CN103777353B - A kind of automobile head-up display device - Google Patents
A kind of automobile head-up display device Download PDFInfo
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- CN103777353B CN103777353B CN201410033772.5A CN201410033772A CN103777353B CN 103777353 B CN103777353 B CN 103777353B CN 201410033772 A CN201410033772 A CN 201410033772A CN 103777353 B CN103777353 B CN 103777353B
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Abstract
The invention belongs to automobile Display Technique field, particularly relate to a kind of automobile head-up display device, a kind of automobile head-up display device, it includes that inside has the housing of inner chamber, the side of described housing has the opening connecting described inner chamber, described interior intracavity is provided with the light source launching laser with scan mode, and by described laser roundtrip to form multistage round light path and to be projected to windshield and in the leaded light component of vehicle front display image via described opening.So, light source is located in housing, uses scan mode to send laser, by leaded light component by laser repeatedly roundtrip, form multistage light path, thus extend optical circuit path, it is achieved remote burnt imaging shows.So, display content can be invested in the distant place of automotive front end, the change avoiding human pilot checker between bowing and coming back and eyes focal length adjusts, again without using excessive radiator structure, it is greatly reduced the volume of product, and improve the utilization rate of light, it is ensured that display content is the most high-visible under strong daylight.
Description
Technical field
The invention belongs to automobile Display Technique field, particularly relate to a kind of automobile head-up display device.
Background technology
The automobile display (HUD) that comes back is by a kind of novel Display Technique, is utilize optical reflection former
Reason, is incident upon driver's dead ahead by driving informations such as speeds, and the word of projection and image adjust at focal length
Above far distance, it is possible to together with the data fusion easily extraneous scene shown with HUD.
Current HUD device on the market, mainly has two kinds:
One is closely to throw HUD, uses LED digital-scroll technique cast to become simple figure, display content is thrown
Penetrating on windshield, this type of HUD is cheap, it is easy to install, but display content is single, in display
Holding and be close on windscreen, human pilot reading of content needs remote Jiao on road surface to be from afar transferred to nearly Jiao, continuously
Change focal length can make eyestrain.
Another kind is with " BMW " and " Audi " far throw product as representative, and feature is that display content is many
Sample, display effect are preferable, but its volume is big, " BMW " and " Audi " dispatch from the factory outfit device,
It is inserted in during fabrication in vehicle.It is extremely difficult that other vehicles want to install this device additional.This kind of HUD uses
LED light source, TFT (TFT) class liquid crystal display screen shows source as content, when light is from the back of the body
Before tabula rasa emits, can sequentially pass the parts such as Polarizer, glass, liquid crystal, colored filter, by
In the accumulation that the penetrance of each part is lost, about 6% only can be left from the light of backlight, whole
The utilization rate of light source is low, under strong daylight, not fogging clear.
For improving display brightness, reach to show needs between HUD day, it is necessary to arrangement one after LCD screen
Group senior engineer leads high light LED backlight.So, the substantial amounts of heat of high-powered LED lamp output, it is necessary to arrange
The thermal component of large volume, this major reason that HUD small product size is huge the most in the market, one
The volume of individual HUD product nearly 1/3rd is fin；It addition, because the position installing HUD is being driven
In the confined space after the instrumental panel of the person of sailing front portion, thus can only Shi Qian entrucking factory design car body time reserved bigger
Position could be installed, and does not has the vehicle of reserved location, is difficult to later stage repacking, thus causes such HUD to produce
Product can not the universal phenomenon of large area.
Summary of the invention
It is an object of the invention to provide a kind of automobile head-up display device, it is intended to it is right to solve in prior art
The problem that the imaging effect difference of HUD product far Jiao and volume cause greatly being difficult to popularize.
The present invention is achieved in that a kind of automobile head-up display device, and it includes that inside has inner chamber
Housing, the side of described housing has the opening connecting described inner chamber, and described interior intracavity is provided with scanning
Mode launches the light source of laser, and by described laser roundtrip with formed multistage round light path and via
Described opening is projected to windshield and in the leaded light component of vehicle front display image.
Specifically, described leaded light component includes the light guide being arranged at described light source exit, and arranges
Multipair reflecting component in described inner chamber, along described housing side to the bearing of trend of opposite side, multipair institute
State reflecting component interval to arrange.
It is preferred that arbitrary described reflecting component includes the upper reflecting component that is oppositely arranged and lower reflecting component, described on
Reflecting component is located at described inner cavity top, and described lower reflecting component is placed in the bottom of described inner chamber.
Specifically, described lower reflecting component is obliquely installed respectively in described inner chamber, multiple described upper reflecting components
Reflecting component row in composition, multiple lower reflecting assemblies constitute a lower reflecting component row, described upper reflecting component row and
Described lower reflecting component row is staggered setting.
Further, the described lower reflecting component of neighbouring described opening part is curved reflector.
It can be driven to rotate to regulate angle it is preferred that described upper reflecting component and described lower reflecting component are respectively connected with
Degree changes the governor motion of light path.
Specifically, described opening part is covered with the optics that can be closed by described inner chamber, described optics device
The surface of part is cambered surface.
Preferably, described light source is micro laser projector.
Preferably, described light guide is Irregular Boundary Surface lens.
A kind of automobile head-up display device that the present invention provides, uses scan mode to launch laser, by leading
Optical assembly, by laser repeatedly roundtrip, forms multistage light path, thus extends optical circuit path, it is achieved far burnt
Imaging show.So, display content is invested in the distant place of automotive front end, is suspended on road surface, and
The surface conditions that driver remains focused on merges together, it is to avoid human pilot friendship between bowing and coming back
Change for conversion and eyes focal length adjusts, and alleviates the fatigue of eyes so that drive safer.Again
Without using excessive radiator structure, it is greatly reduced the volume of product, it is easy to popularize.Meanwhile,
Improve the utilization rate of light, it is ensured that display content is the most high-visible under strong daylight.
Accompanying drawing explanation
Fig. 1 be optical frames picture realize principle schematic；
Fig. 2 is multiple reflections light path schematic diagram；
Fig. 3 is the structural representation of a kind of automobile head-up display device that the embodiment of the present invention provides.
Fig. 4 is schematic diagram during a kind of automobile head-up display device use of embodiment of the present invention offer.
Description of symbols:
201 head-up display device 202 windshield
401 micro laser projector 203 eyes
402 Irregular Boundary Surface lens A map image
403 plane mirror B map thing
404 curved reflector L1 first paragraph light paths
405 housing L2 second segment light paths
406 optics Ln n-th section light paths
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
Embodiment, is further elaborated to the present invention.Should be appreciated that described herein being embodied as
Example only in order to explain the present invention, is not intended to limit the present invention.
As it is shown in figure 1, from optical frames picture realize principle knowable to: mirror in eyes 203 as body distance,
For eye 203 to mirror surface distance c plus mapping image A distance b to mirror surface.Permissible
Understand, the distance of usual eyes 203 to mirror surface, it is impossible to changing, namely eyes 203 are the most anti-
Penetrating minute surface to be in a relative maintenance and put, in the case, finding to be increased maps image A to eyeball 203
Distance, will increase and map image A to distance b of mirror surface, and map image A to reflecting mirror
Distance b in face is equal to mapping thing B distance a to mirror surface.As in figure 2 it is shown, in limited space
Increase mapping thing B also increases finding mapping image A to eyeball 203 to distance a of mirror surface
Distance.
Seeing shown in Fig. 3 and Fig. 4, a kind of automobile head-up display device 201 that the present invention provides, including one
Housing 405, this housing 405 has an inner chamber, can be encapsulated in the inner by each device by this housing 405,
It is easily installed adjustment.The left end of this inner chamber has an opening, and this opening is in communication with the outside, this interior intracavity
Being additionally provided with light source, this light source launches laser with scan mode, is additionally provided with leaded light component in described inner chamber, swashs
Light can form multistage round light path by this leaded light component and be projected on windshield via opening,
And showing image in vehicle front, this display image shows has the parameters in running car.
The automobile head-up display device 201 of above-mentioned offer, uses scan mode to launch laser, by guide-lighting group
Part, by laser repeatedly roundtrip, forms multistage light path, thus extends laser and reach the light path of mirror surface
Path, it is achieved remote burnt imaging shows.Thus the information of each instrument is shown the distant place at automotive front end,
Being suspended on road surface, together with the surface conditions fusion remained focused on driver, driver need not bow
Checking the information such as the speed per hour of instrument, rotating speed, the image on the front of the viewing automobile that only need to come back shows, just
The information of each instrument can be obtained, owing to driver remains the attitude of new line, it is to avoid bow and come back
Between checker, thus have ignored the Rapid Variable Design of external environment, eyes 203 focal length of driver
It is constantly in a steady statue, it is not necessary to persistently adjust, adds the comfort level of eyes 203, it is to avoid
Driver's eyes 203 changes the potential safety hazard that the time difference caused.Meanwhile, light source is launched sharp with scan mode
Light, it is not necessary to use excessive radiator structure, is greatly reduced the volume of product, and improves the utilization of light
Rate, it is ensured that display content is the most high-visible under strong daylight, beneficially wide popularization and application.
Specifically, seeing shown in Fig. 3 and Fig. 4, above-mentioned leaded light component includes being arranged at light source exit
Light guide and the multipair reflecting component being arranged in inner chamber.Preferably, this light guide is that Irregular Boundary Surface is saturating
Mirror 402.Side relative with described opening along described housing, towards the direction of described opening, is namely schemed
Horizontal direction shown in 3, between each reflecting component, interval is arranged.As shown in Figure 4, laser is travelled to and fro between reflective
In part, and by the right-hand member of housing towards opening direction, laser sequentially passes through each reflecting component thus forms multistage
Light path, these light paths are followed successively by first paragraph light path L1, second segment light path L2, the 3rd section of light path L3,
Four sections of light paths L4, the like to N section light path Ln.So, the mapping image A's that human eye is seen
Distance P=L1+L2+L3+L4 ... Ln+Z (eyes 203 to mirror surface distance Z).Also it is achieved that
The repeatedly radiation of laser forms multistage light path, designs the length value of needs in the confined space.Can be square
Just together with the data fusion that extraneous scene is shown with HUD.Really realize eyes 203 without adjusting
The delay that whole focal length produces, with uncomfortable, greatly reduces the potential safety hazard that eyes 203 are changed the time difference and caused.
Specifically, in the present embodiment, it is right, so, by miniature sharp that upper reflecting component and lower reflecting component have five
The laser of light projector 401 injection is travelled to and fro between reflecting component and lower reflecting component successively, and simple in construction is tight
Gather.Certainly, according to actual projection needs, reflecting component and the quantity of lower reflecting component are rationally set, as
Arrange 7 to, 10 to etc., or adjust upper distance between reflecting component and lower reflecting component, extend light path
Length, thus really realize the remote burnt imaging of HUD, the Image Adjusting projected by HUD is in vehicle front
The most remote position.
As it is shown on figure 3, arbitrary reflecting component all includes by the upper reflecting component being oppositely arranged and lower reflecting component, its
In, upper reflecting component is located at inner cavity top, and lower reflecting component is placed in the bottom of inner chamber, and light source is fixed on inner chamber
Bottom.The laser vertical that light source sends invests light guide, and laser vertical is projeced into through light guide is oblique
Reflecting component, reflexes on lower reflecting component, again reflexes to opening via lower reflecting component, as shown in Figure 4,
Laser is through opening directive windshield 202, by the refraction display image of windshield 202 in automobile
Far ahead.So, it is ensured that laser is turned back between upper reflecting component and lower reflecting component, it is simple to regulation swashs
Light travels to and fro between the angle in described leaded light component and optical path length, and ensure that laser have one the most steady
Fixed light path, simple and compact for structure, stability is high.
It should be understood that regulation light source that the most also can be suitable is fixed on the position of inner chamber, as by light
The right-hand member of inner chamber body is fixed in source, and opening is arranged at the top of inner chamber body, as long as the laser that light source sends leads to
The length of light path can be extended, all within protection scope of the present invention after crossing leaded light component.
Specifically, lower reflecting component is obliquely installed respectively in inner chamber, and multiple upper reflecting components constitute upper reflecting component
OK, multiple lower reflecting assemblies constitute a lower reflecting component row, described upper reflecting component row and described lower reflecting component
The capable setting that is staggered.Namely go up each upper reflecting component in reflecting component row and lower reflecting component row and each lower reflecting component
All in the vertical directions stagger a distance, so, in same reflecting component the center of upper reflecting component with lower instead
The line of centres of light part becomes to be obliquely installed, and in adjacent two reflecting components, the center of upper reflecting component and lower reflecting component is even
Line be arranged in parallel.So, so that it may ensure the reliability of laser transmission in leaded light component, and more have
The angle of inclination needing also adjustable reflecting component of body, and the distance between upper reflecting component and lower reflecting component,
And then the optical path length of change Laser Transmission, change image and be shown in the position of vehicle front, range of accommodation
Extensively, suitability is good.
Further, upper reflecting component and lower reflecting component are respectively connected with and it can be driven to rotate to regulate Angulation changes
The governor motion (not shown) of light path.By governor motion, reflecting component and lower reflecting component in fine setting
Between distance and angle during laser projections, thus focus, change the display position of image, make
Obtain image to merge with extraneous scene, really realize eyes 203 without prolonging that adjusting focal length produces
Late with uncomfortable, greatly reduce the potential safety hazard that eyes 203 are changed the time difference and caused.So, debugging is convenient,
Practicality is good.
Preferably, described light source is micro laser projector 401.Use laser as light source, throw with laser
Shadow mode imaging, controls tricolor laser scanogram by signal.Its color domain coverage ratio is the most permissible
Up to more than the 90% of human eye gamut range.This 62% color domain coverage ratio higher than current LED television carries
A high class.The raising of color domain coverage ratio, be possible not only to make whole picture seem more truly,
Have levels sense, penetrating sensation, and the definition of picture has relatively as well as the raising of color saturation simultaneously
Significantly promote.Due to the backlight using laser to show as image, so can make is thinner,
It is easily achieved the miniaturization of products.Avoid the sense of discomfort that human eye is caused by the iridescent of fluorescent material generation, and
Human eye is not radiated, more safe and reliable.
In the present embodiment, micro laser projector 401 is in the way of straight scanning or spot scan, and light is swashed
Light light beam through special expand shaping device after project on windshield 202 again, projection scanning
Real image project on windshield 202, by the light transmittance ratio of windshield 202, thus demonstrate
The image of high-res.
Preferably, in the present embodiment, upper reflecting component is plane mirror 403.Wherein under described opening
Reflecting component is curved reflector 404, and other lower reflecting components are plane mirror 403.Certainly, as required
Also upper reflecting component and lower reflecting component the optics for other can be selected, the laser of image can be realized showing
Light path, is also feasible.
It addition, be packaged with an optics 406 in opening part, it is preferable that optics 406 is hyaline membrane
Or transparent sheet, its surface has radian.So, it can be ensured that good light transmission, meanwhile, again can be by
The inner chamber of housing is closed, thus in protection, each device of intracavity is not contaminated, and uses more reliable and more stable.
Specifically, the surface of this optics 406 is cambered surface outwardly, so, it is simple to installation settings.
It should be noted that the orientation such as above mentioned left end, bottom, all for ease of understanding
Schematically illustrate, it is not limited to this.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of invention and principle, should be included in this
Within the protection domain of invention.
Claims (8)
1. an automobile head-up display device, it is characterised in that it includes that inside has the housing of inner chamber,
The side of described housing has the opening connecting described inner chamber, and described interior intracavity is provided with to be sent out with scan mode
Penetrate the light source of laser, and by described laser roundtrip to form multistage round light path and to open via described
Mouth is projected to windshield and in the leaded light component of vehicle front display image；Described leaded light component bag
Include the light guide being arranged at described light source exit, and the multipair reflecting component being arranged in described inner chamber,
Along described housing side to the bearing of trend of opposite side, multipair described reflecting component interval is arranged；Arbitrary described
Reflecting component includes the upper reflecting component that is oppositely arranged and lower reflecting component, and described upper reflecting component is located at described inner chamber top
Portion, described lower reflecting component is placed in the bottom of described inner chamber；The laser that described light source sends passes described leaded light
Part, and turn back successively in each to the described upper reflecting component in described reflecting component with between described lower reflecting component,
Described housing is penetrated via described opening.
A kind of automobile head-up display device the most according to claim 1, it is characterised in that: described
Lower reflecting component is obliquely installed respectively in described inner chamber, and multiple described upper reflecting components constitute upper reflecting component row,
Multiple described lower reflecting assemblies constitute a lower reflecting component row, described upper reflecting component row and described lower reflecting component
The capable setting that is staggered.
A kind of automobile head-up display device the most according to claim 1 and 2, it is characterised in that:
The described lower reflecting component of neighbouring described opening part is curved reflector.
A kind of automobile head-up display device the most according to claim 1 and 2, it is characterised in that:
Described upper reflecting component is plane mirror.
A kind of automobile head-up display device the most according to claim 1 and 2, it is characterised in that:
Described upper reflecting component and described lower reflecting component are respectively connected with and it can be driven to rotate with regulation Angulation changes light path
Governor motion.
A kind of automobile head-up display device the most according to claim 1 and 2, it is characterised in that:
Described opening part is covered with the optics that can be closed by described inner chamber, and the surface of described optics is arc
Face.
A kind of automobile head-up display device the most according to claim 1 and 2, it is characterised in that:
Described light source is micro laser projector.
A kind of automobile head-up display device the most according to claim 1 and 2, it is characterised in that:
Described light guide is Irregular Boundary Surface lens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410033772.5A CN103777353B (en) | 2014-01-23 | 2014-01-23 | A kind of automobile head-up display device |
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| CN201410033772.5A CN103777353B (en) | 2014-01-23 | 2014-01-23 | A kind of automobile head-up display device |
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| CN103777353B true CN103777353B (en) | 2016-08-17 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103995420B (en) * | 2014-05-29 | 2016-03-30 | 深圳点石创新科技有限公司 | Photoimaging systems and there is the projection imaging system of this photoimaging systems |
| CN105445936B (en) * | 2014-09-23 | 2018-03-16 | 矽创电子股份有限公司 | Optical imaging device |
| CN105301776A (en) * | 2015-11-10 | 2016-02-03 | 杭州炽云科技有限公司 | Virtual-image imaging system of triple reflection |
| CN105607258A (en) * | 2016-02-03 | 2016-05-25 | 重庆矢崎仪表有限公司 | Light-angle-adjustable vehicle display device |
| CN105572878A (en) * | 2016-02-03 | 2016-05-11 | 重庆矢崎仪表有限公司 | Display device for vehicle |
| CN105842971B (en) * | 2016-05-27 | 2018-05-11 | 华为技术有限公司 | A kind of projection arrangement and method |
| CN109085699A (en) * | 2018-04-24 | 2018-12-25 | 惠州市华阳多媒体电子有限公司 | The HUD light path system and device of a kind of Combiner between image source and reflecting mirror |
| EP3807695B1 (en) * | 2018-06-15 | 2024-04-24 | Continental Automotive Technologies GmbH | Optical waveguide for a display device |
| CN109709675B (en) * | 2019-02-26 | 2021-11-19 | 京东方科技集团股份有限公司 | Augmented reality display device and augmented reality glasses |
| CN115016125A (en) * | 2022-07-07 | 2022-09-06 | 业成科技（成都）有限公司 | Image generation module, head-up display system and vehicle |
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