Electro-optical liquid detector assembly
First Claim
1. An electro-optical liquid detector assembly comprising:
- a transparent substrate having a front surface attached to a portion of the interior surface of a wind-shield where the exterior surface of said wind-shield is wiped by a wiper blade;
a light emission element assembled within said substrate to emit luminous rays towards said wind-shield so as to cause internal reflection of the luminous rays between the interior and exterior surfaces of said wind-shield;
a light receiving element assembled within said substrate to receive the incident luminous rays reflected by the exterior surface of said wind-shield so as to produce an electric signal indicative of an amount of the incident luminous rays; and
a transparent resilient plate interposed between the interior surface of said wind-shield and the front surface of said substrate;
a holder fixedly mounted on a stationary member adjacent the outer circumference of the interior surface of said wind-shield to support said substrate thereon and push it towards the interior surface of said wind-shield through said resilient plate; and
means responsive to the electric signal from said light receiving element for producing an electric control signal in dependence upon a value of the electric signal.
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Accused Products
Abstract
An electro-optical liquid detector assembly comprises a transparent substrate attached at its front surface to a portion of the interior surface of a wind-shield where the exterior surface of the wind-shield is wiped by a wiper blade, a light emission element assembled within the substrate to emit luminous rays towards the wind-shield thereby to cause internal reflection of the luminous rays between the interior and exterior surfaces of the wind-shield, a light receiving element assembled within the substrate to receive the incident luminous rays reflected by the exterior surface of the wind-shield and to produce an electric signal indicative of an amount of the incident luminous rays, a transparent resilient sheet member interposed between the interior surface of the wind-shield and the front surface of the substrate, and a hoder fixedly mounted on a stationary member adjacent the periphery of the interior surface of the wind-shield to support the substrate thereon and press it towards the interior surface of the wind-shield through the resilient sheet member.
18 Citations
6 Claims
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1. An electro-optical liquid detector assembly comprising:
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a transparent substrate having a front surface attached to a portion of the interior surface of a wind-shield where the exterior surface of said wind-shield is wiped by a wiper blade; a light emission element assembled within said substrate to emit luminous rays towards said wind-shield so as to cause internal reflection of the luminous rays between the interior and exterior surfaces of said wind-shield; a light receiving element assembled within said substrate to receive the incident luminous rays reflected by the exterior surface of said wind-shield so as to produce an electric signal indicative of an amount of the incident luminous rays; and a transparent resilient plate interposed between the interior surface of said wind-shield and the front surface of said substrate; a holder fixedly mounted on a stationary member adjacent the outer circumference of the interior surface of said wind-shield to support said substrate thereon and push it towards the interior surface of said wind-shield through said resilient plate; and means responsive to the electric signal from said light receiving element for producing an electric control signal in dependence upon a value of the electric signal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification