CN103777353A - Automobile head-up display device - Google Patents
Automobile head-up display device Download PDFInfo
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- CN103777353A CN103777353A CN201410033772.5A CN201410033772A CN103777353A CN 103777353 A CN103777353 A CN 103777353A CN 201410033772 A CN201410033772 A CN 201410033772A CN 103777353 A CN103777353 A CN 103777353A
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Abstract
The invention belongs to the technical field of automobile display, and particularly relates to an automobile head-up display device. The automobile head-up display device comprises a shell which is internally provided with an inner cavity. An opening communicated with the inner cavity is formed in one side of the shell. A light source and a light guiding assembly are arranged inside the inner cavity, wherein the light source emits laser in a scanning mode, and the light guiding assembly reflects the laser in a reciprocating mode so as to form multi-stage reciprocating light paths, projects the multi-stage reciprocating light paths to a windscreen of an automobile through the opening and displays an image in the front of the automobile. Therefore, the light source is arranged inside the shell and emits the laser in the scanning mode, and the laser is reflected repeatedly in the reciprocating mode through the light guiding assembly to form the multi-stage light paths, so that the length of the light paths is extended, and telephoto imaging display is achieved. In this way, the display content can be projected in the distance at the front end of the automobile, alternating conversion between head drop and head up and variation adjustment of the focal length of the eyes of a driver are avoided, an excessively-large heat radiation structure does not need to be adopted, the size of the automobile head-up display device is greatly reduced, the light utilization rate is improved, and it is ensured that the display content can be clear and visible even under the strong sunlight.
Description
Technical field
The invention belongs to automobile display technique field, relate in particular to a kind of automobile head-up display device.
Background technology
Automobile comes back and shows that (HUD) is by a kind of novel display technique, it is the principle of utilizing optical reflection, the driving informations such as the speed of a motor vehicle are incident upon to driver dead ahead, word and the image of projection are adjusted at above the far distance of focal length, can easily the data of extraneous scene and HUD demonstration be merged.
Current HUD device on the market, mainly contains two kinds:
One is closely to throw HUD, adopt LED digital display tube type to become simple figure, displaying contents is incident upon on windshield, this type of HUD is cheap, installation is easy, but displaying contents is single, displaying contents is close on windscreen, and human pilot reading of content needs Jiao far away on road surface to be from afar transferred to nearly Jiao, and continuous change focal length can make eye fatigue.
Another kind is the far throw product take " BMW " and " Audi " as representative, and feature is that displaying contents variation, display effect are better, but its volume is large, by " BMW " and " Audi " the outfit device that dispatches from the factory, is inserted in during fabrication in vehicle.It is extremely difficult that other vehicles want to install additional this device.This class HUD adopts LED light source, TFT(Thin Film Transistor (TFT)) class liquid crystal display shows source as content, before light emits from backlight, can be sequentially through Polarizer, glass, liquid crystal, the parts such as colored filter, due to the accumulation of the penetrance loss of each part, only can be left 6% left and right from the light of backlight, the utilization factor of whole light source is low, under strong daylight, not fogging clear.
For improving display brightness, reach between HUD day and show needs, the one group of senior engineer that just need to arrange after LCD screen leads high light LED-backlit lamp.Like this, the heat that high-powered LED lamp output is a large amount of, just need to arrange the thermal component of large volume, and this is the huge major reason of HUD small product size in the market namely, and the volume of a HUD product nearly 1/3rd is heat radiator; In addition, because in the finite space of the position that HUD is installed after the anterior panel board of driver, thus can only Shi Qian entrucking factory when design car body reserved larger position could install, there is no the vehicle of reserved location, be difficult to later stage repacking, thereby cause such HUD product can not the universal phenomenon of large area.
Summary of the invention
The object of the present invention is to provide a kind of automobile head-up display device, be intended to solve in prior art and volume poor to HUD product burnt imaging effect far away and cause being greatly difficult to universal problem.
The present invention is achieved in that a kind of automobile head-up display device, it comprises that inside has the housing of inner chamber, one side of described housing has the opening that is communicated with described inner chamber, in described inner chamber, be provided with the light source with scan mode Emission Lasers, and described laser is carried out to back reflective to form multistage round light path and to be projected to windshield and to show the leaded light component of image in vehicle front via described opening.
Particularly, described leaded light component comprises the light guide that is arranged at described light source exit, and is arranged at the multipair reflecting component in described inner chamber, the bearing of trend along described housing one side to opposite side, and multipair described reflecting component interval is arranged.
Preferably, arbitrary described reflecting component comprises the upper reflecting component and the lower reflecting component that are oppositely arranged, and described upper reflecting component is located at described inner cavity top, and described lower reflecting component is placed in the bottom of described inner chamber.
Particularly, described lower reflecting component is obliquely installed respectively in described inner chamber, and it is capable that multiple described upper reflecting components form upper reflecting component, and it is capable that multiple lower reflecting assemblies form a lower reflecting component, the capable setting that is staggered of the capable and described lower reflecting component of described upper reflecting component.
Further, the described lower reflecting component that is close to described opening part is curved reflector.
Preferably, described upper reflecting component and described lower reflecting component are all connected with and can drive it to rotate the governor motion that changes light path with adjusting angle.
Particularly, described opening part is covered with can be by the optical device of described inner chamber sealing, and the surface of described optical device is cambered surface.
Preferably, described light source is micro laser projector.
Preferably, described light guide is irregular toroidal lens.
A kind of automobile head-up display device provided by the invention, adopts scan mode Emission Lasers, by leaded light component, laser is repeatedly carried out to back reflective, forms multistage light path, thereby extends light path path, realizes burnt imaging far away and shows.So, displaying contents is invested in to the distant place of automotive front end, is suspended on road surface, together with the road surface situation fusion that keeps paying close attention to driver, avoid the checker of human pilot between bowing and coming back and the variation adjustment of eyes focal length, alleviated the fatigue of eyes, make to drive safer.Without adopting excessive radiator structure, greatly dwindled the volume of product again, s is easy to popularize.Meanwhile, improve the utilization factor of light, guaranteed that displaying contents is also high-visible under strong daylight.
Accompanying drawing explanation
Fig. 1 is the principle schematic that realizes of optical frames picture;
Fig. 2 is multiple reflections light path schematic diagram;
Fig. 3 is the structural representation of a kind of automobile head-up display device of providing of the embodiment of the present invention.
Fig. 4 is a kind of automobile head-up display device that the embodiment of the present invention the provides schematic diagram while using.
Description of symbols:
201 head-up display device 202 windshield
401 micro laser projector 203 eyes
402 irregular toroidal lens A mapping images
403 plane mirror B mapping things
404 curved reflector L1 first paragraph light paths
405 housing L2 second segment light paths
406 optical device Ln n section light paths
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the principle that realizes from optical frames picture: mirror the picture body distance in eyes 203, for eye 203 adds the distance b of mapping image A to mirror surface to mirror surface distance c.Be appreciated that, conventionally eyes 203 are to the distance of mirror surface, cannot change, namely the relative mirror surface of eyes 203 is put in a relative maintenance, in the case, increase the distance of finding mapping image A to eyeball 203, will increase the distance b of mapping image A to mirror surface, and mapping image A equals to shine upon the distance a of thing B to mirror surface to the distance b of mirror surface.As shown in Figure 2, in limited space, increase mapping thing B and also just increased the distance of finding mapping image A to eyeball 203 to the distance a of mirror surface.
Shown in Fig. 3 and Fig. 4, a kind of automobile head-up display device 201 provided by the invention, comprises a housing 405, and this housing 405 has an inner chamber, can be by each device package in the inner by this housing 405, and be convenient to install and adjust.The left end of this inner chamber has an opening, this opening is in communication with the outside, in this inner chamber, be also provided with light source, this light source is with scan mode Emission Lasers, in described inner chamber, be also provided with leaded light component, laser can be formed multistage round light path and is projected on windshield via opening by this leaded light component, and shows image in vehicle front, and this demonstration image shows has the parameters in running car.
The above-mentioned automobile head-up display device providing 201, adopts scan mode Emission Lasers, by leaded light component, laser is repeatedly carried out to back reflective, forms multistage light path, thereby prolongation laser reaches the light path path of mirror surface, realizes burnt imaging far away and shows.Thereby the information of each instrument is presented to the distant place of automotive front end, be suspended on road surface, together with the road surface situation fusion that keeps paying close attention to driver, driver does not need to bow and checks the speed per hour of instrument, the information such as rotating speed, only need new line to watch the image on the front of automobile to show, just can obtain the information of each instrument, because driver remains the attitude of new line, avoid the checker between bowing and coming back, thereby ignore the quick variation of external environment, driver's eyes 203 focal lengths are always in a steady state (SS), do not need to continue to adjust, increase the comfort level of eyes 203, avoid driver's eyes 203 to change the potential safety hazard that the time difference causes.Meanwhile, light source, with scan mode Emission Lasers, without adopting excessive radiator structure, has greatly dwindled the volume of product, and has improved the utilization factor of light, guarantees that displaying contents is also high-visible under strong daylight, is beneficial to wide popularization and application.
Particularly, shown in Fig. 3 and Fig. 4, above-mentioned leaded light component comprises and is arranged at the light guide in light source exit and is arranged at the multipair reflecting component in inner chamber.Preferably, this light guide is irregular toroidal lens 402.Direction along a side relative with described opening on described housing towards described opening, the namely horizontal direction shown in Fig. 3, between each reflecting component, interval is arranged.As shown in Figure 4, laser is travelled to and fro between in reflecting component, and by the right-hand member of housing towards opening direction, thereby laser forms multistage light path through each reflecting component successively, these light paths are followed successively by first paragraph light path L1, second segment light path L2, the 3rd section of light path L3, the 4th section of light path L4, the like to N section light path Ln.So, distance P=L1+L2+L3+L4 of the mapping image A that human eye is seen.。。。Ln+Z (eyes 203 arrive mirror surface apart from Z).Also the repeatedly radiation that has just realized laser forms multistage light path, designs the length value needing in the finite space.Can easily the data of extraneous scene and HUD demonstration be merged.Really realize delay that eyes 203 produce without adjusting focal length with uncomfortable, greatly reduce eyes 203 and change the potential safety hazard that the time difference causes.
Particularly, in the present embodiment, upper reflecting component and lower reflecting component have five pairs, and so, the laser being penetrated by micro laser projector 401 is travelled to and fro between between upper reflecting component and lower reflecting component successively, simple and compact for structure.Certainly, according to actual projection needs, the quantity of reflecting component and lower reflecting component is rationally set, as arrange 7 pairs, 10 pairs etc., or adjust the distance between upper reflecting component and lower reflecting component, extend optical path length, thereby really realize the far away burnt imaging of HUD, the Image Adjusting that HUD is projected is in vehicle front position far away arbitrarily.
As shown in Figure 3, arbitrary reflecting component includes by the upper reflecting component being oppositely arranged and lower reflecting component, and wherein, 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 the bottom of inner chamber.The laser vertical that light source sends is invested light guide, laser vertical is through the oblique reflecting component that is projeced into of light guide, reflex on lower reflecting component, again reflex to opening via lower reflecting component, as shown in Figure 4, laser, through opening directive windshield 202, shows that by the refraction of windshield 202 image is in the distant place, front of automobile.So, can guarantee that laser turns back between upper reflecting component and lower reflecting component, be convenient to regulate laser to travel to and fro between angle and the optical path length in described leaded light component, and guaranteed that laser has a metastable light path, simple and compact for structure, stability is high.
Understandable; adjusting light source that as required also can be suitable is fixed on the position of inner chamber; as light source being fixed on to the right-hand member of inner chamber body; opening is arranged at the top of inner chamber body; as long as the laser that sends of light source can extend the length of light path after by leaded light component, all within protection scope of the present invention.
Particularly, lower reflecting component is obliquely installed respectively in inner chamber, and it is capable that multiple upper reflecting components form upper reflecting component, and it is capable that multiple lower reflecting assemblies form a lower reflecting component, the capable setting that is staggered of the capable and described lower reflecting component of described upper reflecting component.Namely go up the each upper reflecting component of the capable and lower reflecting component of reflecting component in capable and the equal in the vertical direction of the each lower reflecting component distance that staggers, so, in same reflecting component, the upper center of reflecting component and the line of centres of lower reflecting component become to be obliquely installed, and in adjacent two reflecting components, the line of centres of upper reflecting component and lower reflecting component be arranged in parallel.Like this, just can guarantee the reliability of the transmission of laser in leaded light component, and the more concrete angle of inclination that need to go back capable of regulating reflecting component, and distance between upper reflecting component and lower reflecting component, and then the optical path length of change Laser Transmission, change the position that image is shown in vehicle front, range of adjustment is wide, and suitability is good.
Further, upper reflecting component and lower reflecting component are all connected with and can drive it to rotate the governor motion (not shown) that changes light path with adjusting angle.Pass through governor motion, angle when distance in fine setting between reflecting component and lower reflecting component and laser projection, thereby focus, change the display position of image, image and extraneous scene are merged, really realize delay that eyes 203 produce without adjusting focal length with uncomfortable, greatly reduce eyes 203 and change the potential safety hazard that the time difference causes.So, debugging is convenient, and practicality is good.
Preferably, described light source is micro laser projector 401.Adopt laser as light source, with the imaging of laser projection mode, by signal controlling tricolor laser scan image.Its color domain coverage ratio in theory can be up to the more than 90% of human eye gamut range.This has improved a class than 62% the highest color domain coverage ratio of current LED TV.The raising of color domain coverage ratio, not only can make whole picture seem more true, the sense that has levels, penetrating sensation, and the while sharpness of picture also can be along with the raising of color saturation has lifting by a relatively large margin.Due to the backlight that adopts laser to show as image, that so can make is thinner, is easy to realize the miniaturization of products.The sense of discomfort that the iridescent of having avoided fluorescent powder to produce causes human eye, and human eye is not had to radiation, more safe and reliable.
In the present embodiment, micro laser projector 401 is directly to scan or the mode of spot scan, ray laser light beam is projected on windshield 202 after expanding shaping device through special again, the real image of projection scanning is projected on windshield 202, by the printing opacity ratio of windshield 202, thereby demonstrate the image of high-res.
Preferably, in the present embodiment, upper reflecting component is plane mirror 403.Wherein the lower reflecting component of contiguous described opening is curved reflector 404, and other lower reflecting components are plane mirror 403.Certainly, also upper reflecting component and lower reflecting component can be selected to the optical device into other as required, can realize the laser optical path that shows image, be also feasible.
In addition, be packaged with an optical device 406 in opening part, preferably, optical device 406 is hyaline membrane or transparent sheet, and its surface has radian.So, can guarantee good light transmission,, the inner chamber of housing can be sealed again meanwhile, thereby the each device in protection inner chamber is not contaminated, uses more reliable and more stable.Particularly, the surface of this optical device 406 is outside outstanding cambered surface, so, is convenient to install setting.
It should be noted that, the above mentioned orientation such as left end, bottom, is all the signal explanation for ease of understanding, and is not limited to this.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an automobile head-up display device, it is characterized in that, it comprises that inside has the housing of inner chamber, one side of described housing has the opening that is communicated with described inner chamber, in described inner chamber, be provided with the light source with scan mode Emission Lasers, and described laser is carried out to back reflective to form multistage round light path and to be projected to windshield and to show the leaded light component of image in vehicle front via described opening.
2. a kind of automobile head-up display device according to claim 1, it is characterized in that: described leaded light component comprises the light guide that is arranged at described light source exit, and be arranged at the multipair reflecting component in described inner chamber, bearing of trend along described housing one side to opposite side, multipair described reflecting component interval is arranged.
3. a kind of automobile head-up display device according to claim 2, it is characterized in that: arbitrary described reflecting component comprises the upper reflecting component and the lower reflecting component that are oppositely arranged, described upper reflecting component is located at described inner cavity top, and described lower reflecting component is placed in the bottom of described inner chamber.
4. a kind of automobile head-up display device according to claim 3, it is characterized in that: described lower reflecting component is obliquely installed respectively in described inner chamber, it is capable that multiple described upper reflecting components form upper reflecting component, it is capable that multiple described lower reflecting assemblies form a lower reflecting component, the capable setting that is staggered of the capable and described lower reflecting component of described upper reflecting component.
5. according to a kind of automobile head-up display device described in claim 3 or 4, it is characterized in that: the described lower reflecting component of contiguous described opening part is curved reflector.
6. according to a kind of automobile head-up display device described in claim 3 or 4, it is characterized in that: described upper reflecting component is plane mirror.
7. according to a kind of automobile head-up display device described in claim 3 or 4, it is characterized in that: described upper reflecting component and described lower reflecting component are all connected with and can drive it to rotate the governor motion that changes light path with adjusting angle.
8. according to a kind of automobile head-up display device described in any one in claim 1-4, it is characterized in that: described opening part is covered with can be by the optical device of described inner chamber sealing, and the surface of described optical device is cambered surface.
9. according to a kind of automobile head-up display device described in any one in claim 1-4, it is characterized in that: described light source is micro laser projector.
10. according to a kind of automobile head-up display device described in any one in claim 1-4, it is characterized in that: described light guide is irregular toroidal lens.
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| CN103995420A (en) * | 2014-05-29 | 2014-08-20 | 深圳市矽韦氏科技有限公司 | Optical imaging system and projection imaging system with same |
| 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 |
| CN105445936A (en) * | 2014-09-23 | 2016-03-30 | 矽创电子股份有限公司 | Optical imaging device |
| CN105572878A (en) * | 2016-02-03 | 2016-05-11 | 重庆矢崎仪表有限公司 | Display device for vehicle |
| CN105607258A (en) * | 2016-02-03 | 2016-05-25 | 重庆矢崎仪表有限公司 | Light-angle-adjustable vehicle display device |
| CN105842971A (en) * | 2016-05-27 | 2016-08-10 | 华为技术有限公司 | Projection device 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 |
| CN109709675A (en) * | 2019-02-26 | 2019-05-03 | 京东方科技集团股份有限公司 | Augmented reality shows equipment and augmented reality glasses |
| CN112236708A (en) * | 2018-06-15 | 2021-01-15 | 大陆汽车有限责任公司 | Optical waveguide for display device |
| 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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| 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 |
| CN112236708A (en) * | 2018-06-15 | 2021-01-15 | 大陆汽车有限责任公司 | Optical waveguide for display device |
| CN109709675A (en) * | 2019-02-26 | 2019-05-03 | 京东方科技集团股份有限公司 | Augmented reality shows equipment 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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