Laminated glass for vehicle

Patent metadata

Field	Value
Publication number	US-10773496-B2
Application number	US-201816043892-A
Country	US
Kind code	B2
Filing date	Jul 24, 2018
Priority date	Jul 26, 2017
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

There is provided a laminated glass for vehicle with an information acquisition device, suppressing distortion in a boundary between a light shielding region provided around a transmission region of signals and the transmission region, and being excellent in productivity. A laminated glass for vehicle, which has: a pair of glass plates; and an intermediate adhesive film between the pair of glass plates, wherein the intermediate adhesive film has one continuous transmission region which includes an optical opening for transceiving an optical signal of an information acquisition device disposed inside a vehicle and transceiving the optical signal with outside the vehicle, and a light shielding region provided around a whole periphery of the optical opening except a part thereof, and a light shielding region of the laminated glass for vehicle corresponding to the light shielding region of the intermediate adhesive film has a visible light transmittance of 3% or less.

First claim

What is claimed is:

1. A laminated glass for a vehicle, comprising:
a pair of glass plates; and
an intermediate adhesive film between the pair of glass plates,
wherein the intermediate adhesive film has (i) one continuous transmission region which includes an optical opening for transceiving an optical signal of an information acquisition device disposed inside a vehicle and transceiving the optical signal to an exterior side of the vehicle, and (ii) a light shielding region provided around a whole periphery of the optical opening except a part thereof, and
wherein a light shielding region of the laminated glass for the vehicle corresponding to the light shielding region of the intermediate adhesive film has a visible light transmittance of 3% or less.

2. The laminated glass for the vehicle according to claim 1 ,
wherein the light shielding region of the intermediate adhesive film is made of a colored intermediate adhesive film.

3. The laminated glass for the vehicle according to claim 1 ,
wherein the light shielding region of the intermediate adhesive film has a configuration in which a light shielding film is sandwiched between a pair of transparent intermediate adhesive layers.

4. The laminated glass for the vehicle according to claim 1 , further comprising:
a ceramic light shielding layer provided in a peripheral edge portion of either one of principal surfaces of the glass plates in a manner not to adjoin the optical opening.

5. The laminated glass for the vehicle according to claim 4 ,
wherein the ceramic light shielding layer is provided on a vehicle interior side principal surface of the glass plate located on a vehicle interior side among the glass plates and has a mounting portion on which the information acquisition device is mounted in a neighborhood of an outer edge of the optical opening.

6. The laminated glass for the vehicle according to claim 5 ,
wherein the ceramic light shielding layer is provided in a dotted pattern in a region close to the optical opening.

7. The laminated glass for the vehicle according to claim 1 ,
wherein a plurality of the optical openings are provided.

8. The laminated glass for the vehicle according to claim 1 , further comprising:
a conductive layer capable of carrying a current in the optical opening vicinity including the optical opening.

9. The laminated glass for the vehicle according to claim 1 ,
wherein the transmission region of the intermediate adhesive film consists of a multilayer film of three layers or more having a sound insulating property.

Assignees

• Agc Inc

Inventors

• Aoki Tokihiko
• Sadakane Shunsuke
• Yajima Toshimi

Classifications

• B32B17/10293

  Edge features, e.g. inserts or holes · CPC title

• B32B27/40

  comprising polyurethanes · CPC title

• B32B27/365

  comprising polycarbonates · CPC title

• B32B27/18

  characterised by the use of special additives · CPC title

• B32B33/00

  Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class · CPC title