Modularized PGU light machine, vehicle-mounted HUD device and projection equipment

Abstract

The embodiment of the invention provides a modularized PGU optical machine, a vehicle-mounted HUD device and projection equipment. Wherein the modularized PGU light machine comprises a light source module, an illumination modulation module, an image processing chip module and an imaging modulation module; the light source module can emit collimated light; the illumination modulation module is used for dodging the collimated light; the image processing chip module is used for receiving and displaying the light emitted by the illumination modulation module; the imaging modulation module is used for projecting the light emitted by the image processing chip module to a display surface to form a projection picture; the light source module, the image processing chip module and the imaging modulation module are all detachably connected to corresponding standardized interfaces reserved on the illumination modulation module.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of projection display technology. More specifically, the embodiments of the present application relate to a modular PGU optical machine, a vehicle-mounted HUD device and a projection equipment. Background Art

[0002] In the field of projection display technology, the PGU optical system is a key component for projecting image information onto a windshield or a dedicated screen. Its performance directly affects the display effect of the entire head-up display system (HUD) or augmented reality system (AR). Traditional PGU optical system designs mostly use non-standard structures, in which optical, electronic and mechanical components are fixed. This greatly limits the upgrade, maintenance and customization of the PGU optical system, and is not conducive to cost control and rapid iteration. Summary of the invention

[0003] The purpose of this application is to provide a new technical solution for a modular PGU optical machine, a vehicle-mounted HUD device and a projection device.

[0004] In a first aspect, the present application provides a modular PGU optical machine, wherein the modular PGU optical machine comprises:

[0005] A light source module capable of emitting collimated light;

[0006] An illumination modulation module, used for homogenizing the collimated light;

[0007] An image processing chip module, used for receiving the light emitted by the illumination modulation module for display;

[0008] An imaging modulation module, used for projecting the light emitted by the image processing chip module onto a display surface to form a projection picture;

[0009] The light source module, the image processing chip module and the imaging modulation module can all be detachably connected to corresponding standardized interfaces reserved on the illumination modulation module.

[0010] Optionally, the lighting modulation module comprises a body portion, the body portion comprising a first surface and a second surface that are separated from each other, and a side surface connecting the first surface and the second surface;

[0011] The light source module is disposed on the first surface and is detachably connected to a first standardized interface reserved on the first surface;

[0012] The image processing chip module is disposed on the second surface and is detachably connected to a third standardized interface reserved on the second surface;

[0013] The imaging modulation module is arranged on the side surface and is detachably connected to a fifth standardized interface reserved on the side surface.

[0014] Optionally, the modular PGU optical machine further includes a light sensing module and a control circuit module;

[0015] The light sensing module is arranged on the side surface and is detachably connected to a fourth standardized interface reserved on the side surface. The light sensing module includes a light sensing chip, and the center of the light sensing chip is located on the main optical axis of the light emitted by the illumination modulation module;

[0016] The control circuit module is arranged on the second surface and is detachably connected to the seventh standardized interface reserved on the second surface, and the control circuit module and the image processing chip module arranged on the second surface are arranged at intervals.

[0017] Optionally, the control circuit module is connected to the light source module, the image processing chip module and the light sensing module respectively;

[0018] The light sensing module is capable of receiving the light emitted by the lighting modulation module, converting it into an electrical signal and then feeding it back to the control circuit module;

[0019] The control circuit module determines whether the projection image has color cast according to the electrical signal and can perform color cast correction.

[0020] Optionally, the modular PGU optical machine further includes a first heat dissipation module;

[0021] The first heat dissipation module is disposed on the second surface and is detachably connected to a sixth standardized interface reserved on the second surface;

[0022] The first heat dissipation module is located in the interval between the control circuit module and the image processing chip module.

[0023] Optionally, the modular PGU optical machine further includes a second heat dissipation module;

[0024] The second heat dissipation module is arranged on a side of the light source module away from the illumination modulation module, and is detachably connected to an eighth standardized interface reserved on the light source module.

[0025] Optionally, the light source module includes a fixed bracket, and a light source, a collimating lens group and a beam splitting reflector arranged in sequence along the light transmission direction;

[0026] The light source, the collimating lens group, the beam splitting reflector and the eighth standardized interface are all arranged on the fixing bracket;

[0027] The fixing bracket is detachably connected to the first standardized interface.

[0028] Optionally, the illumination modulation module further comprises a light homogenizing element, a reflective element, a lens group and a prism which are sequentially arranged along the transmission direction of the collimated light, and the light homogenizing element, the reflective element, the lens group and the prism are arranged inside the main body;

[0029] Wherein, the light homogenizing element is located on the reflection path of the beam splitting reflector.

[0030] Optionally, the image processing chip module includes an image modulation chip and a mounting bracket, the image modulation chip is disposed on the mounting bracket, and the mounting bracket is detachably connected to the third standardized interface.

[0031] Optionally, the imaging modulation module includes a lens barrel and at least one lens detachably connected to the lens barrel;

[0032] The lens barrel is detachably connected to the fifth standardized interface;

[0033] The imaging modulation module is used to receive the light with image information emitted by the image processing chip module to form a projection picture.

[0034] Optionally, the connection method at the standardized interface includes at least one of mechanical connection or glue dispensing connection; wherein the mechanical connection includes a positioning pin, a machine screw or a snap-on connection.

[0035] Optionally, the internal structure of each functional module among the light source module, the lighting modulation module, the image processing chip module, the light sensing module, the imaging modulation module, the first heat dissipation module, the control circuit module and the second heat dissipation module is configured to be split into sub-modules, and each of the sub-modules is reserved with a standardized interface.

[0036] In a second aspect, the present application provides a vehicle-mounted HUD device, the vehicle-mounted HUD device comprising:

[0037] the vehicle body; and

[0038] The modular PGU optical machine as described in the first aspect.

[0039] In a third aspect, the present application provides a projection device, the projection device comprising:

[0040] Equipment casing; and

[0041] The modular PGU optical machine as described in the first aspect.

[0042] The beneficial effects of this application are:

[0043] The embodiment of the present application aims to provide a modularly designed PGU optical machine to solve the problems of difficult maintenance, long iteration cycle and high cost in traditional PGU optical machines. The modularly designed PGU optical machine system provided in the embodiment of the present application includes functional modules such as a light source module, an illumination modulation module, an image processing chip module, and an imaging modulation module, and each functional module is detachably connected through a standardized interface, thereby ensuring the independence and interchangeability between different functional modules. The embodiment of the present application provides a highly modular, easy-to-upgrade and maintain PGU optical machine design that can meet the needs of different application scenarios and reduce product iteration costs.

[0044] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0046] Figure 1 A schematic diagram of the structure of a modularly designed PGU optical machine provided in an embodiment of the present application;

[0047] Figure 2 A schematic diagram of the structure of a light source module and an illumination modulation module provided in an embodiment of the present application;

[0048] Figure 3 A schematic diagram of the structure of the image processing chip module and the lighting modulation module provided in the embodiment of the present application;

[0049] Figure 4 A schematic diagram of the structures of the imaging modulation module and the illumination modulation module provided in the embodiments of the present application.

[0050] Description of reference numerals:

[0051] 101, light source module; 1011, light source; 1012, collimating lens group; 1013, beam splitting reflector; 1014, fixing bracket;

[0052] 102. Lighting modulation module;

[0053] 103. Image processing chip module;

[0054] 104. Light sensing module;

[0055] 105. Imaging modulation module;

[0056] 106. A first heat dissipation module;

[0057] 107. Control circuit module

[0058] 108. A second heat dissipation module. DETAILED DESCRIPTION

[0059] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0060] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0061] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0062] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0063] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0064] The modular PGU optical machine, vehicle-mounted HUD device and projection equipment provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0065] According to an embodiment of the present application, a modular PGU optical machine is provided. Figures 1 to 4 The modular PGU optical machine includes: a light source module 101, an illumination modulation module 102, an image processing chip module 103 and an imaging modulation module 105; the light source module 101 can emit collimated light; the illumination modulation module 102 is used to homogenize the collimated light; the image processing chip module 103 is used to receive the light emitted by the illumination modulation module 102 for display; the imaging modulation module 105 is used to project the light emitted by the image processing chip module 103 onto a display surface to form a projection picture; the light source module 101, the image processing chip module 103 and the imaging modulation module 105 can all be detachably connected to the corresponding standardized interfaces reserved on the illumination modulation module 102.

[0066] The modular PGU (projection generation unit) optical machine provided in the embodiment of the present application includes multiple functional modules. The present application divides the entire PGU optical machine into multiple independent functional modules such as a light source module 101, an illumination modulation module 102, an image processing chip module 103 and an imaging modulation module 105 through modular design. Figure 1 This design allows each functional module to be independently developed and optimized, thereby improving the maintainability and upgradeability of the entire PGU optical engine.

[0067] In the modular PGU optical machine provided in the embodiment of the present application, each functional module such as the light source module 101, the image processing chip module 103 and the imaging modulation module 105 can be detachably connected to the corresponding standardized interface reserved on the illumination modulation module 102. This standardized interface design ensures the compatibility and interchangeability between different functional modules, so that manufacturers or users can quickly replace or upgrade the corresponding functional modules according to actual needs, reducing maintenance costs and time.

[0068] The modular design provided in the embodiment of the present application makes the PGU optical machine more flexible and scalable. For example, users can choose light source modules 101 (such as laser diodes, light-emitting diodes, etc.), image processing chip modules 103 (such as DLP, LCoS, LBS, etc.) with different performances according to different application scenarios and requirements, and imaging modulation modules 105 to meet different projection display requirements.

[0069] In the modular PGU optical machine provided in the embodiment of the present application, the illumination modulation module 102 is used to perform a series of processing such as homogenization and shaping on the collimated light emitted by the light source module 101 to ensure that the emitted light is uniform and the color is accurate. This design helps to improve the clarity and color reproduction of the final projection image.

[0070] In the modular PGU optical machine provided in the embodiment of the present application, the combination of standardized interface and modular design simplifies the assembly and maintenance process of the entire PGU optical machine. The design of the present application enables the replacement or upgrading of functional modules through simple disassembly operations without the need for complex disassembly and reassembly of the entire PGU optical machine.

[0071] The modular PGU optical engine design provided in the embodiment of the present application can reduce costs and iteration cycles. Specifically, the modular design allows each functional module to be independently developed and produced, reducing R&D and production costs. At the same time, due to the independence and interchangeability between functional modules, it can be quickly upgraded without replacing the entire PGU optical engine, thereby shortening the product iteration cycle.

[0072] In the modular PGU optical machine provided in the embodiment of the present application, the connection method at the standardized interface is set to a detachable connection, such as a positioning pin, machine screw or snap connection, or a glue point connection, or a combination of these assembly methods.

[0073] The present application aims to provide a modularly designed PGU optical machine to solve the problems of difficult maintenance, long iteration cycle and high cost in traditional PGU optical machines. The modularly designed PGU optical machine system provided in the embodiment of the present application includes functional modules such as a light source module 101, an illumination modulation module 102, an image processing chip module 103 and an imaging modulation module 105, and each functional module is detachably connected through a standardized interface, thereby ensuring the independence and interchangeability between different functional modules. The embodiment of the present application provides a highly modular, easy-to-upgrade and maintain PGU optical machine design that can meet the needs of different application scenarios and reduce product iteration costs.

[0074] In summary, the embodiment of the present application describes a modular PGU optical machine, which has higher flexibility, scalability, optical performance, lower cost and iteration cycle through modular design and application of standardized interfaces. These technical effects make the PGU optical machine of the present application have broad application prospects and market competitive advantages in the field of projection display.

[0075] In some examples of this application, see 1 and Figure 2 The lighting modulation module 102 includes a main body, the main body includes a first surface and a second surface that are opposite to each other, and a side surface connecting the first surface and the second surface; the light source module 101 is arranged on the first surface and is detachably connected to a first standardized interface reserved on the first surface; the image processing chip module 103 is arranged on the second surface and is detachably connected to a third standardized interface reserved on the second surface; the imaging modulation module 105 is arranged on the side surface and is detachably connected to a fifth standardized interface reserved on the side surface.

[0076] The lighting modulation module 102 in the present application is an independent unit, which has a main body (see Figure 1 and Figure 2 , similar to a shell), the main body includes a first surface, a second surface and a side surface connecting the two surfaces. The main body has a receiving space, which can accommodate key optical components such as a light homogenizing element, a lens group, and a reflective element to achieve light modulation. The main body of the illumination modulation module 102 is equivalent to the main structure for fixing the key optical components.

[0077] In the modular PGU optical machine provided in the embodiment of the present application, the lighting modulation module 102, especially its main body, plays the role of supporting and connecting other functional modules.

[0078] Specifically, the light source module 101, the image processing chip module 103 and the imaging modulation module 105 are respectively connected to the main body through the first standardized interface, the third standardized interface and the fifth standardized interface at different positions reserved on the main body. This standardized interface design not only ensures the good connection between functional modules, but also greatly enhances the overall interchangeability of the PGU optical machine, making the PGU optical machine more convenient and efficient when upgrading, maintaining and even customizing, thereby significantly reducing operation and maintenance costs, accelerating product iteration cycles, and improving user experience and market competitiveness.

[0079] Since the functional modules are connected by standardized interfaces, the corresponding functional modules can be quickly replaced or upgraded according to different application scenarios and requirements.

[0080] For example, for application scenarios that require high brightness output, a higher performance light source module 101 may be selected; and for application scenarios that require high-resolution imaging, a higher precision image processing chip module 103 may be selected.

[0081] This flexibility not only meets current application needs, but also provides the possibility for future technology upgrades and expansions. As technology continues to advance, the entire PGU can be easily upgraded by replacing modules without the need for large-scale reconstruction or replacement of the entire PGU.

[0082] The standardized interface design simplifies the assembly process of functional modules. Through the standardized interface, functional modules can be quickly and accurately connected together, greatly shortening the assembly time and reducing the assembly cost.

[0083] The lighting modulation module 102 in the present application and its connection method with the light source module 101, the image processing chip module 103 and the imaging modulation module 105, through a highly modular, flexible and scalable design, simplifies the assembly and debugging process, improves the stability and reliability of the PGU optical machine, and provides strong support for the upgrade, maintenance and personalized customization of the PGU optical machine.

[0084] In some examples of this application, see Figure 1The modular PGU optical machine also includes a light sensing module 104 and a control circuit module 107; the light sensing module 104 is arranged on the side surface and is detachably connected to the fourth standardized interface reserved on the side surface, and the light sensing module 104 includes a light sensing chip, and the center of the light sensing chip is located on the main optical axis of the light emitted by the illumination modulation module 102; the control circuit module 107 is arranged on the second surface and is detachably connected to the seventh standardized interface reserved on the second surface, and the control circuit module 107 and the image processing chip module 103 arranged on the second surface are arranged at intervals.

[0085] In this example of the present application, the modular PGU optical machine achieves more sophisticated and efficient optical machine design and functional integration by adding a light sensing module 104 and a control circuit module 107 and further optimizing their layout and connection methods.

[0086] The arrangement of the light sensing module 104 and its connection with the illumination modulation module 102 enable the light sensing module 104 to directly monitor the light emitted by the illumination modulation module 102 .

[0087] It should be noted that the illumination modulation module 102 receives the collimated light emitted by the light source module 101 .

[0088] The light sensing module 104 can timely feed back the light information to the control circuit module 107 by monitoring the received light, so as to realize real-time correction of the projected image quality. This is of great significance for improving the image quality and stability of projection devices (such as vehicle-mounted HUD devices, projection equipment), especially in extreme environments or long-term operation conditions, and can maintain the stability and consistency of the projected image.

[0089] In this example of the present application, see Figure 1 , the control circuit module 107 and the image processing chip module 103 can be detachably arranged on the second surface of the main body of the illumination modulation module 102, and it is worth noting that there is a certain interval between the control circuit module 107 and the image processing chip module 103. This interval layout is conducive to the heat dissipation of the image processing chip module 103 and the control circuit module 107, especially, it avoids the heat generated by the image processing chip module 103 from being directly conducted to the control circuit module 107. This interval setting in this example of the present application is conducive to improving the optical stability and reliability of the PGU shutdown.

[0090] In the present application, the light sensing module 104 and the control circuit module 107 are both detachably connected to the main body of the lighting modulation module 102 (specifically, connected to its second surface) through a standardized interface. This design makes the maintenance and upgrading of the two functional modules more convenient and efficient.

[0091] For example, when a functional module in the photosensitive module 104 and the control circuit module 107 fails or needs to be upgraded, it can be quickly disassembled and replaced with a new functional module without large-scale disassembly of the entire PGU optical machine.

[0092] By integrating the light sensing module 104 and the control circuit module 107 into the modular PGU optical machine and optimizing their layout, not only the overall performance and stability of the PGU optical machine are improved, but also the integration of the PGU optical machine is improved.

[0093] In some examples of the present application, the control circuit module 107 is respectively connected to the light source module 101, the image processing chip module 103 and the light sensing module 104; wherein the light sensing module 104 is capable of receiving the light emitted by the illumination modulation module 102, and converting it into an electrical signal and then feeding it back to the control circuit module 107; the control circuit module 107 determines whether there is color cast in the projection picture according to the electrical signal, and is capable of performing color cast correction.

[0094] In this example of the present application, the control circuit module 107 is connected to the light source module 101, the image processing chip module 103 and the light sensing module 104. This design ensures information flow and collaborative work between the modules inside the PGU optical machine.

[0095] (1) The control circuit module 107 is connected to the light source module 101:

[0096] For example, the control circuit module 107 can be used to control the switching, brightness adjustment and other functions of the light source module 101 .

[0097] (2) The control circuit module 107 is connected to the image processing chip module 103:

[0098] The control circuit module 107 provides necessary timing signals and control instructions to the image processing chip module 103 to ensure accurate processing and high-speed response of image data.

[0099] (3) The control circuit module 107 is connected to the light sensing module 104:

[0100] The light sensing module 104 can receive the light modulated by the illumination modulation module 102 and convert the light signal into an electrical signal. These electrical signals can be fed back to the control circuit module 107 in real time, and the control circuit module 107 uses these signals to detect and correct the color cast of the projection image.

[0101] It should be noted that the light sensing module 104 first receives the light from the illumination modulation module 102 (the illumination modulation module 102 receives the collimated light from the light source module 101 ), and these lights have been subjected to preliminary modulation and homogenization processing.

[0102] The light sensing module 104 of the present application includes a light sensing chip (i.e., a sensor chip such as a photodiode), which can convert the received light into electrical signals, and these electrical signals include not only the intensity information of the light, but also the color component information of the light, etc. The control circuit module 107 can accurately determine whether the projection image projected by the imaging modulation module 105 has a color cast by analyzing these electrical signals.

[0103] The implementation of color cast correction for the projected image is as follows:

[0104] When the control circuit module 107 detects that the projection image has a color cast, it will immediately start the internal integrated color cast correction program. The color cast correction program involves adjusting the control instructions of the image processing chip module 103 to change the color components of the image data. At the same time, the control circuit module 107 can also send instructions to the light source module 101 to adjust the color temperature or brightness of the internal light source to further improve the color performance of the projection image.

[0105] Through the real-time feedback of the light sensing module 104 and the precise correction of the control circuit module 107, the entire PGU optical machine can always maintain the color accuracy of the projected image.

[0106] The modular PGU optical machine design provided in this application, the connection and collaborative work between functional modules, make the entire PGU optical machine more stable and reliable, and reduce the failure rate.

[0107] In addition, due to the standardized interface design between functional modules, the PGU optical machine is more convenient and efficient during upgrades and maintenance.

[0108] The color-accurate, stable and reliable PGU optical engine can provide users with a better visual experience, thereby enhancing the market competitiveness of the product.

[0109] In some examples of this application, see Figure 1The modular PGU optical machine also includes a first heat dissipation module 106; the first heat dissipation module 106 is arranged on the second surface and is detachably connected to a sixth standardized interface reserved on the second surface; the first heat dissipation module 106 is located in the interval between the control circuit module 107 and the image processing chip module 103.

[0110] In this example of the present application, the first heat dissipation module 106 is introduced into the modular PGU optical engine, which is a module designed for heat dissipation of the image processing chip module 103. The first heat dissipation module 106 is detachably connected to the second surface of the body of the illumination modulation module 102 through a reserved sixth standardized interface, and is arranged in the interval between the control circuit module 107 and the image processing chip module 103.

[0111] The first heat dissipation module 106 directly dissipates heat for the image processing chip module 103, effectively solving the problem that the image processing chip module 103 is prone to heat under high load. As one of the core optical components of the PGU optical machine, the performance of the image processing chip module 103 directly determines the quality of the projected image. Through a dedicated heat dissipation module, it can be ensured that the image processing chip module 103 works within a suitable temperature range, thereby maintaining its optimal performance.

[0112] In the present application, the first heat dissipation module 106 also adopts a modular design, so that it can be easily integrated or disassembled with other modules in the modular PGU optical machine. This design not only simplifies the installation and maintenance process of the heat dissipation system, but also improves the upgradeability and scalability of the entire PGU optical machine. If the heat dissipation module needs to be replaced or upgraded later, it is only necessary to simply replace the old heat dissipation module without making large-scale changes to the entire PGU optical machine.

[0113] In this example of the present application, it is described that the first heat dissipation module 106 is connected via a sixth standardized interface, thereby ensuring the universality and compatibility of the interface.

[0114] According to the example of this application, efficient heat dissipation management helps to extend the service life of the image processing chip module 103 and reduce performance degradation or failure caused by overheating. This can not only improve the projection quality and stability of the PGU optical machine, but also reduce the user's maintenance and replacement costs.

[0115] In the present application, the design of the first heat dissipation module 106 enables the entire PGU optical machine to adapt to different working environments and temperature conditions. Whether in hot summer or cold winter, the optical machine can maintain stable performance output.

[0116] In summary, the design of the first heat dissipation module 106 in this example of the present application significantly enhances the reliability and optical stability of the modular PGU optical machine by providing an efficient heat dissipation solution, adopting a standardized interface, and improving the overall performance of the PGU optical machine.

[0117] In some examples of this application, see Figure 1 The modular PGU optical machine also includes a second heat dissipation module 108; the second heat dissipation module 108 is arranged on a side of the light source module 101 away from the lighting modulation module 102, and is detachably connected to the eighth standardized interface reserved on the light source module 101.

[0118] In this example of the present application, see Figure 1 The modular PGU optical engine also introduces a second heat dissipation module 108, which is different from the first heat dissipation module 106 in the above example. The second heat dissipation module 108 is specially designed for heat dissipation of the light source module 101, and is detachably connected to the light source module 101 through the reserved eighth standardized interface.

[0119] The second heat dissipation module 108 is an independent functional module, which is also connected to the light source module 101 through a standardized interface, which greatly enhances the modularity of the PGU optical machine.

[0120] The modular design allows the second heat dissipation module 108 to be customized or replaced according to different light source module characteristics (such as light source type, power, etc.), thereby meeting diverse heat dissipation requirements. The use of standardized interfaces simplifies the replacement process of the heat dissipation module, reduces maintenance costs, and improves the maintainability and flexibility of the PGU optical machine.

[0121] In this example of the present application, the second heat dissipation module 108 is directly arranged on the side of the light source module 101 away from the illumination modulation module 102. This layout ensures that the light source module 101 can directly and efficiently remove the heat generated by the light source module 101.

[0122] When the light source module 101 is an RGB three-color light source module, the second heat dissipation module 108 is an RGB three-color light source heat sink, which can accurately dissipate heat according to the different heating characteristics of the three-color light sources, thereby ensuring the stability and long-term reliability of the light source module 101.

[0123] It should be noted that efficient heat dissipation management helps to improve the light output efficiency and stability of the light source module 101, thereby improving the overall display effect of the PGU optical machine.

[0124] In the present application, by introducing the first heat dissipation module 106 and the second heat dissipation module 108, the entire PGU optical machine can more effectively control the internal temperature to avoid performance degradation or failure caused by overheating. The optimized heat dissipation design enables the PGU optical machine to maintain stable operation in a more severe working environment, thereby improving the environmental adaptability and reliability of the PGU optical machine. In addition, the improvement of heat dissipation efficiency also helps to reduce the power consumption of the PGU optical machine and improve energy utilization efficiency.

[0125] Optionally, the first heat dissipation module 106 and the second heat dissipation module 108 may be the same or different. For example, the first heat dissipation module 106 and the second heat dissipation module 108 may be a heat dissipation structure combining a heat pipe and a fan, or a liquid cooling system.

[0126] In some examples of this application, see Figure 1 and Figure 2 The light source module 101 includes a fixed bracket 1014, and a light source 1011, a collimating lens group 1012 and a beam splitter reflector 1013 arranged in sequence along the light transmission direction; the light source 1011, the collimating lens group 1012, the beam splitter reflector 1013 and the eighth standardized interface are all arranged on the fixed bracket 1014; the fixed bracket 1014 is detachably connected to the first standardized interface.

[0127] In this example of the present application, a structural design of the light source module 101 is described.

[0128] Specifically, see Figure 2 The light source module 101 is designed as a highly integrated and modular component, which includes a fixed bracket 1014, and a light source 1011, a collimating lens group 1012 and a beam splitting reflector 1013 arranged in sequence along the light transmission direction.

[0129] The fixing bracket 1014 is used as the basic supporting structure of the light source module 101, and is responsible for carrying and fixing the light source 1011, the collimating lens group 1012, and the beam splitting reflector 1013. At the same time, an eighth standardized interface is reserved on the fixing bracket 1014 for detachably connecting the second heat dissipation module 108.

[0130] The light source 1011 is an optical element that generates initial light, and different types of light sources can be selected according to application requirements. The light source 1011 is, for example, a laser diode (LD) or a light emitting diode (LED). The light source 1011 can also be an OLED light source.

[0131] The collimating lens group 1012 is used to collimate the light emitted by the light source 1011, that is, to adjust the divergent light into parallel light or approximately parallel light for subsequent optical processing.

[0132] The number of collimating lenses in the collimating lens group 1012 can be designed as needed, and can be two or more.

[0133] The beam splitting reflector 1013 is used to perform beam splitting processing on the collimated light, that is, to reflect and transmit the light to different optical paths according to a specific ratio.

[0134] Through the cooperation of the collimating lens group 1012 and the beam splitting reflector 1013, the light source module 101 can effectively process and control the light, thereby outputting high-quality optical signals, which is crucial to improving the quality of projection display.

[0135] The eighth standardized interface is provided on the fixing bracket 1014 and is used for detachably connecting with the second heat dissipation module 108. The design of the standardized interface ensures the interchangeability and compatibility between the light source module 101 and the second heat dissipation module 108.

[0136] By integrating key optical components such as the light source 1011, the collimating lens group 1012, and the beam splitter reflector 1013 on the fixed bracket 1014, the light source module 101 is highly integrated. This design not only simplifies the overall structure of the PGU optical engine, but also improves the reliability and stability of the PGU optical engine. In addition, the modular design allows the light source module 101 to be replaced or upgraded as an independent unit, reducing maintenance costs.

[0137] Since the light source module 101 is connected to other modules using a standardized interface, different types of light sources 1011, collimating lens groups 1012 and beam splitting reflectors 1013 can be selected for configuration according to actual needs. This flexibility enables the PGU optical machine to adapt to different application scenarios and needs.

[0138] Since the light source module 101 adopts a detachable connection design, when the PGU optical machine fails or needs to be upgraded, the light source module 101 can be easily replaced or upgraded without disassembling and reassembling the entire PGU optical machine, which greatly reduces the cost and difficulty of maintenance and upgrading.

[0139] In some examples of the present application, the lighting modulation module 102 also includes a light homogenizing element, a reflective element, a lens group and a prism arranged in sequence along the transmission direction of the collimated light, and the light homogenizing element, the reflective element, the lens group and the prism are arranged within the main body; wherein the light homogenizing element is located on the reflection path of the beam splitter 1013.

[0140] In this example of the present application, the illumination modulation module 102 is an integrated module including a plurality of key optical elements, which are arranged in sequence along the transmission direction of the collimated light and have an alignment relationship with the beam splitter reflector 1013 in the light source module 101 .

[0141] The illumination modulation module 102 includes a light homogenizing element, which is located on the reflection path of the beam splitter reflector 1013 in the light source module 101 and is used to homogenize the light reflected by the beam splitter reflector 1013 to ensure that the light maintains consistency and stability in subsequent optical processing.

[0142] The light homogenizing element is, for example, a compound eye or a light rod.

[0143] The illumination modulation module 102 includes a reflective element, which is used to change the transmission direction of the light and guide it to the lens group for further processing.

[0144] The illumination modulation module 102 includes a lens group, which may be composed of a plurality of lenses and is used to focus, magnify or reduce light, so as to adjust the size and clarity of an image.

[0145] The illumination modulation module 102 includes a prism. The prism may be an RTIR prism or a PBS prism. The type of prism is related to the image processing chip in the image processing chip module 103 provided later. The prism controls the propagation direction of light through total reflection to achieve light polarization / focusing.

[0146] Regarding the alignment of the illumination modulation module 102 and the light source module 101:

[0147] The beam splitter reflector 1013 is located in the light source module 101 and is responsible for reflecting the light emitted by the light source 1011 to the illumination modulation module 102 in a certain proportion. Through precise design, it is ensured that the light reflected by the beam splitter reflector 1013 can accurately enter the light homogenizing element of the illumination modulation module 102. This design not only ensures the efficiency of light transmission, but also ensures the consistency and stability of image quality.

[0148] In this example of the present application, by integrating the key optical elements such as the light homogenizing element, the reflective element, the lens group and the prism into the lighting modulation module 102 and aligning them with the light source module 101, the loss of light during transmission can be minimized and the optical efficiency can be improved. The addition of the light homogenizing element ensures that the light has a uniform light intensity distribution before entering the lens group, avoiding problems such as image distortion or uneven brightness caused by uneven light. The precise design of the lens group ensures the clarity and dimensional accuracy of the image, making the projected image more delicate and realistic.

[0149] The modular design allows the lighting modulation module 102 to be replaced or maintained as an independent unit, reducing the complexity and maintenance cost of the overall optical machine. When the performance of the PGU optical machine needs to be upgraded or new functions need to be added, only the corresponding module needs to be replaced or upgraded, without the need to redesign and manufacture the entire PGU optical machine. This design provides more possibilities and flexibility for the future development of the PGU optical machine.

[0150] In some examples of this application, see Figure 1 and Figure 3 The image processing chip module 103 includes an image modulation chip and a mounting bracket, the image modulation chip is arranged on the mounting bracket, and the mounting bracket is detachably connected to the third standardized interface.

[0151] In this example of the present application, the image processing chip module 103 is designed as a modular component.

[0152] The image processing chip module 103 includes an image modulation chip, which can be one of a DLP chip (digital light processing), an LCOS chip (liquid crystal on silicon chip) or an LBS chip (laser beam scanning). These technologies each have unique characteristics and advantages, and can provide high-resolution, high-contrast and high-color saturation image projection according to different application requirements.

[0153] The image processing chip module 103 also includes a mounting bracket, which is used to fix and support the image modulation chip to ensure its stability and reliability during operation. The mounting bracket is designed with a connection structure that matches the third standardized interface to achieve fast and reliable connection with other modules in the PGU optical machine.

[0154] In the present application, the image processing chip module 103 is an independent module, which is detachably connected to the illumination modulation module 102 through a third standardized interface. This modular design allows different types of image processing chip modules 103 (different types refer to the types of image processing chips, for example) to be easily integrated into the PGU optical machine, thereby improving the flexibility and scalability of the PGU optical machine.

[0155] By adopting the modular image processing chip module 103, the PGU optical engine can quickly replace or upgrade the image modulation chip according to different application requirements. This flexibility enables the PGU optical engine to adapt to a wider range of market needs and meet the personalized customization requirements of different customers.

[0156] When the image modulation chip fails or needs to be upgraded, only the image processing chip module 103 or the internal image modulation chip needs to be replaced without overhauling the entire PGU optical machine. This design greatly reduces the maintenance cost and time cost of the system.

[0157] As the core component of image processing, the performance of the image modulation chip directly determines the image quality of the PGU optical engine. By integrating image modulation chips with advanced technologies such as DLP, LCOS or LBS, the PGU optical engine can provide higher resolution, higher contrast and richer color performance, thus meeting users' needs for high-quality images.

[0158] In some examples of this application, see Figure 3 and Figure 4 The imaging modulation module 105 includes a lens barrel and at least one lens detachably connected to the lens barrel; the lens barrel is detachably connected to the fifth standardized interface; the imaging modulation module 105 is used to receive the light with image information emitted by the image processing chip module 103 to form a projection picture.

[0159] The lens barrel is the basic structure of the imaging modulation module 105 and is used to support and position the lens.

[0160] The lens is an optical element detachably connected to the lens barrel. At least one lens is provided, but there may be multiple lenses according to the needs, and is used to focus, diverge, correct aberrations, etc. on light.

[0161] The detachable design of the lens facilitates replacement of lenses with different focal lengths or functions to meet different projection requirements or perform maintenance.

[0162] In this example of the present application, the lens barrel is detachably connected to the side of the body of the illumination modulation module 102 via a fifth standardized interface. The standardized interface ensures compatibility and interchangeability between different functional modules.

[0163] The image processing chip module 103 is an upstream optical component of the imaging modulation module 105 and is responsible for generating light with image information, which is a key factor in ultimately achieving imaging.

[0164] The modular design of the imaging modulation module 105 makes the entire system more flexible. Users can easily replace or upgrade lenses as needed without having to make large-scale changes to the entire system.

[0165] By selecting the appropriate lens combination, fine modulation of the projected image can be achieved, such as adjusting the focus to obtain a clear image, or correcting aberrations to reduce image distortion.

[0166] The modular design in this application reduces maintenance costs. If a part such as a lens is damaged or outdated, only that part needs to be replaced without replacing the entire module.

[0167] Due to the detachability of the lens and the use of standardized interfaces, the imaging modulation module 105 can adapt to a variety of different projection scenarios and requirements, such as projection screens of different sizes, different projection distances, different ambient lighting conditions, etc.

[0168] In some examples of the present application, the connection method at the standardized interface includes at least one of mechanical connection or glue dispensing connection; wherein the mechanical connection includes a positioning pin or a machine screw connection.

[0169] This example of the present application details the specific implementation method of the connection method at the standardized interface (which is a detachable connection method), including mechanical connection and / or glue dispensing connection, and points out the positioning pin or machine screw connection in the mechanical connection.

[0170] (1) Mechanical connections include dowel pins and machine screws.

[0171] Among them, the machine screw provides a fastening force through a threaded connection. This connection method is both reliable and easy to operate, and is convenient for the installation and removal of the lens.

[0172] (2) Glue dispensing connection:

[0173] Dispensing involves applying a specific glue or adhesive to the connection interface and allowing it to cure to form a strong connection. In optical applications, dispensing can provide additional sealing and stability.

[0174] In one example, the imaging modulation module 105 is assembled stably and flexibly with the side of the main body of the illumination modulation module 102 using positioning pins or machine screws. This design gives the PGU optical machine great flexibility and scalability, enabling the development of a variety of lenses and structural parts. Through standardized interfaces, these modules can be assembled quickly and accurately, making it easy to iterate and upgrade the modules. This design fully meets the user's diverse needs for parameters such as image size, projection distance, and eccentricity. It is particularly worth mentioning that by simply adjusting the upper and lower positions of the imaging modulation module 105, the entire PGU optical machine can achieve eccentricity compatibility from -100% to 100%, demonstrating excellent performance adaptability.

[0175] In some examples of the present application, the internal structure of each functional module in the light source module 101, the lighting modulation module 102, the image processing chip module 103, the light sensing module 104, the imaging modulation module 105, the first heat dissipation module 106, the control circuit module 107 and the second heat dissipation module 108 is configured to be split into sub-modules, and each of the sub-modules has a reserved standardized interface.

[0176] The present application also designs that each functional module is designed to be composed of corresponding sub-modules, and each sub-module has a reserved standardized interface, which ensures the compatibility and interchangeability between different sub-modules.

[0177] Since each functional module can be split into sub-modules and the sub-modules are connected through standardized interfaces, the entire PGU optical machine has a high degree of flexibility. Users can select or replace different sub-modules according to specific needs to optimize the optical machine performance or meet specific application scenarios.

[0178] Standardized interfaces make submodule replacement and upgrading simple and fast. When a submodule fails or becomes obsolete, it can be easily replaced with a new or more advanced submodule without replacing the entire functional module.

[0179] The modular design proposed in this application makes the development and iteration of PGU optical engines faster.

[0180] According to another embodiment of the present application, a vehicle-mounted HUD device is provided, and the vehicle-mounted HUD device includes: a vehicle body and the modular PGU optical machine as described above.

[0181] According to the embodiments of the present application, the modular PGU optical engine of the present application can be applied in a vehicle-mounted HUD device.

[0182] For the vehicle-mounted HUD device, in the light source module 101, a laser diode is selected to ensure that the image output has high brightness and high contrast, bringing a clearer and more realistic visual experience to the user. The image processing chip module 103 uses a DLP chip, which is known for its high-precision image projection capability and can accurately present every detail. The control circuit module 107 has a built-in high-performance microprocessor to ensure that the image information is processed in a timely manner, thereby improving the overall response speed of the entire device.

[0183] In addition, it is equipped with two heat dissipation modules, which can combine the heat dissipation advantages of heat pipes and fans to ensure that the PGU optical machine can operate stably for a long time in a high temperature environment.

[0184] It is worth mentioning that the modular design of the PGU optical engine makes it easy to upgrade the functions of the vehicle-mounted HUD device by simply replacing the corresponding functional modules, which greatly improves the scalability and upgrade convenience of the entire vehicle-mounted HUD device.

[0185] According to another embodiment of the present application, a projection device is provided, and the projection device includes: a device housing and the modular PGU optical machine as described above.

[0186] The modular PGU optical machine provided in the embodiment of the present application includes but is not limited to being applied to a vehicle-mounted HUD device, and can also be a PGU optical machine designed for commercial advertising display. The PGU optical machine can select an OLED light source on the light source module 101 to meet the high requirements of color saturation for advertising display, making the advertising picture more vivid and vivid. The image processing chip module 103 uses an LCOS chip, which can significantly improve the color expression and make the advertising content more fascinating. In addition to the basic control functions, the control circuit module 107 also specifically adds a wireless transmission function. This design makes it more convenient and quick to remotely update the advertising content. In terms of the heat dissipation module, a liquid cooling system is adopted. With its efficient heat dissipation capacity, the liquid cooling system can well adapt to the needs of continuous and long-term operation in a commercial display environment. The projection device has shown excellent color reproduction in actual deployment, bringing a new visual experience to commercial advertising display.

[0187] The specific implementation methods of the vehicle-mounted HUD device and projection equipment in the embodiments of the present application can refer to the various embodiments of the above-mentioned modular PGU optical machine, and therefore at least have all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0188] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0189] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A modular PGU optical machine, characterized in that: include: A light source module (101) capable of emitting collimated light; An illumination modulation module (102) capable of homogenizing the collimated light; An image processing chip module (103) is used to receive the light emitted by the illumination modulation module (102) for display; An imaging modulation module (105) is used to project the light emitted by the image processing chip module (103) onto a display surface to form a projection picture; The light source module (101), the image processing chip module (103) and the imaging modulation module (105) can all be detachably connected to corresponding standardized interfaces reserved on the illumination modulation module (102).

2. The modular PGU optical machine according to claim 1, characterized in that: The lighting modulation module (102) comprises a main body, the main body comprising a first surface and a second surface that are separated from each other, and a side surface connecting the first surface and the second surface; The light source module (101) is arranged on the first surface and is detachably connected to a first standardized interface reserved on the first surface; The image processing chip module (103) is arranged on the second surface and is detachably connected to a third standardized interface reserved on the second surface; The imaging modulation module (105) is arranged on the side surface and is detachably connected to a fifth standardized interface reserved on the side surface.

3. The modular PGU optical machine according to claim 2, characterized in that: The modular PGU optical machine also includes a light sensing module (104) and a control circuit module (107); The light sensing module (104) is arranged on the side surface and is detachably connected to a fourth standardized interface reserved on the side surface, the light sensing module (104) comprises a light sensing chip, the center of the light sensing chip is located on the main optical axis of the light emitted by the illumination modulation module (102); The control circuit module (107) is arranged on the second surface and is detachably connected to a seventh standardized interface reserved on the second surface, and the control circuit module (107) and the image processing chip module (103) arranged on the second surface are arranged at intervals.

4. The modular PGU optical machine according to claim 3, characterized in that: The control circuit module (107) is respectively connected to the light source module (101), the image processing chip module (103) and the light sensing module (104); The light sensing module (104) is capable of receiving the light emitted by the lighting modulation module (102), converting the light into an electrical signal and then feeding it back to the control circuit module (107); The control circuit module (107) determines whether the projection image has color cast according to the electrical signal, and can perform color cast correction.

5. The modular PGU optical machine according to claim 3, characterized in that: The modular PGU optical machine also includes a first heat dissipation module (106); The first heat dissipation module (106) is arranged on the second surface and is detachably connected to a sixth standardized interface reserved on the second surface; The first heat dissipation module (106) is located in the interval between the control circuit module (107) and the image processing chip module (103).

6. The modular PGU optical machine according to claim 5, characterized in that: The modular PGU optical machine also includes a second heat dissipation module (108); The second heat dissipation module (108) is arranged on a side of the light source module (101) away from the illumination modulation module (102), and is detachably connected to an eighth standardized interface reserved on the light source module (101).

7. The modular PGU optical machine according to claim 6, characterized in that: The light source module (101) comprises a fixed bracket (1014), and a light source (1011), a collimating lens group (1012), and a beam splitting reflector (1013) arranged in sequence along the light transmission direction; The light source (1011), the collimating lens group (1012), the beam splitting reflector (1013) and the eighth standardized interface are all arranged on the fixing bracket (1014); The fixing bracket (1014) is detachably connected to the first standardized interface.

8. The modular PGU optical machine according to claim 7, characterized in that: The lighting modulation module (102) further comprises a light homogenizing element, a reflective element, a lens group and a prism which are sequentially arranged along the transmission direction of the collimated light, and the light homogenizing element, the reflective element, the lens group and the prism are arranged inside the main body; Wherein, the light homogenizing element is located on the reflection path of the beam splitting reflector (1013).

9. The modular PGU optical machine according to claim 2, characterized in that: The image processing chip module (103) comprises an image modulation chip and a mounting bracket, the image modulation chip is arranged on the mounting bracket, and the mounting bracket is detachably connected to the third standardized interface.

10. The modular PGU optical machine according to claim 2, characterized in that: The imaging modulation module (105) comprises a lens barrel and at least one lens detachably connected to the lens barrel; The lens barrel is detachably connected to the fifth standardized interface; The imaging modulation module (105) is used to receive the light with image information emitted by the image processing chip module (103) to form a projection picture.

11. The modular PGU optical machine according to any one of claims 1 to 10, characterized in that: The connection method at the standardized interface includes at least one of mechanical connection or glue dispensing connection; wherein the mechanical connection includes a positioning pin, a machine screw or a snap-on connection.

12. The modular PGU optical machine according to claim 6, characterized in that: The internal structure of each functional module among the light source module (101), the lighting modulation module (102), the image processing chip module (103), the light sensing module (104), the imaging modulation module (105), the first heat dissipation module (106), the control circuit module (107) and the second heat dissipation module (108) is configured to be split into sub-modules, and each of the sub-modules is provided with a reserved standardized interface.

13. A vehicle-mounted HUD device, characterized in that: include: Vehicle body; and A modular PGU optical machine as described in any one of claims 1-12.

14. A projection device, characterized in that: include: Equipment housing; and A modular PGU optical machine as described in any one of claims 1-12.

Images