CN106526858A - DLP-based vehicle-mounted head-up display optical system - Google Patents
DLP-based vehicle-mounted head-up display optical system Download PDFInfo
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- CN106526858A CN106526858A CN201611143487.4A CN201611143487A CN106526858A CN 106526858 A CN106526858 A CN 106526858A CN 201611143487 A CN201611143487 A CN 201611143487A CN 106526858 A CN106526858 A CN 106526858A
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- dlp
- projection screen
- vehicle
- combined lens
- optical system
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The invention belongs to the technical field of optical display, and provides a DLP-based vehicle-mounted head-up display optical system which comprises a DLP projection system (1), a projection screen (2) and a combined mirror (3). Images or video information is projected to the projection screen (2) via the DLP projection system (1) to form real images, which are reflected to the combined mirror (3) through the projection screen (2), and virtual images are formed in front of the combined mirror (3) which reflects the virtual images to a driver's observation position. In this way, a driver can see the vehicles and road condition information without lowering his/her head. The structure is simple, and installation is convenient. The DLP-based vehicle-mounted head-up display optical system may not affect the normal driving use of a vehicle and improves the driving safety and comfortableness.
Description
Technical field
The invention belongs to optics display technology field, there is provided a kind of vehicle-mounted HUD optical system based on DLP, the present invention can
It is applied to head-up display (Head-Up Display, HUD).
Background technology
Vehicle when running at high speed, particularly night high speed traveling when, driver may bow viewing instrument show or
Navigation etc. of viewing console shows, if now front meet emergency be possible to adopt an effective measure because having little time and
Cause the accident.Hypothesis Vehicle Speed is 120KM/H, even if the disturbed 1S of the sight line of driver, this has also implied that 33
, there is great potential safety hazard the sight line blind area of rice.And vehicle-mounted head-up-display system (HUD) can be prevented effectively from sending out for such case
It is raw.
Vehicle-mounted head-up-display system is a kind of augmented reality type car-mounted display equipment, and which is derivative from airborne HUD technology
, the situation of remote such as speed, oil consumption, engine speed and path navigation presentation of information are being driven using off-axis optical system
In the range of looking squarely in front of the person of sailing, effectively shorten blind area time of the driver to field of front vision, can be real accomplish drive
When " eye is not from road surface, hand from steering wheel ".
At present, a kind of head-up display is configured with some special vehicles and battle wagon, it can be vehicle and road
The important informations such as condition are displayed on a transparent screen, and driver need not bow, and can just see the important informations such as vehicle operation data clearly.
But there is image-forming range closely in current head-up display, human eye is in observation distant place road and nearby constantly focuses between instrument, easily
Fatigue.
The content of the invention
A kind of technical deficiency of the present invention for existing in-vehicle display system, there is provided vehicle-mounted HUD optical system based on DLP
System, can be applicable to vehicle-mounted head-up display, for showing the important informations such as vehicle operation data, simple with configuration, installation side
Just, low cost, highly versatile, the big advantage of promotion potential can alleviate people's kopiopia, improve drive safety and comfortableness.
The technical scheme is that：
A kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：From DLP projection system (1), edge
Light path sets gradually projection screen (2) and combined lens (3)；
Image or video information are projected by DLP projection system (1) and form real image on projection screen (2), then by projection
Real image is reflected or is transmitted to combined lens (3) by screen (2), and in front of combined lens (3) forms at least 4m distant places virtual image, finally by group
Close mirror (3) and the virtual image is reflexed to into driver observation place.
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：The throwing
Shadow screen (2) is reflection type projection screen；The reflective surface rate of projection screen (2) is more than 90%.
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：The throwing
Shadow screen (2) is transmission screen；The transmission plane transmitance of projection screen (2) is more than 90%；In projection screen (2) and combined lens (3)
Between set up lens (4), lens (4) are provided with bias and inclination, to increase virtual image forming distance.
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：The throwing
Shadow screen (2) is transmission screen；The transmission plane transmitance of projection screen (2) is more than 90%；In projection screen (2) and combined lens (3)
Between set up curved reflector (5), the interior reflective surface of curved reflector (5) is provided with bias and inclination, to increase virtual image forming
Distance；The dielectric reflection film or metal of the interior reflective surface plating visible ray 400nm～700nm wavelength bands of curved reflector (5) is anti-
Film is penetrated, reflectivity is more than 95%.
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：Combined lens
(3) reflecting surface plates the spectro-film of visible ray 400nm～700nm wavelength bands, and the reflection and transmission ratio of the reflecting surface is 30/
70。
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：Combined lens
(3) anti-reflection film of visible ray 400nm～700nm wavelength bands is plated at the back side, the light of each incident angle is all transmitted, thoroughly
Rate is penetrated more than 99%.
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：Combined lens
(3) reflecting surface is sphere or aspherical；The back side of combined lens (3) is sphere or aspherical, and face shape parameter should be with reflecting surface
The distortion that outdoor scene are produced is watched in matching, correction through combined lens.
Further preferred version, a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：Projection screen
(2) it is glass screen or resin screen, combined lens (3) material is colourless transparent glass or optical resin PC/PMMA.
Beneficial effect
1st, the present invention can make driver bow, and can just see the important informations such as vehicle operation data clearly, it is to avoid human eye exists
Observe distant place road and nearby constantly focus between instrument, alleviate people's kopiopia, improve drive safety；
2nd, the present invention is head-up display, more meets driver and looks squarely observation habit, with preferable ergonomic；
3rd, the present invention shown for the virtual image, virtual image forming in front of the driver at least 4m far, with eye-observation in front of road conditions away from
It is from closer, more comfortable when eye-observation outdoor scene and display information；
4th, the present invention shows that for perspective driver does not affect to observe outdoor scene when observing display information；
5th, display information of the present invention can be superimposed with outdoor scene, augmented reality, and security is good；
6th, optical system configuration of the present invention is simple, and element usage quantity is few, and design, processing, assembly difficulty are little；
7th, the present invention can eliminate the secondary picture of display, and correction outdoor scene distortion, display effect are good；
8th, the vehicle-mounted HUD system that the present invention is designed based on DLP projection system, low cost；
9th, the present invention is based on DLP projection system design, and takes into account other digital image sources such as LCD, OLED, system versatility
It is good.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
It is substantially and easy to understand, wherein：
Vehicle-mounted HUD schematic diagrames of the Fig. 1 for first embodiment of the invention.
Vehicle-mounted HUD schematic diagrames of the Fig. 2 for second embodiment of the invention.
Vehicle-mounted HUD schematic diagrames of the Fig. 3 for third embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
A kind of technical deficiency of the present invention for existing in-vehicle display system, there is provided vehicle-mounted HUD optical system based on DLP
System, can be applicable to vehicle-mounted head-up display, for showing the important informations such as vehicle operation data, simple with configuration, installation side
Just, low cost, highly versatile, the big advantage of promotion potential can alleviate people's kopiopia, improve drive safety and comfortableness.
Embodiment 1：
As shown in figure 1, a kind of vehicle-mounted HUD optical system based on DLP proposed by the present invention, from DLP projection system (1)
Set out, projection screen (2) and combined lens (3) are set gradually along light path.Image or video information are projected by DLP projection system (1)
Projection screen forms real image on (2), and real image is reflexed to combined lens (3) by projection screen (2) then, and in front of combined lens (3)
At least 4m distant places virtual image is formed, the virtual image is reflexed to into driver observation place by combined lens (3) finally, driver is not required to bow just
Can the information such as real time inspection vehicle and road conditions.
Projection screen (2) receives DLP projection system (1) picture that projects and reflexes to combined lens (3), the reflection of projection screen (2)
Face (S2a) is plane or curved surface, and reflecting surface (S2a) reflectivity of projection screen (2) is more than 90%.
The reflecting surface (S3a) of combined lens (3) plates the spectro-film of visible ray 400nm～700nm wavelength bands, the reflecting surface
(S3a) reflection and transmission ratio is (R/T) 30/70.The back side (S3b) the plating visible ray 400nm～700nm wave band models of combined lens (3)
The anti-reflection film for enclosing, all transmits to the light of each incident angle, and transmissivity is more than 99%, can eliminate display picture pair picture.
The reflecting surface (S3a) of combined lens (3) is sphere or aspherical, and the another side (S3b) of combined lens (3) is sphere or non-
Sphere, and face shape parameter should watch outdoor scene generation abnormal through surface composition mirror with reflecting surface (S3a) matched design, recoverable
Become.
Vehicle-mounted HUD optical system adapts to visible ray 400nm～700nm wave bands, can show monochrome or colour picture.
Projection screen (2) is glass screen or resin screen.
Combined lens (3) material is colourless transparent glass or optical resin PC/PMMA.
DLP projection system (1) and projection screen (2) setting in a certain angle.
Projection screen (2) and combined lens (3) setting in a certain angle.
Vehicle-mounted HUD optical system sitting type is installed on above car instrument board, and also Liftable formula is installed on roof.
Vehicle-mounted HUD optical system is filled after being suitable for independence, also front can be filled inside embedment instrument board.
The digitized map such as DLP projection system (1) and projection screen (2) part replaceable LCD, OLED in vehicle-mounted HUD optical system
Image source.
Embodiment 2：
As shown in Fig. 2 a kind of vehicle-mounted HUD optical system based on DLP proposed by the present invention, from DLP projection system (1)
Set out, projection screen (2), lens (4) and combined lens (3) are set gradually along light path.Image or video information are by DLP projection system
(1) to project and real image is formed on projection screen (2), real image is transmitted through to combined lens by lens (4) by projection screen (2) then
(3) at least 4m distant places virtual image is formed, and in front of combined lens (3), the virtual image is reflexed to into driver's observation by combined lens (3) finally
Position, driver is not required to bow just can the information such as real time inspection vehicle and road conditions.
Projection screen (2) receives DLP projection system (1) picture that projects and is transmitted through lens (4) to combined lens (3), projection
The transmission plane (S2a) of screen (2) is plane or curved surface, and transmission plane (S2a) transmitance of projection screen (2) is more than 90%.And lens (4)
Bias and inclination are provided with, system imaging quality is improved, increase virtual image forming distance.
The reflecting surface (S3a) of combined lens (3) plates the spectro-film of visible ray 400nm～700nm wavelength bands, the reflecting surface
(S3a) reflection and transmission ratio is (R/T) 30/70.The back side (S3b) the plating visible ray 400nm～700nm wave band models of combined lens (3)
The anti-reflection film for enclosing, all transmits to the light of each incident angle, and transmissivity is more than 99%, can eliminate display picture pair picture.
The reflecting surface (S3a) of combined lens (3) is sphere or aspherical, and the another side (S3b) of combined lens (3) is sphere or non-
Sphere, and face shape parameter should watch outdoor scene generation abnormal through surface composition mirror with reflecting surface (S3a) matched design, recoverable
Become.
Vehicle-mounted HUD optical system adapts to visible ray 400nm～700nm wave bands, can show monochrome or colour picture.
Projection screen (2) is glass screen or resin screen.
Combined lens (3) material is colourless transparent glass or optical resin PC/PMMA.
DLP projection system (1) and projection screen (2) setting in a certain angle.
Projection screen (2) and combined lens (3) setting in a certain angle.
Vehicle-mounted HUD optical system sitting type is installed on above car instrument board, and also Liftable formula is installed on roof.
Vehicle-mounted HUD optical system is filled after being suitable for independence, also front can be filled inside embedment instrument board.
The digitized map such as DLP projection system (1) and projection screen (2) part replaceable LCD, OLED in vehicle-mounted HUD optical system
Image source.
Embodiment 3：
As shown in figure 3, a kind of vehicle-mounted HUD optical system based on DLP proposed by the present invention, from DLP projection system (1)
Set out, projection screen (2), curved reflector (5) and combined lens (3) are set gradually along light path.Image or video information are projected by DLP
System (1) to be projected and form real image on projection screen (2), and real image is transmitted through curved reflector (5) by projection screen (2) then
Combined lens (3) are reflexed to, and at least 4m distant places virtual image is formed in front of combined lens (3), finally the virtual image is reflected by combined lens (3)
To driver observation place, driver is not required to bow just can the information such as real time inspection vehicle and road conditions.
Projection screen (2) receives DLP projection system (1) picture that projects and is transmitted through curved reflector (5) and reflexes to combination
Mirror (3), the transmission plane (S2a) of projection screen (2) is plane or curved surface, and the transmission plane transmitance of projection screen (2) is more than 90%.
The interior reflective surface (S5a) of curved reflector (5) is provided with bias and inclination, to improve system imaging quality, increase
Virtual image forming distance.The medium of interior reflective surface (S5a) the plating visible ray 400nm～700nm wavelength bands of curved reflector (5) is anti-
Film or metallic reflective coating are penetrated, reflectivity is more than 95%.
The reflecting surface (S3a) of combined lens (3) plates the spectro-film of visible ray 400nm～700nm wavelength bands, the reflecting surface
(S3a) reflection and transmission ratio is (R/T) 30/70.The back side (S3b) the plating visible ray 400nm～700nm wave band models of combined lens (3)
The anti-reflection film for enclosing, all transmits to the light of each incident angle, and transmissivity is more than 99%, can eliminate display picture pair picture.
The reflecting surface (S3a) of combined lens (3) is sphere or aspherical, and the another side (S3b) of combined lens (3) is sphere or non-
Sphere, and face shape parameter should watch outdoor scene generation abnormal through surface composition mirror with reflecting surface (S3a) matched design, recoverable
Become.
Vehicle-mounted HUD optical system adapts to visible ray 400nm～700nm wave bands, can show monochrome or colour picture.
Projection screen (2) is glass screen or resin screen.
Combined lens (3) material is colourless transparent glass or optical resin PC/PMMA.
DLP projection system (1) and projection screen (2) setting in a certain angle.
Projection screen (2) and combined lens (3) setting in a certain angle.
Vehicle-mounted HUD optical system sitting type is installed on above car instrument board, and also Liftable formula is installed on roof.
Vehicle-mounted HUD optical system is filled after being suitable for independence, also front can be filled inside embedment instrument board.
The digitized map such as DLP projection system (1) and projection screen (2) part replaceable LCD, OLED in vehicle-mounted HUD optical system
Image source.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is in the principle and objective without departing from the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (8)
1. a kind of vehicle-mounted HUD optical system based on DLP, it is characterised in that：From DLP projection system (1),
Projection screen (2) and combined lens (3) are set gradually along light path；
Image or video information are projected by DLP projection system (1) and form real image on projection screen (2), then by projection screen (2)
Real image is reflected or combined lens (3) are transmitted to, and at least 4m distant places virtual image is formed in front of combined lens (3), finally by combined lens
(3) virtual image is reflexed to into driver observation place.
2. a kind of vehicle-mounted HUD optical system based on DLP according to claim 1, it is characterised in that：The projection screen (2)
For reflection type projection screen；The reflective surface rate of projection screen (2) is more than 90%.
3. a kind of vehicle-mounted HUD optical system based on DLP according to claim 1, it is characterised in that：The projection screen (2)
For transmission screen；The transmission plane transmitance of projection screen (2) is more than 90%；Set up between projection screen (2) and combined lens (3)
Lens (4), lens (4) are provided with bias and inclination, to increase virtual image forming distance.
4. a kind of vehicle-mounted HUD optical system based on DLP according to claim 1, it is characterised in that：The projection screen (2)
For transmission screen；The transmission plane transmitance of projection screen (2) is more than 90%；Set up between projection screen (2) and combined lens (3)
Curved reflector (5), the interior reflective surface of curved reflector (5) are provided with bias and inclination, to increase virtual image forming distance；Curved surface
The dielectric reflection film or metallic reflective coating of the interior reflective surface plating visible ray 400nm～700nm wavelength bands of speculum (5), reflection
Rate is more than 95%.
5. according to a kind of arbitrary vehicle-mounted HUD optical system based on DLP of Claims 1 to 4, it is characterised in that：Combined lens
(3) reflecting surface plates the spectro-film of visible ray 400nm～700nm wavelength bands, and the reflection and transmission ratio of the reflecting surface is 30/
70。
6. a kind of vehicle-mounted HUD optical system based on DLP according to claim 5, it is characterised in that：The back of the body of combined lens (3)
The anti-reflection film of visible ray 400nm～700nm wavelength bands is plated in face, and the light of each incident angle is all transmitted, and transmissivity is big
In 99%.
7. a kind of vehicle-mounted HUD optical system based on DLP according to claim 6, it is characterised in that：Combined lens (3) it is anti-
Face is penetrated for sphere or aspherical；The back side of combined lens (3) is sphere or aspherical, and face shape parameter should be matched with reflecting surface, school
Just the distortion that outdoor scene are produced is watched through combined lens.
8. a kind of vehicle-mounted HUD optical system based on DLP according to claim 1, it is characterised in that：Projection screen (2) is glass
Glass screen or resin screen, combined lens (3) material are colourless transparent glass or optical resin PC/PMMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611143487.4A CN106526858A (en) | 2016-12-13 | 2016-12-13 | DLP-based vehicle-mounted head-up display optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611143487.4A CN106526858A (en) | 2016-12-13 | 2016-12-13 | DLP-based vehicle-mounted head-up display optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106526858A true CN106526858A (en) | 2017-03-22 |
Family
ID=58343205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611143487.4A Pending CN106526858A (en) | 2016-12-13 | 2016-12-13 | DLP-based vehicle-mounted head-up display optical system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106526858A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435665A (en) * | 2019-08-14 | 2019-11-12 | 东风汽车有限公司 | Driver detection device and car |
| CN111089708A (en) * | 2019-12-09 | 2020-05-01 | 中国航空工业集团公司洛阳电光设备研究所 | System and method for measuring error of head-up display center |
| CN112313737A (en) * | 2018-06-22 | 2021-02-02 | 三菱电机株式会社 | Image display device |
| CN113055661A (en) * | 2021-02-08 | 2021-06-29 | 束禾问 | Same-frequency imaging system and imaging method |
| CN114185173A (en) * | 2021-12-13 | 2022-03-15 | 深圳前海智云谷科技有限公司 | High-brightness high-contrast medium-free air suspension display device |
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| CN203799119U (en) * | 2014-03-26 | 2014-08-27 | 李艳龙 | Head-up display system based on laser light source |
| WO2015163270A1 (en) * | 2014-04-21 | 2015-10-29 | シャープ株式会社 | Transmission-type screen and headup display |
| WO2016014712A1 (en) * | 2014-07-22 | 2016-01-28 | Navdy, Inc. | Compact heads-up display system |
| WO2016136827A1 (en) * | 2015-02-26 | 2016-09-01 | 大日本印刷株式会社 | Transmissive screen and head-up display device using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203799119U (en) * | 2014-03-26 | 2014-08-27 | 李艳龙 | Head-up display system based on laser light source |
| WO2015163270A1 (en) * | 2014-04-21 | 2015-10-29 | シャープ株式会社 | Transmission-type screen and headup display |
| WO2016014712A1 (en) * | 2014-07-22 | 2016-01-28 | Navdy, Inc. | Compact heads-up display system |
| WO2016136827A1 (en) * | 2015-02-26 | 2016-09-01 | 大日本印刷株式会社 | Transmissive screen and head-up display device using same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112313737A (en) * | 2018-06-22 | 2021-02-02 | 三菱电机株式会社 | Image display device |
| CN110435665A (en) * | 2019-08-14 | 2019-11-12 | 东风汽车有限公司 | Driver detection device and car |
| CN111089708A (en) * | 2019-12-09 | 2020-05-01 | 中国航空工业集团公司洛阳电光设备研究所 | System and method for measuring error of head-up display center |
| CN113055661A (en) * | 2021-02-08 | 2021-06-29 | 束禾问 | Same-frequency imaging system and imaging method |
| CN114185173A (en) * | 2021-12-13 | 2022-03-15 | 深圳前海智云谷科技有限公司 | High-brightness high-contrast medium-free air suspension display device |
| CN114185173B (en) * | 2021-12-13 | 2024-02-23 | 深圳前海智云谷科技有限公司 | Medium-free air suspension display device with high brightness and high contrast |
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