Vehicle lamp optical structure, vehicle lamp module and vehicle
By incorporating primary optical elements, beam splitters, and reflectors into the headlights, and utilizing light transmission and reflection distribution, the problem of increasing the number of ADB pixels within a confined space is solved, thus achieving a multi-functional headlight design.
Patent Information
- Application Number
- CN202011462046.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-11
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2040-12-11
AI Technical Summary
Existing technologies have significant limitations in achieving a greater number of ADB pixels in a confined space while simultaneously meeting the requirements of a flat design.
By employing a first primary optical element, a beam splitter, and a first secondary optical element arranged sequentially from back to front, combined with a reflector and a dimming assembly, light utilization and the number of pixels are increased through the distribution of light transmission and reflection.
Without increasing the aperture size of optical components, the number of vehicle headlight pixels can be effectively increased, and multiple lighting and signal functions can be achieved, reducing design difficulty.
Smart Images
Figure CN113294741B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to vehicle lights, specifically to a vehicle light optical structure. Furthermore, this invention also relates to a vehicle light module and a vehicle incorporating the vehicle light optical structure. Background Technology
[0002] The trend towards flatter headlight designs is increasingly evident in automotive headlight aesthetics. Furthermore, with growing emphasis on nighttime driving safety, Adaptive High Beam (ADB) systems are gaining importance, making ADB a crucial feature of automotive headlights. The trend towards flatter headlights means a reduction in the light-emitting area. Achieving around 10 pixels of ADB functionality within a limited space is roughly the limit. However, OEMs are demanding ever-increasing numbers of ADB pixels in the future, making the achievement of more ADB pixels within confined spaces a significant challenge.
[0003] Currently, achieving high beam ADB functionality based on a flat headlight opening mainly involves arranging multiple similar optical structures in a left-right direction. The light spots emitted by each optical structure then combine to form the high beam ADB function. However, while this module can achieve a flattened headlight output window, the number of ADB pixels achievable within a limited space is very limited, failing to simultaneously meet the requirements for pixel count and module size in the left-right direction. On the other hand, if multiple optical structures are arranged in two rows, one above the other, to increase the number of pixels, the module's size in the vertical direction is increased, requiring the use of output lenses with larger vertical openings, which does not meet the requirements of a flat headlight output window design. Therefore, this method has significant limitations in achieving ADB with more pixels. Summary of the Invention
[0004] The first technical problem to be solved by the present invention is to provide a vehicle headlight optical structure that can effectively increase the number of pixels in the headlight, which not only facilitates the implementation of ADB function, but also meets the requirements of flat headlight design.
[0005] The technical problem to be further solved by the present invention is to provide a vehicle headlight module with more pixels, which can better realize the ADB function.
[0006] The final technical problem to be solved by the present invention is to provide a vehicle with a higher number of pixels, which enables better implementation of ADB functionality.
[0007] To address the aforementioned technical problems, a first aspect of the present invention provides a vehicle headlight optical structure, comprising a first primary optical element, a beam splitter, and a first secondary optical element arranged sequentially from rear to front, wherein a second primary optical element is disposed above or below the beam splitter; the first primary optical element is arranged such that a portion of its emitted light rays can be transmitted through the beam splitter to the first secondary optical element and projected by the first secondary optical element, and the second primary optical element is arranged such that a portion of its emitted light rays can be reflected by the beam splitter to the first secondary optical element and projected by the first secondary optical element.
[0008] Preferably, a reflector is provided on the side of the beam splitter away from the second primary optical element, and a second primary optical element is provided in front of the reflector. Part of the light emitted from the first primary optical element can be reflected by the beam splitter to the reflector, and then reflected by the reflector to the second primary optical element for projection. Part of the light emitted from the second primary optical element can be transmitted through the beam splitter to the reflector, and then reflected by the reflector to the second primary optical element for projection.
[0009] More preferably, a dimming assembly is provided between the reflector and the second-stage optical element and / or between the beam splitter and the first-stage optical element.
[0010] More preferably, the dimming assembly includes a rotating shaft and at least one dimming element. The dimming element is a light-shielding plate or a light-transmitting plate. The dimming element is mounted on the rotating shaft so that the light incident on the dimming assembly can be selectively transmitted through one of the dimming elements or not transmitted through either dimming element, and then emitted to the first-stage optical element or the second-stage optical element for projection, thereby realizing the corresponding lighting function or signal light function.
[0011] Specifically, the dimming assembly includes two dimming elements, the two dimming elements being made of different materials and / or have different shapes, and the rotating shaft is arranged in a horizontal direction.
[0012] In a preferred embodiment, the first primary optical element includes a first primary element light-incident section, a first primary element light-guide section, and a first primary element light-exit section arranged sequentially from back to front. The first primary element light-incident section includes a plurality of first primary element focusing structures arranged in a left-right direction facing the first primary element light-guide section. The first primary element light-exit section has a first primary element convex surface that corresponds one-to-one with the first primary element focusing structure. The second primary optical element includes a second primary element light-incident section, a second primary element light-guide section, and a second primary element light-exit section arranged sequentially in a direction facing the beam splitter. The second primary element light-incident section includes a plurality of second primary element focusing structures arranged in a left-right direction facing the second primary element light-guide section. The second primary element light-exit section has a second primary element convex surface that corresponds one-to-one with the second primary element focusing structure. The first primary element convex surface and the second primary element convex surface are respectively configured to protrude towards the beam splitter.
[0013] More preferably, the first-stage optical element and the second-stage optical element each include a plurality of light-incident surfaces and a light-outceasing surface. The light-incident surfaces are configured to correspond one-to-one with the light-concentrating structure of the first primary element or one-to-one with the light-concentrating structure of the second primary element. The plurality of light-incident surfaces are respectively configured as rearwardly protruding convex curved surfaces. The light-outceasing surface is configured as a smooth curved surface formed by sweeping a vertical generatrix along a predetermined curve. The vertical generatrix is a forwardly protruding convex curve.
[0014] As another preferred embodiment, the reflector is a plane mirror or a curved mirror.
[0015] Preferably, the beam splitter is a beam splitter prism or a beam splitter plate.
[0016] A second aspect of the present invention provides a vehicle lamp module, including the above-described vehicle lamp optical structure and a light source, wherein the light source is configured correspondingly to the first primary optical element and the second primary optical element.
[0017] Preferably, the vehicle lamp optical structure is the above-mentioned vehicle lamp optical structure containing the first primary element focusing structure and the second primary element focusing structure, and the light source is configured in a one-to-one correspondence with the first primary element focusing structure and the second primary element focusing structure.
[0018] A third aspect of the present invention provides a vehicle including the above-described headlight module.
[0019] Through the above technical solution, the light received by the first primary optical element and the second primary optical element in the vehicle lamp optical structure provided by the present invention can be emitted to the beam splitter. After being split by the beam splitter, part of the light emitted by the first primary optical element can be transmitted through the beam splitter to the first primary optical element for projection, and part of the light emitted by the second primary optical element can be reflected by the beam splitter to the first primary optical element for projection. Thus, the light received by both the first primary optical element and the second primary optical element can be transmitted to the first primary optical element, so as to increase the number of pixels of the vehicle lamp without increasing the opening size of the first primary optical element, which facilitates the implementation of ADB function.
[0020] In a preferred embodiment of the present invention, a reflector is provided on the side of the beam splitter away from the second primary optical element, and a second primary optical element is provided in front of the reflector, so that a portion of the light emitted from the first primary optical element that is reflected by the beam splitter is reflected by the reflector to the second primary optical element, and a portion of the light emitted from the second primary optical element that passes through the beam splitter is also reflected by the reflector to the second primary optical element, which can further increase the number of pixels in the headlight; the setting of the dimming component enables the headlight optical structure to realize multiple headlight lighting functions such as DRL, turn signal lights, low beam, high beam and / or signal light functions, realizing the integration of multiple lighting functions on the same module and reducing the cost of other headlight functions.
[0021] Other technical features and effects of the present invention will be further described in the detailed embodiments below. Attached Figure Description
[0022] The following figures are provided to further illustrate the invention and form part of the specification. They, together with the detailed embodiments described below, serve to explain the invention, but the scope of protection of the invention is not limited to the following figures and detailed embodiments. In the figures:
[0023] Figure 1 This is a schematic diagram of the structure of the vehicle headlight optical structure of the first specific embodiment of the vehicle headlight optical structure in this invention;
[0024] Figure 2 yes Figure 1 The diagram shows the optical path principle of the vehicle headlight optical structure.
[0025] Figure 3 This is a schematic diagram of the structure of the second specific embodiment of the vehicle headlight optical structure in this invention;
[0026] Figure 4 yes Figure 3 A schematic diagram of the first primary optical element in the automotive lamp optical structure shown;
[0027] Figure 5 yes Figure 3 The diagram shows the structure of the first-stage optical element in the automotive lamp optical structure.
[0028] Figure 6 yes Figure 3 The diagram shows the structure of the dimming component in the automotive headlight optical structure.
[0029] Figure 7 yes Figure 3 A schematic diagram of the first working state of the dimming component in the automotive lamp optical structure shown;
[0030] Figure 8 yes Figure 3 A schematic diagram of the second working state of the dimming component in the automotive lamp optical structure shown;
[0031] Figure 9 yes Figure 3 The diagram shows the third working state of the dimming component in the automotive lamp optical structure.
[0032] Figure 10 yes Figure 3 The diagram shows the fourth working state of the dimming component in the automotive lamp optical structure.
[0033] Figure 11 yes Figure 3 The diagram shows the fifth working state of the dimming component in the automotive lamp optical structure.
[0034] Explanation of reference numerals in the attached figures
[0035] 1. First primary optical element; 11. First primary element focusing structure
[0036] 12 First primary element light guide section 13 First primary element convex surface
[0037] 2. Second Primary Optical Element 2.1 Second Primary Element Concentrating Structure
[0038] 22 Light guide section of the second primary element 23 Convex surface of the second primary element
[0039] 3-beam splitter and 4-secondary optical components
[0040] 41 First-stage optical element 42 Second-stage optical element
[0041] 43 Receiver surface 44 Output surface
[0042] 5 reflectors 6 dimming components
[0043] 61 Rotary shaft 62 Dimming element
[0044] 7 light sources Detailed Implementation
[0045] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0046] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of the present invention, such as "up," "down," "left," "right," "front," and "rear," refer to the direction in which the light source is emitted, the opposite direction, the left side of the light source, the right side of the light source (which is the same as the left and right sides of the vehicle during normal driving), the upper direction of the light source, and the lower direction of the light source. These terms are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0048] The first aspect of the present invention provides a vehicle headlight optical structure, such as... Figures 1 to 3 As shown, it includes a first primary optical element 1, a beam splitter 3, and a first primary optical element 41 arranged sequentially from back to front. A second primary optical element 2 is arranged above or below the beam splitter 3. The first primary optical element 1 is arranged such that a portion of its emitted light can be transmitted through the beam splitter 3 to the first primary optical element 41 and projected by the first primary optical element 41. The second primary optical element 2 is arranged such that a portion of its emitted light can be reflected by the beam splitter 3 to the first primary optical element 41 and projected by the first primary optical element 41.
[0049] The beam splitter 3 in this invention can be any element that can split the light incident on the beam splitter 3 into two or more beams. The beam splitting method can be to reflect part of the light received and transmit part of it. Preferably, the beam splitter 3 is a beam splitting prism or a beam splitting plate.
[0050] To better illustrate the working process of the automotive lamp optical structure provided by this invention, the following detailed description is provided in conjunction with its application in an automotive lamp module. The automotive lamp module includes a light source 7, which is correspondingly positioned with the first primary optical element 1 and the second primary optical element 2. The working process of this automotive lamp module is as follows: the first primary optical element 1 and the second primary optical element 2 respectively receive and transmit the light emitted by their respective corresponding light sources 7. The emitted light from both light sources enters the beam splitter 3 from different sides and is split by the beam splitter 3. This allows a portion of the emitted light from the first primary optical element 1 to pass through the beam splitter 3 and be projected onto the first primary optical element 41. Similarly, a portion of the emitted light from the second primary optical element 2 is reflected by the beam splitter 3 and projected onto the first primary optical element 41. In other words, the light received by both the first and second primary optical elements 1 and 2 can be transmitted to the first primary optical element 41 for projection, forming a corresponding number of pixels. Consequently, without changing the opening size of the first primary optical element 41, the number of pixels in the automotive lamp module can be effectively increased. When applied to ADB high beam modules, if the number of pixels remains unchanged, the left and right dimensions of the high beam module can be shortened, greatly reducing the design difficulty of the headlight dimming structure.
[0051] In this invention, the emitted light rays from both the first primary optical element 1 and the second primary optical element 2 are partially transmitted or reflected by the beam splitter 3. However, the light rays reflected by the beam splitter 3 from the emitted light rays of the first primary optical element 1 and the light rays transmitted by the beam splitter 3 from the emitted light rays of the second primary optical element 2 are not effectively utilized. To improve the utilization efficiency of the light emitted by the light source 7 in this application, in some preferred embodiments of the invention, such as... Figures 1 to 3As shown, a reflector 5 is provided on the side of the beam splitter 3 away from the second primary optical element 2, and a second primary optical element 42 is provided in front of the reflector 5. Part of the light emitted from the first primary optical element 1 can be reflected by the beam splitter 3 to the reflector 5, and then reflected by the reflector 5 to the second primary optical element 42 for projection. Part of the light emitted from the second primary optical element 2 can be transmitted through the beam splitter 3 to the reflector 5, and then reflected by the reflector 5 to the second primary optical element 42 for projection. At this time, when the emitted light from the first primary optical element 1 reaches the beam splitter 3, part of the light passes directly through the beam splitter 3 to the first primary optical element 41 for projection, while part of the light is reflected by the beam splitter 3 to the reflector 5, and then reflected by the reflector 5 to the second primary optical element 42 for projection. Similarly, when the emitted light from the second primary optical element 2 reaches the beam splitter 3, part of the light is reflected by the beam splitter 3 to the first primary optical element 41 for projection, while part of the light passes directly through the beam splitter 3 to the reflector 5, and then reflected by the reflector 5 to the second primary optical element 42 for projection. Through the cooperation of the beam splitter 3 and the reflector 5, the emitted light from the first primary optical element 1 and the second primary optical element 2 are respectively divided into a portion transmitted to the first primary optical element 41 and a portion transmitted to the second primary optical element 42, thereby further increasing the number of pixels formed by the light projected by the first primary optical element 41 and the second primary optical element 42, and effectively improving the light utilization rate of the automotive lamp optical elements.
[0052] The reflector 5 in this invention can be a reflector or other element with a reflective function. Preferably, the reflector 5 is a plane reflector or a curved reflector, which has a higher light reflection efficiency for light incident on the reflector 5.
[0053] In this invention, the primary optical element 41 and the secondary optical element 42 of the vehicle headlight optical structure can take various forms. For example, they can be multiple independently set light-emitting lenses corresponding to multiple pixels, or they can be multiple light-emitting lenses connected as one unit. When multiple light-emitting lenses are connected as one unit, the light-emitting surface 44 of the primary optical element 41 and the secondary optical element 42 can be designed according to the requirements of the vehicle headlight shape. The light-incident surface 43 can be calculated based on the light-emitting surface 44 and the set light-emitting direction. It can be a rearward convex curved surface, a free curved surface, or a light-incident surface with the same light-emitting surface structure as the Fresnel lens.
[0054] In some preferred embodiments of the present invention, such as Figure 3As shown, a dimming assembly 6 is provided between the reflector 5 and the secondary optical element 42 and / or between the beam splitter 3 and the primary optical element 41. The light emitted from the reflector 5 is dimmed by the corresponding dimming assembly 6 before being transmitted to the secondary optical element 42, and / or the light emitted from the beam splitter 3 is dimmed by the corresponding dimming assembly 6 before being transmitted to the primary optical element 41. By utilizing the material and shape of the dimming assembly 6 and adjusting the output luminous flux of the corresponding light source 7, one or more of the following lighting functions or signal functions can be realized: high beam, low beam, daytime running lights, position lights, turn signals, etc., thereby improving the functionality of the vehicle's lighting optical structure.
[0055] In this invention, the dimming component 6 can be a fixed dimming element 62, enabling the headlight module to form a single functional light pattern; it can also be a rotatable dimming element 62, which is rotated to the desired position by a mechanical structure; or it can be a dimming element 62 capable of vertical or horizontal translation, which is moved to the desired position by a mechanical structure, allowing the headlight module to form multiple functional light patterns and automatically switch between them. As a preferred embodiment of the dimming component 6 in this invention, such as... Figure 6 As shown, the dimming assembly 6 includes a rotating shaft 61 and at least one dimming element 62. The dimming element 62 is a light-shielding plate or a light-transmitting plate. The dimming element 62 is mounted on the rotating shaft 61 so that the light incident on the dimming assembly 6 can be selectively transmitted through one of the dimming elements 62 or not transmitted through either dimming element 62, and then emitted to the first-stage optical element 41 and / or the second-stage optical element 42 for projection, thereby realizing the corresponding lighting function or signal light function.
[0056] The shape and material of the dimming element 62 are designed according to the light distribution requirements (including light intensity requirements and light color requirements) of the lighting or signal light functions required by the vehicle headlight module. The dimming element 62 can be a daytime running light (DRL) light-transmitting plate made of light-scattering material, which diffuses and transmits white light to the light incident on it, thus achieving the daytime running light function; or a turn signal light-transmitting plate made of light-scattering material, which diffuses and transmits yellow light to achieve the turn signal function; or a low beam shield made of opaque material, with a structure similar to a traditional low beam shield (having a cut-off structure), blocking part of the light to achieve the low beam function. The rotating shaft 61 is driven to rotate using existing technology, such as a servo motor directly driving the rotating shaft 61. This is existing technology and not an innovation of this application, therefore it will not be described in detail.
[0057] The type of dimming element 62 corresponding to the reflector 5 and / or the beam splitter 3 can be switched by the movement of the rotating shaft 61. When the outgoing light from the reflector 5 and the beam splitter 3 does not pass through the dimming element 62, it is directly projected through the first-stage optical element 41 and the second-stage optical element 42 to form a high beam illumination pattern. When one or both of the outgoing light from the reflector 5 and the beam splitter 3 can selectively pass through a dimming element 62, the light from the first-stage optical element 41 and / or the second-stage optical element 42 can be projected to form a light pattern that meets the functions of low beam illumination or signal lights.
[0058] Specifically, the dimming assembly 6 includes two dimming elements 62, which are made of different materials and / or have different shapes, and the rotating shaft 61 is arranged in a horizontal direction.
[0059] For example, such as Figures 7 to 11 As shown, the dimming assembly 6 corresponding to the reflector 5 includes a DRL light-transmitting plate and a turn signal light-transmitting plate, both of which are connected to their respective rotating shafts 61. The dimming assembly 6 corresponding to the beam splitter 3 includes a DRL light-transmitting plate and a low beam shield, both of which are connected to their respective rotating shafts 61. In this case, the movement of the rotating shafts 61 can realize the functions of the vehicle lights, such as daytime running lights, turn signals, and high / low beams. Figure 7 As shown, when both the reflector 5 and the beam splitter 3 use DRL light-transmitting plates for their corresponding dimming elements 62, the emitted light from the first-stage optical element 41 and the second-stage optical element 42 together achieve the daytime running light function; as shown Figure 8 As shown, when the dimming element 62 corresponding to the reflector 5 is a DRL light-transmitting plate and the dimming element 62 corresponding to the beam splitter 3 is a low-beam light-shielding plate, the emitted light from the first-stage optical element 41 achieves the low-beam function, and the emitted light from the second-stage optical element 42 achieves the daytime running light function; as shown Figure 9 As shown, when the dimming element 62 corresponding to the reflector 5 is a turn signal light-transmitting plate and the dimming element 62 corresponding to the beam splitter 3 is a low beam light-shielding plate, the emitted light from the first-stage optical element 41 achieves the low beam function, and the emitted light from the second-stage optical element 42 achieves the turn signal light function; as shown Figure 10 As shown, the dimming element 62 corresponding to the reflector 5 is a DRL light-transmitting plate, and the dimming assembly 6 corresponding to the beam splitter 3 is placed horizontally. When the reflected light from the beam splitter 3 does not pass through any dimming element 62, the emitted light from the first-stage optical element 41 achieves the high beam function, and the emitted light from the second-stage optical element 42 achieves the daytime running light function; as shown. Figure 11As shown, the dimming element 62 corresponding to the reflector 5 is selected as the turn signal light-transmitting plate, and the dimming component 6 corresponding to the beam splitter 3 is placed horizontally. When the reflected light of the beam splitter 3 does not pass through any dimming element 62, the emitted light of the first-stage optical element 41 realizes the high beam function, and the emitted light of the second-stage optical element 42 realizes the turn signal light function.
[0060] As a preferred embodiment of the first primary optical element 1 and the second primary optical element 2 in this invention, such as Figure 4 As shown, the first primary optical element 1 includes a first primary element light-incident section, a first primary element light-guide section 12, and a first primary element light-exit section arranged sequentially from back to front. The first primary element light-incident section includes a plurality of first primary element light-focusing structures 11 arranged in the left-right direction facing the first primary element light-guide section 12. The first primary element light-exit section has a first primary element convex surface 13 corresponding to the first primary element light-focusing structure 11. The second primary optical element 2 includes a second primary element light-incident section, a second primary element light-guide section 22, and a second primary element light-exit section arranged sequentially in the direction facing the beam splitter 3. The second primary element light-incident section includes a plurality of second primary element light-focusing structures 21 arranged in the left-right direction facing the second primary element light-guide section 22. The second primary element light-exit section has a second primary element convex surface 23 corresponding to the second primary element light-focusing structure 21. The first primary element convex surface 13 and the second primary element convex surface 23 are respectively configured to protrude towards the beam splitter 3.
[0061] At this time, the light source 7 in the headlight module is configured to correspond one-to-one with the first primary element focusing structure 11 and the second primary element focusing structure 21. The first primary element focusing structure 11 and the second primary element focusing structure 21 can be structures with an external contour shaped like a focusing cup, or they can be reflective bowls, or other structures with focusing functions, such as... Figure 9 As shown, the first primary element focusing structure 11 and the second primary element focusing structure 21 can extend towards the beam splitter 3 or extend at an angle. The extension angle of each focusing structure can be independently designed according to the installation position and spatial structure of each component in the vehicle lamp module. The first primary element convex surface 13 and the second primary element convex surface 23 can be set as convex cylindrical surfaces or free-form surfaces protruding outward from the corresponding light-emitting part. The surface curvature of the first primary element convex surface 13 and the second primary element convex surface 23 towards the beam splitter 3 and the outward extension length can be designed according to the extension angle of the focusing structure corresponding to the convex surface or the light spot size and the position of the light spot in the light pattern required by the corresponding light source 7, so as to control the corresponding light spot to the set size and orientation.
[0062] Preferably, such as Figure 5As shown, the first-stage optical element 41 and the second-stage optical element 42 each include multiple light-incident surfaces 43 and one light-exiting surface 44. The light-incident surfaces 43 are configured to correspond one-to-one with the light-focusing structure 11 of the first primary element or one-to-one with the light-focusing structure 21 of the second primary element. The multiple light-incident surfaces 43 are respectively configured as rearwardly convex curved surfaces, and the light-exiting surface 44 is configured as a smooth curved surface formed by sweeping a vertical generatrix along a set curve. The vertical generatrix is a forward-convex curved curve. Generally, the number of first-stage light-focusing structures 11 is the same as the number of second-stage light-focusing structures 21, so that the number of light-incident surfaces 43 can correspond to the light-focusing structure of any primary optical element, which also facilitates the design of the automotive lamp optical structure. The vertical generatrix is the longitudinal section of the light-exiting surface 44, and its shape and the set curve can be formed according to the requirements of the automotive lamp design. Each light-incident surface 43 can cooperate with the light-outceasing surface 44 to form a focusing structure. Each focusing structure can form the refraction effect of a conventional convex lens to project the light incident on the first-stage optical element 41 and the second-stage optical element 42 to form an illumination spot. Multiple illumination spots are sequentially connected and superimposed to form an illumination pattern.
[0063] Based on the preferred embodiments of the first primary optical element 1, the second primary optical element 2, the first primary optical element 41, and the second primary optical element 42 described above, the light transmission path in the automotive lamp optical structure is as follows: the light emitted from the light source 7 corresponding to the focusing structure 11 of the first primary element is focused and collimated by the focusing structure and then transmitted by the light guide part 12 of the first primary element to the corresponding convex surface 13 of the first primary element. After being focused by the convex surface 13 of the first primary element, the light is emitted to the beam splitter 3. A portion of the light passes through the beam splitter 3 and is then dimmed by the dimming assembly 6 or directly incident on the corresponding light-incident surface 43 of the first primary optical element 41. Finally, it is projected through the light-out surface 44 of the first primary optical element 41 to form a light spot. A portion of the light is reflected by the beam splitter 3 to the reflector 5, and then reflected by the reflector 5 and dimmed by the dimming assembly 6 or directly incident on the corresponding light-incident surface 43 of the second primary optical element 42. Finally, it passes through the second primary optical element 42. The light-emitting surface 44 projects light to form a light spot; the light emitted by the light source 7 corresponding to the light-concentrating structure 21 of the second primary element is focused and collimated by the light-concentrating structure and then transmitted by the light guide part 22 of the second primary element to the corresponding convex surface 23 of the second primary element. After being focused by the convex surface 23 of the second primary element, the light is emitted to the beam splitter 3. A portion of the light is reflected by the beam splitter 3 and then dimmed by the dimming component 6 or directly incident on the corresponding light-incident surface 43 of the first primary optical element 41. Finally, it is projected through the light-emitting surface 44 of the first primary optical element 41 to form a light spot. A portion of the light passes through the beam splitter 3 to the reflector 5, and after being reflected by the reflector 5, it is dimmed by the dimming component 6 or directly incident on the corresponding light-incident surface 43 of the second primary optical element 42. Finally, it is projected through the light-emitting surface 44 of the second primary optical element 42 to form a light spot. Multiple light spots are arranged and superimposed in sequence to form the light pattern corresponding to the lighting function or signal light function required by the vehicle lamp module of the present invention.
[0064] As a preferred embodiment of the vehicle lamp optical structure and vehicle lamp module of the present invention, the vehicle lamp optical structure includes a first primary optical element 1, a beam splitter 3, a dimming assembly 6, and a first primary optical element 41 arranged sequentially from back to front. A reflector 5 is arranged above the beam splitter 3, and a second primary optical element 2 is arranged below it. The dimming assembly 6 and the second primary optical element 42 are arranged sequentially in front of the reflector 5. The reflector 5 is a plane mirror, the beam splitter 3 is a beam splitter plate, and the first primary optical element 1 includes a first primary element light-incident section and a first primary element light-guiding section 1 arranged sequentially from back to front. The first primary element light-emitting section includes a first primary element light-incident section comprising a plurality of first primary element light-concentrating structures 11 arranged in a left-right direction toward the first primary element light guide section 12, and a first primary element convex surface 13 corresponding to the first primary element light-concentrating structure 11 formed on the first primary element light-emitting section; the second primary optical element 2 includes a second primary element light-incident section, a second primary element light guide section 22, and a second primary element light-emitting section arranged sequentially in a direction toward the beam splitter 3, the second primary element light-incident section comprising a plurality of second primary element light guide sections 22 arranged in a left-right direction toward the second primary element light guide section 22. The primary element has a focusing structure 21, and the light-emitting part of the second primary element has a second primary element convex surface 23 that corresponds one-to-one with the second primary element focusing structure 21; the number of first primary element focusing structures 11 and second primary element focusing structures 21 is the same, and the light source 7 is configured to correspond one-to-one with the first primary element focusing structure 11 and the second primary element focusing structure 21, and the first primary element convex surface 13 and the second primary element convex surface 23 are respectively configured to protrude towards the beam splitter 3; the first primary optical element 41 and the second primary optical element 42 are formed into a secondary optical assembly 4, and the first primary optical element 41 and the second primary optical element 42 are formed into a secondary optical assembly 4. The secondary optical element 42 includes the same number of light-incident surfaces 43 and light-outceasing surfaces 44 as the primary element focusing structure 11. The multiple light-incident surfaces 43 are respectively configured as rearward convex curved surfaces, and the light-outceasing surfaces 44 are configured as smooth curved surfaces formed by sweeping a vertical generatrix along a set curve. The vertical generatrix is a forward convex curve. The dimming assembly 6 in front of the beam splitter 3 includes a rotating shaft 61 and a DRL light-transmitting plate and a low-light shielding plate respectively connected to the rotating shaft 61. The dimming assembly 6 in front of the reflector 5 includes a rotating shaft 61 and a DRL light-transmitting plate and a turn signal light light-transmitting plate respectively connected to the rotating shaft 61.
[0065] Based on the vehicle lamp optical structure and lamp module described in the above specific embodiments, different lighting modes or signal light modes can be selected during use: such as... Figure 7As shown, when both the reflector 5 and the beam splitter 3 use DRL light-transmitting plates for their dimming components 6, when each light source 7 is turned on, the light emitted from the light source 7 corresponding to the focusing structure 11 of the first primary element is focused and collimated by the focusing structure and then transmitted by the light guide part 12 of the first primary element to the corresponding convex surface 13 of the first primary element. After being focused by the convex surface 13 of the first primary element, the light is emitted to the beam splitter 3. Part of the light passes through the beam splitter 3, and after being dimmed by the DRL light-transmitting plate, it is emitted to the corresponding light-incident surface 43 on the first primary optical element 41. Finally, it is projected through the light-exit surface 44 of the first primary optical element 41 to form a light spot. Part of the light is reflected by the beam splitter 3 to the reflector 5, and after being reflected by the reflector 5, it is dimmed by the DRL light-transmitting plate and emitted to the corresponding light-incident surface 43 on the second primary optical element 42. Finally, it is projected through the light-exit surface 44 of the second primary optical element 42 to form a light spot. The light emitted from the light source 7 corresponding to the light-concentrating structure 21 of the two primary elements is focused and collimated by the light-concentrating structure and then transmitted by the light guide part 22 of the second primary element to the corresponding convex surface 23 of the second primary element. After being focused by the convex surface 23 of the second primary element, the light is emitted to the beam splitter 3. A portion of the light is reflected by the beam splitter 3 and then dimmed by the DRL light-transmitting plate before being emitted to the corresponding light-incident surface 43 of the first primary optical element 41. Finally, it is projected through the light-exiting surface 44 of the first primary optical element 41 to form a light spot. A portion of the light passes through the beam splitter 3 to the reflector 5, and after being reflected by the reflector 5, it is dimmed by the DRL light-transmitting plate before being emitted to the corresponding light-incident surface 43 of the second primary optical element 42. Finally, it is projected through the light-exiting surface 44 of the second primary optical element 42 to form a light spot. Multiple light spots are arranged and superimposed in sequence to form the light pattern corresponding to the lighting function or signal light function required by the vehicle lamp module of the present invention.
[0066] like Figure 8 As shown, the reflector 5 is positioned in front of a DRL light-transmitting plate. By adjusting the dimming assembly 6 in front of the beam splitter 3, the corresponding rotating shaft 61 is rotated to adjust the low beam shading plate to the front of the beam splitter 3, thus turning on each light source 7 and enabling both low beam and daytime running light functions. Figure 9 As shown, the beam splitter 3 has a low beam shield in front of it. By adjusting the dimming assembly 6 in front of the reflector 5, the corresponding rotating shaft 61 is rotated so that the turn signal light-transmitting plate is adjusted to the front of the reflector 5, turning on each light source 7, thus realizing the functions of low beam and turn signal lights; as shown Figure 10 As shown, the reflector 5 is positioned in front of a DRL light-transmitting plate. Adjusting the dimming assembly 6 in front of the beam splitter 3 rotates the corresponding shaft 61 so that the dimming element 62 is horizontal. This means the light emitted from the beam splitter 3 does not pass through any dimming element 62, turning on each light source 7 and enabling high beam and daytime running light functions. Figure 11As shown, the dimming assembly 6 in front of the beam splitter 3 remains horizontal. Adjusting the dimming assembly 6 in front of the reflector 5 rotates the corresponding shaft 61, causing the turn signal light-transmitting plate to be adjusted to the front of the reflector 5, thus turning on each light source 7 and realizing the functions of high beam and turn signal light. This specific embodiment of the invention can simultaneously integrate daytime running lights, turn signals, high beam, and low beam functions into one module, avoiding situations where other signal light functions in the same module cannot be realized under high and low beam modes. At this time, the secondary optical assembly 4 forms two rows of light guide-type lenses, which are aesthetically pleasing and can increase the number of pixels for high and low beam without increasing the opening size of the secondary optical assembly 4, facilitating the implementation of ADB (Adaptive Dash) functionality.
[0067] Based on the above-described vehicle light optical structure and vehicle light module of the present invention, the present invention also provides a vehicle, which therefore has at least all the beneficial effects brought about by the technical solutions of the above-described vehicle light optical structure and vehicle light module embodiments, and will not be repeated here.
[0068] As can be seen from the above description, in the vehicle lamp optical structure of the present invention, the light received by the first primary optical element 1 and the second primary optical element 2 can be emitted to the beam splitter 3. After being split by the beam splitter 3, a portion of the light emitted by the first primary optical element 1 can be transmitted through the beam splitter 3 to the first primary optical element 41 for projection, and a portion of the light emitted by the second primary optical element 2 can be reflected by the beam splitter 3 to the first primary optical element 41 for projection. Thus, the light received by the first primary optical element 1 and the second primary optical element 2 can be transmitted to the first primary optical element 41, thereby increasing the number of pixels in the vehicle lamp without increasing the opening size of the first primary optical element 41, which facilitates the implementation of ADB function.
[0069] In a preferred embodiment of the present invention, a reflector 5 is provided on the side of the beam splitter 3 away from the second primary optical element 2, so that a portion of the light emitted from the first primary optical element 1 that is reflected by the beam splitter 3 is reflected by the reflector 5 to the second primary optical element 42, and a portion of the light emitted from the second primary optical element 2 that passes through the beam splitter 3 is also reflected by the reflector 5 to the second primary optical element 42, which can further increase the number of pixels of the vehicle lamp; the setting of the dimming component 6 enables the vehicle lamp optical structure to realize multiple vehicle lamp lighting functions such as DRL, turn signal light, low beam, high beam and / or signal light function, realizing the integration of multiple lighting functions on the same module and reducing the cost of other vehicle lamp functions.
[0070] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.
Claims
1. An optical structure for automotive lamps, characterized in that, The device includes a first primary optical element (1), a beam splitter (3), and a first primary optical element (41) arranged sequentially from back to front. A second primary optical element (2) is arranged above or below the beam splitter (3). The beams projected by the first primary optical element (1) and the second primary optical element (2) through the same first primary optical element can increase the number of pixels of the headlight and realize the high beam ADB function. The beam splitter (3) can reflect part of the light received on either side and transmit part of it. The first primary optical element (1) is arranged so that part of its emitted light can be transmitted through the beam splitter (3) to the first primary optical element (41) and projected through the first primary optical element (41). The second primary optical element (2) is arranged so that part of its emitted light can be reflected by the beam splitter (3) to the first primary optical element (41) and projected through the first primary optical element (41).
2. The automotive lamp optical structure according to claim 1, characterized in that, A reflector (5) is provided on the side of the beam splitter (3) away from the second primary optical element (2). A second-stage optical element (42) is provided in front of the reflector (5). Part of the light emitted from the first primary optical element (1) can be reflected by the beam splitter (3) to the reflector (5) and then reflected by the reflector (5) to the second-stage optical element (42) for projection. Part of the light emitted from the second primary optical element (2) can be transmitted through the beam splitter (3) to the reflector (5) and then reflected by the reflector (5) to the second-stage optical element (42) for projection.
3. The automotive lamp optical structure according to claim 2, characterized in that, A dimming assembly (6) is provided between the reflector (5) and the secondary optical element (42) and / or between the beam splitter (3) and the primary optical element (41).
4. The automotive lamp optical structure according to claim 3, characterized in that, The dimming assembly (6) includes a rotating shaft (61) and at least one dimming element (62). The dimming element (62) is a light-shielding plate or a light-transmitting plate. The dimming element (62) is mounted on the rotating shaft (61) so that the light incident on the dimming assembly (6) can be selectively passed through one of the dimming elements (62) or not passed through either dimming element (62) by rotation, and then emitted to the first-stage optical element (41) or the second-stage optical element (42) for projection, thereby realizing the corresponding lighting function or signal light function.
5. The automotive lamp optical structure according to claim 4, characterized in that, The dimming assembly (6) includes two dimming elements (62), the two dimming elements (62) are made of different materials and / or have different shapes, and the rotating shaft (61) is arranged in a horizontal direction.
6. The automotive lamp optical structure according to any one of claims 2 to 5, characterized in that, The first primary optical element (1) includes a first primary element light-incident section, a first primary element light-guide section (12) and a first primary element light-exit section arranged sequentially from back to front. The first primary element light-incident section includes a plurality of first primary element light-focusing structures (11) facing the first primary element light-guide section (12) and arranged in the left-right direction. The first primary element light-exit section has a first primary element convex surface (13) that corresponds one-to-one with the first primary element light-focusing structure (11). The second primary optical element (2) includes a second primary element light-incident section, a second primary element light-guide section (22), and a second primary element light-exit section arranged sequentially in the direction toward the beam splitter (3). The second primary element light-incident section includes a plurality of second primary element light-focusing structures (21) arranged in the left-right direction toward the second primary element light-guide section (22). The second primary element light-exit section has a second primary element convex surface (23) that corresponds one-to-one with the second primary element light-focusing structure (21). The first primary element convex surface (13) and the second primary element convex surface (23) are respectively configured to protrude toward the beam splitter (3).
7. The automotive lamp optical structure according to claim 6, characterized in that, The first-stage optical element (41) and the second-stage optical element (42) each include multiple light-incident surfaces (43) and one light-out surface (44). The light-incident surfaces (43) are configured to correspond one-to-one with the light-concentrating structure (11) of the first primary element or one-to-one with the light-concentrating structure (21) of the second primary element. The multiple light-incident surfaces (43) are respectively configured as rearward convex curved surfaces. The light-out surface (44) is configured as a smooth curved surface formed by sweeping a vertical generatrix along a set curve. The vertical generatrix is a forward convex curve.
8. The automotive lamp optical structure according to any one of claims 2 to 5, characterized in that, The reflector (5) is a plane mirror or a curved mirror.
9. The automotive lamp optical structure according to any one of claims 1 to 5, characterized in that, The beam splitter (3) is a beam splitter prism or a beam splitter plate.
10. A vehicle headlight module, characterized in that, Includes the vehicle lamp optical structure and light source (7) according to any one of claims 1 to 9, wherein the light source (7) is configured correspondingly to the first primary optical element (1) and the second primary optical element (2).
11. The vehicle headlight module according to claim 10, characterized in that, The vehicle lamp optical structure is the vehicle lamp optical structure as described in claim 6 or 7, and the light source (7) is configured in a one-to-one correspondence with the first primary element focusing structure (11) and the second primary element focusing structure (21).
12. A vehicle, characterized in that, Includes the vehicle lighting module according to claim 10 or 11.