CN209028333U - A kind of backing structure of head-up display - Google Patents
A kind of backing structure of head-up display Download PDFInfo
- Publication number
- CN209028333U CN209028333U CN201822209017.4U CN201822209017U CN209028333U CN 209028333 U CN209028333 U CN 209028333U CN 201822209017 U CN201822209017 U CN 201822209017U CN 209028333 U CN209028333 U CN 209028333U
- Authority
- CN
- China
- Prior art keywords
- lens
- light
- matrix
- head
- total reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Planar Illumination Modules (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
A kind of backing structure of head-up display, the light that light source issues enters matrix lens through total reflection lens with directional light and forms several point light sources, then by curved reflector, enter diffuser plate formation backlight effect after being laminated to convex lens shaping, to form high brightness, the light effects of high homogeneity, both the brightness of light source can be effectively reduced, and then reduce energy consumption, the visuality of head-up display can also be increased, to improve the observing effect of user, and simultaneously, again since curved reflector had both had the characteristic of convex lens optically focused or diverging light, also have the function of that plane mirror bends optical path, to make optical path bend, to compress backing structure volume, also reduce the volume of equipment.
Description
Technical field
The utility model relates to display backlight systems, more particularly to a kind of backing structure of head-up display.
Background technique
Head-up display, also known as head up display refer to primary flight instruments attitude director indicator and main flight
Parameter projects to a kind of display equipment before the helmet of driver or on windshield, is widely used in military project, aircraft or automobile
Field.And backlight is a kind of type of lighting for being usually used in LCD and showing, to increase the brightness on display screen.
The back lighting device of existing head-up display is generally more multiple from side or the light of straight irradiation behind, structure
It is miscellaneous, energy consumption is high, and brightness and light uniformity are difficult to reach desirable, and the size of device is larger, be not easy to aircraft or
Layout and installation on automobile.
Summary of the invention
The utility model lies in that providing the backlight of a kind of low-power consumption, high brightness and the better head-up display of light homogeneity
Structure to improve the observing effect of head-up display, and reduces equipment volume.
The backing structure of head-up display described in the utility model, including it is light source, total reflection lens, matrix lens, anti-
Penetrate curved reflector, convex lens and the diffuser plate that face is curved surface；The light source is set to the focal point of total reflection lens, matrix
Lens, curved reflector and convex lens are set to the other side of total reflection lens, and total reflection lens lead the light that light source issues
To matrix lens, the light that matrix lens project is reflected into convex lens by curved reflector, and diffuser plate is set to the another of convex lens
Side and the light for receiving convex lens injection；The matrix lens, towards the two sides of total reflection lens and curved reflector on
Several guide-lighting curved surfaces are equipped with, all leaded light curved surfaces are distributed along matrix.
The backing structure of head-up display described in the utility model, light source are set to the focal point of total reflection lens, light
The diverging light that source issues is projected by the effect of total reflection lens from the other side with approaching directional light, and then directional light enters matrix
Lens, matrix lens are the lens that the plane of incidence and exit facet are provided with multiple guide-lighting curved surfaces along matrix distribution, pass through two
Incident directional light is split into many point light sources and continues to propagate to curved reflector by the effect of side leaded light curved surface, and camber reflection
The reflecting surface of mirror is curved surface, is reflexed to the light issued after point light source is split by matrix lens at convex lens, and these
If the light of reflection will generate the stacking of dry weight between each other, the light after reflection, stacking is formed after the shaping of convex lens
Uniform area source with special angle and high brightness, area source form the backlight effect of head-up display by diffuser plate
Fruit, and substantially increase the homogeneity and visuality of backlight.The backing structure of the head-up display is by multiple lens and instead
The effect for penetrating mirror forms the light effects of high brightness, high homogeneity, the brightness of light source both can be effectively reduced, and then reduce energy
Consumption, can also increase the visuality of head-up display, so that the observing effect of user is improved, and simultaneously, and since curved surface is anti-
Penetrating mirror both has the characteristic of convex lens optically focused or diverging light, it may have plane mirror makes the function that optical path is bent, to make
Optical path is bent, and to compress backing structure volume, also reduces the volume of equipment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the backing structure of head-up display.
Specific embodiment
As shown in Figure 1, a kind of backing structure of head-up display, including it is light source 1, total reflection lens 2, matrix lens 3, anti-
Penetrate curved reflector 4, convex lens 5 and the diffuser plate 6 that face is curved surface；The light source is set to the focal point of total reflection lens,
Matrix lens, curved reflector and convex lens are set to the other side of total reflection lens, the light that total reflection lens issue light source
Line is oriented to matrix lens, and the light that matrix lens project is reflected into convex lens by curved reflector, and diffuser plate is set to convex lens
The other side and the light for receiving convex lens injection；The matrix lens, towards the two sides of total reflection lens and curved reflector
Several guide-lighting curved surfaces are equipped on face, all leaded light curved surfaces are distributed along matrix.
The light source is set to the focal point of total reflection lens, the effect that the diverging light that light source issues passes through total reflection lens
It is projected from the other side to approach directional light, then directional light enters matrix lens, and matrix lens are that the plane of incidence and exit facet are all provided with
The lens of multiple guide-lighting curved surfaces along matrix distribution are equipped with, by the effect of two sides leaded light curved surface by incident parallel photo-fission
Continue to propagate to curved reflector at many point light sources, and the reflecting surface of curved reflector is curved surface, will split into point light source
The light issued afterwards reflexes at convex lens, and if these reflection light between each other will generate dry weight stacking, reflection, layer
The light of poststack forms the uniform area source with special angle and high brightness, area source warp after the shaping of convex lens
It crosses diffuser plate and forms the backlight effect of head-up display, and substantially increase the homogeneity and visuality of backlight.
The backing structure of the head-up display, matrix lens 3 towards total reflection lens 2 and curved reflector 4 two
There are several small convex lenses on side with matrix distributing installation, the light guiding surface of small convex lens is guide-lighting curved surface；Small convex lens
Radius of curvature be R, focal length f, refractive index n, then the correlation between them are as follows:
。
In addition, the curvature C of the surface of emission of curved reflector 4 are as follows:
,
Wherein, D is the maximum width of 6 back lighting of diffuser plate, and α is the maximum angle of emergence of the light after matrix lens 3
Degree.
The backing structure being experimentally confirmed under this kind of structure can be further improved light luminance and homogeneity, to obtain
Optimal light effects.
Claims (4)
1. a kind of backing structure of head-up display, it is characterised in that: including light source (1), total reflection lens (2), matrix lens
(3), reflecting surface is curved reflector (4), convex lens (5) and the diffuser plate (6) of curved surface；It is saturating that the light source is set to total reflection
The focal point of mirror, matrix lens, curved reflector and convex lens are set to the other side of total reflection lens, and total reflection lens are by light
The light that source issues is oriented to matrix lens, and the light that matrix lens project is reflected into convex lens, diffuser plate setting by curved reflector
In convex lens the other side and receive convex lens injection light；The matrix lens, it is anti-towards total reflection lens and curved surface
It penetrates on the two sides of mirror and is equipped with several guide-lighting curved surfaces, all leaded light curved surfaces are distributed along matrix.
2. the backing structure of head-up display according to claim 1, it is characterised in that: matrix lens (3) direction is all-trans
Penetrating on the two sides of lens (2) and curved reflector (4) has several small convex lenses with matrix distributing installation, small convex lens
Light guiding surface is guide-lighting curved surface.
3. the backing structure of head-up display according to claim 2, it is characterised in that: the radius of curvature of small convex lens is
R, focal length be f, refractive index n, then the correlation between them are as follows:。
4. the backing structure of head-up display according to claim 1,2 or 3, it is characterised in that: curved reflector (4)
The curvature C of the surface of emission are as follows:, wherein D is the maximum width of diffuser plate (6) back lighting, and α is that light passes through matrix
Maximum shooting angle after lens (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822209017.4U CN209028333U (en) | 2018-12-27 | 2018-12-27 | A kind of backing structure of head-up display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822209017.4U CN209028333U (en) | 2018-12-27 | 2018-12-27 | A kind of backing structure of head-up display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209028333U true CN209028333U (en) | 2019-06-25 |
Family
ID=66911275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822209017.4U Active CN209028333U (en) | 2018-12-27 | 2018-12-27 | A kind of backing structure of head-up display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209028333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578593A (en) * | 2019-09-30 | 2021-03-30 | 宁波舜宇车载光学技术有限公司 | Illumination device, display, and illumination method |
-
2018
- 2018-12-27 CN CN201822209017.4U patent/CN209028333U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578593A (en) * | 2019-09-30 | 2021-03-30 | 宁波舜宇车载光学技术有限公司 | Illumination device, display, and illumination method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9329328B2 (en) | Light guide plate and backlight module using the same | |
| CN103562618B (en) | Back lighting device and liquid crystal indicator | |
| EP2788809B1 (en) | Compact illumination module for head mounted display | |
| CN103765294B (en) | Lightweight eyepiece for head mounted display | |
| CN101460876B (en) | Display apparatus with optical cavities | |
| CN108469642B (en) | Prism film, backlight module and display device | |
| US8511881B2 (en) | Light guide plate and backlight module having high light utilization efficiency by reducing light loss | |
| TWI615659B (en) | Prism sheet and light source module using the same | |
| CN106104316A (en) | Planar light source device and display device | |
| US11571952B2 (en) | Head up display device and image display apparatus therefor | |
| WO2017094209A1 (en) | Image display device and headup display equipped with image display device | |
| JPH04221236A (en) | Large-area thin type uniform lighting device particularly proper for automobile | |
| CN110161758A (en) | Light transformational structure, backlight module and virtual reality display device | |
| WO2020192300A1 (en) | Optical collimating assembly, backlight module, and display device | |
| ITTO940773A1 (en) | LIGHT GUIDE LIGHTING SYSTEM SUITABLE TO REALIZE A THIN LIGHTING DEVICE | |
| US20140085924A1 (en) | Edge-lit light panel | |
| CN111948817A (en) | Display device, head-up display and motor vehicle | |
| TWM538172U (en) | Light source module | |
| US20140241007A1 (en) | Reflector, light source module, and display device | |
| CN209028333U (en) | A kind of backing structure of head-up display | |
| TWI378299B (en) | Light module with high collimation emitting property | |
| CN105676340B (en) | Polarization multiplexing light guide structure of composite parabolic reflection micro-collimating lens and implementation method thereof | |
| US20210088711A1 (en) | Wedge lightguide | |
| CN104061533A (en) | Light conduction device, backlight module and display device | |
| KR100977941B1 (en) | Light deflector and light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |