CN209946527U - Double-screen multi-focal-section head-up display optical system - Google Patents
Double-screen multi-focal-section head-up display optical system Download PDFInfo
- Publication number
- CN209946527U CN209946527U CN201920514024.7U CN201920514024U CN209946527U CN 209946527 U CN209946527 U CN 209946527U CN 201920514024 U CN201920514024 U CN 201920514024U CN 209946527 U CN209946527 U CN 209946527U
- Authority
- CN
- China
- Prior art keywords
- optical system
- virtual image
- form surface
- image
- screen
- 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
Images
Abstract
The utility model provides a two-screen multi-focal-section head-up display optical system. The device comprises a first image input interface, a second image input interface, a first off-axis free-form surface reflector, a second off-axis free-form surface reflector, virtual image forming glass, an eye observation window, a plane reflector, a first virtual image position and a second virtual image position; the virtual image forming glass is positioned right in front of a human eye observation window, and the first off-axis free-form surface reflector and the second off-axis free-form surface reflector are arranged below the virtual image forming glass; the head-up display optical system adopts a double-screen display mode, and preferably, the first virtual image position is an upper far screen, and the second virtual image position is a lower near screen. This new line shows optical system adopts two off-axis free-form surface reflection lenses, and is provided with adjustment mechanism, can realize the double screen virtual image simultaneously and show, and the field of vision is widened to the same time demonstration, and adopts foldable light path structure, compact structure, installation convenient to use.
Description
Technical Field
The utility model relates to an optical display device, in particular to through adopting off-axis free-form surface mirror piece to realize double screen virtual image, can be applicable to the double screen multifocal section new line display optical system that the multifocal section clearly shows simultaneously.
Background
The head-up display is called as HUD for short, and is also called as a parallel display system, and is mainly applied to the aviation field initially, such as aircrafts, along with the progress of society and the development of science and technology, the head-up display system is used in vehicles at present, and is used for directly and clearly displaying driving information which is needed by a driver and is inconvenient to view to the front of the visual field of the driver, so that the driver can see the driving information without lowering the head or turning the head.
This kind of new line display system obviously has brought a lot of facilities for the driver, more convenient when for example looking over important driving information such as speed per hour, navigation, need not just see with the low head, perhaps look over below, rear of car also need not turn round head, low head, made things convenient for the driver greatly, more can concentrate on driving the car, the comfort level also corresponding increase, nevertheless, this new line display system still has certain not enoughly:
1. the single-screen mode is adopted, so that the view images of two or more different focal sections are inconvenient to view simultaneously, the view images cannot be viewed clearly at the same time, and repeated switching is needed;
2. the display can not be separated according to different focal sections, and the visual field at the same time is limited;
3. the volume is large, and the installation and the use are inconvenient;
4. and a perfect adjusting structure is lacked, and the adjustment to the virtual image distance or the virtual image height position is inconvenient.
Disclosure of Invention
The utility model aims at solving the technical problem, a two-screen multi-focal-section new line display optical system is provided, this new line display optical system adopts two off-axis free-form surface reflection lenses, and is provided with adjustment mechanism, can realize the two-screen virtual image simultaneously and show, and the field of vision is widened to the same time demonstration, and adopts foldable light path structure, compact structure, installation convenient to use.
In order to solve the above-mentioned prior art problem, the technical scheme of the utility model is that:
the utility model relates to a double-screen multi-focal-section head-up display optical system, which comprises a first image input interface, a second image input interface, a first off-axis free-form surface reflector, a second off-axis free-form surface reflector, virtual image forming glass, a human eye observation window, a plane reflector, a first virtual image position and a second virtual image position;
the virtual image forming glass is positioned right in front of a human eye observation window, and the first off-axis free-form surface reflector and the second off-axis free-form surface reflector are arranged below the virtual image forming glass;
the head-up display optical system is in a double-screen display mode, preferably, the first virtual image is located at a far screen above the first virtual image, the second virtual image is located at a near screen below the second virtual image, and the two screens respectively display the amplified virtual images of the images from the first image input interface and the second image input interface.
Preferably, the first free-form surface reflector or the second free-form surface reflector is provided with an electric rotating device, and the pitch angle of the first free-form surface reflector or the second free-form surface reflector is adjusted through the electric rotating device, so that the head-up display optical system can adapt to the sitting posture height difference of drivers with different heights;
preferably, the head-up display optical system is provided with a first real image receiving screen between the first image input interface and the first off-axis free-form surface reflector, and a second real image receiving screen between the second image input interface and the second off-axis free-form surface reflector, the head-up display optical system comprises 2 intermediate real image surfaces, images input by the first image input interface and the second image input interface are respectively projected to the first real image receiving screen and the second real image receiving screen through the optical system to form the two intermediate real image surfaces, the two intermediate real image surfaces sequentially pass through the first off-axis free-form surface reflector and the second off-axis free-form surface reflector to be projected to the virtual image glass, and then the virtual image glass reflects part of light to the position of the observation window of human eyes, so that human eyes can see 2 amplified virtual projected images arranged up and down;
preferably, the first image input interface and the second image input interface are laser source image equipment, and the laser source image equipment is shaped by a laser source and then strikes a miniature high-speed vibration reflector to realize image input displayed according to time sequence;
preferably, the first image input interface and the second image input interface are active light-emitting image display devices, preferably OLED, Micro-LED, LBS devices;
preferably, the first image input interface and the second image input interface are image display devices of an active light emitting type, preferably Lcos and DLP image generators, and are irradiated by an illumination light source to the surface of the image generator, so that the image displayed by the image generator realizes image input;
the virtual image imaging distance of the head-up display optical system is adjustable, and the virtual image imaging distance is from 2m to 20 m.
The head-up display optical system adopts the plane reflector to fold the light path twice or more, so that the whole head-up display optical system is compact in space layout and small in occupied size.
The new line shows optical system directly throws the formation of image light beam and arrives on the virtual image glass, through becoming virtual image glass reflection part light to people's eye observation window department again, makes people's eye see the enlarged virtual image in people's eye observation window the place ahead, through setting up the double screen mode, realizes throwing the image of different burnt sections, lets people's eye can observe the locomotive and have nearly also far away virtual image, can be the effective integration that realizes reinforcing image and outdoor scene.
The component fixing mode, the connecting mode and the shell which can be used in the scheme belong to general means in the technical field and can be changed randomly according to requirements.
The utility model relates to a many burnt sections of double screen new line display optical system, its beneficial effect has:
1. by adopting a double-screen virtual image mode, the visual field images of two or more different focal sections can be conveniently and simultaneously checked, and the simultaneous clear checking can be realized;
2. separate display is carried out aiming at different focal segments, and the visual field is large at the same time;
3. a folding light path structure is adopted, so that the structure is compact, and the installation and the use are convenient;
5. the off-axis free-form surface lens is provided with an adjusting mechanism, so that the imaging distance or the imaging height can be conveniently adjusted.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a dual-screen multi-focal-zone head-up display optical system according to the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of a dual-screen multi-focal-zone head-up display optical system according to the present invention.
Detailed Description
The invention will be further described with reference to the following examples:
example 1:
as shown in fig. 1, the utility model relates to a double-screen multi-focal-zone head-up display optical system, which comprises a first image input interface 1, a second image input interface 2, a first off-axis free-form surface reflector 3, a second off-axis free-form surface reflector 4, virtual image forming glass 5, a human eye observation window 6, a plane reflector 7, a first virtual image position 8 and a second virtual image position 9;
the virtual image forming glass 5 is positioned right in front of an observation window of human eyes, and the first off-axis free-form surface reflector and the second off-axis free-form surface reflector are arranged below the virtual image forming glass;
the head-up display optical system is in a double-screen display mode, the first virtual image is far from the upper screen, the second virtual image is near to the lower screen, and the two screens respectively display virtual images formed by projecting the first image input interface and the second image input interface to human eyes.
The first free-form surface reflector is provided with an electric rotating device, and the pitch angle of the first free-form surface reflector is adjusted through the electric rotating device, so that the head-up display optical system can adapt to the sitting posture height difference of drivers with different heights;
the head-up display optical system is characterized in that a first real image receiving screen 10 is arranged between a first image input interface and a first off-axis free-form surface lens, a second real image receiving screen 11 is arranged between a second image input interface and a second off-axis free-form surface lens, the head-up display optical system comprises 2 intermediate real image surfaces, images input by the first image input interface and the second image input interface are respectively projected to the first real image receiving screen and the second real image receiving screen through an optical system to form the two intermediate real image surfaces, the intermediate real image surfaces sequentially pass through a first off-axis free-form surface reflector and a second off-axis free-form surface reflector to be projected to virtual image glass, and then optically enter human eyes through a reflection part of the virtual image glass, and human eyes can see 2 amplified virtual images which are distributed up and down;
the first image input interface and the second image input interface are laser source image equipment, and the laser source image equipment is shaped by a laser source and then is shot to a micro high-speed vibration reflector, so that image input displayed according to time sequence is realized.
The head-up display optical system adopts the plane reflector to fold the light path twice, so that the whole head-up display optical system is compact in space layout and small in occupied size.
This new line shows optical system directly throws formation of image light beam to on becoming virtual image glass, through becoming virtual image glass reflection part light to people's eye observation window department again, makes people's eye see the enlarged virtual image in people's eye observation window the place ahead, through setting up the double screen mode, realizes throwing the image of different burnt sections, lets people's eye can observe the locomotive and have nearly also far away virtual image, can be the effective integration that realizes reinforcing image and outdoor scene.
Example 2:
as shown in fig. 2, the utility model relates to a double-screen multi-focal-zone head-up display optical system, which comprises a first image input interface 1 ', a second image input interface 2 ', a first off-axis free-form surface reflector 3 ', a second off-axis free-form surface reflector 4 ', virtual image forming glass 5 ', a human eye observation window 6 ', a plane reflector 7 ', a first virtual image position 8 ' and a second virtual image position 9 ';
the virtual image forming glass is positioned right in front of a human eye observation window, and the first off-axis free-form surface reflector and the second off-axis free-form surface reflector are arranged below the virtual image forming glass;
the head-up display optical system is in a double-screen display mode, the first virtual image is located at a far screen above the first virtual image, the second virtual image is located at a near screen below the second virtual image, and the two screens respectively display the amplified virtual images of the images from the first image input interface and the second image input interface.
The first free-form surface reflector or the second free-form surface reflector is provided with an electric rotating device, and the pitch angle of the first free-form surface reflector or the second free-form surface reflector is adjusted through the electric rotating device, so that the head-up display optical system can adapt to the sitting posture height difference of drivers with different heights;
the first image input interface and the second image input interface are active light-emitting image display devices, and the image display devices are OLED equipment;
the head-up display optical system adopts the plane reflector to fold the light path twice, so that the whole head-up display optical system is compact in space layout and small in occupied size.
The new line shows optical system directly throws the formation of image light beam and arrives on the virtual image glass, through becoming virtual image glass reflection part light to people's eye observation window department again, makes people's eye see the enlarged virtual image in people's eye observation window the place ahead, through setting up the double screen mode, realizes throwing the image of different burnt sections, lets people's eye can observe the locomotive and have nearly also far away virtual image, can be the effective integration that realizes reinforcing image and outdoor scene.
The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Claims (7)
1. A double-screen multi-focal-length head-up display optical system is characterized by comprising a first image input interface, a second image input interface, a first off-axis free-form surface reflector, a second off-axis free-form surface reflector, virtual image forming glass, a human eye observation window, a plane reflector, a first virtual image position and a second virtual image position;
the virtual image forming glass is positioned right in front of a human eye observation window, and the first off-axis free-form surface reflector and the second off-axis free-form surface reflector are arranged below the virtual image forming glass;
the head-up display optical system adopts a double-screen display mode, the first virtual image position is an upper far screen, and the second virtual image position is a lower near screen;
the head-up display optical system is provided with a first real image receiving screen between the first image input interface and the first off-axis free-form surface reflector, and a second real image receiving screen between the second image input interface and the second off-axis free-form surface reflector.
2. The optical system of claim 1, wherein the first free-form surface mirror or the second free-form surface mirror is provided with an electric rotating device.
3. The optical system of claim 1, wherein the first and second image input interfaces are laser source imaging devices.
4. The dual-screen multi-focal-length heads-up display optical system of claim 1, wherein the first and second image input interfaces are active light type image display devices, such as OLED, Micro-LED, LBS devices.
5. The optical system of claim 1, wherein the first and second image input interfaces are image display devices of active light type, such as Lcos and DLP image generators.
6. The optical system of claim 1, wherein a virtual image imaging distance of the optical system is adjustable, and the virtual image imaging distance is from 2m to 20 m.
7. The optical system of claim 1, wherein the optical system employs two or more plane mirrors to fold the optical path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514024.7U CN209946527U (en) | 2019-04-16 | 2019-04-16 | Double-screen multi-focal-section head-up display optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514024.7U CN209946527U (en) | 2019-04-16 | 2019-04-16 | Double-screen multi-focal-section head-up display optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209946527U true CN209946527U (en) | 2020-01-14 |
Family
ID=69128167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920514024.7U Active CN209946527U (en) | 2019-04-16 | 2019-04-16 | Double-screen multi-focal-section head-up display optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209946527U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789545A (en) * | 2021-03-11 | 2021-05-11 | 华为技术有限公司 | HUD system, vehicle and virtual image position adjusting method |
| WO2021204011A1 (en) * | 2020-04-09 | 2021-10-14 | 华为技术有限公司 | Head up display device and head up display method |
| WO2023029868A1 (en) * | 2021-08-28 | 2023-03-09 | 华为技术有限公司 | Display apparatus and electronic device |
-
2019
- 2019-04-16 CN CN201920514024.7U patent/CN209946527U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021204011A1 (en) * | 2020-04-09 | 2021-10-14 | 华为技术有限公司 | Head up display device and head up display method |
| CN112789545A (en) * | 2021-03-11 | 2021-05-11 | 华为技术有限公司 | HUD system, vehicle and virtual image position adjusting method |
| WO2022188096A1 (en) * | 2021-03-11 | 2022-09-15 | 华为技术有限公司 | Hud system, vehicle, and virtual image position adjustment method |
| WO2023029868A1 (en) * | 2021-08-28 | 2023-03-09 | 华为技术有限公司 | Display apparatus and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7373539B2 (en) | Ultra-high resolution scanning fiber display | |
| JP7155267B2 (en) | wearable device | |
| CN209946527U (en) | Double-screen multi-focal-section head-up display optical system | |
| JP6797799B2 (en) | Head-mounted imaging device with a curved small lens array | |
| WO2009066408A4 (en) | Display device, display method and head-up display | |
| JP6749334B2 (en) | Projection optical system and head-up display device | |
| CN210348060U (en) | Augmented reality new line display device and system | |
| CN108663807B (en) | Head-up display optical system and apparatus and imaging method thereof | |
| CN106483659A (en) | Method for observing the eyes of the driver of the vehicle with HUD | |
| CN108761802A (en) | A kind of bore hole 3D-HUD display devices | |
| WO2016158333A1 (en) | Head-up display | |
| JP6279881B2 (en) | Virtual image display device | |
| CN108828773A (en) | A kind of AR-HUD light path system of convertible adjusting | |
| JP2019069685A (en) | Information display device | |
| CN112558299A (en) | Head-up display device for augmented reality | |
| JP4945691B2 (en) | Display device, display method, and head-up display | |
| EP2180364A1 (en) | A display and a method of operating a display | |
| JP2008216599A (en) | Image display device | |
| CN209946526U (en) | Multi-focal-section head-up display optical system adopting rotatable focusing flat plate | |
| CN219245861U (en) | Head-up display device with curved image source and vehicle | |
| JP7000167B2 (en) | Image display device | |
| JP2020098236A (en) | Head-up display device | |
| CN211786366U (en) | Head-up display device, imaging system, and vehicle | |
| CN212302100U (en) | Large-view-angle vehicle-mounted head-up display optical system without rotating mechanism | |
| KR20110016118A (en) | Head up display for navigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |