Angle-resolved measurements of optical material properties

Reference number 2018-04558
Coordinator RISE Research Institutes of Sweden AB - Mätteknik Borås
Funding from Vinnova SEK 555 000
Project duration January 2019 - December 2020
Status Ongoing

Purpose and goal

In order to meet an existing industry need, which is clear e.g. in the automotive industry with new types of glass with changeable properties for optimizing active system sensors, the NMI wants to improve the methodology and performance of our BRDF (Bidirectional Reflectance Distribution Function) measurement system, and also develop a new system for traceable measurements of BTDF (Bidirectional) Transmittance Distribution Function).

Expected results and effects

In addition to enabling new services for the benefit of the industry by providing traceable measurements of BTDF and BRDF, the outcome of the project will make the NMI group a more attractive partner for future research projects. Also, within a few years from now the hope is that both BRDF and BTDF will be well-defined and established quantities, thus enabling the NMI to expand its existing CMCs.

Planned approach and implementation

The NMIs existing measuring equipment for BRDF will be optimized and validated. For BTDF (with normal incident radiation), a new automated system will be developed, partly based on existing equipment. This includes design, control, data collection, methodology and validation. The latter will partly be carried out by the NMIs participation in an upcoming related EMPIR project.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.