WO2015074331A1

WO2015074331A1 - Vehicular rear-view apparatus having projection function

Info

Publication number: WO2015074331A1
Application number: PCT/CN2014/070706
Authority: WO
Inventors: 潘磊
Original assignee: 潘磊
Priority date: 2013-11-19
Filing date: 2014-01-16
Publication date: 2015-05-28
Also published as: CN203528385U

Abstract

A vehicular rear-view apparatus having a projection function, comprising a rear-view mirror (1) and a projector (2). The rear-view mirror (1) comprises a housing and, arranged within the housing, a display module and a control module. The projector (2) comprises a projector host (23) and a projection screen (24). The projection screen (24) is arranged on a vehicle windshield. The projector host (23) is electrically connected to the control module and to the display module. By means of an enlarged projection of a picture via the projector (2), an effect of extra-large and extra-bright display of an image is achieved. This conserves manufacturing costs, increases display quality, and facilitates easy driving.

Description

Automobile rear view device with projection function

The utility model relates to the field of automobile accessories, and more particularly to an automobile rear view device with a projection function. Background technique

In many special industries, the images on the display need to be seen by the human eye under the sun or strong light, such as the car rearview mirror display. In order to make the driver see the book clearly, the rearview mirror needs a particularly bright screen. And the screen needs to be large enough, and for various reasons, the display screens on the market are now dark. To solve the problem of insufficient screen size and darkness, the traditional method is to improve the brightness of the display backlight, or to use the large display screen of the rear view mirror, so that although the display effect can be improved, the image is still too large. The effect of the bright display. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a rear view device with a projection function with low manufacturing cost and high display quality, which projects a screen through a projector, thereby achieving an effect of super large and super bright display of images. .

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A rear view device for a vehicle with a projection function, comprising a rear view mirror and a projector, the rear view mirror comprising a casing, and a display module and a control module disposed in the casing, the projector comprising a projection host and a projection The projection screen is disposed on the windshield of the automobile, and the projection host is electrically coupled to the control module and the display module.

The projection host is disposed within the housing.

a projector fixing base is further disposed in the housing, the projection host is provided with a ball clamping device, and the projection host is externally disposed outside the rear view mirror, and the projector fixing seat is movable through the ball clamping device and the rear view mirror. connection.

The projection screen is disposed outside the windshield of the automobile.

The projection screen is disposed inside the windshield of the automobile. The projector is a miniature LED projector or a micro laser projector or a miniature infrared projector.

The utility model adopts the above structure, the projection host can be built in the rear view mirror casing, or can be connected outside the rear view mirror through a ball clamping device, and is convenient to disassemble and assemble, and can flexibly adjust the angle; the projector is built in the rear view mirror interior The image can be projected onto the windshield by adjusting the mirrors and lens, which is easy to operate. The screen can be attached to the inside of the car's windshield or to the outside of the car's windshield. The projector's projection onto the windshield is displayed on the screen, allowing the driver to see it. The image to the projection can also be seen by outsiders, and the display is large and bright, which is convenient for the driver to observe the situation around the driving. In addition, since the ordinary projector is large in size and expensive, it is difficult to make an integrated product with the rear view mirror. The pico projector used in the present invention is not only small in size but also relatively inexpensive, that is,

Book

The so-called pocket projector, cleverly matched with the rearview mirror, forms a new all-in-one multi-function mirror with image projection.

The features and advantages of the present invention will become more apparent from the detailed description of the embodiments. DRAWINGS

1 is a schematic structural view of an external projection host of the present invention;

Figure 2 is an A-A accompanying view of Figure 1;

3 is a schematic exploded view showing the structure of the projection host externally according to the present invention;

Figure 4 is a schematic view of the ball clamping device of the present invention;

FIG. 5 is a schematic exploded view of the built-in structure of the projection host of the present invention; FIG.

Figure 6 is a schematic view showing an image of a rear view mirror display screen of the present invention;

7 is a schematic diagram of an image displayed on a projection screen of the present invention;

FIG. 8 is a schematic view showing the torsion angle of the projector main body when it is externally disposed.

In the picture:

1, rearview mirror; 2, projector; 11, upper cover; 12, lower cover; 13, button; 14, mirror glass; 15, rearview mirror display; 16, PCB bracket; 17, PCB board; 18, bracket fixing seat; 19, projector fixing seat; 20, upper cover lamp cover; 21, lower cover lamp cover; 22, combination bracket; 23, projection host; 24, projection screen; 25, ball device. detailed description The present invention will be further described in detail in one embodiment, but it should be noted that the scope of protection of the present invention is not limited thereto.

Example 1

As shown in FIG. 1-4, a rear view device for a car with a projection function includes a rear view mirror 1 and a projector 2, the rear view mirror 1 includes a casing, and the outer casing is composed of an upper cover 11 and a lower cover 12, and the upper cover 1 There is a button 13 and an upper cover lamp cover 20, and a lower cover lamp cover 21 and a combination bracket 22 are disposed on the lower cover 12; a display module and a display module are arranged in the outer casing

The control module includes a rearview mirror glass 14 and a rearview mirror display 15. The control module includes a PCB bracket 16, a PCB board 17, and a bracket mount 18; and a projector mount 19 is further disposed in the housing. Projector 2 book

The projection host 23 and the projection screen 24 are provided. The projection host 23 is provided with a ball clamping device 25, and the projection host 23 is externally disposed outside the rearview mirror, and is movably connected to the projector fixing seat 19 inside the rearview mirror through the ball clamping device 25. The projection screen is placed on the windshield of the car and can be attached to the inside of the windshield of the car or to the outside of the windshield of the car.

Example 2:

As shown in FIG. 5, a rear view device for a car with a projection function includes a rear view mirror 1 and a projector 2, the rear view mirror 1 includes a casing, and the outer casing is composed of an upper cover 11 and a lower cover 12, and the upper cover 1 is provided There is a button 13 and an upper cover lamp cover 20, and a lower cover lamp cover 21 and a combination bracket 22 are disposed on the lower cover 12; a display module and a control module are disposed in the outer casing, and the display module includes a rear view mirror glass 14 and a rear view mirror display. The screen 15, the control module includes a PCB holder 16, a PCB board 17, and a bracket holder 18. The projector 2 includes a projection host 23 and a projection screen 24. The projection host 23 is disposed inside the rear view mirror housing. The projection screen is disposed on the windshield of the automobile, and can be attached to the inner side of the windshield of the automobile or to the windshield of the automobile. Outside.

The main working principle of the pico projector is to emit light from the light source. Through a series of optical illumination systems, the light of the light source is uniformly irradiated onto the display chip, and the signal is realized by the circuit system to realize the color gradation and the gray scale on the display chip. An image is displayed, after which the image on the display chip is enlarged and projected onto the corresponding screen by the projection lens at the front end of the projection. In the projection system, optics are mainly divided into imaging optics and illumination optics, and the most critical components are display chips and lighting components (ie, light sources). The working principle of the invention: the reversing camera and the front camera of the rearview mirror transmit the image image to the rearview mirror through photoelectric induction, and the light source in the projector enlarges and displays the image on the windshield by irradiating the image. The instrument is displayed on the screen and is seen by the human eye. As shown in Figure 6, when the car is moving or when reversing, press the mirror button, the mirror starts working, and the rear view mirror passes the external projection head to pattern Displayed on the display, the picture is small, and the driver is not easy to see the details on the display as the car is moving. After adopting the design of the utility model, the projector function is turned on, as shown in Fig. 7, the micro projector main unit enlarges and projects the image on the display screen onto the projection screen on the windshield, the image is large and clear, and the surrounding situation of the driving is clear at a glance . When the pico projector assembly is built in, by twisting the mirror display, the projection direction can be changed as the angle of the mirror display changes, thereby adjusting to the optimal projection angle; as shown in Figure 8, when the pico projector assembly is outside When the micro projector is connected to the rear view mirror through the ball clamping device,

The various harnesses cleverly pass through the ball-clamping device, and by adjusting the micro-projector angle, the best projection angle is obtained from the surface.

While the present invention has been described with reference to the embodiments of the embodiments of the present invention, various modifications and changes may be made without departing from the scope of the appended claims. The scope should be within the scope of protection of the present invention.

Claims

claims

1. A car rearview device with projection function, characterized in that: it includes a rearview mirror and a projector, the rearview mirror includes a housing, and a display module and a control module located in the housing, and the projection The device includes a projection host and a projection screen. The projection screen is arranged on the windshield of the car. The projection host is electrically connected to the control module and the display module.

2. A car rear view device with projection function according to claim 1, characterized in that: the projection host is installed in the casing.

3. A car rear view device with projection function according to claim 1, characterized in that: the housing is further provided with a projector fixing base, the projection host is provided with a ball clamping device, and the projection The main unit is placed outside the rearview mirror and is movably connected to the projector holder inside the rearview mirror through a ball clamping device.

4. A car rear view device with projection function according to claim 1 or 2 or 3, characterized in that: the projection screen is arranged outside the car windshield.

5. A car rear view device with projection function according to claim 1 or 2 or 3, characterized in that: the projection screen is arranged inside the windshield of the car.

6. A car rear view device with projection function according to claim 1 or 2 or 3, characterized in that: the projector is a micro LED projector, a micro laser projector or a micro infrared projector.