Primary optical unit for improving lighting effect and vehicle lamp with same
By combining the main optical unit and the secondary optical unit, the problem of graininess caused by the combination of optical units in the headlights is solved, achieving uniform light distribution and satisfying the illumination angle, thus improving the lighting effect and visual appeal of the headlights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-03
AI Technical Summary
In existing automotive headlight designs, the combination of multiple independent optical units results in a grainy appearance that severely affects visual perception, making it difficult to achieve ideal light efficiency and static display effects.
It adopts a combination design of at least two light sources, a main optical unit and a secondary optical unit. The main optical unit reflects light to form a vertical light distribution, and the secondary optical unit assists in reflecting light to improve light utilization and illumination angle, thus avoiding graininess.
It achieves uniform light distribution and satisfies the required illumination angle, avoiding a grainy lighting effect and improving the overall lighting effect and visual appeal of the headlights.
Smart Images
Figure CN224080026U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to primary optical units, and more particularly to a primary optical unit for improving lighting effect and an automotive lamp having the same. Background Technology
[0002] In the technological evolution of the modern automotive industry, the primary optical unit, as a core component for achieving the initial distribution of light from a light source, directly affects the optical performance of the vehicle lighting system. As consumers' aesthetic and functional demands for automotive lighting products increase, subjective evaluation indicators such as the lighting effect and static appearance of vehicle lights have become key areas of stringent industry control. Taking functional vehicle lights such as corner fog lights and signal lights as examples, traditional designs often employ a combination of multiple primary optical units: some designs have a one-to-one correspondence between the light source and the optical unit, while others use multi-core or multi-single-core light sources to match a single optical unit. While this structure meets basic optical requirements, it reveals significant shortcomings in practical applications—whether the light fixture is illuminated or in a static display, the grainy texture created by multiple independent optical units severely impacts the visual experience. Faced with the dual technical challenges of improving luminous efficiency and optimizing defects, existing solutions struggle to achieve ideal results. To address these issues, this paper proposes a primary optical unit that improves lighting performance and a vehicle light incorporating it. Utility Model Content
[0003] This utility model aims to solve at least one of the technical problems existing in the prior art.
[0004] Therefore, this utility model proposes a primary optical unit for improving the lighting effect and a vehicle headlight having the same. The primary optical unit for improving the lighting effect has the advantages of reducing the graininess of the lighting and improving the utilization rate of light.
[0005] The primary optical unit for improving lighting effect according to an embodiment of the present invention includes: at least two light sources, a main optical unit, and a secondary optical unit; the main optical unit has a first contour line in a vertical plane, the first contour line has a first focal point, the main optical unit is formed by extending the first contour line along its normal direction, the light source is located on the focal line of the main optical unit, the main optical unit is used to reflect the light emitted by the light source and form the light into the desired light distribution in the vertical direction; the secondary optical unit is located at the end of the main optical unit, the secondary optical unit is used to receive the light from the light source and form the desired light distribution in the vertical and horizontal directions.
[0006] According to one embodiment of the present invention, in the normal plane of the first contour line, the main optical unit has a first guide line, which is a straight line or a curve.
[0007] According to one embodiment of the present invention, the secondary optical unit has a second focal point.
[0008] According to one embodiment of the present invention, the number of light sources is multiple, and at least one of the light sources is located at the second focal point.
[0009] According to one embodiment of the present invention, the secondary optical unit has a second contour line in a vertical plane, and the second contour line is consistent with the first contour line.
[0010] According to one embodiment of the present invention, the secondary optical unit includes a second guide line, which is connected to the first guide line.
[0011] According to one embodiment of the present invention, the number of secondary optical units is two, and the two secondary optical units are respectively located at both ends of the main optical unit.
[0012] According to one embodiment of the present invention, the secondary optical unit is a reflector.
[0013] A vehicle headlight with a primary optical unit that enhances illumination effect, employing any of the aforementioned primary optical units that enhance illumination effect, includes an imaging unit located in the light emission direction of the primary optical unit that enhances illumination effect.
[0014] According to one embodiment of the present invention, the imaging unit is a reflection unit or a refraction unit.
[0015] The beneficial effects of this utility model are that the main optical unit reflects the light emitted by the light source on its focal line and makes the light form the required light distribution in the vertical direction, which improves the uniformity of the light distribution. At this time, since the width of the main optical unit is close to the required width of the illumination, only one main optical unit in the width direction can meet the light distribution requirements, avoid the graininess in the illumination, and achieve a uniform illumination effect.
[0016] By using secondary optical units located at both ends of the main optical unit, the light rays that are irradiated by the light source at both ends of the main optical unit are reflected to the light output direction, so as to jointly illuminate the same area or assist the main optical unit to increase the illumination angle, thus realizing full utilization of light and meeting the required illumination angle.
[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments with accompanying drawings, in which:
[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a top view of the overall structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the light path in the vertical plane of the main optical unit of this utility model;
[0023] Figure 4 This is a schematic diagram showing the connection between the first guide line and the second guide line when the first guide line is a straight line.
[0024] Figure 5 This is a schematic diagram showing the connection between the first guide line and the second guide line when the first guide line of this utility model is curved;
[0025] Figure label:
[0026] 1. Light source; 11. Main optical unit; 12. Secondary optical unit. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and 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 a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The following describes in detail, with reference to the accompanying drawings, a primary optical unit for improving lighting effect and a vehicle lamp having thereon, according to an embodiment of the present invention.
[0031] like Figures 1-5 As shown, the primary optical unit for improving the lighting effect according to an embodiment of the present invention includes: at least two light sources 1, a main optical unit 11, and a secondary optical unit 12; the at least two light sources 1 are spaced apart, and each of the at least two light sources 1 may correspond to the main optical unit 11, or may partially correspond to the main optical unit 11, with the other part corresponding to both the main optical unit 11 and the secondary optical unit 12; the main optical unit 11 has a first contour line in a vertical plane, and the first contour line has a first focal point; the main optical unit 11 is formed by extending the first contour line along its normal direction; the light source 1 is located on the focal line of the main optical unit 11; the main optical unit 11 is used to reflect the light emitted by the light source 1 and form the required light distribution in the vertical direction; the secondary optical unit 12 is located at the end of the main optical unit 11; the secondary optical unit 12 can receive and reflect the light emitted by its corresponding light source 1, and can also receive the light from the light source 1 corresponding to the main optical unit 11, and form a light distribution in the vertical and horizontal directions.
[0032] In this embodiment, the main optical unit 11 reflects the light emitted by the light source 1 on its focal line, and forms the required light distribution in the vertical direction, improving the uniformity of the light distribution. Since the width of the main optical unit 11 is close to the required width for illumination, a wider projection effect is formed on the road surface. This achieves the requirement for light distribution with only one main optical unit 11 in the width direction, avoiding mutual obstruction or obvious illumination boundaries caused by multiple primary optical units. Therefore, it avoids the grainy feeling of illumination and achieves a uniform illumination effect. The secondary optical unit 12 is located at at least one end of the main optical unit 11, reflecting the light from the light source to the end of the main optical unit 11 to the light output direction, so as to jointly illuminate the same area or assist the main optical unit 11 to increase the illumination angle, thus achieving full utilization of the light and meeting the required illumination angle.
[0033] like Figure 4-5As shown, in the normal plane of the first contour line, the main optical unit 11 has a first guide line b1, which is a straight line or a curve.
[0034] In this embodiment, if the required width for illumination is large, the first guide line is a straight line; if the required brightness or the requirement for uniformity of light distribution in the width direction is high, the first guide line is set to a curve. The specific settings can be made according to user needs.
[0035] The secondary optical unit 12 may have a second focal point, which can be located at any position, preferably on the focal line of the primary optical unit 11. There may be multiple light sources 1, with at least one light source 1 located at the second focal point.
[0036] In this embodiment, a light source 1 is provided at the second focal point, and at this time, the focal line of the main optical unit 11 also has a light source 1; when the second focal point is located on the focal line of the main optical unit 11, at least one of the light sources 1 of the main optical unit 11 is shared with the second focal point.
[0037] like Figure 4-5 As shown, the sub-optical unit 12 has a second contour line in a vertical plane, which may or may not be consistent with the first contour line. The sub-optical unit 12 includes a second guide line b2, which may or may not be connected to the first guide line.
[0038] Preferably, the second contour line is consistent with the first contour line, and the second guide line is connected to the first guide line. That is, the second contour line and the first contour line are collinear and extend through the same contour line. At this time, the sub-optical unit 12 and the main optical unit 11 are smoothly connected or integrally formed to avoid the generation of step surfaces. Therefore, the phenomenon of stray light between the two is avoided, and the uniformity of illumination is further improved.
[0039] The number of secondary optical units 12 is one or two. When there is only one secondary optical unit 12, it can be located at any end of the main optical unit 11. When there are two secondary optical units 12, the two secondary optical units 12 are located at the two ends of the main optical unit 11 respectively.
[0040] The secondary optical unit 12 is a reflector.
[0041] In this embodiment, the two secondary optical units 12 are arranged opposite each other and at the same angle as the light emission angle. That is, when the first guide line is a straight line, the secondary optical unit 12 is at 90° with the main optical unit 11, or the two secondary optical units 12 gradually diffuse at a certain angle along the light emission direction of the main optical unit 11.
[0042] A vehicle headlight with a primary optical unit that enhances illumination, comprising an imaging unit located in the light emission direction of the primary optical unit, for projecting the light distribution shaped by the primary optical unit.
[0043] The imaging unit can be either a reflection unit or a refraction unit, which can be set according to the shape and space of the headlight; a light diffusion unit is added to the light output direction of the primary optical unit to further improve the lighting effect and the uniformity of the road surface projection.
[0044] To improve the uniformity of illumination or the width of the road surface projection, patterns can be applied to the surface of the primary optical unit.
[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A primary optical unit for enhancing a lighting effect, characterized in that, Comprising: at least two light sources (1); a primary optical unit (11) having a first contour line in a vertical plane, the first contour line having a first focal point, the primary optical unit (11) being formed by the first contour line extending along its normal, the light sources (1) being located on the focal line of the primary optical unit (11), the primary optical unit (11) being used to reflect the light rays emitted by the light sources (1) and form a required light distribution in the vertical direction; a secondary optical unit (12) located at the end of the primary optical unit (11), the secondary optical unit (12) being used to receive the light rays from the light sources (1) and form a required light distribution in the vertical and horizontal directions.
2. A primary optical unit for enhancing a lighting effect according to claim 1, characterized in that, In the normal plane of the first contour line, the primary optical unit (11) has a first guide line, which is a straight line or a curve.
3. A primary optical unit for enhancing a lighting effect according to claim 2, characterized in that, The secondary optical unit (12) has a second focal point.
4. A primary optical unit for enhancing a lighting effect according to claim 3, characterized in that, The number of the light sources (1) is multiple, and at least one of the light sources (1) is located on the second focal point.
5. A primary optical unit for enhancing a lighting effect according to claim 4, characterized in that, The secondary optical unit (12) has a second contour line in a vertical plane, which is consistent with the first contour line.
6. A primary optical unit for enhancing a lighting effect according to claim 5, characterized in that, The secondary optical unit (12) includes a second guide line, which is connected with the first guide line.
7. A primary optical unit for enhancing a lighting effect according to claim 6, characterized in that, The number of the secondary optical units (12) is two, and the two secondary optical units (12) are respectively located at the two ends of the primary optical unit (11).
8. A primary optical unit for enhancing a lighting effect according to claim 1, characterized in that, The secondary optical unit (12) is a mirror.
9. A vehicle lamp having a primary optical unit with a raised highlighting effect, characterized in that The primary optical unit for improving the lighting effect as claimed in any one of claims 1-8 is used, and an imaging unit is located in the light output direction of the primary optical unit for improving the lighting effect.
10. The vehicle lamp having a primary optical unit with a boost lightening effect according to claim 9, characterized in that, The imaging unit is a reflective unit or a refractive unit.