AUTOMOBILE WINDOW GLASS

• US 20130300146A1
• Filed: 07/12/2013
• Published: 11/14/2013
• Est. Priority Date: 01/14/2011
• Status: Abandoned Application

• Current Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Original Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Inventors: Sawaya, Takuma, Ogawa, Masanobu, Ooe, Junzo, Kitagawa, Takashi
• Application Number:
  US13/941,368
• Publication Number:
  US 20130300146A1
• Time in Patent Office: Days
• US Class Current: 296/84.1
• CPC Class Codes: B60J 1/02 arranged at the vehicle front , e.g. structure of the glazing, mounting of the glazing on windscreen mounted antenna wire H01Q1/1271
• CPC Class Codes: B60J 3/007 Sunglare reduction by coatings, interposed foils in laminar windows, or permanent screens layered glass products B32B17/00; process of coating windows C03C17/00
• CPC Class Codes: E06B 5/18 against harmful radiation against heat E06B5/16
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: G02B 5/282 reflecting for infrared and transparent for visible light, e.g. heat reflectors, laser protection
• CPC Class Codes: H01Q 1/1271 for mounting on windscreens

Abstract

The present invention relates to a window glass for a vehicle, including: an electromagnetic wave transmitting portion which transmits a predetermined electromagnetic wave, and is positioned above a position where a rearview mirror provided at a front and upper portion inside of the vehicle is projected on the window glass for a vehicle in a longitudinal direction and a horizontal direction of the vehicle, in which a distance in a width direction of the electromagnetic wave transmitting portion is larger than a width which is projected in a horizontal direction on the window glass for a vehicle at 45 degree angle towards each of both sides in a width direction from a central portion in a width direction of the rearview mirror relative to a longitudinal direction of the vehicle.

Claims

1. A window glass for a vehicle, attached to a body flange of a front side of the vehicle at a circumferential portion thereof, comprising:

an infrared ray shielding portion which reflects or absorbs infrared rays on a large part of the window, and

an electromagnetic wave transmitting portion which transmits a predetermined electromagnetic wave, and is positioned above a position where a rearview mirror provided at a front and upper portion inside of the vehicle is projected on the window glass for a vehicle in a longitudinal direction and a horizontal direction of the vehicle,

wherein a distance in a width direction of the electromagnetic wave transmitting portion is larger than a width which is projected in a horizontal direction on the window glass for a vehicle at 45 degree angle towards each of both sides in a width direction from a central portion in a width direction of the rearview mirror relative to a longitudinal direction of the vehicle.

2. The window glass for a vehicle according to claim 1, wherein a lower edge of the electromagnetic wave transmitting portion is spaced 150 mm or more from a tip portion of the body flange which is positioned at upper side thereof.

3. The window glass for a vehicle according to claim 1, wherein the infrared ray shielding portion is situated inwards of the tip portion of the body flange, and the electromagnetic wave transmitting portion is provided so that an upper end portion of the infrared ray shielding portion recedes into inwards thereof.

4. The window glass for a vehicle according to claim 1, wherein the distance in a width direction of the electromagnetic wave transmitting portion is larger than a width which is projected in a horizontal direction on the window glass for a vehicle at 60 degree angle towards each of both sides in a width direction from a central portion in a width direction of the rearview mirror relative to a longitudinal direction of the vehicle.

5. The window glass for a vehicle according to claim 1, wherein the electromagnetic wave transmitting portion is a frequency selective surface in which a thermal wave reflecting film is formed in a mesh-shape.