CN109932819A - Head up display - Google Patents
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- CN109932819A CN109932819A CN201711362136.7A CN201711362136A CN109932819A CN 109932819 A CN109932819 A CN 109932819A CN 201711362136 A CN201711362136 A CN 201711362136A CN 109932819 A CN109932819 A CN 109932819A
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- 230000011514 reflex Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 208000003464 asthenopia Diseases 0.000 abstract description 4
- 210000003128 head Anatomy 0.000 description 31
- 230000003287 optical effect Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The present invention is suitable for mobile unit technical field, provide a kind of head up display, including the first image source, second image source, plane mirror and concave mirror, plane mirror is movably arranged between the first image source and concave mirror, the reflecting surface of plane mirror is towards concave mirror, second image source is set to side of the plane mirror towards concave mirror, the light that second image source issues reflexes to concave mirror through plane mirror, the light timesharing of the light that first image source issues and the second image source sending by plane mirror reflection is reflexed to the windshield of automobile by concave mirror, different distance is imaged in by windshield.The head up display makes the first image source and the second image source timesharing image in the different distance in front of windshield, can be blended in well image in the preferable sighting distance of driver, avoids visual fatigue, promotes driving safety.Second light of the second image source folds transmission, and then reduces machine volume, to the better adaptability of installation space.
Description
Technical field
The invention belongs to mobile unit technical field, in particular to a kind of head up display.
Background technique
It is well known that head up display is usually mounted in automobile, effect is to allow driver without the disk letter that watches the instruments of bowing
It ceases and is absorbed in driving, be obtained with desired information in the virtual image being located in front of the visual field formed from head up display, from
And it avoids because of eyes focal attention instrument board bring driving safety problem in running car.Generally, head up display in addition to
It can show traditional speed, oil consumption, outside temperature, the information of the augmented reality of road conditions can also be shown, such as deviation, pedestrian
Mark, roadblock identification etc..However as the difference for driving car speed, the distance in the vehicle front visual field of human eye observable is not yet
Together, thus in order to play to a greater extent head up display do not have to bow it is seen that related driving information purpose, need by
The information of head up display project to driver can make the void of head up display in visual vehicle front road view
The visual field effective integration of picture and human eye concern, avoids deliberately zoom bring eye fatigue, it is therefore desirable to it is aobvious can to convert new line
Show the projector distance of device.
A kind of head up display that different distance may be implemented and show is mentioned in the prior art, uses the tool of a piece of extension
There are two the reflecting mirrors of reflecting region image source to be imaged respectively, and which increase the sizes of eyeglass, so that the die sinking of eyeglass is infused
It is moulded into this greatly to increase, and the increase of eyeglass, in injection moulding process, yields is greatly reduced, and is not easy to product
Volume production；And it is broadening due to eyeglass, the volume of head up display greatly increases, and is not easy to pacify in the extensive use of automotive interior
Dress.
Summary of the invention
The purpose of the present invention is to provide a kind of head up display, it is intended to solve the variable new line of traditional image-forming range and show
Body product is big, yield is low and the technical issues of to the bad adaptability of installation space.
The invention is realized in this way head up display, for being installed in automobile, including the first image source, the second image source,
Plane mirror and concave mirror, the plane mirror be movably set in first image source and the concave mirror it
Between, for the reflecting surface of the plane mirror towards the concave mirror, second image source is set to the plane mirror
Towards the side of the concave mirror, and the light that second image source issues reflexes to the concave surface through the plane mirror
Reflecting mirror, the first light that the concave mirror issues first image source and by plane mirror reflection the
The second light timesharing that two image sources issue reflexes to the windshield of the automobile, by the windshield image in it is different away from
From.
Further, first image source and the second image source are the throwing shown to the instrument board information of the automobile
Shadow instrument.
Further, first image source and the second image source are equipped with map software, and first image source and the second image source are defeated
Image out further includes driving-environment information.
Further, the second light that the center line and second image source for the first light that first image source issues issue
The center line of line is symmetrical about the plane mirror.
Further, the light path between first image source and the concave mirror and second image source with it is described recessed
Light path between the reflecting mirror of face differs.
Further, the head up display further includes first movement device, the first movement device and the plane
Reflecting mirror connection, for the plane mirror being removed or moving between the concave mirror and the first image source.
Further, the head up display further includes eyeglass switching device and transmissive mirror, the transmissive mirror and described flat
Face reflecting mirror is connect with the eyeglass switching device, and the eyeglass switching device is anti-by the transmissive mirror and plane for timesharing
Mirror is penetrated to cut between first image source and concave mirror.
Further, the head up display further includes image source switching device, for timesharing open first image source and
Second image source, the plane mirror are half-reflecting half mirror.
Further, the head up display further includes the control device connecting with the speed measuring device of the automobile, is used for
The incident concave mirror of the first light that the first image source according to speed real-time control issues or control second picture
The incident concave mirror of the second light that source issues；
The control device is connect with the mobile device in the claim 6；
Alternatively, the control device is connect with the eyeglass switching device in the claim 7；
Alternatively, the control device is connect with the image source switching device in the claim 8.
Further, the head up display further includes the second mobile device connecting with the concave mirror.
Head up display provided by the invention has the following beneficial effects:
The head up display includes the first image source, the second image source, plane mirror and concave mirror, by the way that plane is anti-
Mirror is penetrated into and out between the first image source and concave mirror, making the first image source and the second image source timesharing image in windshield
The different distance in front, and then in different driving modes, image can be blended in well to the preferable sighting distance of driver
On, avoid image and sighting distance from having big difference and lead to visual fatigue, and then promote driving safety.In addition, the first image source and second
Image source is divided into the two sides of plane mirror, and the second image source is set to side of the plane mirror towards concave mirror, makes
Second light of the second image source folds transmission, and then reduces machine volume, can be used in the narrow automobile of installation space, and then right
The better adaptability of installation space.Also, concave mirror utilization rate is high, and is not required to increase its area, and then can reduce cost,
Product yield is high.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of head up display provided in an embodiment of the present invention；
Fig. 2 is the eyeglass switching device structural schematic diagram of head up display provided in an embodiment of the present invention；
Fig. 3 is another structural schematic diagram of head up display provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It should be noted that when component is referred to as " being fixed on " or " being set to " another component, it can directly or
It connects and is located on another component.When a component referred to as " is connected to " another component, it be can be directly or indirectly
It is connected on another component.The orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to this patent.Term " first ",
" second " is used merely to facilitate description purpose, is not understood to indicate or imply relative importance or implicitly indicates technical characteristic
Quantity.The meaning of " plurality " is two or more, unless otherwise specifically defined.
In order to illustrate technical solutions according to the invention, it is described in detail below in conjunction with specific accompanying drawings and embodiments.
Referring to Fig. 1, the embodiment of the present invention provides a kind of head up display, for being installed in automobile, make driver can
Not have to bow to watch the instruments disk information and be absorbed in driving.The head up display includes the first image source 10, the second image source 20, puts down
Face reflecting mirror 30 and concave mirror 40, wherein plane mirror 30 is movably set in the first image source 10 and the concave reflection
Between mirror 40, for the reflecting surface of plane mirror 30 towards concave mirror 40, the second image source 20 is set to 30 court of plane mirror
To the side of concave mirror 40, and the light that the second image source 20 issues reflexes to concave mirror 40 through plane mirror 30, recessed
What face reflecting mirror 40 was issued by the first light that the first image source 10 issues and by the second image source 20 that plane mirror 30 reflects
Second light timesharing reflexes to the windshield 50 of automobile, images in different distance by windshield 50.
Specifically, the first image source 10 and the second image source 20 are used to display instrument dial plate information, by the information image directly or
Concave mirror 40 is invested by plane mirror 30, first image source 10 and the second image source 20 can be the instrument to automobile
The projector that disk information is projected, instrument board information can be, but not limited to obtain from the OBD interface of automobile.Plane mirror
30 are movably set between the first image source 10 and the concave mirror 40, i.e., when needing to show the information of the first image source 10,
Plane mirror 30 removes optical path, avoids the first light for blocking the first image source 10, while can not also reflect the second image source 20
Second light forms the corresponding virtual image of the first light by windshield 50 at this time.When needing to show the information of the second image source 20,
Plane mirror 30 is moved into optical path, the first light is blocked, while reflecting the second light, forms second by windshield 50 at this time
The corresponding virtual image of light, distance of two virtual images apart from windshield 50 is different, to adapt to different driving modes, for example (,) it is high
Speed drives or drives at low speed.
The head up display that the embodiment provides has the following technical effect that
The head up display includes the first image source 10, the second image source 20, plane mirror 30 and concave mirror 40, is passed through
By plane mirror 30 into and out between the first image source 10 and concave mirror 40, make the first image source 10 and the second image source 20
Timesharing images in the different distance in 50 front of windshield, and then in different driving modes, can melt well image
Together in the preferable sighting distance of driver, image and sighting distance is avoided to have big difference and lead to visual fatigue, and then promotes driving safety.
In addition, the first image source 10 and the second image source 20 are divided into the two sides of plane mirror 30, and to be set to plane anti-for the second image source 20
Penetrate mirror 30 makes the second light of the second image source 20 fold transmission towards the side of concave mirror 40, and then reduces complete machine body
Product, can be used in the narrow automobile of installation space, and then to the better adaptability of installation space.Also, concave mirror utilizes
Rate is high, and is not required to increase its area, and then can reduce cost, and product yield is high.
Further, the first image source 10 and the second image source 20 are also provided with map software, the first image source 10 and the second picture
The image that source 20 exports further includes driving-environment information, such as road markings, pedestrian's mark, road in addition to including instrument board information
Barrier identification etc., and then promote safety.
Further, in order to be effectively compressed optical path and control imaging position, the first light for issuing the first image source 10
The center line for the second light that center line and the second image source 20 issue is symmetrical about plane mirror 30, in this way, can make first
The same path transmission in the part of light and the second light between plane mirror 30 and concave mirror 40, and then make concave reflection
The input path and reflected light path of mirror 40 keep stablizing, and are also consistent the position for being incident to windshield 50, and then are formed
The high and low position of two virtual images keeps stablizing.It is understood that light path between the first image source 10 and concave mirror 40 with
Light path between second image source 20 and the concave mirror 40 differs, and the two virtual images distance for forming windshield 50 is not
Deng, this be control virtual image distance effective and easy to implement means.In addition, due to the second image source 20 and concave mirror 40
Between optical path turn back, therefore the light path preferably between the first image source 10 and concave mirror 40 is less than the second image source 20 and concave surface
Light path between reflecting mirror 40, to save space.Certainly, the light path between the first image source 10 and concave mirror 40 can also be big
Light path between the second image source 20 and concave mirror 40.
Further, it in order to keep the imaging of windshield 50 clearer, can be sticked on 50 surface of windshield high anti-
Film.It can also further use wedge-shaped windshield 50 to eliminate ghost image.
About the switching of the first image source 10 and the second image source 20, can be realized by following several embodiments:
Following embodiment is with the light path of the first image source 10 and concave mirror 40 less than the second image source 20 and concave reflection
For the light path of mirror 40, but the present invention is not limited to this.
First embodiment: referring to Fig. 1, and head up display further includes first movement device 60, first movement device 60 and flat
Face reflecting mirror 30 connects, and for plane mirror 30 being removed or moving between concave mirror 40 and the first image source 10, that is, needs
When the second image source 20 being wanted to be imaged, plane mirror 30 is moved between concave mirror 40 and the first image source 10, the first light is blocked
Line L1 reflects the second light L2, forms remote second image P2.When the first image source 10 being needed to be imaged, by plane mirror
30 remove between concave mirror 40 and the first image source 10, avoid blocking the first light L1, do not receive and reflect the second light
L2 forms the first image P1 of short distance.
Second embodiment: referring to figs. 2 and 3, head up display further includes eyeglass switching device 70 and transmissive mirror 80, light transmission
Mirror 80 and plane mirror 30 are connect with eyeglass switching device 70, and specifically, transmissive mirror 80 and plane mirror 30 can divide
Wei not be semicircle, the two forms complete circle, and eyeglass switching device 70 may include for being fixedly connected with transmissive mirror 80 and plane
The shaft 71 and drive shaft 71 of reflecting mirror 30 are rotated to switch the driver 72 of transmissive mirror 80 and plane mirror 30.It should
Eyeglass switching device 70 for timesharing by transmissive mirror 80 and plane mirror 30 cut the first image source 10 and concave mirror 40 it
Between.That is, it needs to cut plane mirror 30 between concave mirror 40 and the first image source 10 when the second image source 20 is imaged, hide
The first light L1 is kept off, the second light L2 is reflected, forms remote second image P2.It, will be saturating when the first image source 10 being needed to be imaged
Light microscopic 80 is cut between concave mirror 40 and the first image source 10, and plane mirror 30 is removed concave mirror 40 and the first picture
Between source 10, the first light L1 is transmitted, the second light L2 is not reflected, forms the first image P1 of short distance.
3rd embodiment: head up display further includes image source switching device, opens the first image source 10 and second for timesharing
Image source 20, plane mirror 30 are half-reflecting half mirror.That is, it needs to open the second image source 20 when the second image source 20 is imaged, the is closed
One image source 10, half-reflecting half mirror reflect the second light L2, form remote second image P2.The first image source 10 is needed to be imaged
When, the first image source 10 is opened, the second image source 20 is closed, half-reflecting half mirror transmits the first light L1, forms the first figure of short distance
As P1.
In three of the above embodiment, first movement device 60, eyeglass switching device 70 and image source switching device can be manual
Operation, is preferably automatically brought into operation according to driving mode, specifically, head up display further includes connecting with the speed measuring device of automobile
Control device, the first light L1 incidence concave mirror 40 for being issued according to the first image source of speed real-time control 10 or control
Make the second light L2 incidence concave mirror 40 of the second image source 20 sending.That is, in the first above-mentioned embodiment, control device
It is connect with first movement device 60；In above-mentioned second of embodiment, control device is connect with eyeglass switching device 70；Above-mentioned
In the third embodiment, control device is connect with image source switching device.Allow the real-time adjust automatically of head up display in this way
Operating mode, more intelligently.
With further reference to Fig. 3, in order to keep image-forming range adjustability more preferable, which further includes and concave mirror
Second mobile device 80 of 40 connections.Concave mirror 40 is moved forward and backward along its optical axis by the second mobile device 80, it can be with
Make imaging position front and back consecutive variations, to adapt to the different visual field distances of driver, usage experience is more preferable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. head up display, for being installed in automobile, which is characterized in that including the first image source, the second image source, plane mirror
And concave mirror, the plane mirror are movably set between first image source and the concave mirror, it is described flat
For the reflecting surface of face reflecting mirror towards the concave mirror, second image source is set to the plane mirror towards described recessed
The side of face reflecting mirror, and the light that second image source issues reflexes to the concave mirror, institute through the plane mirror
State the first light that concave mirror issues first image source and the second image source hair by plane mirror reflection
The second light timesharing out reflexes to the windshield of the automobile, images in different distance by the windshield.
2. head up display as described in claim 1, which is characterized in that first image source and the second image source are to described
The projector that the instrument board information of automobile is shown.
3. head up display as claimed in claim 2, which is characterized in that first image source and the second image source are soft equipped with map
The image of part, first image source and the output of the second image source further includes driving-environment information.
4. head up display as described in claim 1, which is characterized in that the center for the first light that first image source issues
The center line for the second light that line is issued with second image source is symmetrical about the plane mirror.
5. head up display as claimed in claim 4, which is characterized in that between first image source and the concave mirror
Light path and second image source and the concave mirror between light path differ.
6. head up display as described in claim 1, which is characterized in that the head up display further includes first movement dress
It sets, the first movement device is connect with the plane mirror, described recessed for removing or moving into the plane mirror
Between face reflecting mirror and the first image source.
7. head up display as described in claim 1, which is characterized in that the head up display further includes eyeglass switching device
And transmissive mirror, the transmissive mirror and the plane mirror are connect with the eyeglass switching device, the eyeglass switching device
The transmissive mirror and plane mirror are cut between first image source and concave mirror for timesharing.
8. head up display as described in claim 1, which is characterized in that the head up display further includes image source switching dress
It sets, opens first image source and the second image source for timesharing, the plane mirror is half-reflecting half mirror.
9. the head up display as described in claim 6,7 or 8, which is characterized in that the head up display further include with it is described
The control device of the speed measuring device connection of automobile, the first light issued for the first image source according to speed real-time control enter
Penetrate the incident concave mirror of the second light that the concave mirror or control second image source issue；
The control device is connect with the mobile device in the claim 6；
Alternatively, the control device is connect with the eyeglass switching device in the claim 7；
Alternatively, the control device is connect with the image source switching device in the claim 8.
10. head up display as claimed in any one of claims 1 to 8, which is characterized in that the head up display further include with
Second mobile device of the concave mirror connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362136.7A CN109932819B (en) | 2017-12-18 | 2017-12-18 | Head-up display |
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|---|---|---|---|
| CN201711362136.7A CN109932819B (en) | 2017-12-18 | 2017-12-18 | Head-up display |
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| CN109932819A true CN109932819A (en) | 2019-06-25 |
| CN109932819B CN109932819B (en) | 2024-06-14 |
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| CN201711362136.7A Active CN109932819B (en) | 2017-12-18 | 2017-12-18 | Head-up display |
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