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Laminated glass for vehicle

A technology for laminated glass and vehicles, applied in vehicle parts, glass/slag layered products, layered products, etc., can solve problems such as optical deformation of the intermediate layer, and achieve the effect of effective production, efficient manufacturing steps, and improved integrity

Inactive Publication Date: 2007-09-19
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology solves problems associated with double image displays on cars due to their large size (height) and heavy weights. By creating an optical element called a windscreen made up from two layers: one includes multiple transparent plates separated by air space filled spaces; another consists only of single plate material without any interlayers between them. These elements are then assembled together through adhesive bondings like glue or cement. Overall, these technical improvements improve vehicle safety performance while reducing costs compared to traditional methods used today.

Problems solved by technology

The technical problem addressed in this patents relates to achieving good visual clarity without causing unwanted double images during driving conditions like rain glare or low fogging levels. Additionally, current solutions involve adding extra components to increase the overall size of the LCD module, making them bulky and expensive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0062] 1 and 2 are respectively an example of the structure of the laminated glass of the present invention and a cross-sectional view of a head-up display using the laminated glass.

[0063] As shown in FIG. 1, in a laminated glass 10, a multilayer interlayer 12 made of resin is sandwiched between curved laminated glass plates 11a and 11b. Each glass sheet 11 has a uniform thickness, and the thickness of the interlayer 12 has a wedge-shaped configuration in which the upper side is thicker and the lower side is thinner. Since the glass plates 11 are combined so as to sandwich the wedge-shaped interlayer sandwich 12, the positions of the first face and the second face which are the surfaces of the glass plate 11a are different from the positions of the third face and the fourth face which are the surfaces of the glass plate 11b. parallel. As a result, the laminated glass 10 has a wedge-shaped configuration in thickness.

[0064] The interlayer 12 is a multilayer film comprisi...

no. 2 approach

[0107] Fig. 4 is a cross-sectional view showing an example of the structure of the laminated glass of the present invention. In the same way as in the first embodiment, the thickness of the interlayer 12 is a wedge-shaped configuration, the upper side being thicker and the lower side being thinner, and the glass plate 11 is bonded to the wedge-shaped interlayer. As a result, the thickness of the laminated glass has a wedge-shaped configuration.

[0108] The interlayer 12 is a multilayer film comprising skin layers 12a and 12b and a sound-insulating layer 12c sandwiched between the skin layers. The interlayer 12 is bonded to the second face of the glass plate 11a and the third face of the glass plate 11b to form a layer Pressed glass 10. The surface layers 12a and 12b are each a resin layer of uniform thickness, and the sound-insulating layer 12c is sandwiched between them, having a wedge-shaped thickness configuration with a thicker upper side and a thinner lower side.

[01...

no. 3 approach

[0113] Fig. 5 is a cross-sectional view showing an example of the structure of the laminated glass of the present invention. In the same manner as in the first embodiment, the thickness of the interlayer 12 is in a wedge-shaped configuration with a thicker upper side and a thinner lower side, and the glass plate 11 is bonded to the wedge-shaped interlayer so as to sandwich the interlayer. As a result, the thickness of laminated glass 10 has a wedge-shaped configuration.

[0114] The interlayer is a multilayer film comprising skin layers 12a and 12b and a sound-insulating layer 12c sandwiched between the skin layers. The interlayer 12 is bonded to the second side of the glass sheet 11a and the third side of the glass sheet 11b to form a laminate. glass10. The surface layers 12a and 12b and the sound-insulating layer 12c each have a wedge-shaped configuration with a thicker upper side and a thinner lower side, and the sound-insulating layer 12c is composed of a resin having a h...

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Abstract

The present invention provides, in a HUD device employing a high-functional windshield such as a sound-insulation glass having a multi-layer interlayer, a windshield for a vehicle which does not produce double images and has excellent visibility without deteriorating functionality of the windshield. In a laminated glass having a multi-layer interlayer having a wedge-shaped thickness profile sandwiched by glass sheets, the multi-layer interlayer has layers having different hardness, the thickness of first resin layers having high hardness is at least 0.3 mm in a region within 400 mm from a lower side, which prevents the generation of optical distortion of the laminated glass and efficiently prevents double display images.

Description

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Claims

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Application Information

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Owner ASAHI GLASS CO LTD
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