CN104554004B - A kind of new line digital display system - Google Patents
A kind of new line digital display system Download PDFInfo
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- CN104554004B CN104554004B CN201310501328.7A CN201310501328A CN104554004B CN 104554004 B CN104554004 B CN 104554004B CN 201310501328 A CN201310501328 A CN 201310501328A CN 104554004 B CN104554004 B CN 104554004B
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- concave mirror
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- digital display
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Instrument Panels (AREA)
Abstract
It is to solve existing new line digital display system directly on front windshield or diffusion imaging unit into real image, human pilot needs to toggle eyeball focal length to observe the information on road conditions and front windshield or diffusion imaging unit, cause to increase the problem of human pilot visual fatigue degree, the embodiment of the invention provides a kind of new line digital display system.It is installed on fascia, including housing, micro projector and concave mirror；Micro projector and concave mirror are installed in housing, focal length of the light path between micro projector and concave mirror less than the concave mirror；And projection outlet is provided with housing, the light after concave mirror is exported through the projection and projected.Toggling for eyeball focal length in driving procedure is avoided, the purpose of safe driving is reached.Image can be shown more information of vehicles so that new line digital display system content is more rich, with better function after amplifying on head-up-display system.And structure is relatively easy, it is easy to accomplish.
Description
Technical field
The present invention relates to automotive field, especially install and the new line digital display system on fascia.
Background technology
It is well known that being typically provided various combination instruments or many matchmakers for convenience of control of the driver and crew to vehicle on automobile
Body, this causes that driver sees combination instrument and multimedia to obtain information of vehicles needing to bow on the run, and this is of short duration
Often bring unnecessary risk to driving in a flash.
To solve the risk, people are used in the new line digital display system on aircraft（English full name：Heads Up
Display, abbreviation HUD）It is transplanted on vehicle, is a set of intelligentized head-up display system.
Existing new line digital display system is generally following scheme, including an image generation device and a diffusion imaging list
Unit, image generation device is installed on instrument board, is used to produce the visible ray of signal of video signal, and diffusion imaging unit may be used to receive
Visible ray from image generation device, to form entity image on diffusion imaging unit.This mode is due to diffusion imaging
The range of scatter of unit is limited, and a larger diffusion imaging unit is needed if obtaining a larger image, and this will
The field range of driver can largely be blocked.In addition, the program generally uses LCD screen as real image carrier, due to point
Battle array screen or tip of the brushstyle of a writing or painting screen limited brightness, this can cause institute into image show unintelligible under outside high light the problems such as, meanwhile, drive
Member is in driving procedure there is still a need for toggling eyeball focal length to observe the information in road conditions and diffusion imaging unit.
In addition, as another alternative, also having and the visible ray of image generation device being directly directly incident upon into front
On wind glass, the mode of front windshield reflected image.Because program solid images direct imaging is on front windshield, institute
Need also exist for toggling eyeball focal length in driving procedure to observe the information in road conditions and front windshield with driver, this
The visual fatigue degree of human pilot will be largely increased, unnecessary risk is brought to safe driving.
The content of the invention
To solve existing new line digital display system directly on front windshield or diffusion imaging unit into real image, drive
The personnel of sailing need to toggle eyeball focal length to observe the information on road conditions and front windshield or diffusion imaging unit, cause to increase
The big problem of human pilot visual fatigue degree, the embodiment of the invention provides a kind of new line digital display system.
New line digital display system provided in an embodiment of the present invention, it is installed on fascia, including housing, miniature
Projecting apparatus and concave mirror；
The micro projector and the concave mirror are installed in the housing, the micro projector and the concave mirror
Between light path less than the concave mirror focal length；And projection outlet, the light after concave mirror are provided with the housing
Exported through the projection and projected.
Due to the new line digital display system that the embodiment of the present invention is used, using micro projector and the combination side of concave mirror
Formula, micro projector is placed in the focal length of concave mirror, the real image for so being projected from micro projector, can by concave mirror
To obtain amplification, a remote virtual image, then projected image onto in driver's seat by front windshield, so driven
Member just can see a picture rich in detail in vehicle front larger distance, so as to eyeball focal length is back and forth in avoiding driving procedure
Switching, reaches the purpose of safe driving.In addition, image is after amplifying, can be by more information of vehicles in the display system that comes back
Shown on system so that new line digital display system content is more rich, with better function.And structure is relatively easy, it is easy to real
Apply.
Preferably, also including a fly's-eye lens, the fly's-eye lens is installed between the micro projector and concave mirror
Light path on, and light path between the fly's-eye lens and the concave mirror is less than the focal length of the concave mirror.Using the compound eye
Lens so that the image quality for casting out is apparent.
Preferably, in the light path between the fly's-eye lens and concave mirror, it is provided with the first reflecting part.Using this first
Reflecting part, can change light transmission direction so that in effective space, can as needed extend fly's-eye lens and concave mirror
Between light path.
Preferably, a transparent sealing sheet material is provided with the projection exit, the projection is exported closed, prevent ash
Dirt enters in housing.On the one hand its translucency is ensured using the transparent sealing sheet material, the isolation external world is on the other hand played, ash is prevented
The effect that dirt enters.
Preferably, it is provided with the second reflecting part in the light path between the fly's-eye lens and micro projector.Equally, should
Second reflecting part is also dependent on needs, the light path reasonably extended between its fly's-eye lens and micro projector, it is ensured that compound eye
Lens energy blur-free imaging.
Preferably, also including a highly reflecting films, the highly reflecting films are attached to front windshield inner surface of automobile, are used to reflect
From the light that the projection outlet is projected.Due to the most smooth line reflection of display instrument that with the highly reflecting films, will can come back, keep away
Exempt from image light excessively to lose, its virtual image formed by reflection light reverse extending becomes apparent from, while also avoiding in front windshield glass
Ghost image is formed on glass.
Preferably, the radius of the lenslet on the fly's-eye lens is 0.01-0.05mm.Using the radius of lenslet at this
Fly's-eye lens in number range, its imaging definition is higher.
Preferably, the micro projector, fly's-eye lens, the first reflecting part, concave mirror etc. are mounted in housing, are in
Integrative-structure；The integrative-structure is installed in the pockets on fascia.Using the scheme of this kind of integrative-structure, its
Install, safeguard and more facilitate.
Preferably, the transparent sealing sheet material is the arc shape of indent, and its thickness is 0.3-0.5mm.Because its is transparent
Seal stock is arc shape, is thus advantageous to increase structural strength, while also being capable of reflecting part extraneous light, and slide
The thickness of material is very small, can be prevented effectively from and occur ghost image on seal stock.
Brief description of the drawings
The new line digital display system module diagram that Fig. 1 is provided for the specific embodiment of the invention；
Fig. 2 be the specific embodiment of the invention in provide concave mirror into amplify virtual image principle schematic.
Wherein, 1, housing；2nd, micro projector；3rd, fly's-eye lens；4th, the first reflecting part；5th, concave mirror；6th, it is transparent close
Mounting material；7th, front windshield；8th, projection outlet.
Specific embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment
As shown in figure 1, this example will be specifically described to new line digital display system, it is installed on fascia,
Including housing 1, micro projector 2 and concave mirror 5；
The micro projector 2 and the concave mirror 5 are installed in the housing 1, and the micro projector 2 is recessed with described
Focal length of the light path less than the concave mirror 5 between face mirror 5；And projection outlet 8 is provided with the housing 1, concave mirror 5 reflects
Light afterwards is projected through projection outlet 8.
New line digital display system described in this example is arranged under instrument desk, and top is equal with instrument table top；Its emergent light
Line directive front windshield 7.Projected image onto in driver's seat by front windshield 7 again.
Micro projector 2 is known to those skilled in the art, and there is RGB inside（Red, green, blue）Three light sources, by DMD
（English full name：Digital Micro mirror Device, Chinese full name：Digital micromirror elements）Control emergent light, then pass through
Lens amplify.DMD device is made up of many small reflex reflector lens, and each eyeglass is equivalent to a pixel, and these are small
Reflex reflector lens all left floating and can incline 10-12 ° or so to both sides, so as to may make up unblank and disconnect two kinds of working conditions.For
The different brightness of acquisition, its unblank and the speed for disconnecting can also change, handy thousands of reflex reflector lens during work, and
By DLP（English full name：Digital Light Procession, Chinese full name：Digital light treatment）Plate is controlled.DLP board
First then signal of video signal projects light through DMD again by digital processing.By the angle for controlling each small reflective mirror
It is stain or bright spot to control relevant position point, then the picture of various colors is obtained by the superposition of RGB color.Adopted in this example
The size of micro projector 2 is very small, such as it is 48*42*10mm or so that can use size.It is bright due to micro projector 2
Degree determines the definition of final projected image, and image, miniature throwing are clearly apparent in order to be able to make driver be remained under strong daylight
The luminous intensity of shadow instrument 2 should try one's best greatly, can be adjusted through experiment, it is ensured that it can also can be clearly seen that figure under strong daylight
Picture, finds through experiment, it is proposed that its illumination is more than 80lux（Lux）.
Concave mirror 5 is one of important component in whole system, can be amplified image by concave mirror 5, and will can be schemed
The imaging of picture（The virtual image）Distance expands, if the radius of concave mirror 5 is R, its material selection PC（Makrolon）/ABS（Acrylonitrile-
SB）To reach required intensity, PC/ABS is that makrolon and acrylonitrile-butadiene-styrene (ABS) are common
Polymers and mixture, it combines two kinds of excellent specific properties of material, the mouldability of ABS material and the mechanicalness of PC, impact strength
With heatproof, uvioresistant（UV）Etc. property.The inner concave of concave mirror 5 as light reflecting surface, with respect to the arcuate surface table of inner concave
Metallic is electroplated in face, improves the reflectivity of minute surface.
The image that will be projected in projecting apparatus is needed in this example（Or image）Enhanced processing, therefore, according to optical imagery
Principle is, it is necessary to thing is placed in the focal length of concave mirror 5.Its concrete principle is participated in 5 one-tenth amplification virtual image principles of concave mirror shown in Fig. 2 and is shown
It is intended to.AB is real image in Fig. 2, and it is V, the incident ray that A points send, by the recessed of concave mirror 5 that the distance between it is with concave mirror 5
After the reflection of face, the reverse extending line intersection point A ' of its reflection light is A points in virtual image point formed by concave mirror 5.What B points sent enters
Light is penetrated, after the concave reflection of concave mirror 5, the extended line of its reflection light forms virtual image point B ', the image being made up of A ' B '
As AB formed virtual images on concave mirror 5.Virtual image A ' B ' are U apart from the horizontal range of concave mirror 5；As seen from Figure 2, should
The virtual image has been exaggerated, and is the upright virtual image, and image-forming range is increased at double.
Concave mirror 5 is also required to certain condition in the upright virtual image amplified, when thing is within focus, into upright amplification
The virtual image, general focal length behind the center of circle in face of concave mirror 5, but not at R/2, if incident ray is paraxial rays, can be approximate
Think focal length at R/2.It is therefore desirable to the distance between thing and concave mirror 5 are less than R/2.
Due to the new line digital display system that this example is used, using micro projector 2 and the combination of concave mirror 5, will
Micro projector 2 is placed in the focal length of concave mirror 5, the real image for so being projected from micro projector 2, can by concave mirror 5
To obtain amplification, a remote virtual image, then projected image onto in driver's seat by front windshield 7, so driven
The person of sailing just can see a picture rich in detail in vehicle front larger distance, so as to avoid coming for eyeball focal length in driving procedure
Switchback is changed, and reaches the purpose of safe driving.In addition, image is after amplifying, can be by more information of vehicles in the display that comes back
Shown in system so that new line digital display system content is more rich, with better function.And structure is relatively easy, it is easy to
Implement.
Used as preferred embodiment, as shown in fig. 1, also including a fly's-eye lens 3, the fly's-eye lens 3 is installed in
In light path between the micro projector 2 and concave mirror 5, and light path between the fly's-eye lens 3 and the concave mirror 5 is small
In the focal length of the concave mirror 5.I.e. fly's-eye lens 3 is arranged on the projection front of micro projector 2, using the fly's-eye lens 3,
So that the image quality for casting out is apparent.Fly's-eye lens 3 is known to those skilled in the art, and it is by some lenslets
The lens formed after array arrangement, micro projector 2 and fly's-eye lens 3 as an integral installation inside housing 1, it
Effect is that meter information and navigation information etc. are shown as into image, i.e. fly's-eye lens 3 on fly's-eye lens 3 is glimmering equivalent to one
Curtain, at the same also need to by institute into image light output as much as possible, its transmitance be more than 88%.The material of its fly's-eye lens
Material typically uses PC（Makrolon）.The radius r of the lenslet on the fly's-eye lens 3 is 0.01-0.05mm.Such as this example takes
Its radius r=0.015mm.Using fly's-eye lens 3 of the radius of lenslet in the number range, its imaging definition is higher.It is fixed
Adopted fly's-eye lens 3 to the light path between concave mirror 5 is L, to make concave mirror 5 in the virtual image of upright amplification, then require saturating in compound eye
Light path L between mirror 3 and concave mirror 5 should be less than the focal length of the concave mirror 5, i.e., the fly's-eye lens 3 falls in the focal length of concave mirror 5
It is interior.In this way, in the virtual image of upright amplification after can formed real image on fly's-eye lens 3 be reflected through concave mirror 5.
As preferred embodiment, in the light path between the fly's-eye lens 3 and concave mirror 5, first is provided with reflective
Part 4.First reflecting part 4 can be plane mirror or reflecting prism.One piece or many is could be arranged to as needed
Block.As shown in fig. 1, the first reflecting part 4 is arranged on the front of projection ray, the angle at an angle with fly's-eye lens 3
Depending on the shooting angle of the glazed thread of concave mirror 5.Concave mirror 5 is installed on 4 directions of reflection light of the first reflecting part, with
Horizontal plane is angled, so that its emergent ray can be projected effectively on front windshield 7, then will by front windshield 7
Image projection is in driver's seat.The Main Function of first reflecting part 4 is to change light transmission direction, and can be limited
Spatial dimension in increase the light path L of fly's-eye lens 3 to light transmission between concave mirror 5, light path L is defined as, such as
Shown in Fig. 1, it is a to define the light path between the reflecting part of fly's-eye lens 3 to the first 4, defines the first reflecting part 4 to concave mirror
Light path between 5 is b, then the fly's-eye lens 3 is to the light path L=a+b between concave mirror 5, and the surface of the first reflecting part 4 is anti-
Rate is penetrated preferably more than 95%, it is to avoid lost in light reflection process.Light after the concave mirror 5 reflection is through the projection on housing 1
Outlet 8 is projected.Using first reflecting part 4, light transmission direction can be changed so that in effective space, can be according to need
The light path L extended between fly's-eye lens 3 and concave mirror 5.
Meanwhile, as shown in figure 1, being provided with a transparent sealing sheet material 6 at the projection outlet 8, the projection is exported 8
It is closed, prevent dust from entering in housing 1.The role of the transparent sealing sheet material 6 is to separate built-in system with external environment condition,
Internal optics are avoided to be contaminated, because seal stock is insulating effect, it requires the translucency of sheet material will get well, and have
The characteristics such as certain intensity, toughness and high temperature resistant.Its translucency is ensured using the one side of transparent sealing sheet material 6, on the other hand
Play the effect that isolation is extraneous, prevents dust from entering.Preferably, the transparent sealing sheet material 6 is the arc shape of indent, and it is thick
It is 0.3-0.5mm to spend.Because its transparent sealing sheet material 6 is arc shape, it is thus advantageous to increase structural strength, while also can
Reflecting part extraneous light, and the thickness of clear sheet is very small, can be prevented effectively from and occur ghost image on seal stock.This is transparent close
Mounting material 6 is typically made from PC materials.
As preferred embodiment, it is provided with light path that can also be between the fly's-eye lens 3 and micro projector 2
Second reflecting part.So-called second reflecting part can be for 1 or multiple, and similarly, second reflecting part can be
Plane mirror or reflecting prism.Second reflecting part also dependent on needs, reasonably extend its fly's-eye lens 3 with it is miniature
Light path between projecting apparatus 2, it is ensured that fly's-eye lens 3 can blur-free imaging.
Micro projector 2, fly's-eye lens 3, the first reflecting part 4, concave mirror 5 mentioned above etc. are mounted on housing 1
It is interior, in integrative-structure；The integrative-structure is installed in the pockets on fascia.It is general that the integrative-structure is installed
When in pockets, buckle structure is additionally provided with, both buckles are fixed.Using the scheme of this kind of integrative-structure, its installation,
Safeguard and more facilitate.
Front windshield 7 by new line display instrument projected light line reflection to driver within sweep of the eye, in order that drive
Member remains to the apparent image seen on front windshield 7 under outside high light, preferably also includes a highly reflecting films, the height
Reflectance coating is attached to the inner surface of shield glass 7, is used to reflect the light projected from the projection outlet 8.Due to this
Highly reflecting films, will can be come back the most smooth line reflection of display instrument, it is to avoid image light is excessively lost, and its reflection light is reversely prolonged
The formed virtual image long becomes apparent from, while also avoiding forming ghost image on front windshield 7.The program directly uses highly reflecting films
It is attached on front windshield 7, it is not necessary to the optical glass sheet with the angle of wedge, is easy to the installation of later product to upgrade.
Due to the scheme using this example, its program first is combined into as replacing using micro projector 2 and fly's-eye lens 3
Traditional LCD screen imaging, the heat that its micro projector 2 is distributed is much smaller than existing traditional head-up-display system, it is therefore not necessary to
Radiator structure is set, or only needs the miniature thermal component of design.Used as preferred mode, this example is preferably in housing 1
A miniature thermal component is installed, the miniature thermal component only has half of the size of micro projector 2 or so, far smaller than existing lift
The volume of radiator structure in head display instrument.
In sum, micro projector 2, fly's-eye lens 3 and the concave mirror 5 for being provided using this example are combined into the side as replacing
Case, is imaged relative to traditional LCD screen, and program image quality is high, brightness is high, caloric value is relatively small, can throw image
Shadow distance is increased, and image can also accordingly amplify, more humane compared with prior art.Eyeball is burnt during driving procedure can be avoided
Away from toggle, reach the purpose of safe driving.Image, can be by more information of vehicles in the display that comes back after amplifying
Shown in system so that new line digital display system content is more rich, with better function.And structure is relatively easy, it is easy to
Implement.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of new line digital display system, it is characterised in that it is installed on fascia, including housing, micro projection
Instrument and concave mirror；
The micro projector and the concave mirror are installed in the housing, between the micro projector and the concave mirror
Light path less than the concave mirror focal length；And projection outlet is provided with the housing, the light after concave mirror is through being somebody's turn to do
Projection outlet is projected；
Also include a fly's-eye lens, the fly's-eye lens is installed in the light path between the micro projector and the concave mirror
On, and focal length of the light path less than the concave mirror between the fly's-eye lens and the concave mirror；
In light path between the fly's-eye lens and concave mirror, the first reflecting part is provided with；
The second reflecting part is provided with light path between the fly's-eye lens and micro projector.
2. new line digital display system according to claim 1, it is characterised in that be provided with the projection exit saturating
Bright seal stock, exports closed by the projection, prevents dust from entering in housing.
3. new line digital display system according to claim 2, it is characterised in that the micro projector, fly's-eye lens,
First reflecting part and concave mirror are mounted in housing, in integrative-structure；The integrative-structure is installed on fascia
Pockets in.
4. new line digital display system according to claim 1, it is characterised in that also including a highly reflecting films, the height
Reflectance coating is attached to front windshield inner surface of automobile, to reflect the light projected from the projection outlet.
5. new line digital display system according to claim 1, it is characterised in that lenslet on the fly's-eye lens
Radius is 0.01-0.05mm.
6. new line digital display system according to claim 1, it is characterised in that miniature dissipating is also equipped with the housing
Thermal part.
7. new line digital display system according to claim 2, it is characterised in that the transparent sealing sheet material is indent
Arc shape, its thickness is 0.3-0.5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310501328.7A CN104554004B (en) | 2013-10-23 | 2013-10-23 | A kind of new line digital display system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310501328.7A CN104554004B (en) | 2013-10-23 | 2013-10-23 | A kind of new line digital display system |
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| CN104554004A CN104554004A (en) | 2015-04-29 |
| CN104554004B true CN104554004B (en) | 2017-07-04 |
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| JP5464219B2 (en) * | 2012-02-03 | 2014-04-09 | 株式会社デンソー | Head-up display device for vehicle |
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2013
- 2013-10-23 CN CN201310501328.7A patent/CN104554004B/en active Active
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