Multifunctional holographic multiplexing vehicle window system capable of preventing strong light and holographic multiplexing method thereof

Abstract

The invention discloses a multifunctional holographic multiplexing vehicle window system capable of preventing strong light and a holographic multiplexing method thereof. The system comprises an electric control module, a holographic vehicle window module and a photoelectric conversion module. Wherein the electric control module comprises a projection module, a switch module and a photosensitive element, the projection module generates a target image, the switch module controls the electric switchable element to be switched on and off, and the photosensitive element detects the light intensity level. The holographic car window module comprises car window glass and a holographic functional film attached to the surface of a car window and is used for changing wavefront of light of the outside and the projection module. The photoelectric conversion module receives light collected by the holographic functional film and converts the light into electric energy to supply power to the electric control module. According to the system and the method, while head-up display is realized, interference of external glare on a driver is weakened, temperature rise in a vehicle caused by strong light is inhibited, and the external strong light is collected for supplying power to the electric control module. The driving safety and the practicability of the head-up display system can be effectively improved while the display content is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle information optics, and particularly to a multifunctional holographic multiplexing vehicle window system capable of preventing strong light and a holographic multiplexing method thereof. Background Art

[0002] The overall sales volume of the automotive market generally maintains a growth trend. At the same time, according to a report released by the World Health Organization, road traffic accidents are the leading cause of death among people aged 5 to 29 globally. Therefore, improving the safety and comfort of automobiles is a major challenge faced by designers. Currently, glare caused by external strong light and rising interior temperature are the main problems faced by automotive safety and humanized design.

[0003] The strong light causing glare mainly comes from sunlight, reflected light from the glass facades of buildings, and the high beams of surrounding vehicles at night. Glare makes it difficult for drivers to observe the external environment and they cannot discover and handle dangerous situations in a timely manner. Current solutions include virtual sun visors and adjustable vehicle lights. The existing patent US201415038115A discloses a method for operating a vehicle glare protection system. A video sensing device acquires an image of the vehicle passenger's head and compares it with a typical glare response pattern. This method brings a large computational burden to the vehicle control system, and the response speed and recognition accuracy need to be improved. The existing patent US201615375696A discloses an automotive lamp and its adjustment method, which reduces the glare to other vehicle drivers by adjusting the light pattern of the irradiated light. This method avoids the high beam of one's own vehicle from interfering with other vehicles, but fails to prevent the driver of one's own vehicle from being affected by glare.

[0004] The increase in the interior temperature mainly occurs in the strong sunlight of summer. On the one hand, it affects the service life of interior facilities, and on the other hand, it poses health hazards to people who drive or ride in the vehicle for a long time. Current solutions mainly include setting up sunshades or curtains, but they are prone to blocking the line of sight.

[0005] In addition, since an automobile is a mobile platform, the main service objects of the vehicle power supply and vehicle system are vehicle-mounted electronic systems, and it is not desirable for the display module to occupy too much power and computing resources.

[0006] In view of the above problems, the present invention aims to provide a multifunctional holographic multiplexing vehicle window system capable of preventing strong light and a holographic multiplexing method thereof to solve one or more of the above technical problems. Summary of the Invention

[0007] The purpose of the present application aims to solve at least one of the above technical problems to a certain extent.

[0008] To this end, the first object of this application is to propose a multifunctional holographic multiplexing window system that can prevent strong light, and the second object of this application is to propose a holographic multiplexing method for a multifunctional holographic multiplexing window that can prevent strong light.

[0009] To achieve the above object, an embodiment of the first aspect of this application proposes a multifunctional holographic multiplexing window system that can prevent strong light, including:

[0010] An electronic control module (100), a holographic window module (200), and a photoelectric conversion module (300).

[0011] Among them, the electronic control module (100) includes a projection module (101), a switch module (102), and a photosensitive element (103).

[0012] The holographic window module (200) includes a window glass (201) and a holographic functional film (202) attached to the window surface. The window surface is divided into a projection area (203) and a non-projection area (204).

[0013] The projection module (101) projects the generated target image onto the projection area (203). The switch module (102) is used to control the opening and closing of the electro-switchable element. The photosensitive element (103) is used to detect the light intensity of the external light.

[0014] The holographic functional film (202) changes the wavefront parameters of the external light (401) and the light of the projection module (402).

[0015] The photoelectric conversion module (300) receives the light collected by the holographic functional film (202) and converts it into electrical energy to supply power to the electronic control module (100).

[0016] Optionally, the recording material of the holographic functional film (202) is any one of silver salt dry plate, photopolymer, dichromate gelatin, photorefractive material, photochromic material, photoanisotropic material, etchant, liquid crystal, dispersed liquid crystal, polymer dispersed liquid crystal, and metasurface.

[0017] Optionally, the holographic functional film (202) includes a first holographic functional film (202a), a second holographic functional film (202b), and a third holographic functional film (202c).

[0018] Optionally, the first holographic functional film (202a) is only located in the projection area and deflects the light of the target image to the human eye; the second holographic functional film (202b) is only located in the projection area and deflects the external strong light away from the human eye; the third holographic functional film (202c) is located in the non-projection area, deflects the external strong light away from the human eye and collects the external light to the photoelectric conversion module (300).

[0019] Optionally, the holographic functional film (202) realizes functional multiplexing by means of single-layer wavefront multiplexing, single-layer wavelength multiplexing, single-layer angle multiplexing, multi-layer same-side spatial stacking or multi-layer opposite-side spatial stacking.

[0020] Optionally, the holographic functional film (202) is a static optical element or an electrically switchable optical element.

[0021] Optionally, the window glass (201) is any one of a plane, a cylinder surface, and a free-form surface.

[0022] Optionally, the window glass (201) is any one of a front windshield, a rear windshield, a side window glass, and a roof window glass of a vehicle.

[0023] Optionally, the window glass (201) can be used as a transmission element or a light guiding element. When used as a transmission element, except for the refraction caused by the refractive index difference, the window glass (201) does not produce additional modulation on light; when used as a light guiding element, the holographic functional film (202) couples external light into the window glass (201) and transmits it therein.

[0024] The multifunctional holographic composite vehicle window system capable of preventing strong light according to the embodiments of the present application includes: an electric control module, a holographic vehicle window module, and a photoelectric conversion module. Among them, the electric control module includes a projection module, a switch module, and a photosensitive element. The projection module generates a target image, the switch module controls the opening and closing of the electrically switchable element, and the photosensitive element detects the light intensity level. The holographic vehicle window module includes a window glass and a holographic functional film attached to the window surface, which is used to change the wavefront of external light and the light of the projection module. The photoelectric conversion module receives the light collected by the holographic functional film and converts it into electrical energy to supply power to the electric control module. This system and method, while realizing head-up display, not only weaken the interference of external glare to the driver, inhibit the rise of the vehicle interior temperature caused by strong light, but also collect external strong light for power supply to the electric control module. It can effectively improve driving safety and the practicality of the head-up display system while obtaining the display content.

[0025] To achieve the above object, an embodiment of the second aspect of the present application proposes a holographic multiplexing method for a multifunctional holographic composite vehicle window capable of preventing strong light, including the following steps:

[0026] S1 The projection module generates a target image and projects it onto the window projection area;

[0027] S2 The holographic functional film in the window projection area deflects the light of the target image to the human eye;

[0028] S3 When the photosensitive element detects that the external light intensity exceeds the threshold, the switch module controls the state conversion of the electrically switchable element;

[0029] The S4 holographic functional film deflects external light outside the photoelectric conversion module or the eyebox;

[0030] The S5 photoelectric conversion module converts light energy into electrical energy and powers the electronic control module.

[0031] For the holographic multiplexing method of the multifunctional holographic composite vehicle window capable of preventing strong light in the embodiments of the present application, the projection module generates a target image, the switch module controls the opening and closing of the electro-switchable element, and the photosensitive element detects the light intensity level. The holographic window module is used to change the wavefront parameters of the external and projection module light. The photoelectric conversion module receives the light collected by the holographic functional film and converts it into electrical energy to power the electronic control module. While realizing the head-up display, the system and method not only weaken the interference of external glare to the driver, suppress the rise of the vehicle interior temperature caused by strong light, but also collect the external strong light to power the electronic control module. It can effectively improve driving safety and the practicality of the head-up display system while obtaining the display content. Description of the Drawings

[0032] The specification drawings forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0033] Figure 1 is a schematic structural diagram of a multifunctional holographic composite vehicle window system capable of preventing strong light on the front windshield in an embodiment of the present application;

[0034] Figure 2 is a side view of the multifunctional holographic composite vehicle window system capable of preventing strong light on the front windshield in an embodiment of the present application when the first holographic functional film (202a) is opened;

[0035] Figure 3 is a side view of the multifunctional holographic composite vehicle window system capable of preventing strong light on the front windshield in an embodiment of the present application when the second holographic functional film (202b) is opened;

[0036] Figure 4 is a side view of the multifunctional holographic composite vehicle window system capable of preventing strong light on the side window glass in another embodiment of the present application when the first holographic functional film (202a) is opened;

[0037] Figure 5 is a side view of the multifunctional holographic composite vehicle window system capable of preventing strong light on the side window glass in another embodiment of the present application when the second holographic functional film (202b) is opened;

[0038] Figure 6 is a schematic structural diagram of a multifunctional holographic composite vehicle window system capable of preventing strong light on the rear windshield in another embodiment of the present application;

[0039] Figure 7It is a schematic structural diagram of a multifunctional holographic composite vehicle window system with a top window glass that can prevent strong light in another embodiment of the present application;

[0040] Figure 8 It is a side view of the first holographic function film (202a) of a multifunctional holographic composite vehicle window system with a front windshield that can prevent strong light from the rear side in another embodiment of the present application;

[0041] Figure 9 It is a side view of the second holographic function film (202b) of a multifunctional holographic composite vehicle window system with a front windshield that can prevent strong light from the rear side in another embodiment of the present application;

[0042] Figure 10 It is a flowchart of the holographic multiplexing method of a multifunctional holographic composite vehicle window system that can prevent strong light in an embodiment of the present application. Specific embodiments

[0043] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0044] The following further describes the present application in detail with specific embodiments, and these embodiments should not be construed as limiting the scope claimed by the present application.

[0045] The multifunctional holographic composite vehicle window system that can prevent strong light and its holographic multiplexing method in the embodiments of the present application will be described below with reference to the drawings.

[0046] Figure 1 It is a schematic structural diagram of a multifunctional holographic composite vehicle window system with a front windshield that can prevent strong light in an embodiment of the present application. The system includes an electronic control module (100), a holographic window module (200), and a photoelectric conversion module (300). Among them, the electronic control module (100) includes a projection module (101), a switch module (102), and a photosensitive element (103). The holographic window module (200) includes a window glass (201) and a holographic function film (202) attached to the window surface. The window surface is divided into a projection area (203) and a non-projection area (204).

[0047] Further, the projection module (101) only acts on the window projection area (203), and the projection module (101) generates a target image and projects it onto the projection area (203). The photosensitive element (103) is located at the top of the window and can detect the light intensity from the outside. The switch module (102) controls the working state of the holographic functional film. The photoelectric conversion module (300) includes a first photoelectric conversion module (300a), a second photoelectric conversion module (300b), a third photoelectric conversion module (300c), and a fourth photoelectric conversion module (300d) located around the window. The external light during the day mainly refers to sunlight (401a), and the external light at night mainly refers to artificial light typified by the high beam of the vehicle, such as (401b).

[0048] The above mainly introduced the specific composition of the multifunctional holographic composite vehicle window system that can prevent strong light. Next, the working principle of the multifunctional holographic composite vehicle window system that can prevent strong light will be further described.

[0049] When the photosensitive element (103) detects that the external light intensity is weak and is not sufficient to cause glare to the driver or lead to an increase in the vehicle interior temperature, as Figure 2 shown, the switch module (102) controls the first holographic functional film (202a) in the projection area to turn on and the second holographic functional film (202b) in the projection area to turn off. The first holographic functional film (202a) is in a working state and deflects the target image projected by the projection module (101) to the human eye, and the driver can observe the target image. It should be noted that the first holographic functional film (202a) can work in a virtual image mode or a real image mode. The second holographic functional film (202b) is in a closed state, and the closed second holographic functional film (202b) is equivalent to a layer of transparent medium and does not affect the transmission of light waves. The third holographic functional film (202c) attached to the non-projection area (204) deflects the external light to any one of the first photoelectric conversion module (300a), the second photoelectric conversion module (300b), the third photoelectric conversion module (300c), and the fourth photoelectric conversion module (300d). The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100).

[0050] When the photosensitive element (103) detects that the external light intensity is strong and is sufficient to cause glare to the driver or lead to an increase in the vehicle interior temperature, as Figure 3As shown, the switch module (102) controls the first holographic functional film (202a) in the projection area to be closed and the second holographic functional film (202b) in the projection area to be turned on. The first holographic functional film (202a) in the closed state is equivalent to a layer of transparent medium and does not affect the transmission of light waves. The second holographic functional film (202b) is in the working state and, together with the third holographic functional film (202c) attached to the non-projection area (204), deflects external light to any one of the first photoelectric conversion module (300a), the second photoelectric conversion module (300b), the third photoelectric conversion module (300c), and the fourth photoelectric conversion module (300d). The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100). By ensuring that only one holographic functional film works in the projection area, crosstalk can be maximally prevented.

[0051] In another embodiment of the present application, the multifunctional holographic composite vehicle window system that can prevent strong light is based on the side window glass. As Figure 4 shown, in low-light conditions, the first holographic functional film (202a) is turned on, and the passenger turns his head to view the target image projected by the projection module (101) onto the projection area (203). As Figure 5 shown, in strong-light conditions, the second holographic functional film (202b) is turned on, and the external strong light is collected on the photoelectric conversion module (300) on one side of the side window. The third holographic functional film in the non-projection area (204) always collects external light and deflects it onto the photoelectric conversion module (300) in both cases. The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100).

[0052] In another embodiment of the present application, the multifunctional holographic composite vehicle window system that can prevent strong light is based on the rear windshield glass. As Figure 6 shown, there is no actual need to view projections on the rear windshield glass, and the holographic functional films (202) are all attached to the non-projection area (204). The photoelectric conversion module (300) includes a first photoelectric conversion module (300a), a second photoelectric conversion module (300b), a third photoelectric conversion module (300c), and a fourth photoelectric conversion module (300d) located around the rear windshield glass. The holographic functional film (202) continuously collects external light onto the photoelectric conversion module (300). The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100).

[0053] In another embodiment of the present application, the multifunctional holographic composite vehicle window system that can prevent strong light is based on the roof window glass. As Figure 7As shown, there is no actual need to view the projection on the top window glass, and the entire holographic functional film (202) is attached to the non-projection area (204). The photoelectric conversion module (300) includes a first photoelectric conversion module (300a), a second photoelectric conversion module (300b), a third photoelectric conversion module (300c), and a fourth photoelectric conversion module (300d) located around the top window glass. The holographic functional film (202) continuously collects external light into the photoelectric conversion module (300). The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100).

[0054] In another embodiment of the present application, the multi-functional holographic composite vehicle window system for the front windshield to prevent strong light can reduce the interference of stray light caused by strong light from the rear side to the human eye. The structure of this system is the same as that of the first embodiment and will not be elaborated here. The working principle of the multi-functional holographic composite vehicle window system for preventing strong light will be further described below.

[0055] When the photosensitive element (103) detects that the external light intensity at the rear side is weak and the stray light caused by the external light entering the cab is not sufficient to interfere with the driver's line of sight, as Figure 8 shown, the switch module (102) controls the first holographic functional film (202a) in the projection area to turn on and the second holographic functional film (202b) in the projection area to turn off. The first holographic functional film (202a) is in a working state and deflects the target image projected by the projection module (101) to the human eye, and the driver can observe the target image. It should be noted that the first holographic functional film (202a) can work in a virtual image mode or a real image mode. The second holographic functional film (202b) is in a closed state, and the closed second holographic functional film (202b) is equivalent to a transparent medium and does not affect the transmission of light waves. The third holographic functional film (202c) attached to the non-projection area (204) deflects the external light to any one of the first photoelectric conversion module (300a), the second photoelectric conversion module (300b), the third photoelectric conversion module (300c), and the fourth photoelectric conversion module (300d). The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100).

[0056] When the photosensitive element (103) detects that the external light intensity is strong and the stray light caused by the external light entering the cab is sufficient to interfere with the driver's line of sight, as Figure 9As shown, the switch module (102) controls the first holographic functional film (202a) in the projection area to be turned off and the second holographic functional film (202b) in the projection area to be turned on. The first holographic functional film (202a) in the off state is equivalent to a layer of transparent medium and does not affect the transmission of light waves. The second holographic functional film (202b) is in the working state and, together with the third holographic functional film (202c) attached to the non-projection area (204), deflects external light and its stray light to any one of the first photoelectric conversion module (300a), the second photoelectric conversion module (300b), the third photoelectric conversion module (300c), and the fourth photoelectric conversion module (300d). The photoelectric conversion module (300) converts the collected light into electrical energy and supplies power to the electronic control module (100). By deflecting stray light away from the human eye, driving safety is ensured. By ensuring that only one holographic functional film works in the projection area, crosstalk can be maximally prevented.

[0057] It should be noted that the only requirement for the operation of this system is to be able to receive the irradiation of external light. Even when the vehicle is parked in a parking space and there is no one in the vehicle, the system can continuously collect light energy and convert it into electrical energy.

[0058] The multifunctional holographic composite vehicle window system according to the embodiment of the present application includes an electronic control module, a holographic window module, and a photoelectric conversion module. Among them, the electronic control module includes a projection module, a switch module, and a photosensitive element. The projection module projects a target image onto the projection area. The switch module controls the opening and closing of the electro-switchable element. The photosensitive element detects the external light intensity level. The holographic window module includes a window glass and a holographic functional film attached to the window surface, which is used to change the wavefront parameters of the external and projection module light. The photoelectric conversion module receives the light collected by the holographic functional film and converts it into electrical energy to supply power to the electronic control module. While realizing the head-up display, this system and method not only weaken the interference of external glare on the driver, suppress the increase in the vehicle interior temperature caused by strong light, but also collect the external strong light for supplying power to the electronic control module. It can effectively improve driving safety and the practicality of the head-up display system while obtaining the display content.

[0059] To achieve the above object, the present application proposes a multifunctional holographic window method.

[0060] Figure 10 It is a flowchart of the multifunctional holographic window method according to an embodiment of the present application.

[0061] As Figure 10 shown, the multifunctional holographic window method includes the following steps:

[0062] S1 The projection module generates a target image and projects it onto the window projection area;

[0063] The holographic functional film in the window projection area of S2 deflects the light of the target image to the human eye;

[0064] In S3, when the photosensitive element detects that the external light intensity exceeds the threshold, the switch module controls the state conversion of the electro-switchable element;

[0065] In S4, the holographic functional film deflects the external light outside the photoelectric conversion module or the eye box;

[0066] In S5, the photoelectric conversion module converts light energy into electrical energy and supplies power to the electronic control module.

[0067] It should be understood that the implementation principle of the holographic multiplexing method of the multifunctional holographic composite vehicle window capable of preventing strong light in this application is the same as that of the multifunctional holographic composite vehicle window system in the above-mentioned embodiment, and will not be elaborated here.

[0068] In the multifunctional holographic composite vehicle window system capable of preventing strong light according to the embodiment of this application, the projection module projects the target image onto the projection area, the switch module controls the opening and closing of the electro-switchable element, and the photosensitive element detects the external light intensity level. The holographic window module is used to change the wavefront parameters of the external and projection module light. The photoelectric conversion module receives the light collected by the holographic functional film and converts it into electrical energy to supply power to the electronic control module. While realizing the head-up display, the system and method not only weaken the interference of external glare to the driver and suppress the rise of the vehicle interior temperature caused by strong light, but also collect the external strong light for supplying power to the electronic control module. It can effectively improve driving safety and the practicability of the head-up display system while obtaining the display content.

[0069] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the element.

[0070] It should be noted that in the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Without conflict, for those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multifunctional holographic multiplexed car window system that can prevent strong light, characterized in that: include: An electric control module (100), a holographic window module (200) and a photoelectric conversion module (300). The electric control module (100) comprises a projection module (101), a switch module (102) and a photosensitive element (103). The holographic vehicle window module (200) comprises a vehicle window glass (201) and a holographic functional film (202) attached to the vehicle window surface. The vehicle window surface is divided into a projection area (203) and a non-projection area (204). The projection module (101) projects the generated target image onto the projection area (203). The switch module (102) is used to control the opening and closing of the electrically switchable element. The photosensitive element (103) is used to detect the intensity of external light. The holographic functional film (202) changes the wavefront parameters of the external light (401) and the light (402) of the projection module. The photoelectric conversion module (300) receives the light collected by the holographic functional film (202) and converts it into electrical energy to supply power to the electrical control module (100).

2. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The recording material of the holographic functional film (202) is any one of a silver salt dry plate, a photopolymer, a dichromate gelatin, a photorefractive material, a photochromic material, a photoanisotropic material, an etchant, a liquid crystal, a dispersed liquid crystal, a polymer dispersed liquid crystal and a super surface.

3. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The holographic functional film (202) comprises a first holographic functional film (202a), a second holographic functional film (202b) and a third holographic functional film (202c).

4. The holographic functional film (202) as claimed in claim 3, characterized in that: The first holographic functional film (202a) is only located in the projection area to deflect the light of the target image to the human eye; The second holographic functional film (202b) is only located in the projection area, so that strong external light is diverted away from human eyes; The third holographic functional film (202c) is located in the non-projection area, so as to deflect strong external light away from the human eye and collect external light to the photoelectric conversion module (300).

5. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The holographic functional film (202) realizes functional multiplexing by means of single-layer wavefront multiplexing, single-layer wavelength multiplexing, single-layer angle multiplexing, multi-layer same-side spatial stacking or multi-layer opposite-side spatial stacking.

6. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The holographic functional film (202) is a static optical element or an electrically switchable optical element.

7. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The vehicle window glass (201) is any one of a plane, a cylinder and a free-form surface.

8. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The vehicle window glass (201) is any one of a front windshield, a rear windshield, a side window glass and a top window glass of a vehicle.

9. The multifunctional holographic multiplexed vehicle window system capable of preventing strong light as claimed in claim 1, characterized in that: The vehicle window glass (201) can be used as a transmission element or a light-guiding element. When used as a transmission element, the vehicle window glass (201) does not produce any additional modulation effect on light except for the refraction caused by the difference in refractive index; When used as a light-guiding element, the holographic functional film (202) couples external light into the vehicle window glass (201) and transmits it therein.

10. A holographic multiplexing method for a multifunctional holographic multiplexing vehicle window capable of preventing strong light, characterized in that: The following steps are involved: The S1 projection module generates the target image and projects it onto the window projection area; The holographic functional film in the S2 car window projection area deflects the light of the target image to the human eye; S3 When the light sensing element detects that the external light intensity exceeds the threshold, the switch module controls the state conversion of the electrically switchable element; S4 holographic functional film deflects external light to the outside of the photoelectric conversion module or eye box; The S5 photoelectric conversion module converts light energy into electrical energy and supplies power to the electronic control module.

Images