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Light guide member, object detection apparatus, and vehicle

  • US 9,494,685 B2
  • Filed: 08/25/2014
  • Issued: 11/15/2016
  • Est. Priority Date: 09/06/2013
  • Status: Active Grant
First Claim
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1. A light guide member configured for an object detection apparatus, the object detection apparatus including a light source unit, and a detection unit for detecting an object adhered on a surface of a light translucent member of a vehicle based on change of light quantity of reflection light received from the light translucent member when light exiting from the light source unit is reflected from the light translucent member having a face having curvature,the light guide member comprising:

  • a detection face where the exiting light exits to a rear face of the light translucent member and the reflection light reflected from the light translucent member enters, the detection face including a detection area where a part of the reflection light to enter the detection unit passes through, and a non-detection area where remaining part of the reflection light not to enter the detection unit passes through;

    a first intervening member disposed on the detection face, a part or entire of the detection area attachable to a rear face of the light translucent member via the first intervening member; and

    a second intervening member disposed on the detection face, a part or entire of the non-detection area attachable to the rear face of the light translucent member via the second intervening member,wherein the first intervening member has flexibility greater than flexibility of the second intervening member, andwherein curvature of the detection ace is smaller than curvature of the light translucent member facing the detection face.

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