Condensation element, vehicle lamp module and vehicle lamp
By forming a fill light structure on the focusing structure and using the fill light reflection surface to reflect light to the projection lens, the problem of poor edge effect of the LED surface light source spot is solved, and high brightness and a complete bottom boundary of the lighting light pattern are achieved.
Patent Information
- Application Number
- CN202410333277.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-09-23
AI Technical Summary
In the prior art, after the center position of the light spot of the LED surface light source is determined, the edge of the light spot cannot achieve the ideal effect, especially when the light incident surface of the secondary optical element is small, resulting in light loss and insufficient brightness of the lighting light type, and missing bottom boundary.
A fill light structure is formed integrally on the focusing structure, and a fill light reflective surface is used to reflect part of the light to the projection lens, thereby optimizing the bottom boundary of the lighting light pattern and improving brightness and integrity.
Through the design of the fill light structure, the brightness of the lighting light pattern and the integrity of the bottom boundary are improved, the problems of light loss and uncontrollable bottom boundary are solved, and the light output effect is optimized.
Smart Images
Figure CN120684674A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a vehicle lamp, and more particularly, to a focusing element. In addition, the present application also relates to a vehicle lamp module and a vehicle lamp. Background Art
[0002] Theoretically, a concentrator will focus light from a point source into a single spot. However, because LEDs are similar to surface light sources, the resulting light diffuses into a single spot. Therefore, in existing automotive lighting designs, the center of this spot is used to determine the height of the concentrator, and the edge of the spot corresponds to the boundary of the illumination pattern.
[0003] It can be seen that due to the influence of the height of the concentrator itself and the size of the light entrance surface of the secondary optical element (such as the projection lens), the edge of the lighting light pattern often fails to achieve the ideal effect. In particular, when the light entrance surface of the secondary optical element is small, the light converged by the concentrator will be lost because the light entrance surface of the secondary optical element is too small and part of the light cannot enter the light entrance surface of the secondary optical element. At this time, the lighting light pattern will be insufficient in brightness and the light pattern at the edge of the lighting light pattern will be missing.
[0004] Based on the above reasons, it is difficult to effectively ensure the use effect of the concentrator with the existing technology. Summary of the Invention
[0005] The problem to be solved in the first aspect of the present application is to provide a focusing element, which has a fill light structure integrally formed on the focusing structure, thereby optimizing the bottom boundary of the lighting light pattern, achieving good light output effect and high brightness of the lighting light pattern.
[0006] The problem to be solved in the second aspect of the present application is to provide a vehicle lamp module, which has a simple structure, good light output effect, high brightness of the lighting light pattern and a complete bottom boundary of the lighting light pattern.
[0007] In addition, the problem to be solved in the third aspect of this application is to provide a car lamp with a simple structure, good light output effect, high brightness of the lighting light pattern and a complete bottom boundary of the lighting light pattern.
[0008] In order to solve the above-mentioned technical problems, the first aspect of the present application provides a focusing element, comprising a plurality of focusing structures, at least one of the focusing structures having an integrally formed fill light structure, the fill light structure comprising a fill light structure main body integrally formed on the outer peripheral surface of the focusing structure, the surface of the fill light structure main body being formed as a fill light reflecting surface so as to be able to reflect part of the light incident into the fill light structure.
[0009] Preferably, the fill light structure body is integrally formed on the upper peripheral surface of the light-concentrating structure, and the upper surface of the fill light structure body is formed as the fill light reflecting surface.
[0010] Preferably, the plurality of light-concentrating structures are formed into at least one row, and the single light-filling structure is integrally formed on the upper side of the single light-concentrating structure.
[0011] Preferably, the light-concentrating structure is formed as a light-concentrating cup with a light-entering end being a concave cavity, and the bottom of the concave cavity is formed as a convex curved surface; or
[0012] The light-concentrating structure is formed as a solid light-concentrating cup, and the light-incident surface of the light-concentrating cup is a plane, an outward convex curved surface, or an inward concave curved surface.
[0013] Preferably, the reflecting surface is formed as a plane, and an angle α1 between the plane and a reference plane passing through the central axis of the focusing structure is 10-65°.
[0014] Preferably, the fill-light reflecting surface is formed as a curved surface, and an angle α2 between a plane where a tangent line of the curved surface is located and a reference plane passing through the central axis of the focusing structure is 10-75°.
[0015] Preferably, a vertical distance D1 between the rear edge of the fill light reflective surface and the light incident edge of the light focusing structure is 0-7 mm;
[0016] And / or, a vertical distance D2 between a rear end edge of the fill-light reflective surface and an intersection line of the fill-light structure main body and the light-focusing structure is 0-4.5 mm.
[0017] Preferably, the fill light reflecting surface is formed as a plane or a curved surface that is inclined downward from front to back.
[0018] The second aspect of the present application also provides a vehicle lamp module, comprising a light source, a focusing element according to any one of the technical solutions of the first aspect, and a projection lens, wherein the light source and the focusing structure are arranged in a one-to-one correspondence, and after the light emitted by the light source enters the focusing structure, part of the light is reflected by the fill light structure and then emitted through the projection lens.
[0019] In addition, the third aspect of the present application also provides a vehicle lamp, comprising the vehicle lamp module according to the technical solution of the second aspect.
[0020] The light concentrating element of the present application has the following advantages:
[0021] The focusing element of the present application uses a fill-light structure integrally formed on the focusing structure, and utilizes the fill-light reflective surface on the fill-light structure to direct part of the light incident on the peripheral reflective surface of the original focusing structure onto the fill-light reflective surface. After being reflected by the fill-light reflective surface, the light is reflected onto the projection lens, ultimately forming an illumination light pattern. The bottom boundary of the illumination light pattern is complete and the brightness of the illumination light pattern is high, thereby solving the problem of the bottom boundary of the illumination light pattern being too high when the projection lens is too small, and also solving the problem of the bottom boundary of the illumination light pattern formed by the focusing structure being uncontrollable. In addition, since the light reflected by the fill-light structure is a part of the light that exceeds the light incident range of the light incident surface of the projection lens after reflection in the original focusing structure, it is a part of the light that is lost. This part of the lost light forms the bottom boundary of the illumination light pattern after passing through the fill-light structure, thereby effectively improving the optical efficiency and optimizing the light output effect.
[0022] Other advantages of the present application and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a light path diagram of a specific embodiment of a vehicle light module in the prior art;
[0024] Figure 2 yes Figure 1 A schematic diagram of the lighting pattern of the vehicle light module;
[0025] Figure 3 is a structural schematic diagram of a specific embodiment of the light-concentrating element of the present application;
[0026] Figure 4 yes Figure 3 Front view of
[0027] Figure 5 is a cross-sectional schematic diagram of a specific embodiment of the light-concentrating structure of the present application;
[0028] Figure 6 is a cross-sectional schematic diagram of another specific embodiment of the light-concentrating structure of the present application;
[0029] Figure 7 This is a light path diagram of a specific embodiment of the vehicle light module of the present application;
[0030] Figure 8 yes Figure 7 Schematic diagram of the lighting light pattern of the vehicle light module.
[0031] Description of Reference Numerals
[0032] 1 focusing element 101 focusing structure
[0033] 102 fill light structure 1021 fill light structure main body
[0034] 1022 fill light reflector 2 light sources
[0035] 3 Projection lens 4 Focal plane
[0036] 5 Old virtual image boundary 6 Supplemented virtual image boundary
[0037] 7 Main ray 8 Lost ray
[0038] 9. Fill Light DETAILED DESCRIPTION
[0039] The specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to illustrate and explain the present application, and the scope of protection of the present application is not limited to the specific implementation methods described below.
[0040] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed" and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0041] In the description of this application, it is necessary to explain that some directional words involved in the following description to clearly illustrate the technical solution of this application, such as "up", "down", "left", "right", etc., are based on the normal use orientation of the headlight module. "Front" refers to the direction of light emission, "rear" refers to the direction opposite to "front", and "up" and "down" refer to the vertical orientation of the headlight module after it is assembled on the vehicle. The terms are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on this application.
[0042] like Figure 3 and Figure 4 As shown, the first aspect of the present application provides a focusing element, including multiple focusing structures 101, at least one of the focusing structures 101 has a fill light structure 102 integrally formed thereon, the fill light structure 102 includes a fill light structure main body 1021 integrally formed on the outer peripheral surface of the focusing structure 101, and the surface of the fill light structure main body 1021 is formed as a fill light reflecting surface 1022, so as to be able to reflect part of the light incident into the fill light structure 102.
[0043] In the present application, a plurality of focusing structures 101 are integrally formed on the focusing element 1. Depending on actual light output requirements, a fill light structure 102 is selectively provided on one or more of the focusing structures 101. Preferably, the focusing structure 101 and the corresponding fill light structure 102 are integrally formed. Specifically, a fill light structure body 1021 is integrally formed on the outer periphery of the focusing structure 101, preferably the upper outer periphery of the focusing structure 101. The surface of the fill light structure body 1021, preferably the upper surface of the fill light structure body 1021, is provided as a fill light reflective surface 1022. Considering the function of the focusing element 1 in the vehicle light module, the fill light structure 102, integrally formed on the outer periphery of the focusing structure 101, can alter the optical path of a portion of light originally reflected by the outer periphery of the focusing structure 101. This portion of reflected light, which would otherwise not have entered the projection lens 3, is instead directed to the projection lens 3, thereby projecting onto the desired illumination pattern area, particularly the bottom boundary of the illumination pattern. This improves the brightness and integrity of the illumination pattern, thereby meeting regulatory requirements. Furthermore, it can be seen that the light reflected by the fill light reflective surface 1022 can enter the projection lens 3 without changing the size of the light incident surface of the projection lens 3, and the bottom boundary of the resulting illumination light pattern is complete and does not "shrink" upward, thus solving the problem of the bottom boundary of the illumination light pattern being too high when using a small-sized projection lens 3 and failing to meet the regulatory requirements for the light pattern. In addition, due to the use of the fill light structure 102, the bottom boundary of the illumination light pattern is more adjustable, optimizing the bottom boundary shape and energy distribution of the illumination light pattern. Specifically, Figure 2 The lighting pattern with obvious bottom boundary "shrinking" upward and missing light pattern in the prior art shown in FIG is optimized as follows: Figure 8 The lighting pattern shown.
[0044] As a preferred embodiment of the present application, the fill light structure body 1021 is integrally formed on the upper peripheral surface of the light-concentrating structure 101 , and the upper surface of the fill light structure body 1021 is formed as a fill light reflecting surface 1022 .
[0045] In a preferred embodiment of the present application, the focusing structures 101 are formed into two rows along the left and right directions, and the fill light structure 102 is integrally formed on the upper outer peripheral surface of one of the rows. Preferably, the fill light structure 102 is integrally formed on multiple focusing structures 101 located in the top row and in the central area, and the upper surface of the fill light structure main body 1021 is formed as a fill light reflection surface 1022.
[0046] As a preferred embodiment of the present application, a plurality of light-concentrating structures 101 are formed into at least one row, and a single fill light structure 102 is integrally formed on the upper side of the single light-concentrating structure 101 .
[0047] In a preferred embodiment of the present application, Figure 5 and Figure 6 As shown, when the focusing structure 101 is in the horizontal position shown in the figure, the fill light structure 102 is located on the upper side of the focusing structure 101, thereby changing the optical path of the light originally reflected by the outer peripheral surface of the focusing structure 101 at this position. This part of the light may originally exceed the range of the light incident surface of the projection lens 3, or may be reflected by the side of the projection lens 3 to form stray light, and may also be reflected by the side of the projection lens 3 to form interference light that interferes with the normal lighting light pattern.
[0048] It should be noted that Figure 5 and Figure 6 The position of the focusing structure 101 in the figure is not the position in actual use state, and the directional words involved in this application are also in Figure 5 and Figure 6 The dotted line in the figure is the central axis of the light-focusing structure 101, and the plane passing through the central axis is the reference plane for describing the angles α1 and α2 below.
[0049] As a preferred embodiment of the present application, the light-concentrating structure 101 is formed as a light-concentrating cup with a light-incident end being a concave cavity, and the bottom of the concave cavity is formed as a convex curved surface.
[0050] Optionally, the light-concentrating structure 101 is formed as a light-concentrating cup of a solid structure, and the light-incident surface of the light-concentrating cup is a plane, an outward convex curved surface, or an inward concave curved surface.
[0051] In a preferred embodiment of the present application, the specific structural form of the focusing structure 101 is not limited to the above-described structure, and may also be other structural forms, as long as they can meet the requirements of converging light, and are all within the scope of protection of the present application. In addition, as a preferred embodiment of the focusing structure 101, the outer peripheral surface of the focusing structure 101 is formed as a focusing reflective surface to converge the light and then emit it toward the projection lens 3.
[0052] As a preferred embodiment of the present application, Figure 5 As shown, the supplementary light reflecting surface 1022 is formed as a plane, and the angle α1 between the plane and a reference plane passing through the central axis of the focusing structure 101 is 10-65°.
[0053] As a preferred embodiment of the present application, Figure 6 As shown, the fill light reflecting surface 1022 is formed as a curved surface, and the angle α2 between the plane where the tangent line of the curved surface is located and the reference plane passing through the central axis of the focusing structure 101 is 10-75°.
[0054] In a preferred embodiment of the present application, the fill-light reflecting surface 1022 is formed as an outward convex surface, which is a free-form surface, and the arch height of the central area of the outward convex surface is greater than the arch height of the surrounding areas.
[0055] As a preferred embodiment of the present application, a vertical distance D1 between the rear edge of the supplemental light reflecting surface 1022 and the light incident edge of the focusing structure 101 is 0-7 mm.
[0056] As a preferred embodiment of the present application, a vertical distance D2 between the rear end edge of the fill light reflective surface 1022 and the intersection line of the fill light structure main body 1021 and the focusing structure 101 is 0-4.5 mm.
[0057] As a preferred embodiment of the present application, the supplemental light reflecting surface 1022 is formed as a plane or a curved surface that is inclined downward from the front to the back.
[0058] In a preferred embodiment of the present application, the front end of the fill light reflecting surface 1022 is higher than the rear end, so that the light incident on the fill light reflecting surface 1022 can be emitted in a direction nearly parallel to the central axis of the focusing structure 101.
[0059] like Figure 7 As shown, the second aspect of the present application provides a vehicle lamp module, comprising a light source 2, a focusing element 1 according to any one of the technical solutions of the first aspect, and a projection lens 3. The light source 2 is arranged in a one-to-one correspondence with the focusing structure 101. After the light emitted by the light source 2 enters the focusing structure 101, part of the light is reflected by the fill light structure 102 and then emitted through the projection lens 3.
[0060] like Figure 1 and Figure 2 As shown in FIG. 1 , it illustrates the defects in the light forming process of the conventional vehicle lamp module. Specifically, a focal plane 4 is formed between the focusing element 1 and the projection lens 3. The upper and lower points where the elliptical dotted line at the focal plane 4 intersects with the focal plane 4 are the old virtual image boundaries 5. Figure 1 The solid line light shown in the figure is the main light 7, and the dotted line light is the loss light 8. It can be seen that after part of the light emitted by the light source 2 is reflected by the focusing structure 101, part of it directly exceeds the light incident surface range of the projection lens 3 due to the small size of the light incident surface of the projection lens 3. This part of the light is the loss light 8. Another part of the light is reflected by the side of the projection lens 3 and projected obliquely upward toward the light exit surface of the projection lens 3. This part of the light has exceeded the imaging range of the illumination light type and may also affect the illumination effect. It is stray light. Figure 2It can be seen that both parts of light are reflected from the outer peripheral surface of the front half of the focusing structure 101. In addition, if the light incident surface of the projection lens 3 is not large enough, the light emitted through the focusing structure 101 will have the following problems: First, due to the large angle, the loss light 8 cannot enter the lower half of the projection lens 3, and then cannot be projected by the projection lens 3 into the illumination light pattern, resulting in insufficient brightness of the illumination light pattern. Second, the loss light 8 cannot reach the bottom boundary of the illumination light pattern, which is manifested as a light pattern loss that "shrinks" upward at the bottom boundary of the illumination light pattern. Therefore, in order to address the above defects, Figure 7 and Figure 8 As can be seen from the figure, the present application adds a fill light structure 102, which is arranged on the outer peripheral surface of the focusing structure 101, preferably on the upper outer peripheral surface of the focusing structure 101, and the fill light structure 102 has a fill light reflecting surface 1022, and the fill light reflecting surface 1022 is formed as a plane or a curved surface inclined downward from front to back, so that the light incident on the fill light reflecting surface 1022 can be reflected along the transmission path of the main light 7 to the projection lens 3, and projected onto the illumination light pattern area, especially the bottom boundary area of the illumination light pattern, which can not only improve the brightness of the illumination light pattern, but also solve the problems of the bottom boundary of the illumination light pattern "shrinking" upward (the position is too high), the bottom boundary light pattern missing, and the problem that the bottom boundary of the illumination light pattern cannot be adjusted due to the structural defects of the focusing element 1, under the premise that the size of the projection lens 3 is small and its size is not changed, thereby optimizing the illumination light pattern and improving the light output effect.
[0061] Figure 7 , the supplementary light 9 formed after being reflected by the supplementary light reflecting surface 1022 is shown in FIG. , and the intersection position of the supplementary light 9 and the focal plane 4 forms the virtual image boundary 6 after the supplementary light is reflected.
[0062] In addition, the third aspect of the present application further provides a vehicle lamp, comprising a vehicle lamp module according to any one of the technical solutions of the second aspect.
[0063] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.
[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.
[0065] In addition, the various implementation methods of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.
Claims
1. A light concentrating element, characterized in that: The invention comprises a plurality of light-concentrating structures (101), wherein a fill-light structure (102) is integrally formed on at least one of the light-concentrating structures (101), wherein the fill-light structure (102) comprises a fill-light structure main body (1021) integrally formed on the outer peripheral surface of the light-concentrating structure (101), and a surface of the fill-light structure main body (1021) is formed as a fill-light reflecting surface (1022) so as to reflect part of the light incident into the fill-light structure (101).
2. The light concentrating element according to claim 1, wherein The fill-light structure main body (1021) is integrally formed on the upper peripheral surface of the light-concentrating structure (101), and the upper surface of the fill-light structure main body (1021) is formed as the fill-light reflecting surface (1022).
3. The light concentrating element according to claim 1, wherein The plurality of light-concentrating structures (101) are formed into at least one row, and the single light-filling structure (102) is integrally formed on the upper side of the single light-concentrating structure (101).
4. The light concentrating element according to claim 1, wherein The light-concentrating structure (101) is formed as a light-concentrating cup with a light-entering end being a concave cavity, and the bottom of the concave cavity is formed as a convex curved surface; or The light-concentrating structure (101) is formed as a light-concentrating cup of a solid structure, and the light-incident surface of the light-concentrating cup is a plane, an outward convex curved surface, or an inward concave curved surface.
5. The light concentrating element according to claim 2, wherein: The supplementary light reflecting surface (1022) is formed as a plane, and an angle α1 between the plane and a reference plane passing through the central axis of the focusing structure (101) is 10-65°.
6. The light concentrating element according to claim 2, wherein: The supplementary light reflecting surface (1022) is formed as a curved surface, and the angle α2 between the plane where the tangent line of the curved surface is located and the reference plane passing through the central axis of the focusing structure (101) is 10-75°.
7. The light concentrating element according to any one of claims 1 to 6, characterized in that: A vertical distance D1 between the rear edge of the supplementary light reflecting surface (1022) and the light incident edge of the light focusing structure (101) is 0-7 mm; And / or, a vertical distance D2 between the rear end edge of the fill light reflective surface (1022) and the intersection line of the fill light structure main body (1021) and the light focusing structure (101) is 0-4.5 mm.
8. The light concentrating element according to any one of claims 1 to 5, characterized in that The supplementary light reflecting surface (1022) is formed as a plane or a curved surface that is inclined downward from front to back.
9. A vehicle light module, characterized in that: The invention comprises a light source (2), a focusing element (1) according to any one of claims 1 to 8, and a projection lens (3), wherein the light source (2) and the focusing structure (101) are arranged in a one-to-one correspondence, and after the light emitted by the light source (2) enters the focusing structure (101), part of the light is reflected by the fill light structure (102) and then emitted through the projection lens (3).
10. A vehicle lamp, characterized in that: The vehicle light module comprises the vehicle light module according to claim 9.