Automobile projection headlamp

Abstract

The utility model provides an automobile projection headlamp which comprises a light emitting module used for generating light. And the focusing lens is used for focusing the light. And the reflection cup is used for directionally reflecting the focused light. And the digital optical processor module is used for processing the light reflected by the reflection cup to obtain a projection image. And the imaging lens module is used for projecting the projection image to a preset position. Wherein the light-emitting module, the focusing lens, the reflection cup, the digital optical processor module and the imaging lens module are arranged on a specific support, the specific support is provided with a plurality of mounting holes used for being connected with automobile lens headlamp fixing holes with specific sizes, and the size of the specific support is within a preset range. The automobile projection headlamp is small in size and can be matched with the installation position of a modified automobile lamp with the general size (such as 3 inches) in the market.

Description

Technical Field

[0001] The present disclosure relates to the technical field of automobile headlights, and in particular to an automobile projection headlight. Background Art

[0002] The development of automobiles has undergone many changes, and innovation in automotive lighting is one of the most important areas in this development. The integration of modern digital projection technology with headlights has given headlights the ability to "speak," bringing them into a new era of interactive technology.

[0003] Existing automotive projection headlights are relatively large in size and volume, inconvenient to install, not highly compatible with the models on the market, and require installation under specific conditions. Utility Model Content

[0004] In view of the above problems, an embodiment of the present disclosure provides an automotive projector headlight.

[0005] One aspect of the present disclosure provides an automotive projection headlight, comprising: a light-emitting module for generating light; a focusing lens for focusing the light; a reflective cup for directionally reflecting the focused light; a digital optical processor module for processing the light reflected by the reflective cup to obtain a projected image; and an imaging lens module for projecting the projected image to a predetermined position. The light-emitting module, the focusing lens, the reflective cup, the digital optical processor module, and the imaging lens module are arranged on a specific bracket, and the specific bracket has a plurality of mounting holes for connecting to the fixing holes of the automotive lens headlight of a specific size, and the size of the specific bracket is within a preset range.

[0006] According to an embodiment of the present disclosure, the specific size is 2.5 inches to 3 inches. The length of the automotive projection headlight is 135 mm to 140 mm, the maximum width is 105 mm to 110 mm, and the maximum height is 75 mm to 85 mm.

[0007] According to an embodiment of the present disclosure, the center of the light source of the light-emitting module coincides with the optical axis of the focusing lens. The angle between the mounting plane of the light-emitting module and the mounting plane of the reflective cup is between 8° and 9°. The angle between the mounting plane of the digital optical processor module and the mounting plane of the light-emitting module is between 116° and 117°, and the mounting plane of the digital optical processor module is perpendicular to the horizontal plane. The center of the digital optical processor module coincides with the optical axis of the imaging lens module, and the mounting plane of the digital optical processor module is parallel to the mounting plane of the imaging lens module.

[0008] According to an embodiment of the present disclosure, the longest side of the digital optical processor module is 30mm-40mm, and the thickness of the digital optical processor module is 5mm-7mm. The longest side of the light-emitting module is 30mm-40mm, and the thickness of the light-emitting module is 5mm-6mm. The diameter of the focusing lens is 20mm-25mm, and the thickness of the focusing lens is 6mm-8mm. The longest side of the reflector is 40mm-45mm, and the thickness of the reflector is 8mm-9mm.

[0009] According to an embodiment of the present disclosure, an imaging lens module includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, which are sequentially stacked on each other. The fifth lens is disposed at one end of the imaging lens module close to the digital optical processor module. The first lens has a convex surface on the side away from the second lens and a concave surface on the side close to the second lens. The second lens has a convex surface on the side close to the first lens and a flat surface on the side close to the third lens. Both sides of the third lens are concave surfaces, and the curvature of the concave surface on the side close to the second lens is greater than the curvature of the concave surface on the side close to the fourth lens, and the maximum diameter of the concave surface on the side close to the second lens is smaller than the maximum diameter of the concave surface on the side close to the fourth lens. The fourth lens has a flat surface on the side close to the third lens and a convex surface on the side close to the fifth lens. Both sides of the fifth lens have convex surfaces, and the curvature of the convex surface on the side close to the fourth lens is smaller than the curvature of the convex surface on the side close to the digital optical processor module, and the maximum diameter of the convex surface on the side close to the fourth lens is smaller than the maximum diameter of the convex surface on the side close to the digital optical processor module.

[0010] According to an embodiment of the present disclosure, the diameter of any one of the first, second, third, fourth, and fifth lenses is 35 mm to 40 mm. The thickness of the first lens is 20 mm to 22 mm. The thickness of the second lens is 7 mm to 8 mm. The thickness of the third lens is 9 mm to 11 mm. The thickness of the fourth lens is 7 mm to 9 mm. The thickness of the fifth lens is 9 mm to 11 mm.

[0011] According to an embodiment of the present disclosure, the imaging lens module further includes a lens spacer and a lens spacer ring. The lens spacer is positioned between the fourth and fifth lenses, with a diameter of 35 mm to 40 mm and a thickness of 7 mm to 9 mm. The lens spacer ring is positioned on the side of the fifth lens closest to the digital optical processor module to secure the fifth lens.

[0012] According to an embodiment of the present disclosure, the automotive projection headlight further includes a fan, disposed on a side of the light-emitting module away from the focusing lens, for cooling the light-emitting module. The fan has a side length of 35 mm to 45 mm and a thickness of 10 mm to 12 mm.

[0013] According to an embodiment of the present disclosure, the fan is connected to the specific bracket through the stepped mounting hole.

[0014] According to an embodiment of the present disclosure, the automotive projection headlight further includes: a Bluetooth module for wirelessly connecting to any one of a mobile communication device and an in-vehicle Bluetooth.

[0015] According to the embodiments of the present disclosure, by centrally arranging multiple components of the automotive projection headlight on a bracket with specific dimensions and mounting holes, it can be adapted to the mounting positions of modified automotive lamps of common sizes (such as 3 inches) on the market, thereby at least partially overcoming the technical problems of large size and inconvenient installation of automotive projection headlights, thereby achieving the technical effect of miniaturizing automotive projection headlights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above contents and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0017] Figure 1 The following schematically shows the composition of a vehicle projection headlight according to an embodiment of the present disclosure;

[0018] Figure 2 Schematically showing three views of the appearance of an automotive projection headlight according to an embodiment of the present disclosure;

[0019] Figure 3 The following schematically shows the imaging principle diagram of the automotive projection headlight according to an embodiment of the present disclosure;

[0020] Figure 4A Schematically shows a superimposed structure diagram of an imaging lens module according to an embodiment of the present disclosure; Figure 4B Schematically shows a composition diagram of an imaging lens module according to an embodiment of the present disclosure;

[0021] Figure 5 The figure schematically shows the composition of an automotive projection headlight according to another embodiment of the present disclosure.

[0022] [Description of Reference Numerals]

[0023] 1-light-emitting module; 2-focusing lens; 3-reflective cup; 4-digital optical processor module; 5-imaging lens module; 51-first lens; 52-second lens; 53-third lens; 54-fourth lens; 55-fifth lens; 56-lens spacer; 57-lens spacer; 6-fan. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers. The technical features in the various embodiments exemplified in the specification can be freely combined to form new solutions without conflict. In addition, each claim can be used as an embodiment alone or the technical features in each claim can be combined as a new embodiment. In the drawings, the shape or thickness of the embodiment can be expanded and simplified or conveniently indicated. Furthermore, the elements or implementations not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, although this article may provide demonstrations of parameters containing specific values, it should be understood that the parameters do not need to be exactly equal to the corresponding values, but can be approximated to the corresponding values ​​within an acceptable error tolerance or design constraint.

[0026] Unless there are technical obstacles or contradictions, the above-mentioned various embodiments of the present disclosure can be freely combined to form additional embodiments, and these additional embodiments are all within the protection scope of the present disclosure.

[0027] Although the present disclosure is described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present disclosure and are not to be construed as limiting the present disclosure. The dimensional ratios in the drawings are merely illustrative and are not to be construed as limiting the present disclosure.

[0028] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined in the claims and their equivalents.

[0029] Figure 1 The figure schematically shows the components of an automotive projection headlight according to an embodiment of the present disclosure.

[0030] According to the embodiments of the present disclosure, Figure 1 As shown, the present disclosure provides a car projection headlight, including: a light-emitting module 1 for generating light. A focusing lens 2 for focusing the light. A reflective cup 3 for directionally reflecting the focused light. A digital optical processor module 4 for processing the light reflected by the reflective cup 3 to obtain a projected image. An imaging lens module 5 for projecting the projected image to a predetermined position. The light-emitting module 1, the focusing lens 2, the reflective cup 3, the digital optical processor module 4 and the imaging lens module 5 are arranged on a specific bracket, and the specific bracket has a plurality of mounting holes for connecting with a specific size of a car lens headlight fixing hole, and the size of the specific bracket is within a preset range.

[0031] In some embodiments, the automotive projection headlight integrates multiple key components to achieve efficient and precise projection lighting functions.

[0032] The light emitting module serves as a light source and is used to generate initial light.

[0033] For example, a light-emitting module may use high-brightness LED chips that are precisely arranged and packaged on a base with good heat dissipation. The light emitted by the LED chips has the characteristics of high brightness, low power consumption and long life, making it suitable for automotive lighting.

[0034] The focusing lens focuses the light generated by the light emitting module to make the light more concentrated and directional.

[0035] For example, a focusing lens might be made of a precision glass or plastic material with a specific curvature and refractive index to transform light from a diverging state to a focused state. This lens design helps reduce light loss and improve lighting efficiency.

[0036] The reflective cup reflects the focused light in a directionally appropriate manner, ensuring that the light can propagate in the predetermined direction.

[0037] For example, a reflector may have a parabolic or elliptical design, with a surface treated with high reflectivity (such as aluminum or silver) to maximize light reflection. This design helps enhance the directionality and brightness of light.

[0038] The digital optical processor module processes the light reflected by the reflective cup, such as adjusting the light intensity, color, shape, etc., to form the desired projection image.

[0039] For example, a digital optical processor module may contain a series of micromirror arrays, beam shaping components, and image processing algorithms. By controlling the tilt angle and on / off state of the micromirrors, the direction and intensity of light can be precisely adjusted to form a complex projected image.

[0040] The imaging lens module further amplifies and focuses the projected image processed by the digital optical processor module, and finally projects it to a predetermined location (such as the road surface or an obstacle ahead).

[0041] For example, an imaging lens module may consist of multiple lenses with different focal lengths and curvatures to achieve precise magnification and focus of the projected image. By adjusting the position and combination of the lenses, the clarity and brightness of the projected image can be optimized.

[0042] Specific brackets serve as the supporting structure for all the above components, ensuring that they can be stably and accurately installed in the car lens headlights.

[0043] For example, a specific bracket might be made of high-strength, corrosion-resistant metal and feature multiple, precisely designed mounting holes. These holes align with the mounting holes in commonly available automotive lens headlights (e.g., 3-inch), ensuring the bracket is securely mounted within the headlight. Furthermore, the bracket's dimensions are within a pre-set range to accommodate automotive lens headlights of varying sizes and shapes.

[0044] The automotive projection headlight of this embodiment achieves efficient and precise projection lighting by integrating key components such as the light-emitting module, focusing lens, reflector, digital optical processor module, and imaging lens module. A specialized bracket serves as the supporting structure for these components, ensuring their stable and accurate installation within the automotive projection headlight. This design not only improves the safety and comfort of automotive lighting, but also enhances the vehicle's sense of technology and individuality.

[0045] Figure 2 The three views of the appearance of the automotive projection headlight according to the embodiment of the present disclosure are schematically shown.

[0046] According to the embodiments of the present disclosure, Figure 2 As shown, the specific size is, for example, 2.5 inches to 3 inches. The length of the automotive projection headlight is 135 mm to 140 mm, the maximum width is 105 mm to 110 mm, and the maximum height is 75 mm to 85 mm.

[0047] In some embodiments, a miniaturized automotive projection headlight having a specific size of 2.5 inches to 3 inches (eg, 2.5 inches, 2.8 inches, 3 inches, etc.) is further described in detail.

[0048] In this miniaturized headlight, the light-emitting module, for example, utilizes a highly integrated array of LED chips, compactly packaged on a small heatsink. Due to limited space, the number and layout of the LED chips have been carefully optimized to ensure high brightness without compromising performance due to overheating.

[0049] The focusing lens also adopts a miniaturized design. Its size and curvature are precisely calculated to ensure the best light focusing effect in a limited space. This kind of lens is usually made of high-transmittance, low-dispersion glass material to reduce light loss.

[0050] The reflector is also compact and efficient, with a surface treated with high reflectivity to maximize light reflection. To meet the requirements of miniaturization, the shape and size of the reflector have been optimized to ensure that light can be accurately reflected in the intended direction.

[0051] The digital optical processor module in this miniaturized headlight utilizes advanced microelectronics technology, integrating a micromirror array, beam shaping elements, and image processing algorithms into a compact module. This compact yet powerful module enables precise control and adjustment of light.

[0052] The imaging lens module also adopts a miniaturized design. It consists of multiple small lenses. The focal length and curvature of these lenses have been precisely calculated to ensure the best projection effect in a limited space.

[0053] The specialized bracket design takes miniaturization into account. Made from high-strength, lightweight metal, it features multiple, precisely designed mounting holes. These holes align with the mounting holes in the vehicle's lens headlights, ensuring the bracket securely fits within the headlight. Furthermore, the bracket's dimensions are precisely controlled to ensure the overall headlight dimensions meet the required range of 135mm-140mm (length), 105mm-110mm (maximum width), and 75mm-85mm (maximum height).

[0054] For example, the length of an automotive projection headlight can be 137.7 ± 1.5 mm, the maximum width can be 106.5 ± 0.3 mm, and the maximum height can be 79.1 ± 1.5 mm. The specific bracket has four mounting holes, the spacing between the two mounting holes on the bottom side can be 95 ± 0.3 mm, and the spacing between the two mounting holes on the top side can be 60.8 ± 0.3 mm. The width of the housing that holds the digital optical processor module can be 90 ± 0.3 mm.

[0055] The automotive projection headlight of this embodiment meets the requirements of miniaturization by adopting key components such as a highly integrated LED chip array, a miniaturized focusing lens and reflector cup, an advanced digital optical processor module, and a compact imaging lens module, as well as a carefully designed specific bracket. Its length, width, and height are strictly controlled within a specified range, making it adaptable to more than 90% of cars. The fixing hole position is consistent with that of 3-inch automotive lens headlights on the market, and the installation conditions are simple.

[0056] According to an embodiment of the present disclosure, the center of the light source of the light-emitting module coincides with the optical axis of the focusing lens. The angle between the mounting plane of the light-emitting module and the mounting plane of the reflective cup is between 8° and 9°. The angle between the mounting plane of the digital optical processor module and the mounting plane of the light-emitting module is between 116° and 117°, and the mounting plane of the digital optical processor module is perpendicular to the horizontal plane. The center of the digital optical processor module coincides with the optical axis of the imaging lens module, and the mounting plane of the digital optical processor module is parallel to the mounting plane of the imaging lens module.

[0057] Figure 3 The imaging principle diagram of the automobile projection headlight according to an embodiment of the present disclosure is schematically shown.

[0058] like Figure 3 As shown, the smart car projection headlight uses the light-emitting module to focus the light source on the reflective cup through a focusing lens, and then reflects the light to the DLP module (digital light processor module) through the reflective cup. The DLP module (digital light processor module) then projects the image to be projected onto the ground or wall through the imaging lens module.

[0059] In some embodiments, further emphasis is placed on precise positioning and angle optimization between components to improve light transmission efficiency and projected image quality.

[0060] The light source center of the light module is precisely designed to coincide with the optical axis of the focusing lens, ensuring that light from the light source passes directly and efficiently through the focusing lens, minimizing light scattering and loss. Precise mechanical adjustments and fixtures ensure the positional accuracy of the light module during installation, maintaining alignment between the light source center and the focusing lens optical axis.

[0061] The angle between the mounting plane of the light-emitting module and the mounting plane of the reflective cup is precisely controlled at 8°~9°, for example, it can be 8.57°. This angle, through optical simulation and optimization, can maximize the reflective efficiency of the reflective cup for light, ensuring that light is efficiently transmitted in the predetermined direction.

[0062] The design and adjustment of the angle must take into account the luminous characteristics of the light source and the reflective performance of the reflector cup to achieve the best light control effect.

[0063] The angle between the mounting plane of the digital optical processor module and the mounting plane of the light-emitting module is precisely controlled at 116°~117°, for example, it can be 116.43°. This angle is intended to ensure that the light reflected by the reflective cup can smoothly enter the digital optical processor module for further image processing and beam shaping.

[0064] The DLP module's mounting plane is perpendicular to the horizontal plane. This design helps maintain a perpendicular relationship between the DMD chip and the projected image, minimizing image distortion and warping. Precise angle adjustment and fixtures ensure accurate positioning and consistent angles during installation.

[0065] The center of the digital optical processor module is precisely designed to coincide with the optical axis of the imaging lens module, ensuring that light processed by the DMD chip can pass directly and efficiently through the imaging lens module to form a clear projection image.

[0066] The mounting plane of the digital optical processor module remains parallel to the mounting plane of the imaging lens module. This design helps reduce the deflection and loss of light during transmission and improves the clarity and stability of the projected image.

[0067] The connections and fixation between components utilize sophisticated mechanical structures and designs to ensure the stability and reliability of the entire projector headlight during long-term use. Through optical simulation and experimental verification, the position, angle, and performance of each component are optimized to achieve optimal lighting effects and image quality.

[0068] It is understandable that the centers of the light emitting module, focusing lens, reflective cup, digital optical processor module and imaging lens module should be on the same plane so that the optical path of light transmission is also on the same plane.

[0069] The automotive projection headlights of this embodiment achieve efficient light transmission and high-quality projected images through precise design and adjustment of the position and angle relationships between various components. The precise positioning and angle optimization between the light-emitting module, reflector, digital optical processor module, and imaging lens module not only improves light utilization and projected image clarity, but also ensures the stability and reliability of the entire projection headlight.

[0070] According to an embodiment of the present disclosure, the longest side of the digital optical processor module is 30mm-40mm, and the thickness of the digital optical processor module is 5mm-7mm. The longest side of the light-emitting module is 30mm-40mm, and the thickness of the light-emitting module is 5mm-6mm. The diameter of the focusing lens is 20mm-25mm, and the thickness of the focusing lens is 6mm-8mm. The longest side of the reflector is 40mm-45mm, and the thickness of the reflector is 8mm-9mm.

[0071] In some embodiments, the dimensions of key components are further limited to achieve miniaturization and high performance of automotive projection headlights.

[0072] The longest dimension of the DLP module is precisely controlled between 30mm and 40mm, ensuring it maintains high performance while fitting within the space constraints of miniaturized projector headlights. The thickness is limited to 5mm to 7mm, achieving efficient heat dissipation and high-performance image processing within this limited thickness through optimized internal structure and material selection.

[0073] For example, the size of the digital optical processor module may be 35 mm x 24 mm x 5.8 mm.

[0074] The longest side of the light-emitting module is precisely controlled to between 30mm and 40mm, matching the digital optical processor module and ensuring a compact layout between the light source and image processing unit. The thickness is limited to between 5mm and 6mm. By utilizing advanced semiconductor packaging technology and heat dissipation design, high brightness output and stable operation are achieved within a compact thickness.

[0075] For example, the size of the light emitting module may be 22 mm×36 mm×5.32 mm.

[0076] The focusing lens' diameter is precisely controlled between 20mm and 25mm, ensuring efficient light focusing and transmission within a limited volume. The thickness is limited to 6mm to 8mm. By optimizing the lens material and manufacturing process, excellent optical performance and durability are achieved within a relatively small thickness.

[0077] For example, the size of the focusing lens may be 22 mm in diameter and 7 mm in thickness.

[0078] The longest side of the reflector is precisely controlled between 40mm and 45mm. This size range ensures sufficient reflective area within the limited space of projector headlights, thereby improving light utilization. The thickness is limited to 8mm to 9mm. By using high-strength, lightweight alloy materials, excellent reflective performance and mechanical strength are achieved within a small thickness.

[0079] For example, the size of the reflective cup may be 42 mm×34 mm×8.44 mm.

[0080] This embodiment of the automotive projection headlight achieves efficient lighting and high-performance projection within a confined space by precisely defining the dimensions of each key component. The meticulous control of the dimensions of the digital optical processor module, light-emitting module, focusing lens, and reflector not only ensures a compact layout and efficient coordination among these components, but also improves the overall performance and stability of the projection headlight.

[0081] Figure 4A The figure schematically shows the superimposed structure of the imaging lens module according to an embodiment of the present disclosure. Figure 4B The figure schematically shows the composition of the imaging lens module according to an embodiment of the present disclosure.

[0082] According to the embodiments of the present disclosure, Figure 4A and Figure 4BAs shown, the imaging lens module 5 includes, for example, a first lens 51, a second lens 52, a third lens 53, a fourth lens 54, and a fifth lens 55, which are stacked in sequence. The fifth lens 55 is disposed at the end of the imaging lens module 5 near the digital optical processor module 4. The first lens 51 has a convex surface on the side away from the second lens 52 and a concave surface on the side near the second lens 52. The second lens 52 has a convex surface on the side near the first lens 51 and a flat surface on the side near the third lens 53. Both sides of the third lens 53 are concave surfaces, and the curvature of the concave surface on the side near the second lens 52 is greater than the curvature of the concave surface on the side near the fourth lens 54. The fourth lens 54 has a flat surface on the side near the third lens 53 and a convex surface on the side near the fifth lens 55. Both sides of the fifth lens 55 are convex surfaces, and the curvature of the convex surface on the side near the fourth lens 54 is less than the curvature of the convex surface on the side near the digital optical processor module 4.

[0083] In some embodiments, the side of the first lens facing away from the second lens is convex, receiving and focusing light from the second lens to enhance the central brightness of the projected image. The side closer to the second lens is concave, helping to redirect light, reduce aberrations, and ensure projected image clarity.

[0084] The side of the second lens closest to the first lens is convex, enhancing the convergence of light. While the side connecting to the third lens remains flat, fine-tuning its thickness and refractive index optimizes light transition between the lenses and reduces light loss.

[0085] The design of the third lens with concave surfaces on both sides not only helps to further adjust the direction of light, but also effectively reduces the distortion and astigmatism of light during transmission by precisely controlling the curvature difference of the concave surfaces on both sides, thereby improving the edge quality of the projected image.

[0086] The side of the fourth lens closest to the third lens is flat, ensuring a smooth transition of light. The side closest to the fifth lens is convex, with its curvature and refractive index calculated to better match the angle of light received from the fifth lens, improving light transmission efficiency and enhancing the brightness and contrast of the projected image.

[0087] The fifth lens, the first stop for receiving light from the DOP module, features convex surfaces on both sides, ensuring efficient light reception and initial focusing. The convex surface near the fourth lens has a smaller curvature than the surface near the DOP module. This design improves light parallelism and uniformity without sacrificing light quality, providing better input conditions for subsequent lens groups.

[0088] Preferably, the maximum diameter of the concave surface of the third lens on the side closest to the second lens is smaller than the maximum diameter of the concave surface of the third lens on the side closest to the fourth lens. The maximum diameter of the convex surface of the fifth lens on the side closest to the fourth lens is smaller than the maximum diameter of the convex surface of the fifth lens on the side closest to the digital optical processor module, to further optimize the optical path.

[0089] In this embodiment's imaging lens module, the shape, curvature, refractive index, and relative positions of each lens have been calculated and optimized to meet specific light transmission requirements and projection effects. Each lens plays an essential role as light travels from the digital optical processor module, sequentially passing through the fifth, fourth, third, and second lenses, and ultimately projected onto the ground or wall by the first lens. Working together, they ensure efficient and accurate light transmission, resulting in a clear, vibrant, and distortion-free image on the projection surface.

[0090] According to an embodiment of the present disclosure, the diameter of any one of the first, second, third, fourth, and fifth lenses is 35 mm to 40 mm. The thickness of the first lens is 20 mm to 22 mm. The thickness of the second lens is 7 mm to 8 mm. The thickness of the third lens is 9 mm to 11 mm. The thickness of the fourth lens is 7 mm to 9 mm. The thickness of the fifth lens is 9 mm to 11 mm.

[0091] In some embodiments, the diameter and thickness range of each lens are further specified to ensure that the entire module meets compactness requirements while also providing excellent optical performance and projection quality.

[0092] The diameter of each of the first, second, third, fourth, and fifth lenses is precisely controlled between 35mm and 40mm. This size range not only ensures the physical compactness of the lens assembly, but also provides sufficient area for efficient light transmission, helping to improve the brightness and clarity of the projected image.

[0093] For example, the diameters of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are 38.4 mm, 38.7 mm, 38.7 mm, 38.7 mm, and 39 mm, respectively.

[0094] The thickness of the first lens is limited to between 20mm and 22mm, for example, 20.86mm. This range ensures sufficient strength and stability of the lens while optimizing the light propagation path within the lens, reducing light loss and improving the quality of the projected image.

[0095] The thickness of the second lens is 7mm~8mm, for example, it can be 7.23mm. By adopting lightweight materials and high-precision manufacturing processes, the lens can achieve precise control of the light transmission path while maintaining structural stability.

[0096] The thickness of the third lens is 9 mm to 11 mm, for example, it can be 10.19 mm. This design provides sufficient space to accommodate complex curved shapes while ensuring the stability and efficiency of the lens during the refraction and focusing of light.

[0097] The thickness of the fourth lens is 7mm~9mm, for example, it can be 8.33mm. By optimizing the shape and thickness of the lens, fine-tuning of the light transmission direction is achieved, which helps to improve the contrast and color saturation of the projected image.

[0098] The thickness of the fifth lens is 9mm~11mm, for example, it can be 10.17mm. As the first stop for receiving light from the digital optical processor module, its thickness design ensures efficient reception and initial focusing of light while also taking into account the strength and stability of the lens.

[0099] While pursuing high performance and compactness, the imaging lens module of this embodiment also fully considers the impact of lens diameter and thickness on light transmission efficiency and projection quality. By precisely controlling the diameter and thickness range of each lens, the lens assembly is physically compact and optically efficient.

[0100] According to the embodiments of the present disclosure, Figure 4A and Figure 4B As shown, the imaging lens module 5 further includes a lens spacer 56 and a lens spacer ring 57. The lens spacer 56 is positioned between the fourth lens 54 and the fifth lens 55. The diameter of the lens spacer 56 is 35 mm to 40 mm, and the thickness of the lens spacer 56 is 7 mm to 9 mm. The lens spacer ring 57 is positioned on the side of the fifth lens 55 closest to the digital optical processor module 4 to secure the fifth lens 55.

[0101] In some embodiments, lens spacers and lens spacers are introduced to further improve the structural stability and optical performance of the module.

[0102] The lens spacer is disposed between the fourth lens and the fifth lens and serves as a spacing and supporting structure between the two lenses.

[0103] The diameter of the lens spacer is precisely controlled to be between 35mm and 40mm, for example, 39mm, to match the diameter of the lens, ensuring precise alignment and stable support between the lenses. The thickness of the lens spacer is 7mm to 9mm, for example, 7.8mm. This design provides sufficient spacing to prevent direct contact and wear between the lenses while ensuring smooth transmission of light between the lenses.

[0104] The lens spacer is arranged on a side of the fifth lens close to the digital optical processor module and serves as a fixing structure for the fifth lens.

[0105] The primary function of the lens spacer is to secure the fifth lens, preventing it from moving or loosening within the module, thereby ensuring the stability and clarity of the projected image. The lens spacer is designed to provide a tight fit and stable support for the fifth lens, while maintaining a compact and lightweight structure.

[0106] For example, the lens spacer has a flat side and a groove on the other side. The flat side is in contact with the raised side of the fifth lens, and the grooved side is facing outward. The outer periphery of the lens spacer has an M40 thread, which can be connected and fixed with the inner thread of the lens barrel using a lens barrel tool through the outer thread.

[0107] It should be noted that the first lens, the second lens, the third lens, the fourth lens, the lens spacer, the fifth lens and the lens spacer are tightly fitted to each other and are fixedly connected to the lens barrel to achieve stable operation of the entire imaging lens module.

[0108] While pursuing high performance and compactness, the imaging lens module of this embodiment also fully considers the stability and reliability of its internal structure. The introduction of lens spacers and lens rings not only enhances the module's structural stability but also helps maintain precise alignment between lenses and smooth light transmission between them. This design not only improves the stability and clarity of the projected image but also extends the module's service life.

[0109] Figure 5 The figure schematically shows the composition of an automotive projection headlight according to another embodiment of the present disclosure.

[0110] According to the embodiments of the present disclosure, Figure 5 As shown, the automotive projection headlight further includes a fan 6, which is disposed on a side of the light emitting module 1 away from the focusing lens 2 and is used to cool the light emitting module 1. The fan 6 has a side length of 35 mm to 45 mm and a thickness of 10 mm to 12 mm.

[0111] In some embodiments, a fan assembly is added to more effectively manage the heat generated by the light-emitting module during operation, ensuring long-term stable operation and efficient performance of the headlight.

[0112] The light-emitting module includes an LED light source array, a heat dissipation structure and a circuit connection part, which is used to provide high-quality light source output.

[0113] For example, a high-power light-emitting module with a power of 70W is used to provide sufficient light.

[0114] The fan is arranged on a side of the light emitting module away from the focusing lens, that is, the rear or side of the light emitting module, so as to effectively extract the heat generated by the light emitting module and discharge it outside the headlamp.

[0115] The fan's side length ranges from 35mm to 45mm, ensuring sufficient heat dissipation while avoiding excessive space occupation, maintaining the compactness of the headlight's internal structure. The fan's thickness ranges from 10mm to 12mm, ensuring adequate heat dissipation without increasing the overall thickness of the headlight, maintaining a well-designed design and aerodynamic performance.

[0116] For example, the dimensions of the fan may be 40 mm x 40 mm x 11.3 mm.

[0117] The introduction of the fan, combined with the original heat dissipation structure of the light-emitting module, forms a more efficient heat dissipation system. The fan accelerates the flow of air around the light-emitting module through forced convection, thereby more effectively removing heat and reducing the operating temperature of the light-emitting module.

[0118] The automotive projection headlight of this embodiment incorporates a fan assembly, significantly improving its heat dissipation performance and ensuring the stability and efficiency of the light-emitting module during operation. The fan's dimensions ensure sufficient heat dissipation area while avoiding excessive space occupation, maintaining the compactness of the headlight's internal structure and its elegant exterior design. This design not only extends the headlight's service life but also enhances its lighting quality and safety, providing the driver with a brighter, clearer field of view.

[0119] According to an embodiment of the present disclosure, the fan is connected to the specific bracket through the stepped mounting hole.

[0120] In some embodiments, the installation method of the fan is further optimized, and a design in which a stepped installation hole (step hole) is connected to a specific bracket is adopted to improve the stability and reliability of the fan installation.

[0121] The fan's mounting area is designed with stepped mounting holes. This design not only provides multiple fixing points, but also increases installation stability through steps of varying heights, preventing the fan from loosening or shifting during operation. It also effectively prevents jamming during installation.

[0122] The stepped mounting holes allow the fan to be more securely attached to the specific bracket, maintaining stable heat dissipation even under bumpy or high-speed driving conditions.

[0123] The fan is supported and secured on a dedicated bracket with mounting holes that match the fan's dimensions and stepped mounting holes. During installation, align the fan with the stepped mounting holes and then secure it to the bracket using bolts or other fasteners. This installation method is not only quick and easy, but also ensures a tight fit and a stable connection between the fan and bracket.

[0124] The automotive projection headlight of this embodiment further optimizes fan installation by utilizing a stepped mounting hole connected to a specific bracket, enhancing the stability and reliability of fan installation. This design not only ensures fan stability and heat dissipation during operation, but also improves the overall durability and safety of the headlight.

[0125] According to an embodiment of the present disclosure, the automotive projection headlight further includes: a Bluetooth module for wirelessly connecting to any one of a mobile communication device and an in-vehicle Bluetooth.

[0126] In some embodiments, based on the above embodiments, the car projection headlights further add a Bluetooth module to achieve wireless communication connection with any one of mobile communication devices and car Bluetooth, providing drivers with a more intelligent and convenient user experience.

[0127] It should be noted that the in-vehicle Bluetooth in the embodiments of the present disclosure refers to a Bluetooth module that is usually integrated into the vehicle system of a car.

[0128] The Bluetooth module can be integrated inside the car projection headlight, such as on the main board near the digital optical processor module, without taking up additional space while ensuring good signal reception and transmission effects.

[0129] The Bluetooth module is used to establish wireless communication connections with mobile communication devices (such as smartphones, tablets, AI glasses, etc.), realizing direct data transmission and control functions between mobile communication devices and car projection headlights.

[0130] The Bluetooth module supports mainstream Bluetooth protocols and is compatible with most mobile devices and in-car Bluetooth devices on the market, ensuring wide applicability. Drivers can use either their mobile device or the in-car Bluetooth to remotely control the car's projection headlights, including on / off, brightness adjustment, and lighting mode switching, achieving a more intelligent and personalized lighting experience.

[0131] For example, the embodiment of the present disclosure can be connected to the smart car projection headlights via mobile phone Bluetooth, and the image to be projected can be directly transmitted to the smart car projection headlights via mobile phone Bluetooth, and then projected onto the ground or wall through the smart car projection headlights, providing drivers and passengers with audio-visual entertainment and leisure relaxation after a tiring drive.

[0132] In addition, the Bluetooth module can also be integrated with other intelligent systems of the vehicle (such as navigation system, entertainment system, etc.) to achieve a more convenient in-vehicle control experience.

[0133] The Bluetooth module takes security into full consideration during its design and implementation, and adopts encrypted communication and authentication mechanisms to ensure security during data transmission.

[0134] For example, this embodiment also provides a user-friendly interactive interface, and the driver can easily access and control various functions of the car projection headlights through an application on a mobile communication device.

[0135] The car projection headlights of this embodiment incorporate a Bluetooth module, enabling wireless communication with either mobile devices or the car's in-car Bluetooth, providing drivers with a more intelligent and convenient user experience. This design not only enhances the functionality and operability of the headlights, but also increases driver comfort and safety while driving.

[0136] It should be understood that the specific order or hierarchy of steps in the disclosed processes is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in an exemplary order and are not intended to be limited to a specific order or hierarchy.

[0137] It should also be noted that directional terms such as "upper," "lower," "front," "back," "left," and "right" mentioned in the embodiments are merely references to the directions in the accompanying drawings and are not intended to limit the scope of protection of this disclosure. Throughout the drawings, identical elements are represented by identical or similar reference numerals. Conventional structures or configurations that may cause confusion in understanding this disclosure will be omitted. Furthermore, the shapes, sizes, and positional relationships of the components in the drawings do not reflect their actual sizes, proportions, or actual positional relationships.

[0138] In the foregoing detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are expressly recited in each claim. On the contrary, as reflected in the appended claims, the disclosure comprises less than all features of any individual disclosed embodiment. The appended claims are therefore hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the disclosure.

[0139] In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. With respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", as explained in terms of "including" used as a transitional word in the claims. Any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

[0140] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present disclosure. It should be understood that the above are only specific embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A car projection headlight, characterized in that: include: A light-emitting module, for generating light; a focusing lens, used to focus the light; A reflective cup, used for directionally reflecting the focused light; A digital optical processor module, used for processing the light reflected by the reflective cup to obtain a projected image; An imaging lens module, configured to project the projection image to a predetermined position; Wherein, the light-emitting module, the focusing lens, the reflective cup, the digital optical processor module and the imaging lens module are arranged on a specific bracket, and the specific bracket has multiple mounting holes for connecting with the fixing holes of automobile lens headlights of specific sizes, and the size of the specific bracket is within a preset range.

2. The automotive projection headlamp according to claim 1, characterized in that: The specific size is 2.5 inches to 3 inches; The automobile projection headlight has a length of 135 mm to 140 mm, a maximum width of 105 mm to 110 mm, and a maximum height of 75 mm to 85 mm.

3. The automotive projection headlamp according to claim 2, characterized in that: The light source center of the light emitting module coincides with the optical axis of the focusing lens; The angle between the mounting plane of the light-emitting module and the mounting plane of the reflective cup is 8° to 9°; The angle between the mounting plane of the digital optical processor module and the mounting plane of the light emitting module is between 116° and 117°, and the mounting plane of the digital optical processor module is perpendicular to the horizontal plane; The center of the digital optical processor module coincides with the optical axis of the imaging lens module, and the installation plane of the digital optical processor module is parallel to the installation plane of the imaging lens module.

4. The automotive projection headlamp according to claim 2, characterized in that: The longest side of the digital optical processor module is 30 mm to 40 mm, and the thickness of the digital optical processor module is 5 mm to 7 mm; The longest side of the light-emitting module is 30 mm to 40 mm, and the thickness of the light-emitting module is 5 mm to 6 mm; The diameter of the focusing lens is 20 mm to 25 mm, and the thickness of the focusing lens is 6 mm to 8 mm; The longest side of the reflective cup is 40 mm to 45 mm, and the thickness of the reflective cup is 8 mm to 9 mm.

5. The automotive projection headlamp according to claim 2, characterized in that: The imaging lens module includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially stacked on each other, and the fifth lens is arranged at one end of the imaging lens module close to the digital optical processor module; The side of the first lens away from the second lens is convex, and the side close to the second lens is concave; The side of the second lens close to the first lens is convex, and the side close to the third lens is flat; Both sides of the third lens are concave surfaces, and the curvature of the concave surface on the side close to the second lens is greater than the curvature of the concave surface on the side close to the fourth lens, and the maximum diameter of the concave surface on the side close to the second lens is smaller than the maximum diameter of the concave surface on the side close to the fourth lens; The side of the fourth lens close to the third lens is a flat surface, and the side close to the fifth lens is a convex surface; Both sides of the fifth lens are convex surfaces, and the curvature of the convex surface on the side close to the fourth lens is smaller than the curvature of the convex surface on the side close to the digital optical processor module, and the maximum diameter of the convex surface on the side close to the fourth lens is smaller than the maximum diameter of the convex surface on the side close to the digital optical processor module.

6. The automotive projection headlamp according to claim 5, characterized in that: The diameter of any one of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens is 35 mm to 40 mm; The thickness of the first lens is 20 mm to 22 mm; The thickness of the second lens is 7 mm to 8 mm; The thickness of the third lens is 9 mm to 11 mm; The thickness of the fourth lens is 7 mm to 9 mm; The thickness of the fifth lens is 9 mm to 11 mm.

7. The automotive projection headlamp according to claim 5, characterized in that: The imaging lens module further includes: lens spacers and lens spacers; The lens spacer is provided between the fourth lens and the fifth lens, the diameter of the lens spacer is 35 mm to 40 mm, and the thickness of the lens spacer is 7 mm to 9 mm; The lens spacer is arranged on a side of the fifth lens close to the digital optical processor module, and is used to fix the fifth lens.

8. The automotive projection headlamp according to claim 1, characterized in that: Also includes: a fan, disposed on a side of the light-emitting module away from the focusing lens, for cooling the light-emitting module; The side length of the fan is 35 mm to 45 mm, and the thickness of the fan is 10 mm to 12 mm.

9. The automotive projection headlamp according to claim 8, characterized in that: The fan is connected to the specific bracket through a stepped mounting hole.

10. The automotive projection headlamp according to claim 1, characterized in that: Also includes: The Bluetooth module is used to establish wireless communication connection with any one of mobile communication devices and car Bluetooth.

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