Laminated glass with photosensitive element and automatic device for turning on and off lights of a motor vehicle
First Claim
1. A laminated glass including an incorporated photosensitive element being a thin photodiode buried in the plastic interlayer of said laminated glass, the sensitive face of said photodiode being positioned in said plastic interlayer substantially parallel to at least one of the outerlayers of said laminated glass.
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Accused Products
Abstract
A laminated glass of the present invention includes as a photosensitive element a photodiode of such thickness that it can be buried in the plastic interlayer of the laminated glass between two outside glass sheets of the glass. The photodiode is coated in a plastic compatible with that from which the interlayer is made and mounted along one of the side edges of the glass, so that conductors from the diode and their terminals project out from the glass and can be connected to any suitable electric circuit. The electric circuit for use with the diode can be a lighting circuit of a motor vehicle so that the photodiode automatically controls turning on of the lights of the vehicle when ambient light falls below a certain threshold and turning off the same lights when ambient light exceeds a second threshold.
18 Citations
8 Claims
- 1. A laminated glass including an incorporated photosensitive element being a thin photodiode buried in the plastic interlayer of said laminated glass, the sensitive face of said photodiode being positioned in said plastic interlayer substantially parallel to at least one of the outerlayers of said laminated glass.
- 6. An automatic device for turning on and off the lights of a motor vehicle comprising a laminated glass including a thin photodiode buried in the plastic interlayer of said laminated glass, the sensitive face of said photodiode being positioned in said plastic interlayer substantially parallel to at least one of the outerlayers of said laminated glass, conductors connected to said photodiode, said conductors mounted in parallel to a lighting circuit for a motor vehicle to control by an amplification circuit the lights of said vehicle, said lights being turned on when the ambient light decreases below a certain threshold and turning off when ambient light exceeds a second threshold.
Specification