Input device
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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Abstract
The input device of the present invention includes: 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; and a plurality of light-receiving elements for receiving the light reflected by the reflective portion.
65 Citations
45 Claims
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1. An input device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification