Heriot-watt University

The University of Edinburgh

Heroit-watt University

Aoi Foils Limited

Julian David Clayton Jones

Guy Gregory

Anita Claire Jones

James Stephen Barton

Jolyon Mark De Freitas

Philip Norman Spencer

David Peter Towers

Catherine Elizabeth Towers

The invention provides a novel method for absolute fringe order identification in multi-wavelength interferometry based on optimum selection of the wavelengths to be used. A theoretical model of the process is described which allows the process reliability to be quantified. The methodology produces a wavelength selection which is optimum with respect to the minimum number of wavelengths required to achieve a target dynamic measurement range. Conversely, the maximum dynamic range is produced from a given number of optimally selected wavelengths utilized in a sensor. The new concept introduced for optimum wavelength selection is scalable, i.e. from a three wavelength system to a four wavelength system, from four wavelengths to five, etc.

Phase measuring method and apparatus for multi-frequency interferometry

According to one aspect of the present invention there is provided a coating material comprising: a functional coating component; and a fluorescent additive component whose fluorescence is substantially unquenched by the coating component, the fluorescent additive component having a peak fluorescence emission under excitation by visible or infrared light, the wavelength of that peak fluorescence emission being greater than 500 nm and lying outside the principal fluorescence absorption and emission wavelengths of the coating component.

Fluorescent materials

Growing community of inventors

West Linton, United Kingdom

Julian David Clayton Jones