CN211577563U

CN211577563U - AR-HUD light path system for double display of single-screen far and near images

Info

Publication number: CN211577563U
Application number: CN202020321223.9U
Authority: CN
Inventors: 张涛; 杨立波; 吕涛
Original assignee: Jiangsu Zejing Automobile Electronic Co ltd
Current assignee: Jiangsu Zejing Automobile Electronic Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-09-25
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a AR-HUD optical path system of two demonstration of single-screen far and near image relates to HUD technical field, including a demonstration image source, speculum system, windshield and people's eye, show that the image source carries out two kinds of virtual images in distant view and close view and shows, show the long-range image and the close-range image sharing speculum system in image source, show the projected image in image source, process the speculum system finally gets into people's eye through windshield's internal surface reflection, forms the long-range image and the close-range image that see, show the close-range image in image source and use the mid portion of display screen, the long-range image in display image source uses the peripheral part of display screen. The utility model discloses AR-HUD optical path system of two demonstration of single-screen far and near image through single-screen sharing speculum system, realizes long-range view, close-range view two demonstration, has reduced the technical degree of difficulty that current AR-HUD double screen shows, the HUD volume, and the HUD cost.

Description

AR-HUD light path system for double display of single-screen far and near images

Technical Field

The utility model belongs to the technical field of the HUD technique and specifically relates to a AR-HUD optical path system of two demonstration of single-screen far and near image.

Background

With the development of vehicle-mounted electronic systems, a head-up display (HUD) system can ensure that a driver can see a lot of driving information such as vehicle speed and navigation without leaving the surrounding environment, and thus, the head-up display system has attracted the interests of a lot of manufacturers and consumers. And the augmented reality head-up display system (AR-HUD) that has proposed in recent years adds lane instruction and departure early warning, self-adaptation cruise, live-action navigation, advanced driving assistance system, barrier suggestion, various amusement even, function such as real-time comprehensive information display of real-time to HUD module, realizes the complete integration of virtual image and external driving environment, and HUD just so needs bigger volume, and inside lens need bigger area to show more content.

In order to distinguish the far and near display effects, the conventional AR-HUD adopts double-screen display, namely two HUDs are adopted to display image sources and respectively display a far view and a near view. The size of the HUD is increased, so that the required space in the vehicle is increased, and the HUD is difficult to match with the existing vehicle type in the market; in addition, the double-screen HUD has more parts and complex installation technology; the two display image sources HUD increase the cost and are not beneficial to market promotion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of existence among the above-mentioned prior art, the utility model provides a AR-HUD optical path system of single-screen far and near image double display solves current double screen AR-HUD bulky, the assembly technique is complicated, shortcoming with high costs.

The utility model adopts the technical proposal that:

the utility model provides a AR-HUD optical path system of single-screen far and near image dual display, includes one and shows image source, speculum system, windshield and people's eye, show the image source and carry out two kinds of virtual images of long-range view and close-range view and show, show the long-range view image and the speculum system that shares of close-range view image of image source, show the projected image of image source, pass through the speculum system finally gets into people's eye through windshield's internal surface reflection, forms the long-range view image and the close-range view image that see, the close-range view image that shows the image source uses the mid portion of display screen, the long-range view image that shows the image source uses the peripheral part of display screen.

Preferably, the FOV of the close-up image is 3-6 horizontally, 0.5-1 vertically, and the projection distance is 2-3 m.

Preferably, the FOV of the distant view image is 9-10 horizontal, 3-4 vertical, and a projection distance of 9-10 m.

Preferably, the display image source is one of a 3.1 inch TFT-LCD screen, a DLP, an LCD or an LCOS light machine.

Further, the reflector system comprises a first reflector and a second reflector, and the first reflector and the second reflector are both designed by adopting free-form surfaces.

Further, the display part UI of the display image source is designed, the information displayed by the close-range image comprises the vehicle speed and the rotating speed, and the information displayed by the distant-range image comprises live-view navigation, lane early warning and obstacle early warning.

The utility model has the advantages that:

the utility model discloses a two AR-HUD optical path systems that show of single-screen far and near image through single-screen sharing speculum system, realizes the long-range view, the two shows of close-range view, has reduced the technical degree of difficulty that current AR-HUD double screen shows, the HUD volume, and the HUD cost.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is the projection light path schematic diagram of the AR-HUD light path system of the single-screen far and near image double display of the present invention.

Fig. 2 is the utility model discloses the partial light path schematic diagram of HUD of AR-HUD optical path system of single-screen far and near image double display.

Fig. 3 is the image source display schematic diagram of the AR-HUD optical path system with single-screen far and near image dual display of the present invention.

In the figure, 1-display image source 2-reflector system 3-windshield 4-human eye 11-close-up image 12-far-view image 21-first reflector 22-second reflector.

Detailed Description

In order to enhance the understanding of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-3, the utility model relates to a single-screen far and near image double display's AR-HUD optical path system, including a demonstration image source 1, speculum system 2, windshield 3 and people's eye 4, show that image source 1 carries out two kinds of virtual images in distant view and near view and shows, show distant view image 12 and the 11 sharing speculum system 2 of near view image of image source 1, show the projected image of image source 1, through speculum system 2, finally get into people's eye 4 through windshield 3's internal surface reflection, form distant view image 12 and near view image 11 that see, show that near view image 11 of image source 1 uses the mid portion of display screen, show that distant view image 12 of image source 1 uses the peripheral part of display screen.

As shown in fig. 1, a is the HUD internal light path.

The utility model discloses in, the FOV of close-range image 11 is 3 ° -6 ° horizontally, vertical 0.5 ° -1 °, projection distance 2m-3m, preferably, the FOV of close-range image 11 is 5 ° horizontally, vertical 0.8 °, projection distance 2 m.

The utility model discloses in, the FOV of distant view image 12 is horizontal 9 ° -10 °, vertical 3 ° -4 °, projection distance 9m-10m, preferably, the FOV of distant view image 12 is horizontal 10 °, vertical 3 °, projection distance 9 m.

The utility model discloses in, it is one of 3.1 cun TFT-LCD screen, DLP, LCD or LCOS ray apparatus to show like source 1. Preferably, the display image source 1 is a 3.1 inch TFT-LCD screen, and the TFT-LCD display panel is a thin film liquid crystal display screen, which has the advantages of high responsivity, high brightness, high contrast, etc., and also improves the safety and reliability of use, and is light and thin in shape, saves the installation space, and has low power consumption and long service life.

The utility model discloses in, speculum system 2 includes first speculum 21 and second reflector 22, and first speculum 21 and second reflector 22 all adopt the free-form surface design.

The utility model discloses in, show the display part UI design of image source 1, the information that close-range image 11 shows includes speed of a motor vehicle and rotational speed, and the information that distant-range image 12 shows includes live-action navigation, lane early warning and barrier early warning.

The utility model discloses a same big screen that shows image source 1 uses multiple optimization, directly through the optimization of same light path, and the different regional UI in later stage sets up the realization.

It should be noted that the above-mentioned embodiments are illustrative and not restrictive of the technical solutions of the present invention, and equivalents of those skilled in the art or other modifications made according to the prior art are intended to be included within the scope of the claims of the present invention as long as they do not exceed the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a two AR-HUD optical path systems that show of single-screen far and near image which characterized in that: including a demonstration image source, speculum system, windscreen and people's eye, show that the image source carries out two kinds of virtual images in distant view and close-range view and shows, show the long-range view image and the reflector system that shares of close-range view image in image source, show the projected image of image source, process the speculum system finally gets into people's eye through windscreen's internal surface reflection, forms the long-range view image and the close-range view image that see, the close-range view image that shows the image source uses the mid portion of display screen, the long-range view image that shows the image source uses the peripheral part of display screen.

2. The single-screen far-near image dual-display AR-HUD optical path system according to claim 1, wherein: the FOV of the close-range image is horizontal 3-6 degrees, vertical 0.5-1 degree and projection distance 2m-3 m.

3. The single-screen far-near image dual-display AR-HUD optical path system according to claim 1, wherein: the FOV of the distant view image is horizontal 9-10 degrees, vertical 3-4 degrees and projection distance 9-10 m.

4. The single-screen far-near image dual-display AR-HUD optical path system according to claim 1, wherein: the display image source is one of a 3.1 inch TFT-LCD screen, a DLP, an LCD or an LCOS light machine.

5. The single-screen far-near image dual-display AR-HUD optical path system according to claim 1, wherein: the reflector system comprises a first reflector and a second reflector, and the first reflector and the second reflector are designed by free-form surfaces.

6. The single-screen far-near image dual-display AR-HUD optical path system according to claim 1, wherein: and the display part of the display image source is designed by a UI, the information displayed by the close-range image comprises the speed and the rotating speed, and the information displayed by the distant-range image comprises live-view navigation, lane early warning and obstacle early warning.