Dualitas Ltd

Cambridge Enterprise Limited the Old Schools

William Crossland

Neil Collings

Jamieson Christmas

Dackson Masiyano

Edward Buckley

Peter Mash

Timothy Wilkinson

Adrian Cable

Nicholas Lawrence

There is disclosed a projector arranged to project a light pattern. The projector comprises a spatial light modulator and a light source. The spatial light modulator has an array of pixels arranged to display a phase pattern. The array of pixels may be a substantially planar array of pixels. Each pixel comprises liquid crystals having a director rotatable in a plane of rotation between a first direction and a second direction. The light source is arranged to illuminate the array of pixels with polarised light such that the light is spatially-modulated in accordance with the phase pattern to form the light pattern. It may be said that the light pattern corresponds to the phase pattern. The angle of incidence of the light on the array of pixels is greater than zero and the light is s-polarised. The first direction is parallel to the polarisation direction of the light. The second direction is in the plane of incidence.

Spatial light modulation

There is disclosed herein a liquid crystal on silicon spatial light modulator, 'LCoS SLM', device arranged for in-plane switching. The LCoS SLM device comprises: a silicon backplane (); a transparent substrate (); a liquid crystal layer (); an electrode structure () and a reflective component (). The liquid crystal layer () is interposed between the silicon backplane () and the transparent substrate (). The electrode structure () is formed on the silicon backplane () for generating an electric field in the liquid crystal layer (). The electric field is substantially parallel to the silicon backplane (). The reflective component () is opposing the transparent substrate ().

Growing community of inventors

Milton Keynes, United Kingdom

William Crossland