it to traditional prism-based and filters-on-chip approaches. At Delta Optical Thin Film we are  proud to contribute with our unique Bifrost […]