CN207867138U - HUD lighting systems, head-up display device - Google Patents
HUD lighting systems, head-up display device Download PDFInfo
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- CN207867138U CN207867138U CN201721358465.XU CN201721358465U CN207867138U CN 207867138 U CN207867138 U CN 207867138U CN 201721358465 U CN201721358465 U CN 201721358465U CN 207867138 U CN207867138 U CN 207867138U
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Abstract
The utility model discloses HUD lighting systems, head-up display devices, wherein HUD lighting systems, including：Collimate equalization element and intensity distribution adjustment element, the collimation equalization element is set gradually with intensity distribution adjustment element along light source direction, the collimation equalization element includes at least an optical element, light beam is adjusted to closely to collimate uniform beam, the intensity distribution adjustment element includes at least：To reflect or reflecting element and diffused component incident beam to be scattered, the refraction or reflecting element are set gradually with the diffused component along light source direction.HUD lighting systems reduce system power dissipation, and ensure that whole head-up display device is compact-sized.
Description
Technical field
The utility model is related to optical field, field of LED illumination and the fields vehicle-mounted head-up display device (HUD), especially
It is related to HUD lighting systems, head-up display device, can be applied to the vehicle-mounted head-up display devices of automobile HUD.
Background technology
For convenience of driver in driving procedure, viewing information of vehicles, navigation information etc. usually utilize head-up display device
Image information is optically projected near pilot's line of vision by HUD, avoids viewing instrument board of bowing.Come back display dress
Middle projected image is set, (can be called in the following text in driver's eyes near zone：Eye box region) in see entire image, and image
Brightness uniformity.
HUD common in the art is formed as shown in Figure 1, including mainly：Lighting system 1 illuminates LCD 2, imaging
System 3, eye box region 4 and the projection virtual image 5.Lighting system key problem in HUD is：Uniformity, efficiency and volume, tool
For body,
1) efficiency refers to, as much as possible into pleasing to the eye box region 4 after the imaged optical system 3 of illuminating bundle reflects, and realizes
High efficiency illumination；
2) uniformity refers to the virtual image 5 watched in eye box region 4, needs to meet picture each point brightness uniformity；
3) volume refers to that head-up display device volume structure is compact.
HUD needs to realize low-power consumption, high brightness, small, compact-sized, wherein a critically important part is back lighting
System, system power dissipation can either be reduced by how providing one kind, and can ensure compact-sized lighting system, and is applied to
Being those skilled in the art in head-up display device has problem to be solved.
Utility model content
The technical problems to be solved in the utility model is how enough to reduce system power dissipation, and can ensure compact-sized
HUD lighting systems.
Above-mentioned technical problem is solved, the utility model provides a kind of HUD lighting systems, including：Collimate equalization element and
Intensity distribution adjustment element, the collimation equalization element are set gradually with intensity distribution adjustment element along light source direction,
The collimation equalization element includes at least：Two optical elements, two optical elements include：First optics
Element and the second optical element,
First optical element is set gradually with second optical element along light source direction.
The intensity distribution adjustment element includes at least：To reflect or reflecting element and to carry out incident beam
The diffused component of scattering,
The refraction or reflecting element are set gradually with the diffused component along light source direction.
Preferably, the collimation equalization element includes at least：One optical element, it is equal light source to be adjusted to closely to collimate
Even light beam.
Further, when collimation equalization element face type is rotationally symmetrical curved surface, the collimation equalization element is by light
The beam shaping that source is sent out is circular section, and light beam is uniformly distributed in section.
Further, the collimation equalization element is Fresnel Lenses.
Further, the collimation equalization element uses：The illuminating lens of array arrangement.
Further, the array arrangement is using dislocation arrangement mode.
Further, the outgoing beam section of the illuminating lens is circle.
Further, when collimation equalization element face type is the curved surface of non-rotational symmetric, the collimation equalization element will
The beam shaping that light source is sent out is square, rectangle noncircular cross section, and light beam is uniformly distributed in section.
The utility model additionally provides a kind of head-up display device, including：Lighting system, illumination LCD, image optics system,
Eye box region and the projection virtual image, the light beam of light source sent out by lighting system is successively through over-illumination LCD, image optics system to eye
Box region, lighting system are above-mentioned HUD lighting systems.
Further, the output beam in the intensity distribution adjustment element and the image optics system in the HUD
System matching setting.
Further, the light source that the lighting system uses can be LED or LD.
Further, first optical element is arranged close to the light source and second optical element is far from the light
Source is arranged.
The beneficial effects of the utility model：
HUD lighting systems in the application can match with HUD optical imaging systems, so that illuminating bundle is concentrated
In eye box region, illumination efficiency is improved.And compared to the uniform collimated illumination system of simple lens, the device in the present invention improves
Shooting angle of the light on lens is conducive to improve efficiency.
Since the collimation equalization element uses：Array arrangement is the illuminating lens of dislocation arrangement mode, illumination region
For circle, beam utilization simplifies apparatus structure after array arrangement can be improved.
Description of the drawings
Fig. 1 is HUD composition schematic diagrams in the prior art；
Fig. 2 (a) is the HUD lighting system structure schematic diagrames of the utility model；
Fig. 2 (b) is a preferred HUD lighting system structures schematic diagram of the utility model；
Fig. 3 is the light path schematic diagram for collimating homogenous cell；
Fig. 4 is the light path schematic diagram of intensity distribution adjustment unit；
Fig. 5 (a) is the structural schematic diagram of the xy axis directions of array arrangement；
Fig. 5 (b) is the structural schematic diagram of the xz axis directions of array arrangement；
Fig. 6 is the structural schematic diagram of single illuminating lens；
Fig. 7 (a) be the x of array arrangement, y-axis direction structural schematic diagram；
Fig. 7 (b) be x, z-axis direction structural schematic diagram.
Specific implementation mode
The principle of the disclosure is described referring now to some example embodiments.It is appreciated that these embodiments are merely for saying
It is bright and help it will be understood by those skilled in the art that with the purpose of the embodiment disclosure and describe, rather than suggest the model to the disclosure
Any restrictions enclosed.Content of this disclosure described here can in a manner of described below except various modes implement.
As described herein, term " comprising " and its various variants are construed as open-ended term, it means that " packet
It includes but is not limited to ".Term "based" is construed as " being based at least partially on ".Term " one embodiment " it is understood that
For " at least one embodiment ".Term " another embodiment " is construed as " at least one other embodiment ".
The HUD lighting system structure schematic diagrames of (a) the utility model are please referred to Fig.2, including：Collimate equalization element and intensity
It is distributed adjustment element, the collimation equalization element is set gradually with intensity distribution adjustment element along light source direction, and the collimation is equal
Even element includes at least：One optical element, light source to be adjusted to closely to collimate uniform beam, the intensity distribution adjustment element
It includes at least：To reflect or reflecting element and diffused component incident beam to be scattered, the refraction or anti-
Element 14 is penetrated to set gradually along light source direction with the diffused component 15.
As preferred in the present embodiment, the collimating element includes Fresnel Lenses.
As preferred in the present embodiment, the collimation equalization element can also use：Single illuminating lens.
As preferred in the present embodiment, above-mentioned collimation equalization element using array arrangement, array arrangement mode is：It is wrong
The illuminating lens of position arrangement mode.Beam utilization after raising array arrangement, array arrangement combine back lighting face uniform-illumination, adopt
With dislocation arrangement mode.
When as the curved surface that preferred in the present embodiment, above-mentioned collimation equalization element is non-rotational symmetric, the collimation
Noncircular cross sections, the light beams such as the beam shaping that light source is sent out is square by equalization element, rectangle are uniformly distributed in section.
It please refers to Fig.2 (b), it is preferable that the collimation equalization element includes at least：Two optical elements, two light
Learning element includes：First optical element 12 and the second optical element 13, first optical element 12 and second optics
13, member is set gradually along light source direction, and the intensity distribution adjustment element includes at least：To reflect or reflecting element 14 with
And the diffused component 15 incident beam to be scattered, the refraction or reflecting element 14 and the diffused component 15 are along light
Source direction is set gradually.
As shown in figure 3, from light source transmission direction, the light that light source 11 is sent out is exposed to by element 12, element 13 successively
LCD 2, light are mutually parallel as shown in 110~114, and illumination spot section is have substantially square, is uniformly distributed on LCD.Member
Part 12,13 materials are optical plastic, by injection molding, even if curved surface is complicated, remain to realize the production of rapid batch metaplasia.First light
It is respectively 121,122 to learn 12 front and rear surfaces of element, and front surface is plane in this example, and rear surface is free form surface.Second optics member
13 front and rear surfaces of part are respectively 131,132, and in this example, front surface is free form surface, and rear surface is plane, can also be by front surface
It is adjusted to plane, rear surface is adjusted to free form surface.Two elements, four surfaces, at least two surface are free form surface.It is preferred that
Ground, when illumination spot cross sectional shape is round, the free form surface in first element, second element 12,13 is changed to revolution pair
What is claimed is aspherical, can further compression volume, element is readily modified as Fresnel Lenses, and effect is identical.It is uniform in the present embodiment
HUD lighting systems are collimated, illumination region is not limited to circle, can be the shapes such as rectangle, square.Uniform collimated light path by
At least two elements form, the refraction using optical element to light, and the light beam that light source is sent out directly is shaped as required cut
Face, section can be circle, square, rectangle etc..From light source transmission direction, it is followed successively by first element 12, second element 13.
First element 12 is close to LED, and second element 13 is far from LED.
First element 12 is plane close to the surface of LED, and another side is free form surface.Second element 13 is close to LED's
Surface is free form surface, and another side is plane.First element 12 and second element 13, totally four surfaces, have 1 is with upper surface
Free form surface.When illuminated area is round, free form surface can be rotational symmetric aspheric.Illuminated area is square, rectangle etc.
When non-circular geometric face, free form surface is non-rotational symmetry curved surface.
As shown in Figure 4, intensity distribution adjustment element is made of refraction or reflecting element 14 and diffused component 15, wherein
Refraction or reflecting element 14 are refracting element, and light incident surface is plane, and exit facet is curved surface.Diffused component element 15 is diffusion member
Incident beam is scattered by part.Element 14,15 parameters are reasonably selected, after uniform collimated light beam passes through, illumination to LCD 2
On, light distribution signal in Fig. 4 as respectively included in section, and 710~712,720~722,730~732, it is preferable that light intensity
Distribution is matched with HUD imaging optical systems.
Please refer to Fig. 5 (a), Fig. 5 (b) be the x of array arrangement, y-axis direction, x, z-axis direction structural schematic diagram, array row
Cloth, the uniform collimation HUD lighting systems in the present embodiment, can be according to array arrangement, and increases lighting area after being spliced into.Such as
It is 2 × 3 array arrangements shown in Fig. 5 (a), Fig. 5 (b).Under equal conditions, increased lighting area, and LED numbers increase, and utilize
The increase of whole luminous flux.It should be noted that for array arrangement, light can cause crosstalk, and one group uniformly collimates HUD illuminations
The light meeting crosstalk of system enters in adjacent another group.Can by add structural member be blocked, additionally, due in view of
The light angle that crosstalk enters adjacent sets is generally 20~40 °, therefore after subsequent element, will not be into pleasing to the eye box region.Therefore
It is limited to final human eye viewing Imaging, it can be ignored in the present embodiment.Lighting system can be spliced into according to array arrangement
After increase lighting area.Can be 1 × 2 array, 2 × 2 arrays etc., arrangement form can be rectangle, hexagon etc..
As a kind of reduction procedure, Fig. 6, Fig. 7 (a), Fig. 7 (b) are please referred to, is single illuminating lens, array arrangement respectively
X, y-axis direction, x, z-axis direction structural schematic diagram.As shown in fig. 6, the collimation equalization element uses in the present embodiment：
Single illuminating lens.
Preferably, the collimation equalization element uses：The illuminating lens of dislocation arrangement mode.
Preferably, the outgoing beam section of the illuminating lens is circle.
Single illuminating lens as shown in FIG. 6 realizes collimated illumination effect, and outgoing beam section is circle, in circle,
Maintaining uniform illumination；For illuminating bundle close to collimation, it is 6 ° to have certain angle of divergence, the angle of divergence, disclosure satisfy that HUD usage scenarios.Such as Fig. 7
(a), Fig. 7 (b) show beam utilization after raising array arrangement, and array arrangement combines back lighting face uniform-illumination, using mistake
Position arrangement mode.
A kind of head-up display device is also disclosed in the present embodiment comprising：Lighting system illuminates LCD, image optics
System, eye box region and projection the virtual image, the light beam of light source sent out by lighting system successively through over-illumination LCD, image optics system extremely
Eye box region, lighting system are the HUD lighting systems.
Preferably, the output beam in the intensity distribution adjustment element and the imaging optical system in the HUD
Matching setting.
Preferably, the light source that the lighting system uses can be LED or LD.
Preferably, first optical element is arranged close to the light source and second optical element is far from the light source
Setting.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiments or example.
In general, the various embodiments of the disclosure can be with hardware or special circuit, software, logic or its arbitrary combination
Implement.Some aspects can be implemented with hardware, and some other aspect can be implemented with firmware or software, which can
With by controller, microprocessor or the execution of other computing devices.Although the various aspects of the disclosure be shown and described as block diagram,
Flow chart is indicated using some other drawing, but it is understood that frame described herein, equipment, system, techniques or methods can
With in a non limiting manner with hardware, software, firmware, special circuit or logic, common hardware or controller or other calculating
Equipment or some combinations are implemented.
In addition, although operation is described with particular order, this is understood not to require this generic operation suitable shown in
Sequence is executed or is executed with generic sequence, or require it is all shown in operate and be performed to realize expected result.In some feelings
Under shape, multitask or parallel processing can be advantageous.Similarly, although the details of several specific implementations is begged in above
By comprising but these are not necessarily to be construed as any restrictions to the scope of the present disclosure, but the description of feature is only needle in
To specific embodiment.Certain features described in some embodiments of separation can also in combination be held in single embodiment
Row.Mutually oppose, various features described in single embodiment can also be implemented separately or in various embodiments to appoint
The mode of what suitable sub-portfolio is implemented.
Claims (10)
1. a kind of HUD lighting systems, which is characterized in that including：Collimate equalization element and intensity distribution adjustment element, the collimation
Equalization element is set gradually with intensity distribution adjustment element along light source direction, and the collimation equalization element includes at least：One optics
Element, to be adjusted to light source closely to collimate uniform beam, the intensity distribution adjustment element includes at least：To reflect or instead
Penetrate element and the diffused component incident beam to be scattered, the refraction or reflecting element and the diffused component edge
Light source direction is set gradually.
2. HUD lighting systems according to claim 1, which is characterized in that the collimation equalization element includes：Two optics
Element, two optical elements include：First optical element and the second optical element,
First optical element is set gradually with second optical element along light source direction.
3. HUD lighting systems according to claim 1, which is characterized in that the collimation equalization element is rotationally symmetrical
The beam shaping that the collimation equalization element sends out light source when curved surface is circular section, and light beam uniformly divides in section
Cloth.
4. HUD lighting systems according to claim 1 or 2, which is characterized in that the collimation equalization element includes Fresnel
Lens.
5. HUD lighting systems according to claim 1, which is characterized in that the collimation equalization element uses：Single illumination
Lens.
6. HUD lighting systems according to claim 1, which is characterized in that the collimation equalization element uses array arrangement,
Array arrangement mode is：The illuminating lens of dislocation arrangement mode.
7. HUD lighting systems according to claim 1, which is characterized in that the collimation equalization element is non-rotational symmetric
Curved surface when, the beam shaping that light source is sent out is square by the collimation equalization element, rectangle noncircular cross section, and light beam is being cut
It is uniformly distributed in face.
8. a kind of head-up display device, including：Lighting system illuminates LCD, and imaging optical system, eye box region and projection are empty
Picture, the light beam of light source sent out by the lighting system is successively by the illumination LCD, the imaging optical system to the areas Yan He
Domain, which is characterized in that lighting system is such as claim 1-7 any one of them HUD lighting systems.
9. head-up display device according to claim 8, which is characterized in that the output in the intensity distribution adjustment element
Light beam matches setting with the imaging optical system in the HUD.
10. head-up display device according to claim 8, which is characterized in that the light source that the lighting system uses can be with
For LED or LD.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358465.XU CN207867138U (en) | 2017-10-20 | 2017-10-20 | HUD lighting systems, head-up display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358465.XU CN207867138U (en) | 2017-10-20 | 2017-10-20 | HUD lighting systems, head-up display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966533A (en) * | 2019-12-30 | 2020-04-07 | 成都派斯光学有限公司 | Lighting optical system and lighting device |
| CN111948812A (en) * | 2019-05-17 | 2020-11-17 | 未来（北京）黑科技有限公司 | A head-up display system |
| CN112925097A (en) * | 2019-12-05 | 2021-06-08 | 中强光电股份有限公司 | Projection equipment and wearable display device |
| CN113126295A (en) * | 2020-01-15 | 2021-07-16 | 未来（北京）黑科技有限公司 | Head-up display device based on environment display |
-
2017
- 2017-10-20 CN CN201721358465.XU patent/CN207867138U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948812A (en) * | 2019-05-17 | 2020-11-17 | 未来（北京）黑科技有限公司 | A head-up display system |
| JP2022533160A (en) * | 2019-05-17 | 2022-07-21 | フューチュラス テクノロジー カンパニー リミテッド | Optical control device, passive light emitting image source and head-up display system |
| US12320974B2 (en) | 2019-05-17 | 2025-06-03 | Futurus Technology Co., Ltd. | Light control apparatus, passive light-emitting image source and head-up display system |
| CN112925097A (en) * | 2019-12-05 | 2021-06-08 | 中强光电股份有限公司 | Projection equipment and wearable display device |
| CN110966533A (en) * | 2019-12-30 | 2020-04-07 | 成都派斯光学有限公司 | Lighting optical system and lighting device |
| CN113126295A (en) * | 2020-01-15 | 2021-07-16 | 未来（北京）黑科技有限公司 | Head-up display device based on environment display |
| CN113126295B (en) * | 2020-01-15 | 2024-08-13 | 未来（北京）黑科技有限公司 | Environment display-based head-up display device |
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Address after: 215000 4th floor, building 14, Tengfei Innovation Park, 388 Xinping street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Suzhou turnip Electronic Technology Co.,Ltd. Address before: 215123 unit 4-b202, creative industry park, 328 Xinghu street, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU CARROBOT AUTOMOTIVE ELECTRONICS TECHNOLOGY Co.,Ltd. |