CN108407580A - Motor vehicle and its windshield - Google Patents
Motor vehicle and its windshield Download PDFInfo
- Publication number
- CN108407580A CN108407580A CN201710072677.XA CN201710072677A CN108407580A CN 108407580 A CN108407580 A CN 108407580A CN 201710072677 A CN201710072677 A CN 201710072677A CN 108407580 A CN108407580 A CN 108407580A
- Authority
- CN
- China
- Prior art keywords
- glass
- inner layer
- angle
- image
- wedge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/001—Double glazing for vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Instrument Panels (AREA)
Abstract
The present invention is suitable for the accessory technical field of motor vehicle, and the automobile windscreen provided includes inner layer glass and glass outer and middle film layer；The head up display below instrument desk is installed on to project its internal image to being respectively formed main picture and secondary picture on inner layer glass and glass outer, there is middle film layer the angle of wedge for eliminating main picture and the secondary ghost image as between, the bending curvature radius vertically of automobile windscreen to be more than 8000 so that main as imaging region and secondary as imaging region is equivalent to plane.The automobile windscreen has the angle of wedge of the main picture of elimination and the secondary ghost image as between using the middle film layer being arranged between inner layer glass and glass outer, and in the image information for seeing the internal image, main picture and secondary picture overlap driver, avoid the generation of ghost image；The bending curvature radius vertically of the automobile windscreen is more than 8000 so that the imaging region of the imaging region of main picture and secondary picture is equivalent to plane, simplifies the calculating of the angle of wedge.
Description
Technical field
It keeps out the wind the invention belongs to the accessory technical field of motor vehicle more particularly to a kind of automobile windscreen and with this
The motor vehicle of glass.
Background technology
For automobile driver, ghost image may be very bothersome.In principle, two distinct types of
It is distinguishing between ghost image, that is to say, that on the one hand it is those of generation ghost image in the transmission under certain contrast adjusting,
And on the other hand it is the ghost image seen when using head-up display (Head Up Display, hereinafter referred to as HUD).
When using HUD, include by be supplied to driver by the optical device for being arranged on driver side baffle top
On the image transmission to windshield of significant data.Image is reflected to driver on the windshield, and what driver saw answers
This is the virtual image of motor vehicle front situation.But driver can be appreciated that the individual image of two width, that is, by windshield
The piece image and another width additional image generated by the reflection on windshield outer surface that reflection on surface generates
I.e. so-called ghost image.
Invention content
The purpose of the present invention is to provide a kind of automobile windscreens, it is intended to solve motor vehicle in the prior art and keep out the wind glass
Glass there is technical issues that when using head-up display.
The invention is realized in this way a kind of automobile windscreen, includes the inner layer glass and outer layer of facing setting
Glass and the middle film layer being located between the inner layer glass and the glass outer, and with the top edge being oppositely arranged
And lower edge, the automobile windscreen are arranged along the top edge to the lower edge in bending；It is installed under instrument desk
The head up display of side projects its internal image to being respectively formed main picture and pair on the inner layer glass and the glass outer
Picture, the middle film layer have an angle of wedge for eliminating the main picture and the secondary ghost image as between, and the motor vehicle keeps out the wind glass
The bending curvature radius vertically of glass is more than 8000 so that described main as imaging region and secondary as imaging region is equivalent to
Plane.
Further, the angle of wedge size is calculated using the reflection of light and the law of refraction.
Further, angle of wedge δ is calculated using following formula：
N sin γ '=sin γ (1)
Wherein, n is the refractive index of the inner layer glass and the glass outer；
γ is the incidence angle that the light 1 that image source is sent out is incident on the inner layer glass inner surface, unit rad；γ ' is
It is incident to the angle of emergence of the inner layer glass glazed thread, unit is rad, and the light 1 is reflected by the inner layer glass to be put into
Human eye forms the virtual image in the main picture；
β is the incidence angle that the light 2 that image source is sent out is incident on the inner layer glass inner surface, and unit is rad, the light
Line 2 reflects input human eye by the glass outer, and the virtual image is formed as in secondary；
T is the thickness of the windshield, unit mm；
S is distance of the image source to the inner layer glass pip, unit mm；
L is distance of the inner layer glass pip to human eye, unit mm；
δ is the angle of wedge, unit mrad.
Further, an angle of wedge size is determined according to the average value of β, S and L so that the virtual image in the main picture
It is overlapped with the secondary virtual image as in.
Further, to the incident different light of the different location of the inner layer glass around the case source, tracking is every
One light calculates its corresponding β, S and L value.
Further, the middle film layer gradually thickens from the lower edge to the direction of the top edge.
Further, the thickness at the thickness minimum of the middle film layer is 0.76mm.
The present invention also provides a kind of motor vehicles, including instrument desk, the windshield being set in front of the instrument desk, peace
Loaded on head up display on the instrument desk and above-mentioned windshield.
The present invention having the technical effect that compared with the existing technology：The automobile windscreen is used for for described on instrument desk
The internal image of head up display is projected and is formed main picture and secondary picture, by the inner layer glass and the glass outer
Between middle film layer is set, and the middle film layer has the angle of wedge for eliminating the main picture and the secondary ghost image as between, drives
In the image information for seeing the internal image, the main picture and the secondary picture overlap member, avoid the generation of ghost image；And by
It is more than 8000 in the bending curvature radius vertically of the automobile windscreen, then so that the imaging area of the main picture
The imaging region of domain and the secondary picture is equivalent to plane, simplifies the calculating of the angle of wedge, computational methods are simple.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to the embodiment of the present invention or the prior art
Attached drawing needed in description is briefly described, it should be apparent that, drawings described below is only the present invention's
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the imaging arrangement schematic diagram that the embodiment of the present invention provides windshield；
Fig. 2 is the schematic diagram calculation of the angle of wedge in windshield in Fig. 1；
Fig. 3 is the structural schematic diagram of windshield in Fig. 1.
Reference sign：
| 10 | Windshield | 20 | Instrument desk |
| 12 | Inner layer glass | 30 | Head up display |
| 14 | Glass outer | A | Main picture, secondary picture |
| 16 | Middle film layer |
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.
Fig. 1 to Fig. 3 is please referred to, automobile windscreen 10 provided in an embodiment of the present invention includes the internal layer of facing setting
Glass 12 and glass outer 14 and the middle film layer 16 being located between the inner layer glass 12 and the glass outer 14, and
With the top edge and lower edge being oppositely arranged, the automobile windscreen 10 is along the top edge to the lower edge in curved
Song setting；The head up display 30 of the lower section of instrument desk 20 is installed on to project its internal image to the inner layer glass 12 and described
Main picture is respectively formed on glass outer 14 and secondary as A, the middle film layer 16 has for eliminating the main picture and the secondary picture
Between ghost image the angle of wedge, the bending curvature radius vertically of the automobile windscreen 10 is more than 8000 so that described
It is main as imaging region and secondary as imaging region is equivalent to plane.
Automobile windscreen 10 provided in an embodiment of the present invention is used for for the head up display 30 on instrument desk 20
Internal image projected and formed main picture and pair as A, by between the inner layer glass 12 and the glass outer 14
Middle film layer 16 is set, and the middle film layer 16 has the angle of wedge for eliminating the main picture and the secondary ghost image as between, drives
In the image information for seeing the internal image, the main picture and the secondary picture overlap member, avoid the generation of ghost image；And by
It is more than 8000 in the bending curvature radius vertically of the automobile windscreen 10, bending in the horizontal direction is bent
Rate can be ignored, then so that the imaging region A of the imaging region of the main picture and the secondary picture is equivalent to plane, simplify described
The calculating of the angle of wedge, computational methods are simple.
In this embodiment, the middle film layer 16 is that (full name is PVB：Polyvinyl Butyral, Chinese name：Poly- second
Enol butyral) film layer.The middle film layer 16 is transparence.
Fig. 1 and Fig. 3 are please referred to, automobile windscreen 10 provided in an embodiment of the present invention can be by the head up display
30 image information, in some position of the outside of the windshield 10, is formed by main picture by the refraction and catoptric imaging of light
With pair as A is overlapped.
Referring to Fig.1 and 2, further, the angle of wedge size is calculated using the reflection and the law of refraction of light.
It, can be by human eye, the image of the head up display 30 and main picture and the secondary overlapping region as A, due to gear in calculating process
The bending curvature radius vertically of wind glass 10 is more than 8000, which can be equivalent to plane, and utilize institute
The refractive index and angle of reflection for stating windshield 10 are calculated, and the angle of wedge of the middle film layer 16 is calculated, calculating process letter
It is single.
Fig. 2 is please referred to, further, angle of wedge δ is calculated using following formula：
Nsin γ '=sin γ (1)
Wherein, n is the refractive index of the inner layer glass 12 and the glass outer 14；
γ is the incidence angle that the light 1 that image source is sent out is incident on 12 inner surface of the inner layer glass, unit rad；γ′
It is the angle of emergence for being incident to 12 glazed thread of the inner layer glass, unit is rad, and the light 1 is anti-by the inner layer glass 12
Input human eye is penetrated, the virtual image is formed in the main picture；
β is the incidence angle that the light 2 that image source is sent out is incident on 12 inner surface of the inner layer glass, and unit is rad, described
Light 2 reflects input human eye by the glass outer 14, and the virtual image is formed as in secondary；
T is the thickness of the windshield 10, unit mm；
S is distance of the image source to 12 pip of the inner layer glass, unit mm；
L is distance of 12 pip of the inner layer glass to human eye, unit mm；
δ is the angle of wedge, unit mrad.
The embodiment is by calculating human eye, image source (image information i.e. shown by head up display 30) and main picture and pair
As the position of A, and main picture and pair calculate the angle of wedge, to accurately determine an angle of wedge of the windshield 10 as A coincidences
Size, calculating process is simply and conveniently.
Fig. 2 is please referred to, further, an angle of wedge size is determined according to the average value of β, S and L so that the master
The virtual image as in is overlapped with the secondary virtual image as in.Since image source contains also there are multiple points at multiple points and human eye, it is right
The light of different items is corresponded in difference, and every light is corresponded to there are one β, S and L value, is calculated according to numerous β, S and L values
Go out their average value, and an angle of wedge size is determined by average value.The process for seeking β, S and L average value, relative to picture
The location point of source and human eye has carried out the processing of average value single-pointization, i.e., image source is regarded as one after multi-point average value
Point, similarly, the location point of human eye are also to regard a point after multi-point average value as, simplify calculating process.
Fig. 2 is please referred to, it is further, incident different to the different location of the inner layer glass 12 around the image source
Light tracks light described in each, calculates its corresponding β, S and L value.The calculating of corresponding β, S and L value is as follows：It is practical
On, the view field of image source to front windshield can exist without several light, and the average value of these light is S, similarly, in the past
It is L that windshield, which is reflected into the light of human eye there is also the average value without several light, these light, it should be noted that, image source
It refer to liquid crystal display imaging on last block eyeglass in head up display.It can be according to general rule in calculating process
It chooses some of light to be calculated, specifically, from the center of picture to edge direction, divides an image into several annuluses
Domain is equably chosen light in each region and is calculated, these light can take into account all different zones, it is possible to representative image
Real standard.
Fig. 3 is please referred to, further, the middle film layer 16 gradually becomes from the lower edge to the direction of the top edge
It is thick.Thickness of the middle film layer 16 close to 20 side of the instrument desk is minimum, and the thickness close to top is maximum, i.e., from the gear
The thickness of the lower edge of wind glass 10 to top edge gradually thickens.The inner layer glass 12 and the glass outer 14 are from lower edge
Thickness to the top edge is respectively uniform thickness.It is thickend by the thickness of the middle film layer 16 to ensure the main picture and pair
As the coincidence of A, the generation of ghost image is avoided.
Please refer to Fig. 3, it is preferable that the thickness at the thickness minimum of the middle film layer 16 is 0.76mm.
Referring to Fig.1 and 2, motor vehicle provided in an embodiment of the present invention includes instrument desk 20, is set to the instrument desk
The windshield 10 in 20 fronts is installed on head up display 30 and above-mentioned windshield 10 on the instrument desk 20.The embodiment
In windshield 10 and the various embodiments described above in 10 structure having the same of windshield, and role is identical, herein
It does not repeat.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (8)
1. a kind of automobile windscreen, including the inner layer glass of facing setting and glass outer and it is located in the internal layer
Middle film layer between glass and the glass outer, and with the top edge and lower edge being oppositely arranged, the motor-driven car bumper
Wind glass is arranged along the top edge to the lower edge in bending；It is characterized in that, the new line being installed below instrument desk is aobvious
Show that device projects its internal image to being respectively formed main picture and secondary picture, the centre on the inner layer glass and the glass outer
Film layer has an angle of wedge for eliminating the main picture and the secondary ghost image as between, the automobile windscreen along vertical side
To bending curvature radius be more than 8000 so that described main as imaging region and secondary as imaging region is equivalent to plane.
2. automobile windscreen as described in claim 1, which is characterized in that calculated using the reflection of light and the law of refraction
Go out the angle of wedge size.
3. automobile windscreen as claimed in claim 2, which is characterized in that calculate angle of wedge δ using following formula：
N sin γ '=sin γ (1)
Wherein, n is the refractive index of the inner layer glass and the glass outer；
γ is the incidence angle that the light 1 that image source is sent out is incident on the inner layer glass inner surface, unit rad；γ ' is incident
To the angle of emergence of the inner layer glass glazed thread, unit is rad, and the light 1 reflects input human eye by the inner layer glass,
The virtual image is formed in the main picture；
β is the incidence angle that the light 2 that image source is sent out is incident on the inner layer glass inner surface, and unit is rad, the light 2
Input human eye is reflected by the glass outer, the virtual image is formed as in secondary；
T is the thickness of the windshield, unit mm；
S is distance of the image source to the inner layer glass pip, unit mm；
L is distance of the inner layer glass pip to human eye, unit mm；
δ is the angle of wedge, unit mrad.
4. automobile windscreen as claimed in claim 3, which is characterized in that determine an institute according to the average value of β, S and L
State angle of wedge size so that the virtual image in the main picture is overlapped with the secondary virtual image as in.
5. automobile windscreen as claimed in claim 4, which is characterized in that the inner layer glass around the case source
The incident different light of different location, track light described in each, calculate its corresponding β, S and L value.
6. automobile windscreen as described in claim 1, which is characterized in that the middle film layer is from the lower edge to institute
The direction for stating top edge gradually thickens.
7. automobile windscreen as claimed in claim 6, which is characterized in that the thickness at the thickness minimum of the middle film layer
Degree is 0.76mm.
8. a kind of motor vehicle, including instrument desk, the windshield that is set in front of the instrument desk and it is installed on the instrument
Head up display on platform, which is characterized in that include the windshield as described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072677.XA CN108407580A (en) | 2017-02-10 | 2017-02-10 | Motor vehicle and its windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072677.XA CN108407580A (en) | 2017-02-10 | 2017-02-10 | Motor vehicle and its windshield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108407580A true CN108407580A (en) | 2018-08-17 |
Family
ID=63124912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710072677.XA Pending CN108407580A (en) | 2017-02-10 | 2017-02-10 | Motor vehicle and its windshield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108407580A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323678A (en) * | 2018-09-28 | 2019-02-12 | 上汽大众汽车有限公司 | A kind of capacity checking device and check method |
| CN112558301A (en) * | 2019-09-26 | 2021-03-26 | 矽创电子股份有限公司 | Imaging optical system |
| CN114839780A (en) * | 2022-05-25 | 2022-08-02 | 福耀玻璃工业集团股份有限公司 | Head-up display system and design method thereof |
| WO2022207004A1 (en) * | 2021-04-16 | 2022-10-06 | 福耀玻璃工业集团股份有限公司 | Head-up display glass and head-up display system |
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| CN101038349A (en) * | 2005-12-26 | 2007-09-19 | 旭硝子株式会社 | Laminated glass for vehicle |
| CN201209132Y (en) * | 2008-03-28 | 2009-03-18 | 福耀玻璃工业集团股份有限公司 | Interlayer front windscreen glass for vehicle with display function |
| CN101888927B (en) * | 2007-12-07 | 2013-05-29 | 法国圣戈班玻璃厂 | Curved vehicle windshield made from laminated glass |
| CN105842850A (en) * | 2016-03-22 | 2016-08-10 | 福耀集团（上海）汽车玻璃有限公司 | HUD glass product with reflecting film layer |
| WO2016135288A1 (en) * | 2015-02-27 | 2016-09-01 | Jaguar Land Rover Limited | Head up display apparatus and display surface therefor |
| CN106489095A (en) * | 2015-06-11 | 2017-03-08 | 法国圣戈班玻璃厂 | For contacting the projection arrangement of simulation head-up display (HUD) |
| CN106489096A (en) * | 2015-06-11 | 2017-03-08 | 法国圣戈班玻璃厂 | Projection arrangement for head-up display (hud) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013134A (en) * | 1989-09-28 | 1991-05-07 | Hughes Aircraft Company | Ghost-free automotive head-up display employing a wedged windshield |
| CN101038349A (en) * | 2005-12-26 | 2007-09-19 | 旭硝子株式会社 | Laminated glass for vehicle |
| CN101888927B (en) * | 2007-12-07 | 2013-05-29 | 法国圣戈班玻璃厂 | Curved vehicle windshield made from laminated glass |
| CN201209132Y (en) * | 2008-03-28 | 2009-03-18 | 福耀玻璃工业集团股份有限公司 | Interlayer front windscreen glass for vehicle with display function |
| WO2016135288A1 (en) * | 2015-02-27 | 2016-09-01 | Jaguar Land Rover Limited | Head up display apparatus and display surface therefor |
| CN106489095A (en) * | 2015-06-11 | 2017-03-08 | 法国圣戈班玻璃厂 | For contacting the projection arrangement of simulation head-up display (HUD) |
| CN106489096A (en) * | 2015-06-11 | 2017-03-08 | 法国圣戈班玻璃厂 | Projection arrangement for head-up display (hud) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323678A (en) * | 2018-09-28 | 2019-02-12 | 上汽大众汽车有限公司 | A kind of capacity checking device and check method |
| CN112558301A (en) * | 2019-09-26 | 2021-03-26 | 矽创电子股份有限公司 | Imaging optical system |
| WO2022207004A1 (en) * | 2021-04-16 | 2022-10-06 | 福耀玻璃工业集团股份有限公司 | Head-up display glass and head-up display system |
| CN114839780A (en) * | 2022-05-25 | 2022-08-02 | 福耀玻璃工业集团股份有限公司 | Head-up display system and design method thereof |
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Application publication date: 20180817 |
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