CN206321885U - Multiple display head-up display device - Google Patents

Abstract

The utility model discloses a multiple demonstration new line display device, it contains a main part, a first light path module and a second light path module, wherein this first light path module throws the image in the position of driver eyes the place ahead near distance, this second light path module receives external image light source, in order to obtain longer light path, and can throw out distance far away with the image, in order to reduce the dizzy sense in driver's vision, thereby obtain best visual effect, and then promote driving safety.

Description

Multiple display head-up display device

technical field

The utility model relates to a multi-display head-up display device, especially a head-up display device that can reduce the driver's visual dizziness. It uses a first optical path module to project an image at a position closer to the driver's eyes. , and use a second optical path module to receive an external image light source to obtain a relatively long optical path and project the image over a longer distance to reduce the driver's visual dizziness and obtain the best visual effect. Thereby improving driving safety.

Background technique

At present, the head-up display used on the car is not as complicated as the head-up display on the aircraft. It is an optical system, generally composed of a projector and a mirror. The projector is composed of a signal light source, a projection mirror and other optical systems. The signal light source of the projector is composed of a device such as an LCD liquid crystal display or a CRT cathode ray tube. ), and then the text or image is displayed by the superimposed mirror.

As shown in Figure 1, it is the diagram of the disclosed head-up display of US Patent No. 7,936,518. This head-up display includes an infrared emitting unit 5A to emit an infrared ray to a user DA; a mirror element 3A to reflect toward a concave mirror 4A A visible light LA is emitted from a display 2A, and transmits the infrared rays reflected by the user DA and the concave mirror 4A; a plurality of imaging units 6A, 7A face the concave mirror 4A to sense infrared rays, and each The images come from different directions; and an image processing unit 8A, the concave mirror 4A projects the visible light LA onto a windshield WA, and further reflects the virtual image VA to the eyes of the user DA.

The object distance in front of the concave mirror multiplied by the magnification of the concave mirror is the imaging distance of the virtual image. If the imaging distance of the virtual image is longer, the following conditions are required: (1) The magnification of the concave mirror is increased, but due to the technical limitations of the concave mirror, it cannot be obtained. An ideal lens that can make the virtual images received by the two eyes exactly the same, so the higher the magnification, the greater the imaging error, so that the error caused by the images received by the two eyes will cause the viewer to feel dizzy. degree, so the magnification is usually controlled within seven times; (2) To lengthen the optical path of the object distance, but because the head-up display is usually installed inside the instrument panel in front of the driver, its space is limited, although in order to lengthen the optical path of the object distance, the optical machine and Additional reflectors are designed between the concave mirrors so that the light path can be reflected back and forth to lengthen the object distance. However, due to length limitations, the virtual image distance of the general head-up display can only be 2.5 meters away from the driver's eyes.

The function of car navigation is mainly to guide the driver to switch to the correct lane or warn the distance ahead. In order to play the navigation function, the driver often shifts his attention from the road to the head-up display, which is obviously not a good operation Instead, it is better to directly paste the navigation guidance symbols on the road or on the rear of the front car to be warned, so that the driver does not need to divert attention, which can be said to be the most ideal way to deliver information to the driver, but the problem The key lies in how to lengthen the display distance of the head-up display and stick it directly on the road or on the rear of the front car to be warned. This is an important subject to be broken through.

In order to overcome the above technical bottlenecks, the industry continues to propose various technical solutions. Related technologies can refer to existing patent cases TW I443377, TW I506299, TW 201624101, CN 201610134321, TW 201410829066, CN201510649759, CN201520418145, TW I446001, etc.

Although the above patents have disclosed related head-up display technologies, there are some common problems in use:

1. In the above-mentioned prior patents, some of them use a single projection device to project vertically cut images, but the disadvantage is that the projected standard distance images are too short, and the driver is prone to visual dizziness when watching, which affects the Driving safety.

2. Although some previous patents can use two or more projection devices, or use more cutting screens to project standard distance images and longer distance images, but most of the multiple projection devices are set at the same position. Most of the images provided are horizontal cutting images on the same horizontal plane, so there are fewer vertical cutting images, so it is not easy to accurately paste the navigation guidance symbols directly on the road or on the rear of the front car to be warned, so that the navigation guidance The effect is greatly reduced.

Utility model content

The purpose of this utility model is to provide a head-up display device that can reduce the driver's visual dizziness, which uses a first optical path module to project an image at a position closer to the driver's eyes, and uses a second optical path module Receive the external image light source to obtain a relatively long light path, and can project the image to a longer distance to reduce the driver's visual dizziness, so as to obtain the best visual effect and improve driving safety.

In order to achieve the above purpose, the multi-display head-up display device provided by the utility model includes:

A main body with an accommodating space and an opening inside;

A first optical path module, which is arranged in the accommodating space, the first optical path module includes a first optical machine and a first concave mirror, the first concave mirror reflects and magnifies the picture of the first optical machine, and passes through the opening projects upwards on a windshield;

A second optical path module, which is arranged in the accommodating space, the second optical path module includes a second concave mirror, the second concave mirror reflects and amplifies the image light source from the outside, and projects upward on the windshield through the opening on the glass;

Through the above structure, the first optical path module projects an image at a position closer to the driver's eyes, and the second optical path module receives an external image light source. The optical path length of the external image light source is determined by the second concave mirror and the external The distance of the image light source is not limited by the size of the subject, so a relatively long optical path can be obtained, so that the image can be projected for a longer distance.

The above-mentioned first optical path module further includes a first reflector, which is arranged in the accommodating space to reflect the image projected by the first optical machine.

The above-mentioned first optical path module further includes a first rotation shaft, the first concave mirror is fixed on the first rotation shaft, and the position of the image projected on the windshield is adjusted by the rotation of the first rotation shaft.

The above-mentioned second optical path module further includes a second rotation shaft, the second concave mirror is fixed on the second rotation shaft, and the position of the image projected on the windshield is adjusted by the rotation of the second rotation shaft.

The above-mentioned second optical path module further includes a second optical machine, and the second optical machine is an external image light source.

The above-mentioned second optical machine also includes a second reflector, which is arranged in front of the second optical machine to reflect the image projected by the second optical machine.

The above-mentioned second optical machine is arranged at the junction of the roof of a vehicle and the windshield.

The above-mentioned second optical machine is arranged on the ceiling of a vehicle.

The multi-display head-up display device provided by the utility model also includes a reflective film, and the reflective film is arranged on the windshield.

The above-mentioned main body is arranged on the dashboard of a vehicle.

The multi-display head-up display device provided by the utility model mainly uses the first optical path module to form a first optical path, and projects the image at a position closer to the driver's eyes to form a first virtual image; and the second optical path module The external image light source is received to form a second optical path, which is not limited by the size of the subject, so as to obtain a relatively long optical path and project the image into a second virtual image at a relatively long distance.

The above-mentioned first virtual image and the second virtual image display different information respectively, the first virtual image displays necessary characters and images for a long time, and the second virtual image briefly (blinks) displays turning or danger warning symbols at a horizontal display angle and In line with the actual situation, since the imaging of the second virtual image is displayed in a flickering manner, the imaging time can be reduced to reduce the driver's visual dizziness and obtain an optimal visual environment, thereby improving driving safety.

Description of drawings

FIG. 1 is a schematic diagram of an existing head-up display device;

Fig. 2 is the schematic diagram of the first embodiment of the utility model;

Fig. 3 is the second implementation schematic diagram of the utility model;

Fig. 4 is a schematic diagram of another implementation of setting a reflective film on the windshield provided by the present invention.

Explanation of reference numerals: 2A-display; 3A-mirror element; 4A-concave mirror; 5A-infrared emitting unit; 6A, 7A-imaging unit; 8A-image processing unit; DA-user; LA-visible light; VA-virtual Imaging; WA-windshield; 1-main body; 11-accommodating space; 12-opening; 2-first optical path module; 21-first optical machine; 22-first concave mirror; 23-first reflector ; 24-the first rotation axis; 3-the second optical path module; 31-the second concave mirror; 32-the second rotation axis; Dashboard; C-ceiling; D1-first virtual image; D2-second virtual image; E-eye; L1-first light path; L2-second light path; W-windshield.

detailed description

As shown in Figure 2, the first embodiment of the multi-display head-up display device provided by the present invention includes:

A main body 1 with an accommodating space 11 and an opening 12 inside;

A first optical path module 2, which is arranged in the accommodating space 11, the first optical path module 2 includes a first optical machine 21 and a first concave mirror 22, and the first optical machine 21 projects a picture into a first Optical path L1, the first concave mirror 22 reflects the first optical path L1 and enlarges the image of the first optical machine 21, and the first optical path L1 is projected upward on a windshield W through the opening 12;

A second optical path module 3, which is arranged in the accommodating space 11, the second optical path module 3 includes a second concave mirror 31, the second concave mirror 31 reflects and amplifies a second optical path L2 from an external image light source, The second light path L2 is projected upwards on the windshield W through the opening 12 ;

Through the above structure, the principle of virtual image imaging is through the imaging of the concave mirror, so the concave mirror imaging formula: 1/p+1/q=1/f, f: focal length, q: object distance, p: image distance, generally enlarged The magnification can enlarge the virtual image, and can also make the distance of the virtual image farther in the same ratio. Using the magnification principle of the first concave mirror 22, the appropriate magnification N can make the imaging distance on the first optical path L1 be as long as from the first optical path L1. The distance from the camera 21 to the first concave mirror 22 is enlarged by N times, and the size of the image is also enlarged by N times. Because an excessive magnification will make the driver feel dizzy visually, the magnification is usually set below seven times. Five times is the most appropriate, and the imaging distance is only about 2.2 meters. The first optical path module 2 projects the image at a short distance in front of the driver's eyes E to form a first virtual image D1; the second optical path module 3 receives an external The image light source forms a second optical path. The length of the optical path of the external image light source is determined by the distance between the second concave mirror 31 and the external image light source. Therefore, it is not limited to the size of the main body 1, so a relatively long optical path can be obtained. With the higher magnification (12-15 times) of the second concave mirror 31, the required distance (more than seven meters) can be achieved, and the setting of imaging flicker can reduce the imaging time, so as to reduce the driver's vision. dizziness, and the image can be projected into a second virtual image D2 at a longer distance.

Since the first virtual image D1 and the second virtual image D2 display different information respectively, the first virtual image D1 displays necessary characters and images for a long time, while the second virtual image D2 displays temporarily (flickering) at a horizontal display angle Turning or danger warning symbols are consistent with the actual situation. Since the imaging of the second virtual image D2 is displayed in a flashing manner, the imaging time can be reduced to reduce the driver's visual dizziness.

The above-mentioned first optical path module 2 also includes a first reflector 23, which is installed in the accommodating space 11 to lengthen the distance of the first optical path L1 and reflect the image projected by the first optical machine 21. .

The above-mentioned first optical path module 2 also includes a first rotating shaft 24, the first concave mirror 22 is fixed on the first rotating shaft 24, and the image projected on the windshield W can be adjusted through the rotation of the first rotating shaft 24. s position.

The above-mentioned second optical path module 3 also includes a second rotating shaft 32, the second concave mirror 31 is fixed on the second rotating shaft 32, and the image projected on the windshield W can be adjusted through the rotation of the second rotating shaft 32. s position.

The above-mentioned second optical path module 3 also includes a second optical machine 33, which is arranged at the junction of the roof C of a vehicle and the windshield W, and the second optical machine 33 is an external image light source.

As shown in Figure 3, it is the second embodiment of the multi-display head-up display device provided by the present invention, wherein the second optical machine 33 is arranged on the roof C of the vehicle, and the second optical machine 33 also includes a second reflector 34, the second reflector 34 is arranged in front of the second optical machine 33 to reflect the image projected by the second optical machine 33, so that the overall height of the second optical machine 33 can be reduced, so that the second optical machine The machine 33 is flat against the ceiling C close to the vehicle.

The multi-display head-up display device 1 provided by the utility model also includes a reflective film 4 (as shown in FIG. 2 ), the reflective film 4 is arranged on the windshield W, and the reflective film 4 can be arranged on the inner side of the windshield W (as shown in FIG. 2 ) or in the windshield W (as shown in FIG. 4 ), the reflectivity of the first virtual image D1 and the second virtual image D2 can be improved in this way.

The above-mentioned main body 1 is arranged on the dashboard B of a vehicle, and the main body 1 can be arranged on the dashboard B of the vehicle (not shown) or embedded in the dashboard B of the vehicle.

The function of the first optical path module 2 in the utility model is the same as that of the existing head-up display, and the image is projected at a position closer to the driver's eyes. The second optical path module 3 receives an external image light source, and its optical path length Determined by the distance between the second concave mirror 31 and the external image light source, because it is not limited by the size of the main body 1, a relatively long optical path can be obtained, and the image can be projected over a long distance. Main technical characteristics.

To sum up, the multi-display head-up display device provided by the present invention utilizes the first optical path formed by the first optical path module 2 to project an image at a short distance in front of the driver's eyes, and the second optical path module The formed second light path receives the external image light source, so that it is not limited by the size of the subject to obtain a relatively long light path, and can project the image for a longer distance to reduce the driver's visual dizziness. And obtain an optimal visual environment, thereby improving driving safety, so as to effectively solve the problems existing in the existing head-up display.

The specific embodiments proposed in the content of the utility model are only used to facilitate the description of the technical content of the utility model, rather than restricting the utility model to the above-mentioned embodiments in a narrow sense, and all within the spirit and rights of the utility model Under the situation of the required range, the implementation of various changes still belongs to the protection scope of the present utility model.

Claims (10)

1. a kind of multiple display new line display device, it is characterised in that include：

One main body, is internally provided with an accommodation space and an opening；

One first light path module, it is arranged at the accommodation space, and first light path module is recessed including one first ray machine and one first Face mirror, first concave mirror and the picture for amplifying first ray machine, and it is incident upon a windshield via the opening upwards On；

One second light path module, it is arranged at the accommodation space, and second light path module includes one second concave mirror, and this is second recessed Face mirror reflects and amplified from outside image light source, and is incident upon via the opening upwards on the windshield；

Image is incident upon the position of closer distance in front of driving eye by first light path module, and second light path module receives one External image light source, the optical path length of the external image light source be decided by second concave mirror and outside image light source away from From.

2. multiple display new line display device according to claim 1, it is characterised in that first light path module is also included One first speculum, first speculum is located at the accommodation space, to reflect the image that first ray machine is projected.

3. multiple display new line display device according to claim 1, it is characterised in that first light path module is also included One first rotary shaft, first concave mirror is fixed on first rotary shaft, is incident upon by the rotation adjustment of first rotary shaft The position of image on the windshield.

4. multiple display new line display device according to claim 1, it is characterised in that second light path module is also included One second rotary shaft, second concave mirror is fixed on second rotary shaft, is incident upon by the rotation adjustment of second rotary shaft The position of image on the windshield.

5. multiple display new line display device according to claim 1, it is characterised in that second light path module is also included One second ray machine, second ray machine is external image light source.

6. multiple display new line display device according to claim 5, it is characterised in that second ray machine is also comprising one the Two-mirror, second speculum is in front of second ray machine, to reflect the image that second ray machine is projected.

7. multiple display new line display device according to claim 5, it is characterised in that second ray machine is arranged at a car Ceiling and the windshield intersection.

8. multiple display new line display device according to claim 5, it is characterised in that second ray machine is arranged at a car Ceiling.

9. multiple display new line display device according to claim 1, it is characterised in that also comprising a reflectance coating, this is anti- Penetrate film and be arranged at the windshield.

10. multiple display new line display device according to claim 1, it is characterised in that the main body is arranged at a vehicle Instrument desk.