Electro-optical liquid detector assembly

Details Electro-optical liquid detector assembly Electro-optical liquid detector assembly

1984-06-22

1986-05-20

Willis, Davis L.

Optics: measuring and testing

With sample preparation

Depositing particles on optical surface

15250C, 318483, 318DIG2, G01N 2100

Patent

active

045897719

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.

REFERENCES:
patent: 4355271 (1982-10-01), Noack
patent: 4481450 (1984-11-01), Watanabe et al.

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