Rain sensor operation on solar reflective glass
First Claim
Patent Images
1. A device for detecting the presence of moisture on an outside surface of a windshield comprising:
- a first glass layer and a second glass layer forming the windshield, the first glass layer for securing the device, and the second glass layer forming the outside surface of the windshield;
a reflective layer disposed between the first glass layer and the second glass layer;
an emitter for transmitting energy through the first and second layers;
a sensor for receiving energy reflected from the outside surface;
an energy absorbing member for contacting the first glass layer, the energy absorbing member disposed between the emitter and the sensor for absorbing energy reflected from the reflective layer; and
a controller for monitoring the energy received by the sensor and determining the presence of moisture.
3 Assignments
0 Petitions
Accused Products
Abstract
A device for detecting the presence of moisture on an outside surface of a windshield is disclosed. The device includes am emitter for transmitting energy, a sensor for receiving energy, an energy absorbing member and a controller for monitoring energy.
61 Citations
14 Claims
-
1. A device for detecting the presence of moisture on an outside surface of a windshield comprising:
-
a first glass layer and a second glass layer forming the windshield, the first glass layer for securing the device, and the second glass layer forming the outside surface of the windshield;
a reflective layer disposed between the first glass layer and the second glass layer;
an emitter for transmitting energy through the first and second layers;
a sensor for receiving energy reflected from the outside surface;
an energy absorbing member for contacting the first glass layer, the energy absorbing member disposed between the emitter and the sensor for absorbing energy reflected from the reflective layer; and
a controller for monitoring the energy received by the sensor and determining the presence of moisture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A rain sensor for detecting the presence of rain on an outside surface of a windshield which is reflective of light energy at the infrared spectrum, said windshield having a first glass layer, a second glass layer, and an infrared reflective layer disposed therebetween, and wherein the rain sensor is secured to an inside surface of the first glass layer and the second glass layer forms the outside surface of the windshield, said rain sensor comprising:
-
a photoemitter for transmitting infrared light energy through the first and second glass layers and toward the outside surface;
a photodetector for receiving infrared light energy reflected from the outside surface;
an energy absorbing member for contacting the first glass layer, the energy absorbing member disposed between the photoemitter and the photodetector for absorbing infrared light energy reflected from the reflective layer; and
a controller for monitoring the infrared light energy received by the photodetector and determining the presence of moisture on the outside surface;
wherein a portion of the infrared light energy transmitted from the photoemitter passes through the reflective layer, and is reflected from the outside surface toward the photodetector. - View Dependent Claims (11, 12, 13, 14)
-
Specification