Headlamp for bicycle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 31, 2007
app pub date -
Nov 17, 2006
filing date -
Nov 25, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A headlamp for a bicycle includes an LED element, a power supply device supplying electric power to the LED element, a vibration sensor detecting vibration, a luminance detector detecting ambient illuminance, and a switching device providing ON-OFF control of electrical connection between the LED element and the power supply device in response to a result detected by the vibration sensor and a result detected by the illuminance detector. The vibration sensor has a helical spring and a central metal conductive wire passing through the helical spring, and the helical spring and the conductive wire are disposed to extend in a direction obliquely intersecting with a horizontal direction and a vertical direction when the headlamp is attached.
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