Touch sensing apparatus and method for assembly
AssigneeFlatFrog Laboratories AB
InventorsDaniel Skagmo, Robert Ehn, Hakan Bergstrom
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Abstract
A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.
Claims12
A touch sensing apparatus, comprising:
- a plate comprising a touch surface, a back surface, and an edge surface;
- a frame assembly configured to support the plate, wherein the frame assembly comprises a plurality of frame elements, said frame elements comprising:
- a first element configured to support the back surface of the plate;
- and
- a second element including a first portion extending parallel to the edge surface of the plate in a direction perpendicular to a normal of the touch surface and a second portion extending parallel to the touch surface and covering a portion of the touch surface, wherein the second portion is separated from the touch surface by a spacing;
- and
- an optical element configured to be secured in the spacing between the second element and the touch surface, said optical element comprising a first surface configured to receive light propagating across a touch interacting portion of the touch surface and a second surface opposite the first surface.
A touch sensing apparatus, comprising:
- a plate comprising a touch surface, a back surface, and an edge surface;
- a frame assembly configured to support the plate;
- and
- an optical element configured to be secured in a spacing between a portion of the frame assembly and the touch surface, said optical element comprising a first surface configured to receive light propagating across a touch interacting portion of the touch surface and a second surface opposite the first surface,
- said optical element positioned above the touch surface.
Dependencies are inferred from the claim text.