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Input device

  • US 20010007449A1
  • Filed: 02/16/2001
  • Published: 07/12/2001
  • Est. Priority Date: 01/20/1997
  • Status: Abandoned Application
First Claim
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1. An input device comprising:

  • a base having a slide surface;

    a movable body slidable on the slide surface;

    a light-emitting element for emitting light;

    a reflective portion which is provided for the movable body and has a reflective surface for reflecting the light emitted by the light-emitting element;

    a plurality of light-receiving elements for receiving the light reflected by the reflective portion; and

    a fixing portion provided on the base, wherein the movable body is supported by an elastic structure including an elastic body which expands/shrinks with a sliding of the movable body, wherein the elastic structure is linked to the base via the fixing portion, wherein the light-emitting element and the plurality of light-receiving elements are connected to the base, and wherein a variation of a total amount of light received by the plurality of light-receiving elements from the light reflected by the reflective portion as the movable body, which has at least a portion thereof in contact with the slide surface and which slides on the slide surface, is detected as a direction and an amount of two-dimensional movement of the movable body.

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