Time-measuring system
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United States of America Patent
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May 8, 2018
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N/A
app pub date -
Jan 28, 2015
filing date -
Feb 7, 2014
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Abstract
The invention relates to a time-measuring system for measuring the running time of a runner (2) comprising, for sensing the presence of the runner on a presence line (3, 4.3) crossing the running track, a signaling device (5), which has a light-beam source (6) and a light-beam receiver (7), ahead of the running track (4) and, in the light beam oriented parallel to the running track, a reflector (10). The reflector comprises a deflecting mirror (10.1) and an end mirror (10.2). Both are positioned on the presence line (3) on different sides of the running track (4) in the horizontal plane of the light beam of the light-beam source (6) (light-beam plane) and are oriented in the manner of a prism in two vertical planes in such a way that the light beam crosses the running track (3) between the two mirrors at a substantially right angle and is reflected to the light-beam receiver (7).
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