HUD layout structure for truck and commercial vehicle

Abstract

The utility model discloses an HUD layout structure for a truck and a commercial vehicle. The layout structure aims to solve the problem that an existing AR-HUD layout design is only suitable for family cars with small-dip-angle windshields and is not suitable for truck with large-dip-angle windshields and commercial vehicles. The layout structure comprises a large-dip-angle windshield and an angle-adjustable light reflecting system, the light reflecting system comprises an image source, a first reflecting mirror, a second reflecting mirror and a third reflecting mirror, the first reflecting mirror is used for reflecting light emitted by the image source, the second reflecting mirror is used for reflecting light emitted by the first reflecting mirror, and the third reflecting mirror is used for reflecting light emitted by the third reflecting mirror. The third reflector is used for reflecting the light emitted by the second reflector. According to the utility model, the difficulties that the inclination angle of the windshield of the truck and the commercial vehicle is large and the HUD is not easy to arrange are overcome, and the HUD is successfully arranged on the truck and the commercial vehicle, so that the visual blind area of a driver of the truck and the commercial vehicle is reduced, the driving visual field is expanded, and the driving comfort of the driver of the truck and the commercial vehicle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle HUD layout, and in particular relates to a HUD layout structure for trucks and commercial vehicles. Background Art

[0002] Existing AR-HUD (Augmented Reality Head-up Display) is designed for the layout of family cars and is still exclusive to small cars. The AR-HUD layout suitable for family cars is as follows: Figure 1 As shown, it consists of two reflectors 111 and a PGU module 112. While ensuring the imaging quality, the volume of the entire HUD module can be reduced. Since the inclination angle of the windshield 113 of the truck and commercial vehicle is large, the angle Q between the optical path 114 and the windshield 113 of the truck and commercial vehicle is small, resulting in the HUD floating above the IP platform, blocking the driver's field of view. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In response to the shortcomings of the existing technology, the purpose of the present utility model is to provide a HUD layout structure for trucks and commercial vehicles. This layout structure is intended to solve the problem that the existing AR-HUD layout design is only suitable for family cars with small-angle windshields, but not for trucks and commercial vehicles with large-angle windshields.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a HUD layout structure for trucks and commercial vehicles, which layout structure includes a steep-angle windshield and an angle-adjustable reflective system. The reflective system includes an image source, a first reflector, a second reflector and a third reflector. The first reflector is used to reflect the light emitted by the image source, the second reflector is used to reflect the light emitted by the first reflector, and the third reflector is used to reflect the light emitted by the second reflector. The steep-angle windshield is used to reflect the light emitted by the third reflector.

[0007] Preferably, the steeply inclined windshield is a windshield of a truck or a commercial vehicle.

[0008] Furthermore, the image source is one of TFT, DLP, and LCOS.

[0009] Furthermore, the first reflector and the second reflector are a combination of a plane mirror and a free-form mirror.

[0010] Furthermore, the first reflector and the second reflector are a free-form surface mirror and a combination of free-form surface mirrors.

[0011] Furthermore, the third reflector is a plane mirror.

[0012] Furthermore, the third reflecting mirror is a free-form surface mirror with the function of balancing aberrations.

[0013] Furthermore, the reflection system is reflected by a reflective film on the imaging area of ​​the windshield with a large inclination angle.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the HUD layout structure of the present invention, since the inclination angle of the steep-angle windshield is too large, the angle Q between the light and the steep-angle windshield is small. In order to make the HUD layout sink below the IP platform, a third reflector is used to reflect the light toward the bottom of the IP platform. In this way, the HUD can be arranged below the IP platform, that is, inside the car, without blocking the driver's field of view.

[0016] The utility model is suitable for trucks and commercial vehicles or other vehicles with large-angle windshields. It solves the problems of large HUD size and HUD floating above the IP platform caused by using the existing HUD layout structure to design HUDs for trucks and commercial vehicles, and provides theoretical support for the entry of HUD into the field of trucks and commercial vehicles. In addition, this layout can overcome the difficulty of HUD layout due to the large inclination of the windshields of trucks and commercial vehicles, and successfully layout the HUD on trucks and commercial vehicles, which not only reduces the blind spots of truck and commercial vehicle drivers, but also expands the driving field of view and improves the driving comfort of truck and commercial vehicle drivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the existing HUD layout structure.

[0018] Figure 2 This is a schematic diagram of the HUD layout structure of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the utility model in which the second reflector uses a plane mirror.

[0020] Figure 4 It is a schematic diagram of the structure of the utility model arranged below the IP table.

[0021] The markings in the accompanying drawings are: 1. High-angle windshield; 2. Image source; 3. First reflector; 4. Second reflector; 5. Third reflector; 6. Light; 7. IP station; 8. Human eye; 9. Virtual image surface; 111. Two reflectors; 112. PGU module; 113. Truck and commercial vehicle windshield; 114. Optical path. DETAILED DESCRIPTION

[0022] This specific embodiment is a HUD layout structure for trucks and commercial vehicles, and its structural diagram is as follows: Figure 2 Figure 4 As shown, the layout structure includes a steep-angle windshield 1 and an angle-adjustable reflective system, which includes an image source 2, a first reflector 3, a second reflector 4, and a third reflector 5. The first reflector 3 is used to reflect the light emitted by the image source 2, the second reflector 4 is used to reflect the light emitted by the first reflector 3, and the third reflector 5 is used to reflect the light emitted by the second reflector 4. The steep-angle windshield 1 is used to reflect the light emitted by the third reflector 5.

[0023] In this embodiment, the steep-angle windshield 1 is a windshield for trucks and commercial vehicles. The steep-angle windshield 1 can be a windshield for trucks, commercial vehicles, or other vehicles with large windshield inclinations and other steep-angled glasses that require a HUD layout.

[0024] In this embodiment, the image source 2 is one of TFT, DLP, and LCOS.

[0025] like Figure 2 and Figure 3 As shown: In this embodiment, the first reflecting mirror 3 and the second reflecting mirror 4 are a combination of a plane mirror and a free-curved mirror, or the first reflecting mirror 3 and the second reflecting mirror 4 are a combination of a free-curved mirror and a free-curved mirror.

[0026] In this way, the light 6 emitted by the image source 2 is reflected by the first reflector 3 and the second reflector 4 to achieve aberration correction and image magnification.

[0027] like Figure 2 and Figure 3 As shown: In this embodiment, the third reflector 5 is a plane mirror.

[0028] In this arrangement, the light 6 is deflected by the third reflector 5 to the steeply inclined windshield 1 , and after being reflected by the steeply inclined windshield 1 , a virtual image can be perceived at the position of the virtual image surface 9 at the position of the human eye 8 .

[0029] like Figure 2 and Figure 4 As shown: In this embodiment, the third reflector 5 is a free-form surface mirror with the function of balancing the aberration. Such a setting can improve the degree of freedom of design and further reduce the aberration.

[0030] In this embodiment, the reflective system reflects that the imaging area of ​​the steep angle windshield 1 is affixed with a reflective film, that is, the steep angle windshield 1 is partially or entirely affixed with a reflective film. Obviously, combined with Figure 2 Obviously, the "partial" at least refers to the imaging area reflected by the reflective system on the steep-angle windshield 1, and may also refer to the entire steep-angle windshield 1 being covered with a reflective film.

[0031] Working principle: Figure 2 、 3 As shown, a HUD structure is designed for a steep-angle windshield 1 for trucks and commercial vehicles. Light 6 emitted by an image source 2 is reflected by a first reflector 3 and a second reflector 4 to achieve aberration correction and image magnification. The light 6 is then deflected by a third reflector 5 to the steep-angle windshield 1. After being reflected by the steep-angle windshield 1, a virtual image can be perceived by the human eye 8 at the position of a virtual image plane 9.

[0032] Specifically, the light 6 emitted by the image source 2 is reflected by the first reflector 3 for the first time, and the light 6 reflected by the first reflector 3 is directed to the second reflector 4. The second reflector 4 reflects the light 6 for the second time, and the light 6 reflected by the second reflector 4 is directed to the third reflector 5. The third reflector 5 reflects the light 6 toward the steep windshield 1. The steep windshield 1 reflects the light 6. The light 6 reflected by the steep windshield 1 enters the human eye 8, and the human eye 8 perceives the virtual image located on the virtual image surface 9 in front of the steep windshield 1.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A HUD layout structure for trucks and commercial vehicles, comprising a large-angle windshield (1) and an angle-adjustable reflective system, characterized in that: The reflective system comprises an image source (2), a first reflector (3), a second reflector (4) and a third reflector (5); the first reflector (3) is used to reflect light emitted by the image source (2); the second reflector (4) is used to reflect light emitted by the first reflector (3); the third reflector (5) is used to reflect light emitted by the second reflector (4); and the steeply inclined windshield (1) is used to reflect light emitted by the third reflector (5).

2. The HUD layout structure for trucks and commercial vehicles according to claim 1, characterized in that: The steeply inclined windshield (1) is a windshield for a truck or a commercial vehicle.

3. The HUD layout structure for trucks and commercial vehicles according to claim 2, characterized in that: The image source (2) is one of TFT, DLP, and LCOS.

4. The HUD layout structure for trucks and commercial vehicles according to claim 3, characterized in that: The first reflecting mirror (3) and the second reflecting mirror (4) are a combination of a plane mirror and a free-form surface mirror.

5. The HUD layout structure for trucks and commercial vehicles according to claim 3, characterized in that: The first reflecting mirror (3) and the second reflecting mirror (4) are a free-form surface mirror and a combination of free-form surface mirrors.

6. The HUD layout structure for trucks and commercial vehicles according to claim 3, characterized in that: The third reflecting mirror (5) is a plane mirror.

7. The HUD layout structure for trucks and commercial vehicles according to claim 3, characterized in that: The third reflecting mirror (5) is a free-form surface mirror with the function of balancing aberrations.

8. The HUD layout structure for trucks and commercial vehicles according to claim 1, characterized in that: The reflection system reflects light on an imaging area of ​​the windshield (1) with a large inclination angle and is affixed with a reflective film.

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