A vehicle lamp illumination device, vehicle lamp, and vehicle

Abstract

The utility model discloses a kind of vehicle light illumination device, vehicle light and vehicle, including at least five optical systems, each optical system includes light source, reflecting bowl, baffle and lens, light emitted by light source is reflected by reflecting bowl and is emitted by lens, the light reflected by the reflecting bowl of baffle shielding part is emitted by lens, first optical system is used for the illumination of the right side first distance range of vehicle driving direction, second optical system is used for the illumination of vehicle driving direction third distance range, third optical system is used for the illumination of vehicle driving direction second distance range, fourth optical system is used for the illumination of the left side first distance range of vehicle driving direction, fifth optical system is used for the illumination of vehicle driving direction second distance range, third distance range is greater than second distance range, second distance range is greater than first distance range. The utility model embodiment realizes miniaturization, keeps high performance, and can be widely applied in vehicle lighting technical field.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a vehicle lighting device, a vehicle lamp, and a vehicle. Background Technology

[0002] In recent years, with the rapid development of the automotive industry, high and low beam modules have become smaller and narrower, but they still need to meet the high-performance road lighting requirements of the entire vehicle. Traditional ellipsoidal and parabolic reflector-type modules are relatively large in size. Due to the limitations of their physical structure, they cannot combine miniaturization and high performance in a limited space. In other words, miniaturization inevitably leads to a reduction in performance. Utility Model Content

[0003] In view of this, the purpose of this utility model embodiment is to provide a vehicle lighting device, a vehicle lamp, and a vehicle that achieves miniaturization while maintaining high performance.

[0004] On one hand, this utility model embodiment provides a vehicle lighting device, including at least five optical systems. Each optical system includes a light source, a reflector, a baffle, and a lens. Light emitted by the light source is reflected by the reflector and then emitted by the lens. Light reflected by the reflector and partially blocked by the baffle is emitted by the lens. The first optical system is used for illumination within a first distance range to the right of the vehicle's direction of travel. The second optical system is used for illumination within a third distance range to the right of the vehicle's direction of travel. The third optical system is used for illumination within a second distance range to the left of the vehicle's direction of travel. The fourth optical system is used for illumination within a first distance range to the left of the vehicle's direction of travel. The fifth optical system is used for illumination within a second distance range to the left of the vehicle's direction of travel. The third distance range is greater than the second distance range, and the second distance range is greater than the first distance range.

[0005] Optionally, the light source is positioned at the first focal point of the reflector bowl, and the second focal point of the reflector bowl coincides with the focal point of the lens.

[0006] Optionally, the focal lengths of the reflector bowl and the lens in the first optical system satisfy the following condition:

[0007] 1mm≤f h11 ≤6mm

[0008] f h12 ≥15mm

[0009] 40mm≤f t1 ≤50mm

[0010] Among them, f h11 f represents the first focal length of the reflecting bowl in the first optical system. h12 f represents the second focal length of the reflecting bowl in the first optical system. t1This indicates the focal length of the lens in the first optical system.

[0011] Optionally, the focal lengths of the reflector bowl and the lens in the second optical system satisfy the following condition:

[0012] 1mm≤f h21 ≤10mm

[0013] f h22 ≥15mm

[0014] 35mm≤f t2 ≤45mm

[0015] Among them, f h21 f represents the first focal length of the reflecting bowl in the second optical system. h22 f represents the second focal length of the reflecting bowl in the second optical system. t2 This indicates the focal length of the lens in the second optical system.

[0016] Optionally, the focal lengths of the reflector bowl and lens in the third optical system satisfy the following condition:

[0017] 1mm≤f h31 ≤10mm

[0018] f h32 ≥15mm

[0019] 20mm≤f t3 ≤30mm

[0020] Among them, f h31 f represents the first focal length of the reflecting bowl in the third optical system. h32 f represents the second focal length of the reflecting bowl in the third optical system. t3 This indicates the focal length of the lens in the third optical system.

[0021] Optionally, the distance between the second optical system and the first and third optical systems in the vehicle's direction of travel is greater than a first preset distance.

[0022] Optionally, the distance between the second optical system and the first and third optical systems in the vertical direction of the vehicle's travel direction is greater than a second preset distance.

[0023] Optionally, the first to the fifth optical systems are arranged in a staggered manner in the vehicle's direction of travel.

[0024] On the other hand, this utility model embodiment also provides a vehicle light, including the above-described device.

[0025] On the other hand, this utility model embodiment provides a vehicle including the above-described vehicle lights.

[0026] The implementation of this utility model embodiment includes the following beneficial effects: Illumination is achieved through a first optical system at a first distance range to the right of the vehicle's direction of travel; illumination is achieved through a second optical system at a third distance range to the vehicle's direction of travel; illumination is achieved through a third optical system at a second distance range to the vehicle's direction of travel; illumination is achieved through a fourth optical system at a first distance range to the left of the vehicle's direction of travel; and illumination is achieved through a fifth optical system at a second distance range to the vehicle's direction of travel. The third distance range is greater than the second distance range, and the second distance range is greater than the first distance range. Thus, illumination is achieved through five optical systems in different directions and at different distances, enabling illumination at both near and far distances while maintaining high performance. Furthermore, miniaturization is achieved without changing the shape or increasing the size of the lamp, while limiting the module height and width, thus improving the overall road illumination performance of the lamp and reducing manufacturing difficulty and processing costs. Attached Figure Description

[0027] Figure 1 This is a light path diagram of a vehicle lighting device provided in an embodiment of this utility model;

[0028] Figure 2 This is a perspective view of a vehicle lighting device provided in an embodiment of this utility model;

[0029] Figure 3 This is an optical path diagram of an optical system in the vehicle height direction provided by an embodiment of the present invention;

[0030] Figure 4 This is an optical path diagram of a second optical system in the direction perpendicular to the vehicle's driving direction, provided in an embodiment of this utility model.

[0031] Figure 5 This is an optical path diagram of a first optical system and a fourth optical system in the direction perpendicular to the vehicle's driving direction, provided in an embodiment of this utility model.

[0032] Figure 6 This is a distribution diagram of a vehicle lighting device in the direction of vehicle travel provided by an embodiment of this utility model;

[0033] Figure 7 This is a light pattern diagram of a first optical system provided in an embodiment of the present invention;

[0034] Figure 8 This is a light pattern diagram of a second optical system provided in an embodiment of this utility model;

[0035] Figure 9 This is a light pattern diagram of a third optical system provided in an embodiment of the present invention;

[0036] Figure 10This is a light pattern diagram of a fourth optical system provided in an embodiment of the present invention;

[0037] Figure 11 This is a light pattern diagram of a fifth optical system provided in an embodiment of this utility model;

[0038] Figure 12 This is a light pattern diagram of the first to fifth optical systems combined according to an embodiment of the present invention. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0040] Road illumination: The ability of lights to illuminate the road surface, or the effect of paving.

[0041] Module: refers to the high and low beam optical module (or optical assembly).

[0042] A reflector bowl, also known as a reflector or mirror, is a device that can reflect light and can be curved, parabolic, ellipsoidal, or planar.

[0043] Lens aperture size: The effective optical range of a lens, or the size of the outer surface of the lens.

[0044] Baffle: Also known as a stop block, it is a major component in generating near-light and dark cutoff lines.

[0045] See Figure 1 , Figure 1 In the diagram, 0-1 represents the lens, 0-2 represents the light source, and 0-3 represents the radiating mirror. Because the lens module is large (blue lens), the light utilization rate is high, and the road illumination performance is relatively good. When the lens size is reduced to the size of the yellow dashed box (taking the commonly used 15mm as an example), the black and green light rays in the diagram cannot pass through the effective optical surface of the lens, thus resulting in reduced efficiency.

[0046] This utility model embodiment provides a vehicle lighting device, including at least five optical systems. Each optical system includes a light source, a reflector, a baffle, and a lens. Light emitted by the light source is reflected by the reflector and then emitted by the lens. Light reflected by the reflector and partially blocked by the baffle is emitted by the lens. The first optical system is used for illumination within a first distance range to the right of the vehicle's direction of travel. The second optical system is used for illumination within a third distance range to the right of the vehicle's direction of travel. The third optical system is used for illumination within a second distance range to the left of the vehicle's direction of travel. The fourth optical system is used for illumination within a first distance range to the left of the vehicle's direction of travel. The fifth optical system is used for illumination within a second distance range to the left of the vehicle's direction of travel. The third distance range is greater than the second distance range, and the second distance range is greater than the first distance range.

[0047] See Figure 2 , Figure 2 This is a three-dimensional view of a vehicle headlight illumination device. The first optical system includes a first reflector bowl (1-3), a first baffle (1-2), and a first lens (1-1); the second optical system includes a second reflector bowl (2-3), a second baffle (2-2), and a second lens (2-1); the third optical system includes a third reflector bowl (3-3), a third baffle (3-2), and a third lens (3-1); the fourth optical system includes a fourth reflector bowl (4-3), a fourth baffle (4-2), and a fourth lens (4-1); and the fifth optical system includes a fifth reflector bowl (5-3), a fifth baffle (5-2), and a fifth lens (5-1). D represents the width of the vehicle headlight illumination device, and H represents the height of the vehicle headlight illumination device.

[0048] The first to fifth reflecting bowls are integrally formed with the second, third, and fifth baffles; the first to fifth lenses are integrally formed. The first to fifth lenses adopt an unequal focal length design; the first to fifth reflecting bowls adopt an unequal focal length design.

[0049] The reflectors and lenses of the first and fourth optical systems are designed with small focal lengths to minimize their footprint in the vehicle's direction of travel and longitudinal direction. These systems primarily handle the diffusion of the luminaires, meeting the brightness and beam width requirements for near-field illumination. The second optical system addresses the vehicle's long-range illumination needs. The third and fifth optical systems handle the vehicle's medium-range illumination requirements.

[0050] Optionally, the light source is positioned at the first focal point of the reflector bowl, and the second focal point of the reflector bowl coincides with the focal point of the lens.

[0051] This embodiment uses parabolic or ellipsoidal methods to converge or diffuse light through a lens. (See also...) Figure 3 , Figure 3 This diagram illustrates the light rays from the first to the fifth optical systems along the vehicle's height. The reflector bowl (6-2) has a first focal point (6-1) and a second focal point (6-5). The light source is positioned at the first focal point (6-1). The second focal point (6-5) of the reflector bowl (6-2) coincides with the second focal point of the lens (6-4). A baffle (6-3) is positioned near the second focal point (6-5). After reflection by the reflector bowl (6-2), the light ray (P1) passes completely through the focal point of the lens (6-4), achieving light focusing and meeting the vehicle's long-distance illumination requirements. After reflection by the reflector bowl (6-2), the light ray (P1) deviates from the focal point of the lens (6-4), achieving light diffusion.

[0052] Optionally, the focal lengths of the reflector bowl and the lens in the first optical system satisfy the following condition:

[0053] 1mm≤f h11 ≤6mm

[0054] f h12 ≥15mm

[0055] 40mm≤f t1 ≤50mm

[0056] Among them, f h11 f represents the first focal length of the reflecting bowl in the first optical system. h12 f represents the second focal length of the reflecting bowl in the first optical system. t1 This indicates the focal length of the lens in the first optical system.

[0057] It should be noted that the focal lengths of the reflector bowls and lenses in the first and fourth optical systems are determined according to the actual application, and no specific restrictions are imposed in this embodiment.

[0058] In one specific embodiment, in the first optical system, the focal length of the first focal point of the first reflecting bowl is 2mm, the focal length of the second focal point is 20mm or more, and the focal length of the first lens is 45mm.

[0059] In one specific embodiment, in the fourth optical system, the focal length of the first focal point of the fourth reflecting bowl is 2mm, preferably 1 to 10mm, the focal length of the second focal point is 22mm, preferably 10mm or more, and the focal length of the fourth lens is 45mm.

[0060] Optionally, the focal lengths of the reflector bowl and the lens in the second optical system satisfy the following condition:

[0061] 1mm≤f h21 ≤10mm

[0062] f h22 ≥15mm

[0063] 35mm≤f t2 ≤45mm

[0064] Among them, f h21 f represents the first focal length of the reflecting bowl in the second optical system. h22 f represents the second focal length of the reflecting bowl in the second optical system. t2 This indicates the focal length of the lens in the second optical system.

[0065] It should be noted that the focal lengths of the reflector bowl and lens in the second optical system are determined according to the actual application, and no specific restrictions are imposed in this embodiment.

[0066] In one specific embodiment, in the second optical system, the focal length of the first focal point of the second reflecting bowl is 5mm, and the recommended focal length is 1 to 10mm; the focal length of the second focal point is 18mm; and the focal length of the second lens is 41mm.

[0067] Optionally, the focal lengths of the reflector bowl and lens in the third optical system satisfy the following condition:

[0068] 1mm≤f h31 ≤10mm

[0069] f h32 ≥15mm

[0070] 20mm≤f t3 ≤30mm

[0071] Among them, f h31 f represents the first focal length of the reflecting bowl in the third optical system. h32 f represents the second focal length of the reflecting bowl in the third optical system. t3 This indicates the focal length of the lens in the third optical system.

[0072] It should be noted that the focal lengths of the reflector bowls and lenses in the third and fifth optical systems are determined according to the actual application, and no specific restrictions are imposed in this embodiment.

[0073] In one specific embodiment, in the third optical system, the focal length of the first focal point of the third reflecting bowl is 4.5 mm, the focal length of the second focal point is 19 mm, and the focal length of the third lens is 25 mm.

[0074] In one specific embodiment, in the fifth optical system, the focal length of the first focal point of the fifth reflecting bowl is 5mm, the focal length of the second focal point is 15mm, and the focal length of the fifth lens is 25mm.

[0075] Optionally, the distance between the second optical system and the first and third optical systems in the vehicle's direction of travel is greater than a first preset distance.

[0076] Optionally, the distance between the second optical system and the first and third optical systems in the vertical direction of the vehicle's travel direction is greater than a second preset distance.

[0077] It should be noted that the first and second preset distances are determined based on actual applications, and this embodiment does not impose specific limitations. (See also...) Figure 4 , Figure 4This indicates the light path of the second optical system in the left-right direction of the vehicle. The light paths of the third and fifth optical systems are similar to those of the second optical system. The second optical system is placed between the first and third optical systems. Taking the distance between the light sources of the systems as an example, the distance between the light sources of the first and second optical systems in the direction of vehicle travel is H1. For example, H1 = 16mm, and a distance of 10mm or more is recommended. Through the reasonable use of the above optical structure, the light emitted from the second light source originating from the second optical system through the second reflector bowl can pass smoothly through the gap D1 between the first and third optical systems. In this embodiment, D1 = 20mm, and a distance of 5mm or more is recommended. No specific value is limited here. Through the implementation of the above optical structure, the second baffle, second reflector bowl, second light source, etc. in the second optical system can be smoothly placed between or in front of and behind the first and second reflector bowls.

[0078] Similarly, the fourth optical system adopts a similar structure, placing it between the third and fourth optical systems. The fourth reflector bowl in the fourth optical system is smaller, for example, with a focal length of 2mm. Here, the fourth reflector bowl is placed relatively forward between the third and fifth reflector bowls (forward or backward is not limited here and can be freely adjusted according to the optical structure). Again, taking the distance between the light sources in the third and fourth optical systems as an example, the distance here is 10mm, but a distance of 0mm or more is recommended.

[0079] See Figure 5 , Figure 5 This indicates the light paths of the first and fourth optical systems in the left-right direction of the vehicle. The first and fourth optical systems achieve the illumination requirements of large angles and close distances.

[0080] It should be noted that the second lens in the second system, the third lens in the third system, and the fifth lens in the fifth system include convex lenses, while the first lens in the first system and the fourth lens in the fourth system include concave lenses.

[0081] Optionally, the first to the fifth optical systems are arranged in a staggered manner in the vehicle's driving direction.

[0082] See Figure 6 By optimizing the optical structure, the reflectors are staggered in the direction of vehicle travel, reducing interference between them, improving space utilization, and meeting the design requirements of high energy output for narrow-width lamps.

[0083] In one specific embodiment, the light pattern of the first optical system is as follows: Figure 7 As shown, the light pattern diagram of the second optical system is as follows: Figure 8 As shown, the light pattern diagram of the third optical system is as follows: Figure 9As shown, the light pattern diagram of the fourth optical system is as follows: Figure 10 As shown, the light pattern diagram of the fifth optical system is as follows: Figure 11 As shown, the combined optical pattern of the first to fifth optical systems is as follows: Figure 12 As shown. From Figure 7-12 It can be seen that the first optical system provides illumination in the first direction, the second optical system provides illumination at the middle position, the third optical system provides illumination in the first direction, the fourth optical system provides illumination in the second direction, and the fifth optical system provides illumination in the second direction. The first to fifth optical systems, when combined, provide illumination in both the first and second directions. In this embodiment, the first and second directions can be understood as directions perpendicular to the vehicle's direction of travel, with the first direction being opposite to the second direction.

[0084] This utility model embodiment also provides a vehicle light, including the above-described device.

[0085] The vehicle lights include the aforementioned lighting devices, as well as power supplies, housings, and other components.

[0086] This utility model embodiment provides a vehicle including the aforementioned vehicle lights.

[0087] The vehicle includes the aforementioned headlights and the vehicle body. The vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. It can also be a commercial vehicle, such as a van, bus, small truck, or large semi-trailer. The vehicle can be a gasoline-powered vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0088] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more.

[0089] The implementation of this utility model embodiment includes the following beneficial effects: Illumination is achieved through a first optical system at a first distance range to the right of the vehicle's direction of travel; illumination is achieved through a second optical system at a third distance range to the vehicle's direction of travel; illumination is achieved through a third optical system at a second distance range to the vehicle's direction of travel; illumination is achieved through a fourth optical system at a first distance range to the left of the vehicle's direction of travel; and illumination is achieved through a fifth optical system at a second distance range to the vehicle's direction of travel. The third distance range is greater than the second distance range, and the second distance range is greater than the first distance range. Thus, illumination is achieved through five optical systems in different directions and at different distances, enabling illumination at both near and far distances while maintaining high performance. Furthermore, miniaturization is achieved without changing the shape or increasing the size of the lamp, while limiting the module height and width, thus improving the overall road illumination performance of the lamp and reducing manufacturing difficulty and processing costs.

[0090] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A vehicle lighting device, characterized in that, It includes at least five optical systems, each comprising a light source, a reflector, a baffle, and a lens. Light emitted from the light source is reflected by the reflector and then emitted by the lens. Light reflected by the reflector and partially blocked by the baffle is emitted by the lens. The first optical system is used for illumination within a first distance range to the right of the vehicle's direction of travel. The second optical system is used for illumination within a third distance range to the vehicle's direction of travel. The third optical system is used for illumination within a second distance range to the vehicle's direction of travel. The fourth optical system is used for illumination within a first distance range to the left of the vehicle's direction of travel. The fifth optical system is used for illumination within a second distance range to the vehicle's direction of travel. The third distance range is greater than the second distance range, and the second distance range is greater than the first distance range.

2. The apparatus according to claim 1, characterized in that, The light source is positioned at the first focal point of the reflector bowl, and the second focal point of the reflector bowl coincides with the focal point of the lens.

3. The apparatus according to claim 1, characterized in that, The focal lengths of the reflecting bowl and the lens in the first optical system satisfy the following condition: 1mm≤f h11 ≤6mm f h12 ≥15mm 40mm≤f t1 ≤50mm Among them, f h11 f represents the first focal length of the reflecting bowl in the first optical system. h12 f represents the second focal length of the reflecting bowl in the first optical system. t1 This indicates the focal length of the lens in the first optical system.

4. The apparatus according to claim 1, characterized in that, In the second optical system, the focal lengths of the reflecting bowl and the lens satisfy the following condition: 1mm≤f h21 ≤10mm f h22 ≥15mm 35mm≤f t2 ≤45mm Among them, f h21 f represents the first focal length of the reflecting bowl in the second optical system. h22 f represents the second focal length of the reflecting bowl in the second optical system. t2 This indicates the focal length of the lens in the second optical system.

5. The apparatus according to claim 1, characterized in that, The focal lengths of the reflector bowl and lens in the third optical system satisfy the following conditions: 1mm≤f h31 ≤10mm f h32 ≥15mm 20mm≤f t3 ≤30mm Among them, f h31 f represents the first focal length of the reflecting bowl in the third optical system. h32 f represents the second focal length of the reflecting bowl in the third optical system. t3 This indicates the focal length of the lens in the third optical system.

6. The apparatus according to claim 1, characterized in that, The distance between the second optical system and the first and third optical systems in the vehicle's direction of travel is greater than a first preset distance.

7. The apparatus according to claim 1, characterized in that, The distance between the second optical system and the first and third optical systems in the perpendicular direction of the vehicle's travel direction is greater than the second preset distance.

8. The apparatus according to claim 1, characterized in that, The first to the fifth optical systems are arranged in a staggered manner in the direction of vehicle travel.

9. A vehicle light, characterized in that, Includes the apparatus as described in any one of claims 1-8.

10. A vehicle, characterized in that, Including the vehicle lights as described in claim 9.

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