Electrically heating windshield glass having a substantially uniform thermal distribution

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area and diameters of the electrical heating wires which are located in a vicinity of a center line of said glass plates are greater than diameters of the electrical heating wires which are located in a vicinity of the peripheral portions of the glass plates, such that the diameter of each of the electrically heating wires stepwisely decreases in response to a decrease of a distance between the bus bars.

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area in which a space between adjacent electrically heating wires in a vicinity of a center line of the glass plates is smaller than a space between adjacent electrically heating wires located in a vicinity of the peripheral portions of the glass plates, such that the space between adjacent electrically heating wires continuously increases in response to a decrease of a distance between the bus bars.

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area in which a space between adjacent electrically heating wires in a vicinity of a center line of the glass plates is smaller than a space between adjacent electrically heating wires in a vicinity of the peripheral portions of the glass plates, such that the space between adjacent electrical heating wires stepwisely increases in response to a decrease of a distance between the bus bars.

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area in which a diameter along an entire length of each of the electrically heating wires and a space between adjacent electrically heating wires along an entire length of the adjacent electrically heating wires are continuously changed in response to a change of a distance between the bus bars.

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area in which a diameter along an entire length of each of the electrically heating wires and a space between adjacent electrically heating wires along an entire length of the adjacent electrically heating wires are stepwisely changed in response to a change of a distance between the bus bars.

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area in which a diameter along an entire length of each of the electrically heating wires is stepwisely changed, and a space between adjacent electrically heating wires along an entire length of the adjacent electrical heating wires is continuously changed, in response to a change of a distance between the bus bars.

An electrically heating windshield glass which comprises:

• first and second glass plates;
• a resinous interlayer interposed between the first and second glass plates;
• at least a pair of bus bars provided at peripheral portions of the glass plates and between the glass plates;
• and
• a number of electrically heating wires connected between a pair of the bus bars, wherein the windshield glass has at least a substantially triangular area in which a diameter along an entire length of each of the electrically heating wires is continuously changed, and a space between adjacent electrically heating wires along an entire length of the adjacent electrically heating wires is stepwisely changed, in response to a change of a distance between the bus bars.