Light guide member, object detection apparatus, and vehicle
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A light guide member for an object detection apparatus for detecting an object adhered on a light translucent member based on change of quantity of reflection light received from the light translucent member includes a detection face where light exits to the light translucent member and 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 attachable to the light translucent member via the first intervening member; and a second intervening member disposed on the detection face attachable to the light translucent member via the second intervening member. The first intervening member has flexibility greater than flexibility of the second intervening member.
9 Citations
17 Claims
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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, and wherein curvature of the detection ace is smaller than curvature of the light translucent member facing the detection face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A light guide member configured for an object detection apparatus, the object detection apparatus including a light source, and an object sensor for detecting an object adhered on a surface of a light translucent member constituting a part 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 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 object sensor passes through, and a non-detection area where remaining part of the reflection light not to enter the object sensor 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, and wherein the detection face of the light guide member is configured to have curvature smaller than curvature of the light translucent member that (i) constitutes a part of the vehicle and (ii) faces said detection face of the light guide member. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification