Nippon Sheet Glass Company, Limited

Satoshi Kanki

Hisashi Ogawa

Takahiro Asai

Hideaki Oshima

Takahiro Shimomura

Hisashi Asaoka

Takumitsu Sakamoto

Kenshu Ando

Shinji Maezono

Atsuya Kanno

Ian Mackley

A windshield according to the present invention includes a first glass plate that includes a first surface and a second surface, a second glass plate that includes a first surface and a second surface and is arranged such that the first surface of the second glass plate faces the second surface of the first glass plate, and an intermediate film that is sandwiched between the first glass plate and the second glass plate. The first glass plate includes a first end portion and a second end portion that is opposite to the first end portion, and a thickness of the first glass plate decreases from the first end portion toward the second end portion. In the first glass plate, a surface compressive stress on the first end portion side is higher than a surface compressive stress on the second end portion side.

Windshield

A laminated glass according to the present invention includes an outer glass sheet, an inner glass sheet that is arranged opposite to the outer glass sheet and has a smaller thickness than that of the outer glass sheet, and an interlayer sandwiched between the outer glass sheet and the inner glass sheet. A transmittance with respect to light having a wavelength of 850 to 950 nm is 30 to 80%. The outer glass sheet has a thickness of 1.8 to 2.3 mm. The inner glass sheet has a thickness of 0.6 to 2.0 mm. The interlayer includes a plurality of layers including at least a core layer. The core layer has a Young's modulus of 1 to 20 MPa at a frequency of 100 Hz and a temperature of 20&#xb0; C., the Young's modulus being lower than the Young's modulus of the other layer.

Laminated glass

A windshield according to the present invention is a windshield to which an information acquisition device that emits and/or receives light to acquire information from an outside of a vehicle can be attached, and that includes a glass sheet, and a mask layer that is formed on the glass sheet and blocks a visual field from the outside of the vehicle, and at least one opening is formed in the mask layer. The glass sheet and the mask layer have different heat shrinkage percentages and are molded together by being heated. The information acquisition device is configured to be capable of using the information while reducing an influence of distortion that occurs in a predetermined range from an inner peripheral edge of the opening toward a center of the opening due to the molding.

A method for detecting a flaw accompanied with an optical defect if any on or in a sheet-like transparent body which is moved, and determine its type comprises placing an illuminator on one side of a sheet-like transparent body, and placing a (one-dimensional) image pickup on the opposite side. The illuminator means comprises lighting and darkening portions, and the image pickup is placed relative to the illuminator such that the boundary between the portions appears on the image pickup as a straight line in parallel with the long axis of the pickup. Image data created from the image pickup, are subjected to contrast enhancement to provide contrast enhanced image data which are displayed as a contrast enhanced image. The sequence (flaw pattern) of light spots and dark spots appears in the enhanced image as of the sheet-like transparent body is moved, and determines the type of flaw.

Growing community of inventors

Tokyo, Japan

Satoshi Kanki