Glass with area for collecting information

Abstract

A laminated glass includes a first glass sheet, a first intermediate layer, a second intermediate layer, and a second glass sheet. At least a portion of the second intermediate layer includes a first opaque print partially surrounding a window of the laminated glass for collecting information, and an edge of the second intermediate layer is located at a selected distance from an edge of the window for collecting information.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 343,319, filed on May 18, 2022, entitled “GLAZING HAVING ANAREAFORCOLLECTION OF INFORMATION,” the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present disclosure generally relates to a glazing having an area through which at least one sensor may be configured to collect information about the surrounding environment, such as a vehicle. Background Art

[0004] Information collection systems for autonomous driving functions in vehicles, including cameras and other sensors, are often mounted behind the glass of the vehicle. They require glass with minimal optical distortion in areas where the information collection system can collect data related to the surrounding environment, or in windows where the information is collected. Windows for collecting information are often surrounded by opaque black print to reduce stray light. Opaque prints on sheets of glass in a vehicle's laminated glass may cause optical distortion in areas surrounding the opaque print. The opaque print is often applied to the sheet of glass before the glass is bent. During the bending process, there may be local differences in heat absorption caused by the opaque print, which may cause distortion in areas of the glass adjacent to the opaque print. Summary of the invention

[0005] In one aspect, the present disclosure generally relates to a laminated glass, comprising: a first glass sheet, a first interlayer, a second interlayer, and a second glass sheet. At least a portion of the second interlayer comprises a first opaque print, the first opaque print partially surrounds a window for collecting information of the laminated glass, and an edge of the second interlayer is located at a selected distance from an edge of the window for collecting information.

[0006] In one embodiment, the edge of the second intermediate layer is at least 30 mm from the edge of the window for collecting information. In another embodiment, the edge of the second intermediate layer is at least 35 mm from the edge of the window for collecting information. In yet another embodiment, the edge of the second intermediate layer is at least 70 mm from the edge of the window for collecting information.

[0007] In some embodiments, the first opaque print does not reach the entire edge of the second interlayer.In addition, the second interlayer can be located between the first interlayer and the first glass sheet.

[0008] According to an embodiment, each of the first and second glass sheets of the laminated glass of the present disclosure may be 1.0 mm to 2.5 mm thick. In a preferred embodiment, each glass sheet may be 1.6 mm to 2.3 mm thick.

[0009] In one aspect, the horizontal optical distortion in the window for collecting information can be less than 120 mdpt, preferably less than 100 mdpt, or even more preferably less than 80 mdpt. In another embodiment, the laminated glass of the present disclosure can include a second opaque print on at least one of the first glass sheet and the second glass sheet.

[0010] The above simplified overview of exemplary aspects is intended to provide a basic understanding of the present disclosure. This overview is not an extensive review of all contemplated aspects, and is neither intended to identify key or important elements of all aspects, nor to describe the scope of any or all aspects of the present disclosure. Its sole purpose is to present one or more aspects in a simplified form as a preface to a more detailed description of the disclosure below. To achieve the foregoing, one or more aspects of the present disclosure include the exemplary and described features indicated in the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate one or more exemplary aspects of the disclosure and, together with the detailed description, serve to explain their principles and implementations.

[0012] Figure 1 shows glass according to an embodiment of the present disclosure; and

[0013] Figure 2 FIG. 1 shows a cross-sectional view taken at section AA according to an embodiment of the present disclosure. Figure 1 Cross section of glass. DETAILED DESCRIPTION

[0014] Various aspects of the present disclosure will be described with reference to the accompanying drawings, wherein the same reference numerals are used to refer to the same elements throughout. In the following description, for the purpose of explanation, many specific details are set forth to facilitate a thorough understanding of one or more aspects of the present disclosure. However, in some or all cases, it is apparent that any of the following aspects may be implemented without adopting the following specific design details.

[0015] According to the present disclosure, as will be referred to below Figure 1 and Figure 2 As fully described, an opaque print can be provided on an interlayer laminated between sheets of glass. In one aspect, such an interlayer can include an opaque print configured to provide a frame around a viewing area of, for example, an information collection system of a vehicle. The opaque print can be applied to one side of the interlayer. Figure 1 In the laminated glass 100), the printed interlayer can be laminated with another interlayer. In one embodiment, the size of the printed interlayer can be smaller than the other interlayer. Figure 2 As shown, the laminated structure may include a first glass sheet 202, a first full-size interlayer 204, a second interlayer 206 with an opaque print, and a second glass sheet 208. The first and second interlayers 204, 206 may be the same substrate, which may preferably be polyvinyl butyral. The second interlayer 206 may be laminated between the first interlayer 204 and the first glass sheet 202. In some embodiments, the second interlayer 206 may be laminated between the first interlayer 204 and the second glass sheet 208. When laminated in the glass, the opaque print on the second interlayer 206 may face the first interlayer 204.

[0016] According to aspects of the present disclosure, the second interlayer 206 with opaque printing may preferably be thinner than the first interlayer 204. In one embodiment, the second interlayer 206 may have a thickness of 20 μm to 50 μm. Preferably, the second interlayer is thin to avoid distortion of the laminated glass caused by thickness variations at the edges of the second interlayer 206. When there is a step change in the thickness of the interlayers 204, 206 between the glass sheets 202, 208, distortion may occur, which may be located near the thickness step and may decrease with the distance from the step location. When the second interlayer 104 (i.e., Figure 2 The edge of the second intermediate layer 206) is close to Figure 1 When the window 102 shown is used to collect information, such distortion may interfere with the information collection system installed in the vehicle. For example, the second intermediate layer 104, 206 may preferably have such a size that the edge of the second intermediate layer 104 is a distance away from the information collection system window 102 to minimize the distortion in the window 102. The distance between the edge of the second intermediate layer 104 and the information collection system window 102 is Figure 1 Indicated as "D".

[0017] According to aspects of the present disclosure, the distance D may depend on a variety of factors, including the thickness of the glass sheets 202, 208. The greater the thickness of the first and second glass sheets 202, 208, the greater the distance D may need to be. As the glass sheets 202, 208 become thicker, their flexibility decreases, which provides a more gradual thickness step change at the edge of the second interlayer 104, 206. Therefore, the optical distortion caused by the thickness change at the edge of the second interlayer 104, 206 can extend further from the edge of the second interlayer 104, 206 with thicker glass sheets 202, 208. For example, in the case where the glass sheets 202, 208 are each 1.1 mm, the laminated second interlayer 104, 206 can be extended so that the edge of the second interlayer 104, 206 is at least 30 mm, more preferably at least 35 mm, from the window for collecting information. In the case where the glass sheets 202, 208 are each 2.1 mm thick, the second intermediate layer 104, 206 may preferably extend at least 70 mm outside the window 102 for collecting information. Preferably, the first and second glass sheets 202, 208 may each have a thickness of 1.0 mm to 2.5 mm, more preferably 1.6 mm to 2.3 mm. In some embodiments of the present disclosure, the distance between the edge of the second intermediate layer 104, 206 and the edge of the window 102 for collecting information may be at least 30 mm, at least 50 mm, or at least 70 mm. The distance between the edge of the second intermediate layer 104, 206 and the edge of the window 102 for collecting information may be measured as the shortest distance between a point on the edge of the second intermediate layer and a point on the edge of the window for collecting information.

[0018] The laminated glass may also include opaque printing on one or both glass sheets 202, 208. The opaque printing on the glass sheets may include a border around the perimeter of the glass sheets. The opaque printing on the second intermediate layer 104, 206 may overlap or meet the glass opaque printing so that there is no space between the opaque printing when viewed by an observer of the laminated glass. In one embodiment, the glass opaque printing may include black enamel printing.

[0019] The second intermediate layer opaque print may or may not extend to the edge of the second intermediate layer 104, 206. In some embodiments, at least a portion of the second intermediate layer edge may not include opaque print, such as Figure 1As shown, a portion of the second intermediate layer edge does not include opaque printing. The distance between the opaque printing and the edge of the second intermediate layer 104, 206 can allow for a larger distance between the information collection system window and the second intermediate layer edge without increasing the opaque printing area. The area of ​​the opaque printing can be sufficient to obscure the information collection system installed in the vehicle. Large opaque printing is not desirable in situations where it may interfere with or limit the view of the vehicle driver and / or passengers.

[0020] Optical distortion may be measured as defined in ECE-R43 (United Nations Economic Commission for Europe (UN / ECE) Regulation No. 43 - Uniform provisions for the approval of safety glazing materials and their installation in vehicles). In addition, optical power may be measured using an ISRA Labscan-Screen 2D inspection device. The filter setting may be 3 / 2 / 0, corresponding to a physical length of 2 mm. A suitable masking filter setting may also be applied, such as 6 / 5 / 5 / R. The optical distortion of the window 102 for collecting information may include the average optical distortion of the window 102 for collecting information. In some embodiments, the optical distortion of the window 102 for collecting information may be the absolute minimum or the smallest absolute value of the optical distortion in the window 102 for collecting information.

[0021] Horizontal optical distortion can be defined as distortion caused by a beam deviation in the vertical direction, such as distortion caused by a horizontally aligned cylindrical lens. Optical distortion can be measured in milli-diopters (mdpt). The horizontal optical distortion in the window 102 for collecting information can preferably be less than 120 mdpt, more preferably less than 100 mdpt, and even more preferably less than 80 mdpt.

[0022] The above description of the present disclosure is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the common principles defined herein may be applied to other variations without departing from the spirit or scope of the present disclosure. In addition, the above description in conjunction with the accompanying drawings describes examples and does not represent the only example that may be implemented or within the scope of the claims.

[0023] In addition, although the elements of the described aspects and / or embodiments may be described or claimed in the singular, the plural is also contemplated unless expressly stated to be limited to the singular. In addition, all or part of any aspect and / or embodiment may be used together with all or part of any other aspect and / or embodiment unless otherwise stated. Therefore, the present disclosure is not limited to the examples and designs described herein, but should have the widest scope consistent with the principles and novel features disclosed herein.

[0024] In the event that the above description and the accompanying drawings disclose any additional subject matter that is not within the scope of the claims presented herein, the present disclosure is not dedicated to the public, and the right to file one or more applications to claim such additional inventions is reserved. Furthermore, although narrow claims are presented, it should be recognized that the scope of the invention (or inventions) is much broader than that presented by the present claims. It is intended that the broader claims be filed in an application that claims priority to this application upon conversion.

Claims

1. A laminated glass comprising: First glass sheet; First intermediate layer; Second intermediate layer; as well as The second glass sheet, Wherein at least a portion of the second intermediate layer includes a first opaque print, the first opaque print partially surrounds the window for collecting information of the laminated glass, and an edge of the second intermediate layer is located at a selected distance from an edge of the window for collecting information.

2. The laminated glass according to claim 1, wherein: The edge of the second intermediate layer is at least 30 mm away from the edge of the window for collecting information.

3. The laminated glass according to claim 1, wherein: The edge of the second intermediate layer is at least 35 mm away from the edge of the window for collecting information.

4. The laminated glass according to claim 1, wherein: The edge of the second intermediate layer is at least 70 mm away from the edge of the window for collecting information.

5. The laminated glass according to claim 1, wherein: The first opaque print does not reach the entire edge of the second intermediate layer.

6. The laminated glass according to claim 1, wherein: The second intermediate layer is located between the first intermediate layer and the first glass sheet.

7. The laminated glass according to claim 1, wherein: Each of the first glass sheet and the second glass sheet is 1.0 mm to 2.5 mm thick.

8. The laminated glass according to claim 7, wherein: Each of the first glass sheet and the second glass sheet is 1.6 mm to 2.3 mm thick.

9. The laminated glass according to claim 1, wherein: The horizontal optical distortion in the window for collecting information is less than 120 mdpt.

10. The laminated glass according to claim 9, wherein: The horizontal optical distortion in the window for collecting information is less than 100 mdpt 11. The laminated glass according to claim 10, wherein: The horizontal optical distortion in the window for collecting information is less than 80mdpt.

12. The laminated glass of claim 1, further comprising a second opaque print on at least one of the first glass sheet and the second glass sheet.

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