Pointing device comprising a light control part and electronic apparatus comprising an input device
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United States of America Patent
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Jun 3, 2014
Issued Date -
N/A
app pub date -
Aug 25, 2010
filing date -
Nov 17, 2009
priority date (Note) -
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Abstract
A pointing device including a touching surface, a light emitting diode, an imaging element, and a first light control part. A fingertip is placed on the touching surface. The light emitting diode illuminates the touching surface from a side opposite to a side where the fingertip is placed. The imaging element receives light reflected from the fingertip. The first light control part controls light, which is emitted from the light emitting diode and reaches the touching surface, so that the light is evenly incident to the touching surface. The pointing device improves detection accuracy and prevents malfunctions, even when there is deviation in an output from a light source. In addition, an electronic apparatus including an input device can be provided.
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