Elfys Inc. was established in 2017 from research work performed on the Aalto University campus in Espoo. The company designs, develops, and manufactures customized and standardized photodiodes (light detectors) for various uses.
The photodiodes perform with quantum efficiency using a black silicon induced junction technology. The company claims that their products can achieve up to a 200% improvement in UV and 30-50% in x-ray detection and imaging compared to currently available products. These innovations allow new frontiers in spectroscopy to be explored, allow improvements in any light detection application with more compact equipment, while X-Ray imaging can be performed with lower levels of radiation to secure enhanced images.
Their “SM series” photodiode products provide good performance of photosensitivity in visible and near infrared spectrum and are especially suitable for health monitoring applications in wearable devices. Together with its compact packaging and high fill factor of photosensitive area, it facilitates innovative wearable products design.
Their other series, the “PD series” photodiode products provide superior performance in photosensitivity across a wide spectrum of wavelengths, from deep UV, Vis to NIR. There are currently five individual products in this PD series photodiode products which are all suitable for various high precision photometry applications.
The key applications of the above products are summarised here into four areas:
1. Health monitoring – allow improvements in data accuracy and power saving for wearables.
2. Spectroscopy – allow better detection response for multiple purposes and techniques.
3. Light Sensing – theirtechnology solution enhances photodetector performance, capturing more light (from UV to near IR) without directional limitations.
4. X-ray Imaging – permit a bigger boost to capture diffused light, allowing lower X-ray doses.
ElFys’ patented technology captures all of light rays when most light sensing technologies capture only around two thirds. Their black silicon induced junction photodiode provides an extra sensitivity over wide spectral range, especially in the ultraviolet as well as ultra-wide viewing angle. Increased sensitivity provides improvement potential to any applications where light needs to be measured.
In the past few years the company has raised new equity rounds to ensure production ramp up for wearables market that is seeing a growing demand for photodetectors for measuring health and wellbeing with wearables. Investors have been Samsung Venture Investment Corporation (SVIC), together with earlier shareholders, Voima Ventures and the founders of Oura Health, the company behind the Oura Ring.
Photo: Elfsys Inc.
