Patent ID: 11897810
Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A windshield for an automobile on which at least one information acquisition device configured to acquire information from outside of a vehicle by emitting and/or receiving light is to be suitably arranged, the windshield comprising:
a laminated glass including at least one information acquisition region through which the light passes; and
an antifog sheet in which at least a sticky layer, a substrate film, and an antifog layer are layered in this order, the sticky layer being disposed on a vehicle interior side of the information acquisition region of the laminated glass,
wherein the laminated glass comprises an inner glass plate arranged on a vehicle interior side, an outer glass plate arranged on a vehicle exterior side, and an interlayer arranged between the inner glass plate and the outer glass plate,
the outer glass plate and the inner glass plate are both made of float glass and each have principal top and bottom surfaces,
the top and bottom surfaces have different surface concentrations of tin oxide with the bottom surface having a higher tin oxide concentration than the top surface,
the bottom surface has a tin oxide concentration of 1 to 10 mass %,
the top surface has a tin oxide concentration of 0.1 to 1 mass %,
the sticky layer of the antifog sheet is directly attached to the bottom surface of the inner glass plate, and
the top surface of the inner glass plate and the top surface of the outer glass plate are in contact with the interlayer.