Methods and systems for changing the appearance of a position sensor with a light effect
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United States of America Patent
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Jun 3, 2008
Grant Date -
Oct 21, 2004
app pub date -
Apr 15, 2003
filing date -
Apr 15, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems are provided for producing a light effect on a touchpad or other position sensor. In one aspect, a position sensor for detecting a position of an object suitably includes a sensor, a light source, and a light conductor at least partially located between the sensor and the object. The light conductor is configured to transmit light from the light source to produce a light effect that alters the appearance of the position sensor. Because the light conductor is located between the sensor and the object, the sensor need not be made from transparent or translucent material, thereby significantly reducing the cost of the sensor. In a further aspect, the position sensor includes at least one marking or pattern in proximity to the light conductor such that the marking can be made visible by at least a component of the light to produce an image of a soft control, logo, ornamental design, status indicator or the like.
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