Modular pgu light engine, vehicle-mounted hud device and projection equipment

Abstract

Embodiments of the present application provide a modular PGU light machine, a vehicle-mounted HUD device and a projection device; wherein the modular 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 homogenizing the collimated light; the image processing chip module is used for receiving the light emitted by the illumination modulation module for display; the imaging modulation module is used for projecting the light emitted by the image processing chip module onto a display surface to form a projection picture; the light source module, the image processing chip module and the imaging modulation module are detachably connected to the corresponding standardized interfaces reserved on the illumination modulation module.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of projection display, and more particularly, to a modular PGU light machine, a vehicle-mounted HUD device and a projection device. BACKGROUND

[0002] In the field of projection display, the PGU light machine system is a key component for projecting image information to the windshield or a dedicated screen, and its performance directly affects the display effect of the entire head-up display system (HUD) or augmented reality system (AR). Traditional PGU light machine system design adopts a non-standard structure, in which the optical, electronic and mechanical components are fixedly matched, which greatly limits the upgrade, maintenance and individual customization of the PGU light machine system, and is not conducive to cost control and rapid iteration. SUMMARY

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

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

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

[0006] an illumination modulation module for homogenizing the collimated light;

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

[0008] an imaging modulation module 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 are detachably connected to the corresponding standardized interfaces reserved on the illumination modulation module.

[0010] Optionally, the illumination modulation module comprises a body portion, the body portion comprising a first surface and a second surface facing away from each other, and a side surface connecting the first surface and the second surface;

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

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

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

[0014] Optionally, the modular PGU light machine further comprises a light sensing module and a control circuit module.

[0015] The light sensing module is arranged on the side surface and detachably connected with the fourth standardized interface reserved on the side surface, and the light sensing module comprises a light sensing chip, the center of which 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 detachably connected with the seventh standardized interface reserved on the second surface, and the control circuit module is arranged in a spaced manner with the image processing chip module arranged on the second surface.

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

[0018] The light sensing module can receive the light emitted by the illumination modulation module, convert it into an electrical signal and then feed it back to the control circuit module.

[0019] The control circuit module can judge whether the projected picture is color casted according to the electrical signal and can correct the color cast.

[0020] Optionally, the modular PGU light machine further comprises a first heat dissipation module.

[0021] The first heat dissipation module is arranged on the second surface and detachably connected with the sixth standardized interface reserved on the second surface.

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

[0023] Optionally, the modular PGU light machine further comprises a second heat dissipation module.

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

[0025] Optionally, the light source module comprises a fixed support, a light source, a collimating mirror group and a light splitting mirror arranged in sequence along the light transmission direction.

[0026] The light source, the collimating mirror group, the light splitting mirror and the eighth standardized interface are all arranged on the fixed support.

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

[0028] Optionally, the illumination modulation module further comprises, in sequence along the transmission direction of the collimated light, a light homogenizing element, a reflecting element, a lens group, and a prism, and the light homogenizing element, the reflecting element, the lens group, and the prism are arranged in the body portion.

[0029] The light homogenizing element is located on the reflection path of the light splitting mirror.

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

[0031] Optionally, the imaging modulation module comprises a lens barrel and at least one lens detachably connected in the lens barrel.

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

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

[0034] Optionally, the connection mode at the standardized interface comprises at least one of a mechanical connection mode or a point-gluing connection mode, and the mechanical connection mode comprises a positioning pin, a toothed screw, or a buckle connection.

[0035] Optionally, the internal structure of each functional module of the light source module, the illumination 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 can be split into sub-modules, and each sub-module is provided with a standardized interface.

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

[0037] a vehicle body; and

[0038] The modular PGU light machine according to the first aspect.

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

[0040] a device shell; and

[0041] The modular PGU light machine according to the first aspect.

[0042] The present application has the following beneficial effects:

[0043] Embodiments of the present application aim to provide a modularly designed PGU light machine to solve the problems of difficult maintenance, long iteration period and high cost in traditional PGU light machines. The modularly designed PGU light machine system provided by the embodiments of the present application includes a light source module, an illumination modulation module, an image processing chip module, an imaging modulation module and the like, and the functional modules are detachably connected through standardized interfaces, ensuring the independence and interchangeability between different functional modules. The embodiments of the present application provide a highly modular, easy-to-upgrade and maintain PGU light machine design, which can meet the needs of different application scenarios and reduce product iteration costs.

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

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

[0046] Figure 1 A structural schematic diagram of the modularly designed PGU light machine provided by the embodiments of the present application;

[0047] Figure 2 A structural schematic diagram of the light source module and the illumination modulation module provided by the embodiments of the present application;

[0048] Figure 3 A structural schematic diagram of the image processing chip module and the illumination modulation module provided by the embodiments of the present application;

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

[0050] Explanation of reference signs:

[0051] 101, light source module; 1011, light source; 1012, collimating mirror group; 1013, light splitting mirror; 1014, fixed support;

[0052] 102, illumination modulation module;

[0053] 103, image processing chip module;

[0054] 104, light sensing module;

[0055] 105, imaging modulation module;

[0056] 106, first heat dissipation module;

[0057] 107. control circuit module

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

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

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

[0061] Techniques and equipment known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0062] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0063] It should be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that, unless otherwise specifically stated, the drawings are not to scale.

[0064] The modular PGU light engine, the vehicle-mounted HUD device and the projection equipment provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0065] According to one embodiment of the present application, a modular PGU light engine is provided, referring to Figures 1 to 4 , the modular PGU light engine comprises 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 is capable of emitting collimated light; the illumination modulation module 102 is used for homogenizing the collimated light; the image processing chip module 103 is used for receiving the light emitted by the illumination modulation module 102 for display; the imaging modulation module 105 is used for projecting 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 are detachably connected to the corresponding standardized interfaces reserved on the illumination modulation module 102.

[0066] The modular PGU (projection generating unit) optical machine provided in the embodiments of the present application comprises a plurality of functional modules. The present application divides the whole PGU optical machine into a plurality of 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, as shown in Figure 1 . This design enables independent development and optimization between the functional modules, thereby improving the maintainability and upgradeability of the whole PGU optical machine.

[0067] In the modular PGU optical machine provided in the embodiments 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, is 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 the manufacturer or user can quickly replace or upgrade the corresponding functional module according to actual needs, thereby reducing the maintenance cost and time.

[0068] The modular design provided in the embodiments of the present application enables the PGU optical machine to have higher flexibility and scalability. For example, the user can select light source modules 101 (such as laser diodes, light-emitting diodes, etc.), image processing chip modules 103 (such as DLP, LCoS, LBS, etc.), and imaging modulation modules 105 according to different application scenarios and needs, to meet different projection display needs.

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

[0070] In the modular PGU optical machine provided in the embodiments of the present application, the combination of standardized interface and modular design simplifies the assembly and maintenance process of the whole PGU optical machine. The design of the present application realizes the replacement or upgrade of functional modules through simple disassembly operation, without the need for complex disassembly and recombination of the whole PGU optical machine.

[0071] The design of the modular PGU optical machine provided in the embodiments of the present application can reduce the cost and iteration period. Specifically, the modular design enables independent development and production of each functional module, thereby reducing the research and production cost. At the same time, due to the independence and interchangeability between the functional modules, the product iteration period can be shortened without replacing the whole PGU optical machine.

[0072] In the modular PGU optical machine provided in the embodiments of the present application, the connection mode at the standardized interface is set as detachable connection, for example, positioning pin, screw or buckle connection, or point gluing connection, or a combination of multiple assembly modes.

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

[0074] In summary, the embodiments of the present application describe a modular PGU optical machine, which has higher flexibility, scalability, optical performance and lower cost and iteration period through modular design and application of standardized interfaces. These technical effects make the PGU optical machine of the present application have wide application prospect and market competitive advantage in the field of projection display.

[0075] In some examples of the present application, referring to 1 and Figure 2 The illumination modulation module 102 includes a body part including a first surface and a second surface facing away 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 detachably connected with the first standardized interface reserved on the first surface; the image processing chip module 103 is arranged on the second surface and detachably connected with the third standardized interface reserved on the second surface; and the imaging modulation module 105 is arranged on the side surface and detachably connected with the fifth standardized interface reserved on the side surface.

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

[0077] In the modular PGU light machine provided in the embodiments of the present application, the illumination modulation module 102, especially the body part thereof, bears 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 body part through the first, third and fifth standardized interfaces reserved at different positions on the body part, realizing stable and flexible detachable connection with the body part. Such a standardized interface design not only ensures good docking between functional modules, but also greatly enhances the interchangeability of the whole PGU light machine, making the PGU light machine more convenient and efficient in upgrading, maintenance and even personalized customization, 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 through 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 requiring high-brightness output, a higher-performance light source module 101 can be selected; and for application scenarios requiring high-resolution imaging, a higher-precision image processing chip module 103 can be selected.

[0081] Such flexibility not only meets current application requirements, but also provides possibilities for future technology upgrades and expansion. With the continuous progress of technology, the entire PGU light machine can be easily upgraded by replacing modules without the need for large-scale reconstruction or replacement of the entire PGU light machine.

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

[0083] The illumination modulation module 102 in the present application and its connection mode with the light source module 101, the image processing chip module 103 and the imaging modulation module 105 simplify the assembly and debugging process through the design of high modularity, flexibility and expandability, improve the stability and reliability of the PGU light machine, and provide strong support for the upgrading, maintenance and personalized customization of the PGU light machine.

[0084] In some examples of the present application, see Figure 1The modular PGU light machine further comprises a light sensing module 104 and a control circuit module 107. The light sensing module 104 is arranged on the side surface and detachably connected with the fourth standardized interface reserved on the side surface. The light sensing module 104 comprises 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 detachably connected with the seventh standardized interface reserved on the second surface. The control circuit module 107 and the image processing chip module 103 arranged on the second surface are arranged in a spaced manner.

[0085] In this example of the present application, the modular PGU light machine realizes more precise and efficient light machine design and function integration by adding the light sensing module 104 and the control circuit module 107 and further optimizing the layout and connection mode thereof.

[0086] The arrangement of the light sensing module 104 and the connection thereof 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 feed back the light information to the control circuit module 107 in a timely manner by monitoring the received light, so as to realize real-time correction of the projection image quality. This is of great significance to improve the image quality and stability of the projection device (such as a vehicle-mounted HUD device and a projection equipment), especially in extreme environments or long-time running conditions, so as to maintain the stability and consistency of the projection picture.

[0089] In this example of the present application, referring to Figure 1 The control circuit module 107 and the image processing chip module 103 are detachably arranged on the second surface of the body portion of the illumination modulation module 102. Notably, the control circuit module 107 and the image processing chip module 103 are spaced apart from each other. This spaced arrangement is conducive to heat dissipation of the image processing chip module 103 and the control circuit module 107, and in particular, avoids direct heat conduction from the image processing chip module 103 to the control circuit module 107. This spaced arrangement in this example of the present application is conducive to improving the optical stability and reliability of the PGU shutdown.

[0090] In the design of the present application, the light sensing module 104 and the control circuit module 107 are detachably connected to the body of the illumination modulation module 102 (specifically, to the second surface thereof) through standardized interfaces, which makes the maintenance and upgrade of the two functional modules more convenient and efficient.

[0091] For example, when a functional module in the light sensing module 104 and the control circuit module 107 fails or needs to be upgraded, the new functional module can be quickly detached and replaced without the need for large-scale disassembly of the entire PGU light machine.

[0092] By integrating the light sensing module 104 and the control circuit module 107 into the modular PGU light machine and optimizing their layout, the overall performance and stability of the PGU light machine are improved, and the integration level of the PGU light machine is also enhanced.

[0093] In some examples 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, respectively. The light sensing module 104 can receive light emitted by the illumination modulation module 102, convert it into an electrical signal, and feed it back to the control circuit module 107. The control circuit module 107 can determine whether the projected image has color cast based on the electrical signal and perform 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 the flow of information and collaborative work between the modules inside the PGU light 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 the necessary timing signals and control instructions to the image processing chip module 103, ensuring 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 light from the illumination modulation module 102 (the illumination modulation module 102 receives collimated light from the light source module 101), which has been subjected to preliminary modulation and uniform light 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 an electrical signal. These electrical signals not only contain the intensity information of the light, but also contain the color component information of the light. The control circuit module 107 can accurately determine whether the projection image projected by the imaging modulation module 105 has color cast by analyzing these electrical signals.

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

[0104] When the control circuit module 107 detects that the projection image has 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, etc. to further improve the color performance of the projection image.

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

[0106] The modular PGU light machine design provided by the present application enables the connection and cooperative work between the functional modules, making the entire PGU light machine more stable and reliable, and reducing the failure rate.

[0107] In addition, due to the use of standardized interface design between functional modules, the PGU light machine is more convenient and efficient when upgrading and maintaining.

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

[0109] In some examples of the present application, see Figure 1, the modular PGU light machine further comprises a first heat dissipation module 106; the first heat dissipation module 106 is arranged on the second surface and detachably connected with the 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 light machine, which is a module designed for heat dissipation of the image processing chip module 103. The first heat dissipation module 106 is detachably connected with the second surface of the body of the illumination modulation module 102 through the 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 heating under high load. The image processing chip module 103 is one of the core optical elements of the PGU light machine, and its performance directly determines the quality of the projection picture. Through a special heat dissipation module, the image processing chip module 103 can work within an appropriate temperature range, thereby maintaining its optimal performance.

[0112] In this application, the first heat dissipation module 106 also adopts a modular design, so that it can be easily integrated or detached with other modules in the modular PGU light machine. This design not only simplifies the installation and maintenance process of the heat dissipation system, but also improves the upgradability and expandability of the entire PGU light machine. If the heat dissipation module needs to be replaced or upgraded later, it can be simply replaced with an old heat dissipation module, without the need for large-scale modification of the entire PGU light machine.

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

[0114] According to the examples of the present application, efficient heat dissipation management helps to prolong the service life of the image processing chip module 103 and reduce performance degradation or failure caused by overheating. This not only improves the projection quality and stability of the PGU light machine, but also reduces the maintenance and replacement costs of the user.

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

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

[0117] In some examples of the present application, referring to Figure 1 , the modular PGU light machine further comprises a second heat dissipation module 108; the second heat dissipation module 108 is arranged on the side of the light source module 101 away from the illumination modulation module 102 and is detachably connected with the eighth standardized interface reserved on the light source module 101.

[0118] In this example of the present application, referring to Figure 1 , a second heat dissipation module 108 is introduced in the modular PGU light machine, which is different from the first heat dissipation module 106 in the above example. The second heat dissipation module 108 is specially designed for the light source module 101 and is detachably connected with 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 with the light source module 101 through the standardized interface, which greatly enhances the modularity of the PGU light machine.

[0120] Modular design allows the second heat dissipation module 108 to be customized or replaced according to different characteristics of the light source module (such as light source type, power, etc.), thereby meeting various heat dissipation needs. The adoption of standardized interfaces simplifies the replacement process of the heat dissipation module, reduces maintenance costs, and improves the maintainability and flexibility of the PGU light 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, which ensures that the light source module 101 can directly and efficiently dissipate 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 heat generation characteristics of the three-color light source, 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 light machine.

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

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

[0126] In some examples of the present application, referring to Figure 1 and Figure 2 , the light source module 101 includes a fixed support 1014, and a light source 1011, a collimating mirror group 1012 and a light splitting mirror 1013 arranged in sequence along the light transmission direction; the light source 1011, the collimating mirror group 1012, the light splitting mirror 1013 and the eighth standardized interface are all arranged on the fixed support 1014; the fixed support 1014 is detachably connected to the first standardized interface.

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

[0128] Specifically, referring to Figure 2 , the light source module 101 is designed as a highly integrated and modular component, which includes a fixed support 1014, and a light source 1011, a collimating mirror group 1012 and a light splitting mirror 1013 arranged in sequence along the light transmission direction.

[0129] The fixed support 1014 serves as the basic support structure of the light source module 101, and is responsible for bearing and fixing the light source 1011, the collimating mirror group 1012 and the light splitting mirror 1013. At the same time, an eighth standardized interface is also reserved on the fixed support 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), etc. The light source 1011 can also be an OLED light source.

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

[0132] The number of collimating mirrors in the collimating mirror group 1012 can be designed as needed, which can be two or more.

[0133] The light-splitting mirror 1013 is used for light splitting processing of the collimated light, that is, the light is reflected and transmitted to different optical paths according to a certain proportion.

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

[0135] The eighth standardized interface is provided on the fixed support 1014 for detachable connection 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 the light source 1011, the collimating mirror group 1012, the light-splitting mirror 1013 and other key optical elements on the fixed support 1014, the light source module 101 achieves a high degree of integration. This design not only simplifies the overall structure of the PGU optical machine, but also improves the reliability and stability of the PGU optical machine. 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 uses a standardized interface to connect with other modules, different types of light sources 1011, collimating mirror groups 1012 and light-splitting mirrors 1013 can be selected for configuration according to actual needs. This flexibility allows the PGU optical machine to adapt to different application scenarios and needs.

[0138] Since the light source module 101 uses 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 the need to disassemble and reassemble the entire PGU optical machine. This greatly reduces the cost and difficulty of maintenance and upgrading.

[0139] In some examples of the present application, the illumination modulation module 102 further includes a uniform light element, a reflective element, a lens group, and a prism arranged in sequence along the collimated light transmission direction, and the uniform light element, the reflective element, the lens group, and the prism are arranged in the body part; wherein the uniform light element is located on the reflection path of the light splitting mirror 1013.

[0140] In this example of the present application, the illumination modulation module 102 is an integrated module containing multiple key optical elements arranged in sequence along the collimated light transmission direction, and has a positioning relationship with the light splitting mirror 1013 in the light source module 101.

[0141] The illumination modulation module 102 includes a uniform light element located on the reflection path of the light splitting mirror 1013 in the light source module 101, which is used to uniformly process the light reflected by the light splitting mirror 1013, ensuring consistency and stability of the light in subsequent optical processing.

[0142] Among them, the uniform light element is, for example, a compound eye or a light bar.

[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 can be composed of multiple lenses, used to focus, enlarge or reduce the light, etc., to adjust the size and clarity of the image.

[0145] The illumination modulation module 102 includes a prism. The prism can 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 arranged behind. The prism controls the direction of light propagation by total reflection, realizing light polarization / focusing.

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

[0147] The light splitting mirror 1013 is located in the light source module 101, responsible for reflecting the light emitted by the light source 1011 to the illumination modulation module 102 according to a certain proportion. Through accurate design, it is ensured that the light reflected by the light splitting mirror 1013 can accurately enter the uniform light 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 homogenizing element, the reflecting element, the lens group and the prism into the illumination 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 homogenizing element ensures that the light has a uniform intensity distribution before entering the lens group, avoiding image distortion or uneven brightness caused by uneven light.

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

[0150] In some examples of the present application, referring to 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) 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 for fixing and supporting the image modulation chip, ensuring its stability and reliability during operation. The mounting bracket is designed with a connection structure matching the third standardized interface, achieving quick and reliable connection with other modules in the PGU optical engine.

[0154] In the present application, the image processing chip module 103 is a separate module that 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 type of image processing chip) to be easily integrated into the PGU light machine, improving the flexibility and scalability of the PGU light machine.

[0155] By using a modular image processing chip module 103, the PGU light machine can quickly replace or upgrade the image modulation chip according to different application requirements. This flexibility allows the PGU light machine to adapt to a wider range of market demands and meet the individual 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 the need for major repairs of the entire PGU light machine. This design greatly reduces the maintenance cost and time cost of the system.

[0157] The image modulation chip is the core component of image processing, and its performance directly determines the image quality of the PGU light machine. By integrating advanced image modulation chips such as DLP, LCOS, or LBS, the PGU light machine can provide higher resolution, higher contrast, and richer color performance, thus meeting the user's demand for high-quality images.

[0158] In some examples of the present application, referring to Figure 3 and Figure 4 , the imaging modulation module 105 includes a lens barrel and at least one lens detachably connected inside 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, used to support and position the lens.

[0160] The lens is an optical element detachably connected inside the lens barrel, at least one is provided, but there can be multiple according to the needs, used for focusing, diverging, correcting aberration, etc. operation on light.

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

[0162] In this example of the present application, the lens barrel is detachably connected to the side of the body part of the illumination modulation module 102 through the fifth standardized interface. The standardized interface ensures the 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, responsible for generating light with image information, which is the key factor that ultimately enables 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 major changes to the entire system.

[0165] By selecting the appropriate lens combination, fine-tuning of the projected image can be achieved, such as adjusting the focal length 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, it can be replaced without the need to replace 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 needs, such as different sizes of projection screens, different projection distances, different environmental lighting conditions, etc.

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

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

[0170] (1) Mechanical connection includes positioning pin and spline screw.

[0171] Wherein, the spline screw provides fastening force through threaded connection, which is reliable and easy to operate, facilitating the installation and removal of the lens.

[0172] (2) Dispensing connection:

[0173] Dispensing involves applying a specific glue or adhesive to the connection interface, which forms a firm connection after it hardens. In optical applications, dispensing can provide additional sealing and stability.

[0174] In one example, the imaging modulation module 105 is stably and flexibly assembled with the side of the body part of the illumination modulation module 102 by using a positioning pin or a toothed screw. This design gives the PGU optical engine great flexibility and scalability, enabling the development of a variety of lenses and structural components. Through a standardized interface, these modules can be quickly and accurately assembled, making it easy to iteratively upgrade the modules. This design fully meets the user's diverse needs for image size, projection distance, and off-axis parameters. In particular, by simply adjusting the up and down position of the imaging modulation module 105, the entire PGU optical engine can achieve -100% to 100% off-axis compatibility, demonstrating excellent performance adaptability.

[0175] In some examples of the present application, the internal structure of each functional module of the light source module 101, the illumination 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 designed to be able to be split into sub-modules, and each sub-module is provided with a standardized interface.

[0176] In the present application, each functional module is designed to be composed of corresponding sub-modules, and each sub-module is provided with a 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 engine has high flexibility. Users can select or replace different sub-modules according to specific needs to optimize the performance of the optical engine or meet specific application scenarios.

[0178] The standardized interface makes it easy and fast to replace and upgrade sub-modules. When a sub-module fails or becomes obsolete, it can be easily replaced with a new or more advanced sub-module without replacing the entire functional module.

[0179] The modular design proposed in the present application makes the development and iteration of the PGU optical engine more rapid.

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

[0181] According to an embodiment 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 terms of the light source module 101, a laser diode is selected to ensure that the image output has high brightness and high contrast, providing users with a more clear and realistic visual experience. The image processing chip module 103 uses a DLP chip, which is known for its high-precision image projection capabilities and can accurately present every detail. The control circuit module 107 is built-in with a high-performance microprocessor, ensuring that image information is processed in a timely manner, thereby improving the overall response speed of the entire device.

[0183] In addition, two heat dissipation modules are also provided, which can combine the heat dissipation advantages of heat pipes and fans to ensure that the PGU light 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 light machine makes it easy to upgrade the function of the vehicle-mounted HUD device by simply replacing the corresponding functional module, greatly improving the expandability and upgrade convenience of the entire vehicle-mounted HUD device.

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

[0186] The modular PGU light machine provided by the embodiments of the present application includes but is not limited to being applied to a vehicle-mounted HUD device, and can also be a PGU light machine designed for commercial advertising display. The PGU light 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 lively. The image processing chip module 103 uses an LCOS chip, which can significantly improve the color performance and make the advertising content more attractive. The control circuit module 107 has a wireless transmission function in addition to the basic control function, which makes it more convenient and fast to update the advertising content remotely. In terms of the heat dissipation module, a liquid cooling system is used, which can well adapt to the needs of continuous long-time operation in a commercial display environment due to its high-efficiency heat dissipation capability. The projection device exhibits excellent color restoration in actual deployment, bringing a new visual experience to commercial advertising display.

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

[0188] The above embodiments mainly describe the differences between the various embodiments, and the optimization features different between the various embodiments can be combined to form a better embodiment without contradiction. For the sake of brevity, details are not repeated here.

[0189] Although some specific embodiments of the present application have been described in detail by way of example with reference to the drawings, it is to be understood that the examples are for illustration only and are not intended to limit the scope of the present application. Those skilled in the art should understand that modifications can be made to the above embodiments 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 engine, characterized in that, include: The light source module (101) is capable of emitting collimated light rays; The illumination modulation module (102) is capable of homogenizing the collimated light rays; The image processing chip module (103) is used to receive the light emitted from the illumination modulation module (102) for display. An imaging modulation module (105) is used to project the light emitted from the image processing chip module (103) onto the display surface to form a projected image; 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); The connection method at the standardized interface includes at least one of mechanical connection or adhesive connection; wherein, the mechanical connection includes locating pin, machine screw or snap-fit ​​connection.

2. The modular PGU optical engine according to claim 1, characterized in that, The illumination modulation module (102) includes a body portion, which includes a first surface and a second surface that are opposite to each other, and a side surface that connects the first surface and the second surface; The light source module (101) is disposed on the first surface and is detachably connected to the first standardized interface reserved on the first surface; The image processing chip module (103) is disposed on the second surface and is detachably connected to the third standardized interface reserved on the second surface; The imaging modulation module (105) is disposed on the side and is detachably connected to the fifth standardized interface reserved on the side.

3. The modular PGU optical engine according to claim 2, characterized in that, The modular PGU optical engine also includes a light sensing module (104) and a control circuit module (107); The light sensing module (104) is disposed on the side and is detachably connected to the fourth standardized interface reserved on the side. 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 from the illumination modulation module (102). The control circuit module (107) is disposed on the second surface and is detachably connected to the seventh standardized interface reserved on the second surface. The control circuit module (107) and the image processing chip module (103) disposed on the second surface are spaced apart.

4. The modular PGU optical engine according to claim 3, characterized in that, 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), respectively. The light sensing module (104) is capable of receiving the light emitted by the illumination modulation module (102), converting it into an electrical signal, and feeding it back to the control circuit module (107). The control circuit module (107) determines whether there is a color cast in the projected image based on the electrical signal and can perform color cast correction.

5. The modular PGU optical engine according to claim 3, characterized in that, The modular PGU optical engine also includes a first heat dissipation module (106); The first heat dissipation module (106) is disposed on the second surface and is detachably connected to the 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 engine according to claim 5, characterized in that, The modular PGU optical engine also includes a second heat dissipation module (108); The second heat dissipation module (108) is located on the 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).

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

8. The modular PGU optical engine according to claim 7, characterized in that, The illumination modulation module (102) further includes a light-diffusing element, a reflective element, a lens group and a prism arranged sequentially along the collimated light transmission direction, and the light-diffusing element, the reflective element, the lens group and the prism are disposed within the main body. The light-diffusing element is located on the reflection path of the beam-splitting mirror (1013).

9. The modular PGU optical engine according to claim 2, characterized in that, The image processing chip module (103) 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.

10. The modular PGU optical engine according to claim 2, characterized in that, 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 light rays carrying image information emitted by the image processing chip module (103) in order to form a projected image.

11. The modular PGU optical engine according to claim 6, characterized in that, The internal structure of each functional module in the light source module (101), the illumination 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 able to be divided into sub-modules, and each sub-module has a reserved standardized interface.

12. A vehicle-mounted HUD device, characterized in that, include: Vehicle body; and The modular PGU optical engine as described in any one of claims 1-11.

13. A projection device, characterized in that, include: Equipment casing; and The modular PGU optical engine as described in any one of claims 1-11.

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