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Portable active lighting device or same installed on a bicycle

  • US 10,532,786 B1
  • Filed: 07/12/2019
  • Issued: 01/14/2020
  • Est. Priority Date: 08/28/2018
  • Status: Active Grant
First Claim
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1. A portable active lighting device for a bicycle,wherein the device comprises:

  • at least one power supply source,a first optical system with a first light source arrangement for long-distance illumination and controlled by a control unit connected to the power supply source, and each whereof, or groups whereof, is/are intended to generate a light beam having a different orientation direction at the output of the first light source arrangement,a second optical system with a second light source arrangement for short-distance illumination and controlled by the control unit connected to the power supply source, and each whereof, or groups whereof, is/are intended to generate a light beam having a different orientation direction at the output of the second light source arrangement,a light sensor for determining the light intensity of a location wherein the bicycle with the lighting device is situated and for supplying a measurement signal to the control unit, which is arranged so as to automatically activate at least the second optical system if the ambient light intensity falls below a determined light threshold, and so as to adapt the light intensity of some light sources or of some groups of light sources of the first optical system if activated and/or of the second optical system, anda speed sensor for determining the speed of the bicycle in use on a path or road, and for supplying a measurement signal to the control unit in order to activate the first light source arrangement of the first optical system from at least one determined speed threshold.

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