CN207752232U - Windscreen formula head-up display device - Google Patents
Windscreen formula head-up display device Download PDFInfo
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- CN207752232U CN207752232U CN201721413605.9U CN201721413605U CN207752232U CN 207752232 U CN207752232 U CN 207752232U CN 201721413605 U CN201721413605 U CN 201721413605U CN 207752232 U CN207752232 U CN 207752232U
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Abstract
The utility model discloses windscreen formula head-up display devices, including：Image source and projection group, the projection group, being projected in described image source to windshield by the projection group, and form first virtual image and second virtual image in the same side of the windshield, relative to second virtual image close to eye box region, the distance in first virtual image to eye box region is for first virtual image：Image-forming range；When the image-forming range increases, being projected to the ghost value of first virtual image of described windshield the same side and second virtual image by the projection group reduces.The utility model is more than sagittal surface image with respect to human eye diopter, further weakens ghost image by rationally adjusting optical system astigmatism, meridian plane image.Increase image-forming range, rationally adjust astigmatism, two methods are using one of which or use simultaneously, are conducive to weaken ghost image.
Description
Technical field
The utility model is related to automobile new line display fields, more particularly to windscreen formula head-up display device.
Background technology
Information of vehicles, navigation information etc. are watched for convenience of driver, utilizes head-up display device (HUD, Head Up
Display), image information is optically projected near pilot's line of vision.
Pleasing to the eye box region is reflected into through windshield when HUD projects image, is watched for driver.Meanwhile driver can
Through windshield, it is seen that pavement behavior.Therefore, because windshield has reflective and light transmission features concurrently, two surfaces can be right
HUD projection images are reflected, and then form two nonoverlapping images, are unfavorable for driver's viewing, are common as shown in Figure 1
Windshield ghost image schematic diagram.Usually we wherein will be known as master image (virtual image 1) by piece image, and another piece image is known as ghost image
Image (virtual image 2) is the ghost image schematic diagram that driver watches as shown in Fig. 2.
Currently, the scheme for solving ghost image is mainly the following mode：Accurately control two reflecting surfaces of windshield
The depth of parallelism, makes between two surfaces that there are one small wedge angles, upper thick and lower thin.After reflection, two images are overlapped HUD images.Tool
For example, there is PVB interlayers inside control windshield in body realization method, or one layer of pad pasting etc. with the angle of wedge of patch, it is as shown in Figure 3
Band angle of wedge windshield is without ghost image schematic diagram.For another example, pass through plated film mode so that there are larger differences for two surface reflectivities
It is different, so that main image brightness is far above ghost image, and then ignore dark image.
It is above to solve ghost image scheme, it is required to change the structure or plated film of external windshield, the cost is relatively high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of in the case of not changing former vehicle windshield, realizes
Weaken the windscreen formula head-up display device of ghost image.
Above-mentioned technical problem is solved, the utility model provides a kind of windscreen formula head-up display device, for passing through projection
Show image information, described image information comes back for projecting to windshield, and by the windshield into pleasing to the eye box region
Display device includes：Image source and projection group,
Described image source is projected by the projection group to windshield, and is formed in the same side of the windshield
First virtual image and second virtual image, first virtual image are empty close to eye box region, described first relative to second virtual image
As the distance to eye box region is：Image-forming range；
When the image-forming range changes, the ghost value of first virtual image and second virtual image is detected,
If the image-forming range increases, projected to described the of described windshield the same side by the projection group
The ghost value of one virtual image and second virtual image reduces.
By being projected in described image source to windshield by the projection group：The shape after the reflection of windshield inner surface
At first virtual image；Successively through the refraction of windshield inner surface, outer surface reflection, inner surface refraction and second virtual image.As knowing altogether,
First virtual image is located in front of human eye, and opposite second virtual image is close to human eye.First virtual image is less than the second virtual image phase with respect to human eye diopter
To human eye diopter.
Further, astigmatism is rationally adjusted, first virtual image is imaged opposite sagittal surface in meridian plane and is imaged as far from eye
The side in box region, the meridian plane imaging human eye diopter relatively are more than the sagittal surface diopter, and there are diopter differences for the two.
Further, above-mentioned diopter difference absolute value≤1D.
Preferably, above-mentioned diopter difference absolute value≤0.5D.
Further, when the image-forming range is 30m, diopter difference absolute value 0.23D, ghost value is 1 '.
Further, the image-forming range >=2m.
Further, the light that described image source generates is the small figure of any module displays of LCD, OLED, DLP
Picture.
Preferably, the projection group includes：First speculum, the second speculum,
The light inner surface reflection through first speculum, second speculum, the windshield successively, enters
Eye box region forms first virtual image.Light is successively through in first speculum, second speculum, the windshield
Surface transmission, the outer surface reflection of the windshield, the inner surface refraction of the windshield, the is formed into pleasing to the eye box region
Two virtual images.
Further, first speculum is curved mirror, and second speculum is：Plane mirror or curved mirror.
Preferably, the projection group includes the first speculum, the second speculum, third speculum.
Further, first speculum, the second speculum, third mirror surface type are curved surface or plane.Three anti-
Penetrate at least one curved mirror in mirror.
Preferably, the projection group includes the first speculum.
Further, first speculum is curved mirror.
The beneficial effects of the utility model：
Windscreen formula head-up display device provided by the utility model, has an image-forming range farther out, image-forming range >=4m,
So as to weaken ghost image.Since head-up display device has big image-forming range, therefore ghost image is relatively small.Simultaneously in the present invention
By rationally controlling head-up display device astigmatism, further weaken ghost image.The virtual image is imaged opposite sagittal surface in meridian plane and is imaged, position
In the eye box region far from driver side.Preferably, the opposite human eye diopter of meridian plane imaging is more than sagittal surface diopter, diopter difference
Absolute value≤1D, smaller diopter difference human eye can receive.
Description of the drawings
Fig. 1 is ordinary windscreen ghost image schematic diagram；
Fig. 2 is the ghost image schematic diagram that driver watches；
Fig. 3 is band angle of wedge windshield without ghost image schematic diagram；
Fig. 4 is the windscreen formula head-up display device structural schematic diagram in one embodiment of the utility model；
Fig. 5 is the light schematic diagram in Fig. 4；
Fig. 6 is the schematic diagram of conventional control astigmatism；
Fig. 7 is the schematic diagram of the control astigmatism in one embodiment of the utility model；
Fig. 8 is one embodiment schematic layout pattern of the utility model.
Specific implementation mode
The principle of the disclosure is described referring now to some example embodiments.It is appreciated that these embodiments are merely for saying
It is bright and help it will be understood by those skilled in the art that with the purpose of the embodiment disclosure and describe, rather than suggest the model to the disclosure
Any restrictions enclosed.Content of this disclosure described here can in a manner of described below except various modes implement.
As described herein, term " comprising " and its various variants are construed as open-ended term, it means that " packet
It includes but is not limited to ".Term "based" is construed as " being based at least partially on ".Term " one embodiment " it is understood that
For " at least one embodiment ".Term " another embodiment " is construed as " at least one other embodiment ".
Ghost image in this application refers to：Two surfaces can project image to HUD and reflect inside and outside windshield, into
And form two nonoverlapping images.Two images are ghost image distance in the offset of vertical direction, and unit is distance value, such as
mm.The ghost image is defined as ghost value with respect to the subtended angle of human eye, and subtended angle is bigger, and human eye is easier to be discovered.
Diopter in this application refers to：The people that visual optical instrument adapts to various different eyesights uses so that institute at
Picture be no longer at infinity, but on the certain distance of human eye front or behind, to adapt to the need of myopia or farsightedness
It wants, unit is diopter, and symbol D is indicated.It is indicated with the inverse of distance, e.g., imaging is located at infinity, diopter 0D, and imaging is located at
1m, diopter -1D in front of human eye, are located at 4m, diopter -0.25D in front of human eye, and imaging is located at human eye rear 4m, diopter 0.25D.
It is windscreen formula head-up display device structural schematic diagram in one embodiment of the utility model to please refer to Fig.4, this implementation
Windscreen formula head-up display device in example, for by projection-display image information, described image information to be for projecting to described
Windshield, and by the windshield into pleasing to the eye box region, head-up display device includes：Image source 1 and projection group (2,3,
5), described image source is projected by the projection group to windshield 5, and first is formed in the same side of the windshield
The virtual image 6 and second virtual image 7, first virtual image 6 are empty close to eye box region, described first relative to second virtual image 7
As 6 distance to eye box region is：Image-forming range；When the image-forming range changes, first virtual image is detected
It is projected to the glass that keeps out the wind by the projection group with the ghost value of second virtual image if the image-forming range increases
First virtual image of glass the same side and the ghost value of second virtual image reduce.Windscreen formula in the present embodiment, which comes back, shows dress
It sets, has image-forming range farther out, image-forming range >=4m, so as to weaken ghost image.Due to head-up display device have it is big at
Image distance is from therefore ghost image is relatively small.Specifically, in the present embodiment, the center in the center of first virtual image 6 to eye box region 4 away from
From being defined as image-forming range.In addition, the windscreen formula head-up display device of the present embodiment reduces product use cost.Without spy
Different customization windshield, windshield surfaces externally and internally is parallel, no angle of wedge.Special plated film is not needed.
In some embodiments, it is projected to first virtual image packet of the windshield side by the projection group
It includes:Meridian plane is imaged and sagittal surface imaging, and the meridian plane imaging is imaged as relative to the sagittal surface far from the areas Yan He
The diopter of the side in domain, the meridian plane imaging is more than the diopter of sagittal surface imaging with respect to human eye diopter.By rationally controlling
Head-up display device astigmatism processed, further weakens ghost image.The virtual image is imaged opposite sagittal surface in meridian plane and is imaged, and is located remotely from driving
The eye box region of member side.
In some embodiments, the projection group further includes：First speculum and the second speculum,
Described image source is projected by the projection group to windshield, and is formed in the same side of the windshield
First virtual image and second virtual image include：
The light that described image source generates is successively through first speculum, second speculum, the windshield
Inner surface reflection, enter eye box region and form first virtual image,
The light that described image source generates is successively through first speculum, second speculum, the windshield
Inner surface projection, the windshield outer surface reflection, the windshield inner surface refraction, enter the eye box
Region forms second virtual image.
In some embodiments, the projection group includes：First speculum, the second speculum and third speculum,
At least there are one curved mirrors for tool in first speculum, the second speculum and third speculum.
Since windshield radius of curvature is larger, front and rear surfaces are parallel.Therefore first virtual image 6 and second that projection is formed
Along pilot's line of vision direction there are certain distance, second virtual image 7, which is located at, is relatively distant from driver side, first virtual image 6 for the virtual image 7
In relatively close driver side, and apart from generally being determined by windshield parameter etc., usually 15mm or so.
As preferred in the present embodiment, the projection group (2,3,5) includes：First speculum 2, the second speculum 3 with
And windshield 5, the light inner surface through first speculum 2, second speculum 3, the windshield 5 successively
Reflection forms first virtual image 6 into pleasing to the eye box region 4.
As preferred in the present embodiment, light is successively through first speculum 2, second speculum 3, described
The inner surface transmission of windshield 5, the outer surface reflection of the windshield 5, the inner surface refraction of the windshield 5, into
Pleasing to the eye box region 4 forms second virtual image 7.
Above-mentioned windscreen formula head-up display device is used for Projection Display, and void is formed about in vehicle front, pilot's line of vision
Picture.
As shown in fig. 7, as preferred in the present embodiment, first virtual image 6 is in 61 opposite sagittal surface of meridian plane imaging
Imaging 62 is the side far from eye box region 4, and the meridian plane imaging human eye diopter relatively is more than the sagittal surface diopter.It is preferred that
Ground, above-mentioned diopter difference absolute value≤0.5D.Head-up display device image-forming range in the present embodiment is more than 4m, and meridian plane is (perpendicular
Histogram is upward) opposite sagittal surface (on horizontal plane) imaging of imaging, it is located remotely from driver side, meets requirement.Without spy
Different customization windshield, windshield surfaces externally and internally is parallel, no angle of wedge.Special plated film is not needed.
As preferred in the present embodiment, when the image-forming range is 30m, diopter difference absolute value 0.23D, ghost value is
1 ', it is horizontal close to human eye limiting resolution.
Tiny image source in the present embodiment is not specifically limited, and including but not limited to, LCD, OLED, the modules such as DLP are shown
The tiny image shown.Speculum one is curved mirror, speculum two is plane mirror or curved mirror.
The projection group structure type of the present embodiment can have different layout type, can be with above-described embodiment two panels speculum
Except other forms.Such as by three speculum groups at projection group, and by a speculum group at projection group.Such as Fig. 8
It is shown, it is a mirror structure schematic diagram, image source 1 is located above windshield, speculum 3.
A kind of method weakening ghost image is provided in another embodiment of the application, is included the following steps：
Step S100 configures image source and projection group in the car, and described image source is used for generating image, the projection group
It is projected to windshield in by described image, and first virtual image and second virtual image, institute is formed in the same side of the windshield
First virtual image is stated relative to second virtual image close to eye box region, the distance of first virtual image to eye box region
For：Image-forming range, method include：
Step S101 detects the ghost image of first virtual image and second virtual image when the image-forming range changes
Value,
Step S101 adjusts the image-forming range, and when the image-forming range increases, and will pass through the projection group and project
The ghost value of first virtual image and second virtual image to described windshield the same side reduces.
In the step S101, specifically, the projection group further includes：First speculum and the second speculum,
Described image source is projected by the projection group to windshield, and is formed in the same side of the windshield
First virtual image and second virtual image include：
The light that described image source generates is successively through first speculum, second speculum, the windshield
Inner surface reflection, enter eye box region and form first virtual image,
The light that described image source generates is successively through first speculum, second speculum, the windshield
Inner surface projection, the windshield outer surface reflection, the windshield inner surface refraction, enter the eye box
Region forms second virtual image.
In the step S101, specifically, the projection group includes：First speculum, the second speculum and third
Speculum,
At least there are one curved mirrors for tool in first speculum, the second speculum and third speculum.
In the step S101, specifically, the projection group includes：First speculum
First speculum is curved mirror.
Those skilled in the art know altogether, and on the basis of meeting image-forming range, astigmatism, mirror count, distribution form can be adjusted suitably
It is whole, it is not listed one by one.
In the step S102, it is preferable that first virtual image is imaged as separate in the opposite sagittal surface of meridian plane imaging
The side in eye box region, the meridian plane imaging human eye diopter relatively are more than the sagittal surface diopter.
Preferably, above-mentioned diopter difference absolute value≤0.5D.
In the step S102, it is preferable that when the image-forming range is 30m, diopter difference absolute value 0.23D, ghost value
It is 1 '.
In the step S102, it is preferable that the image-forming range >=2m.
In above-mentioned steps, the light that described image generation unit generates is any module displays of LCD, OLED, DLP
Tiny image.
In above-mentioned steps, first speculum is curved mirror, and second speculum is：Plane mirror or curved mirror.
As a kind of preferred in the present embodiment, the method for weakening ghost image in the present embodiment,
Step S200 configures image source and projection group in the car, and described image source is used for generating image, the projection group
It is projected to windshield in by described image, and first virtual image and second virtual image, institute is formed in the same side of the windshield
First virtual image is stated relative to second virtual image close to eye box region, the distance of first virtual image to eye box region
For：Image-forming range, method include：
Step S201 detects the ghost image of first virtual image and second virtual image when the image-forming range changes
Value,
If the step S202 image-forming ranges increase, projected to described windshield the same side by the projection group
First virtual image and second virtual image ghost value reduce,
If the step S203 image-forming ranges are in the identifiable imaging indication range of human eye, by adjusting astigmatism by institute
First virtual image is stated to be decomposed into：Meridian plane is imaged and sagittal surface imaging,
Step S204 is imaged by the meridian plane that the projection group is projected to the windshield side relative to warp
It crosses the sagittal surface that the projection group is projected to described windshield the same side and is imaged as the side far from eye box region,
And the diopter of the meridian plane imaging is more than the diopter of sagittal surface imaging with respect to human eye diopter,
Step S205 adjusts first virtual image and is imaged to the image-forming range in eye box region in the sagittal surface,
And when the image-forming range increases, it will be projected to first virtual image of described windshield the same side by the projection group
It is reduced with the ghost value of second virtual image.
The method of above-mentioned weakening ghost image, by rationally adjusting image-forming range, first virtual image sagittal surface be imaged to
The distance in eye box region is image-forming range, when image-forming range increases, the ghost value of first virtual image and second virtual image is made to drop
It is low.Rationally adjustment astigmatism, first virtual image are imaged opposite human eye diopter in meridian plane and are imaged diopter more than the sagittal surface, cut
Weaker ghost.
Design parameter in following examples, to explain the realization principle of the application.
Example 1：
As shown in figure 5, the windscreen formula head-up display device in the present embodiment in the present embodiment, is used for projection-display image
Information, including：Described image source 1 is projected to form first virtual image 6 by image source 1 and projection group (2,3,5) by the projection group
With second virtual image 7, when image-forming range increases, the ghost value of first virtual image 6 and second virtual image 7 reduces, and described the
The distance in one virtual image 5 to eye box region 4 is：Image-forming range.General head-up display device image-forming range is 2m left in the prior art
The right side, ghost image are big.Windscreen formula head-up display device in the present embodiment has larger image-forming range, image-forming range >=4m.Imaging away from
From bigger, ghost value is smaller.As preferred in the present embodiment, the projection group (2,3,5) includes：First speculum 2, second
Speculum 3 and windshield 5, light is successively through first speculum 2, second speculum 3, the windshield 5
Inner surface reflection, into pleasing to the eye box region 4 formed first virtual image 6.
As preferred in the present embodiment, light is successively through first speculum 2, second speculum 3, described
The inner surface transmission of windshield 5, the outer surface reflection of the windshield 5, the inner surface refraction of the windshield 5, into
Pleasing to the eye box region 4 forms second virtual image 7.
Ghost image distance consists of two parts, a part be thickness of glass factor cause, principle be those skilled in the art known in, when
Light can caused image shift through tablet.A part is that windshield bending causes, and windshield has one in vertical direction
Fixed radius of curvature, the light of head-up display device incidence, there are a small angle, the angles for front and rear surfaces reflection light
For the second part of ghost value.Ghost value size is related with windshield thickness, refractive index, radius of curvature.Two parts ghost value
Superposition, final to weaken first part's ghost image as image-forming range increases, total ghost value is weakened.
Head-up display device image-forming range is 5.5m in this example, and relevant parameter is as shown in table 1, is computed ghost value≤5 '.
Image-forming range increases, and ghost value reduces.
Table 1
| Image-forming range | 5.5m |
| Vertical direction radius of curvature | 7000mm |
| Human eye and glass distance | 750mm |
| Refractive index | 1.519 |
| Thickness | 4.76mm |
| Incidence angle | 55° |
| Ghost value | 3.9′ |
Speculum one is plane mirror in this example, serves and folds light path, is not shown in design document.When image-forming range 5.5m
Relevant parameter such as the following table 2：
Table 2
Two face type formula of speculum：
Table 3
| Cx | Cy | Kx | Ky |
| 1.94E-03 | 1.58E-03 | 20.779 | -148.095 |
Example 2：
As shown in fig. 7, the windscreen formula head-up display device in the present embodiment in the present embodiment in the present embodiment, is used for
Projection-display image information, including：Image source 1 and projection group (2,3,5) project in described image source 1 by the projection group
First virtual image 6 and second virtual image 7 are formed, when image-forming range increases, the ghost image of first virtual image 6 and second virtual image 7
Value reduces, and the distance in first virtual image 5 to eye box region 4 is：Image-forming range.As preferred in the present embodiment, described
One virtual image 6 is the side far from eye box region 4 in 61 opposite sagittal surface imaging 62 of meridian plane imaging, and the meridian plane is imaged 6 phases
The sagittal surface is more than to human eye diopter and is imaged 62 diopters.Image-forming range >=the 4m.It is described as preferred in the present embodiment
Projection group (2,3,5) includes：First speculum 2, the second speculum 3 and windshield 5, light are reflected through described first successively
The inner surface reflection of mirror 2, second speculum 3, the windshield 5, first virtual image 6 is formed into pleasing to the eye box region 4.
As preferred in the present embodiment, light is successively through first speculum 2, second speculum 3, described
The inner surface transmission of windshield 5, the outer surface reflection of the windshield 5, the inner surface refraction of the windshield 5, into
Pleasing to the eye box region 4 forms second virtual image 7.
The method that windscreen formula head-up display device astigmatism weakens ghost image is controlled in the embodiment, first virtual image 6 is in meridian plane
61 opposite sagittal surface (horizontal plane) of (vertical direction) imaging is imaged 62, is located remotely from driver side.Meridian plane imaging 61 is opposite
Human eye diopter is more than the diopter of sagittal surface imaging 62, diopter difference absolute value≤0.5D.
As preferred in the present embodiment, above-mentioned diopter difference absolute value≤0.5D.
As preferred in the present embodiment, when the image-forming range is 30m, diopter difference absolute value 0.23D, ghost value is
1′。
In the prior art, in order to rationally control astigmatism, conventional head-up display device virtual image meridian image and sagittal image are such as
Shown in Fig. 6, meridian image and sagittal image image-forming range are equal.
The virtual image in the present embodiment is imaged opposite sagittal surface (horizontal plane) in meridian plane (vertical direction) and is imaged, and is located remotely from
Driver side.At this point, the opposite human eye diopter of meridian plane imaging is more than sagittal surface diopter, diopter difference absolute value≤0.5D, such as Fig. 7
It is shown.
Head-up display device image-forming range is 4m, the opposite sagittal surface (water of meridian plane (vertical direction) imaging in the present embodiment
Plane) imaging, it is located remotely from driver side.Diopter difference absolute value 0.25D, ghost value 2.4 ' meet requirement.Such as table 4
It is described.
Table 4
| Sagittal image image-forming range | 4m |
| Meridian sagittal image diopter difference | 0.25D |
| Vertical direction radius of curvature | 7000mm |
| Human eye and glass distance | 750mm |
| Refractive index | 1.519 |
| Thickness | 4.76mm |
| Incidence angle | 55° |
| Ghost value | 2.4′ |
Speculum one is plane mirror in this example, serves and folds light path.Relevant parameter such as the following table 6：
Table 5
Two face type formula of speculum：
Table 6
| Cx | Cy | Kx | Ky |
| 1.727E-03 | 1.578E-03 | 20.779 | -148.095 |
Embodiment 3
Windscreen formula head-up display device in the present embodiment in the present embodiment in the present embodiment is used for Projection Display figure
As information, including：Described image source 1 is projected to form the first void by image source 1 and projection group (2,3,5) by the projection group
Picture 6 and second virtual image 7, when image-forming range increases, the ghost value of first virtual image 6 and second virtual image 7 reduces, institute
The distance for stating first virtual image 5 to eye box region 4 is：Image-forming range.As preferred in the present embodiment, the projection group (2,3,
5) include：First speculum 2, the second speculum 3 and windshield 5, light is successively through first speculum 2, described
The inner surface reflection of two-mirror 3, the windshield 5, first virtual image 6 is formed into pleasing to the eye box region 4.
As preferred in the present embodiment, light is successively through first speculum 2, second speculum 3, described
The inner surface transmission of windshield 5, the outer surface reflection of the windshield 5, the inner surface refraction of the windshield 5, into
Pleasing to the eye box region 4 forms second virtual image 7.
Further reasonable selection image-forming range and diopter difference absolute value, image-forming range 30m, meridian plane (vertical direction) imaging
Opposite sagittal surface (horizontal plane) is imaged, and is located remotely from driver side.Diopter difference absolute value 0.23D, ghost value are contracted to 1 ',
It is horizontal close to human eye limiting resolution.
Table 7
| Sagittal image image-forming range | 30m |
| Meridian sagittal image diopter difference | 0.23D |
| Vertical direction radius of curvature | 7000mm |
| Human eye and glass distance | 750mm |
| Refractive index | 1.519 |
| Thickness | 4.76mm |
| Incidence angle | 55° |
| Ghost value | 1′ |
Speculum one is plane mirror in this example, serves and folds light path.Relevant parameter such as the following table 8：
Table 8
Two face type formula of speculum：
Table 9
| Cx | Cy | Kx | Ky |
| 1.672E-03 | 1.456E-03 | -12.47 | -183.08 |
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiments or example.
In general, the various embodiments of the disclosure can be with hardware or special circuit, software, logic or its arbitrary combination
Implement.Some aspects can be implemented with hardware, and some other aspect can be implemented with firmware or software, which can
With by controller, microprocessor or the execution of other computing devices.Although the various aspects of the disclosure be shown and described as block diagram,
Flow chart is indicated using some other drawing, but it is understood that frame described herein, equipment, system, techniques or methods can
With in a non limiting manner with hardware, software, firmware, special circuit or logic, common hardware or controller or other calculating
Equipment or some combinations are implemented.
In addition, although operation is described with particular order, this is understood not to require this generic operation suitable shown in
Sequence is executed or is executed with generic sequence, or require it is all shown in operate and be performed to realize expected result.In some feelings
Under shape, multitask or parallel processing can be advantageous.Similarly, although the details of several specific implementations is begged in above
By comprising but these are not necessarily to be construed as any restrictions to the scope of the present disclosure, but the description of feature is only needle in
To specific embodiment.Certain features described in some embodiments of separation can also in combination be held in single embodiment
Row.Mutually oppose, various features described in single embodiment can also be implemented separately or in various embodiments to appoint
The mode of what suitable sub-portfolio is implemented.
Claims (10)
1. a kind of windscreen formula head-up display device, which is characterized in that for passing through projection-display image information, described image information
For projecting to windshield, and by the windshield into pleasing to the eye box region, head-up display device includes：Image source and projection
Group,
The projection group, being projected in described image source to windshield by the projection group, and in the windshield
The same side form first virtual image and second virtual image, first virtual image is relative to second virtual image close to the areas Yan He
Domain, the distance in first virtual image to eye box region are：Image-forming range；
When the image-forming range increases, projected to first virtual image of described windshield the same side by the projection group
It is reduced with the ghost value of second virtual image.
2. windscreen formula head-up display device according to claim 1, which is characterized in that projected to institute by the projection group
First virtual image for stating windshield side includes:Meridian plane is imaged and sagittal surface imaging,
The meridian plane imaging is imaged as the side far from eye box region relative to the sagittal surface,
The diopter of the meridian plane imaging is more than the diopter of sagittal surface imaging with respect to human eye diopter.
3. windscreen formula head-up display device according to claim 1, which is characterized in that the projection group further includes：First
Speculum and the second speculum,
Described image source is projected by the projection group to windshield, and first is formed in the same side of the windshield
The virtual image and second virtual image include：
The light that described image source generates is successively through in first speculum, second speculum, the windshield
Surface reflection enters eye box region and forms first virtual image,
The light that described image source generates is successively through in first speculum, second speculum, the windshield
Surface projection, the outer surface reflection of the windshield, the inner surface refraction of the windshield, enter eye box region
Form second virtual image.
4. windscreen formula head-up display device according to claim 1, which is characterized in that the projection group includes：First is anti-
Mirror, the second speculum and third speculum are penetrated, is at least had in first speculum, the second speculum and third speculum
There are one curved mirrors.
5. windscreen formula head-up display device according to claim 1, which is characterized in that the projection group includes：One reflection
Mirror, the speculum are curved mirror.
6. windscreen formula head-up display device according to claim 1, which is characterized in that when the image-forming range changes
When, detect the ghost value of first virtual image and second virtual image, the image-forming range >=2m.
7. windscreen formula head-up display device according to claim 1, which is characterized in that described image source generate light be
The tiny image of any module displays of LCD, OLED, DLP.
8. windscreen formula head-up display device according to claim 1, which is characterized in that described image source and the projection group
It is installed in a shell, the shell is placed in interior dashboard.
9. windscreen formula head-up display device according to claim 1, which is characterized in that image source is set to room mirror
On, the projection group is installed in a shell.
10. windscreen formula head-up display device according to claim 1, which is characterized in that when the image-forming range is 30m,
Diopter difference absolute value is 0.23D, and ghost value is 1 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413605.9U CN207752232U (en) | 2017-10-30 | 2017-10-30 | Windscreen formula head-up display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413605.9U CN207752232U (en) | 2017-10-30 | 2017-10-30 | Windscreen formula head-up display device |
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| Publication Number | Publication Date |
|---|---|
| CN207752232U true CN207752232U (en) | 2018-08-21 |
Family
ID=63147069
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721413605.9U Active CN207752232U (en) | 2017-10-30 | 2017-10-30 | Windscreen formula head-up display device |
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| CN (1) | CN207752232U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3410175A4 (en) * | 2016-12-06 | 2018-12-05 | JVC Kenwood Corporation | Display device and display method |
| CN109435849A (en) * | 2018-10-10 | 2019-03-08 | 浙江零跑科技有限公司 | A kind of Vehicular head-up display system |
| CN114355610A (en) * | 2020-05-15 | 2022-04-15 | 华为技术有限公司 | Display device, head-up display system and image display method based on head-up display system |
-
2017
- 2017-10-30 CN CN201721413605.9U patent/CN207752232U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3410175A4 (en) * | 2016-12-06 | 2018-12-05 | JVC Kenwood Corporation | Display device and display method |
| EP3677949A1 (en) * | 2016-12-06 | 2020-07-08 | Jvc Kenwood Corporation | Display apparatus and display method |
| US10884242B2 (en) | 2016-12-06 | 2021-01-05 | Jvckenwood Corporation | Display apparatus and display method |
| CN109435849A (en) * | 2018-10-10 | 2019-03-08 | 浙江零跑科技有限公司 | A kind of Vehicular head-up display system |
| CN114355610A (en) * | 2020-05-15 | 2022-04-15 | 华为技术有限公司 | Display device, head-up display system and image display method based on head-up display system |
| CN114355610B (en) * | 2020-05-15 | 2023-07-18 | 华为技术有限公司 | Display device, head-up display system and image display method based on head-up display system |
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