MULTI-AREA MEASURING RAIN SENSOR
First Claim
1. A multi-area measuring rain sensor of a vehicle, comprising:
- one or more light emitters for emitting light;
a reflection plate arranged to correspond to each of the light emitters while being spaced apart from the corresponding light emitter by a predetermined distance;
a glass for again reflecting the light reflected by the reflection plate, thereby forming sensing areas; and
one or more light receivers for receiving the reflected light again reflected by the glass,wherein the reflection plate splits the light emitted from the corresponding light emitter into a plurality of reflected light beams respectively having different reflection angles while reflecting the light,wherein the number of the reflected light beams split by the reflection plate is equal to a maximum number of the sensing areas.
1 Assignment
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Accused Products
Abstract
A multi-area measuring rain sensor is provided with a reflection plate having different reflection angles, to reflect light emitted from a light emitter along different light paths, thereby measuring an amount or quantity of raindrops through sequential time division of light according to differences of the light paths of the reflected light. In particular, the multi-area measuring rain sensor is capable of forming, at a glass, sensing areas equal in number to a maximum number of light receivers, using light beams split from light emitted from each light emitter while having different reflection angles by the reflection plate, which has different reflection angles to reflect light emitted from the light emitter along the different light paths.
5 Citations
11 Claims
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1. A multi-area measuring rain sensor of a vehicle, comprising:
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one or more light emitters for emitting light; a reflection plate arranged to correspond to each of the light emitters while being spaced apart from the corresponding light emitter by a predetermined distance; a glass for again reflecting the light reflected by the reflection plate, thereby forming sensing areas; and one or more light receivers for receiving the reflected light again reflected by the glass, wherein the reflection plate splits the light emitted from the corresponding light emitter into a plurality of reflected light beams respectively having different reflection angles while reflecting the light, wherein the number of the reflected light beams split by the reflection plate is equal to a maximum number of the sensing areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification