Display system and light control element therefor
AssigneeEnvisics Ltd
InventorsCeledonia Krawczyk, Yiren Xia, Timothy Smeeton, Jamieson Christmas
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Abstract
A display system and light control layer is described. The display system includes an optical component having a reflective surface. A light control layer is disposed on a first surface of the optical component on an optical path of sunlight to the reflective surface. The light control layer includes a louvre structure including an array of louvres. Each louvre is arranged at an orientation angle relative to the first surface. The separation between adjacent/neighbouring louvres is such that the distal end/edge of one louvre overlaps the proximal end/edge of the adjacent/neighbouring louvre.
Claims19
A display system configured for the transmission of image light to a viewing area, the display system comprising an optical component, the optical component being reflective, the display system further comprising:
- a light control layer disposed on a first surface of the optical component on an optical path of sunlight to the optical component, wherein the first surface has a first dimension and a second dimension, wherein the light control layer comprises a louvre structure comprising an array of louvres, each louvre extending longitudinally in the first dimension of the first surface, the louvres being spaced apart by a louvre pitch in the second dimension of the first surface;
- wherein each louvre has a width defined between a proximal end adjacent the first surface and a distal end;
- wherein each louvre is arranged at an orientation angle θ relative to the first surface,
- wherein a separation in the second dimension between adjacent louvres is such that the distal end of one louvre overlaps the proximal end of the adjacent louvre;
- and
- wherein each pair of adjacent louvres of the light control layer is separated by a transparent structure, each transparent structure having opposing first and second surfaces spaced from the first surface of the optical component, each transparent structure being arranged such that the first and second surfaces are angled relative to the adjacent louvres to prevent specular reflection of sunlight incident on the optical component from being directed to the viewing area.
A display system configured for the transmission of image light to a viewing area, the display system comprising an optical component, the optical component being reflective surface, the display system further comprising:
- a light control layer disposed on a first surface of the optical component on an optical path of sunlight to the optical component, wherein the light control layer comprises a louvre structure comprising an array of louvres;
- wherein each louvre has a width defined between a proximal end adjacent the first surface and a distal end;
- wherein each louvre is arranged at an orientation angle θ relative to the first surface, and
- wherein the array of louvres includes between each pair of adjacent louvres of the array a transparent structure, each transparent structure having opposing first and second surfaces spaced from the first surface of the optical component, the transparent structure being arranged such that the first and second surfaces are angled relative to the adjacent louvres to prevent specular reflection of sunlight incident on the optical component from being directed to the viewing area.
Dependencies are inferred from the claim text.