Interactive lamp optical system with stereoscopic display effect

Abstract

The utility model discloses an interactive lamp optical system with a stereoscopic display effect. The interactive lamp optical system comprises a light guide module and a light source module for providing light rays emitted to the light guide module, the light guide lens comprises a connecting body and a light guide column; the light guide column is provided with a light inlet surface, a light outlet surface and a draft guide area; and the light incident surface, the draft guide area, the connector and the light emergent surface form a total reflection light path. The interactive lamp optical system with the stereoscopic display effect adopts an optical system structure without a shading component, so that the production cost can be reduced; compared with a connector of a conventional shading structure, the width of a pixel black edge can be shortened; the draft guide area can improve draft efficiency and reduce structural loss.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an interactive lighting system with a three-dimensional display effect. Background Technology

[0002] Under the trend of "new four modernizations" in automobiles, automotive lighting is no longer just for simple illumination. Instead, it is developing towards trends such as multi-screen, large-screen, personalized, intelligent, and interactive. Display-based automotive lighting technology has opened up a brand-new interactive channel, enabling a variety of intelligent driving assistance, human-vehicle or vehicle-to-vehicle interaction functions in different driving scenarios.

[0003] In recent years, low-cost display technology has mainly relied on two technical routes: thick-walled lenses and scattering materials. These technologies have drawbacks such as less refined appearance and poor optical performance, including light leakage and crosstalk between adjacent pixels. Differentiation and refinement have become new demands from OEMs and consumers.

[0004] CN 117267658A discloses an optical system for intelligent interactive display signals in automobiles. This patented technology achieves low light crosstalk, improved luminous efficiency, and smaller dimensions in the depth direction by setting a light-shielding component at the light entrance, and by using collimating lens and diffuser lens components that themselves can also achieve light shielding. This solves the problems of light crosstalk and leakage between pixels affecting the display effect. The size design in the longitudinal axis direction of the vehicle body can be controlled within 20mm of space, while improving luminous efficiency. However, the prior art uses multiple sets of light-shielding components to reduce light crosstalk; and the overall manufacturing process will increase the manufacturing cost and additional processing steps due to the adaptation of multiple sets of light-shielding components. Therefore, those skilled in the art provide an interactive lighting optical system with a stereoscopic display effect to solve the problems mentioned in the background art. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to solve the technical problems in the prior art where the display effect of interactive signal lights is limited by the processing technology, and the stacking of multiple sets of light-shielding components affects the production cost and adds production steps, this utility model provides an interactive light optical system with a three-dimensional display effect.

[0006] The technical method adopted by the present invention to solve the technical problem is an interactive lighting optical system with a three-dimensional display effect, including: a light guide module and a light source module that provides light to the light guide module;

[0007] The light guide lens includes a connector and a light guide post;

[0008] The light guide post has an incident light surface, an exit light surface, and a draft guide area;

[0009] The light-incident surface, draft guide area, connector, and light-outcident surface form a total internal reflection optical path.

[0010] Furthermore, in order to provide sufficient light to participate in the total internal reflection illumination of the light guide column, at least one set of light source units are evenly distributed on the surface of the circuit board in the light source module.

[0011] Furthermore, in order to enable the light guide module to perfectly perform the total internal reflection process, a light path illumination formula is set here, and the diameter of the light-emitting surface of the light source unit is set to d;

[0012] The incident divergence angle of the light source unit is α;

[0013] The width of the light-incident surface of the light guide is D;

[0014] The distance between the upper surface and the lower surface of the connector of the light guide lens is h;

[0015] Let Δd be the distance from the incident angle boundary of the light ray at the edge of the light source unit to the incident surface of the light guide column;

[0016] The following relationship must be satisfied:

[0017] D = d + 2btan(α) + 2Δd.

[0018] Furthermore, in order to improve the product's demolding process, the draft guide area includes a total reflection surface on the side of the light guide post. The normal angles of the total reflection surface are θ1 and θ2. The angles θ1 and θ2 are used to guide the demolding. Preferably, the values ​​of the angles θ1 and θ2 are typically in the range of 2°–5°.

[0019] Let H be the vertical distance from the upper surface of the connector to the incident light surface;

[0020] The refractive index of the light guide lens is n;

[0021] The vertical distance H from the upper surface of the connector to the incident light surface must satisfy the following relationship:

[0022] 0<H≤(htan(θ1)-Δd) / (tan(θ1)-tan(arcsin(1 / n*sin(α)))).

[0023] Furthermore, when the value of Δd is 0, the light shows that it has not entered the critical state. The following formula needs to be satisfied to form a total internal reflection light path: Δd=0, θ1>arcsin(1 / n*sin(α)), which is used for the critical state of light incidence.

[0024] Furthermore, to enhance the user experience, the light guide post's light source output surface is formed with a patterned texture, including:

[0025] Smooth cut surface, multi-textured diamond cut surface, cross-shaped cut surface, or evenly distributed grid cut surface.

[0026] Furthermore, in order to provide a light source and form a complete total internal reflection optical path, the light source module includes a light source corresponding to the light guide column.

[0027] Furthermore, in order to protect the light guide module and other internal structures, an outer lamp cover is installed on the outside of the light guide module.

[0028] Furthermore, in order to facilitate production and improve the light reflection effect, the light guide columns are arranged in an array on the connector.

[0029] Furthermore, to facilitate production and product demolding, the light guide column and the connector form an integrated connection structure.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. In the structural design of the light guide lens, the conventionally installed light shield and light shield components are eliminated. The light blocking effect between pixels is achieved by the light guide lens through total internal reflection of the inner wall. The production cost and production process steps are reduced to a certain extent. At the same time, compared with the light shield structure in the prior art, the weight of the product structure of this application can also be reduced.

[0032] 2. In the structural design of the light guide lens, this utility model utilizes the algorithm of the lighting system and the range of angle values ​​in combination with the total internal reflection design of the ISD lamp. Compared with the conventional connector with a light-shielding structure, it can shorten the width of the pixel black border and improve the light display effect.

[0033] 3. This utility model adds a draft guide area to the structural design of the light guide lens. The design of the draft guide area facilitates product demolding. The draft angle design of the draft guide area allows the workpiece to complete the demolding process according to the angle and direction set by the user, which reduces the product defect rate and further improves the service life of the mold. Attached Figure Description

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a side view of the three-dimensional interactive lighting optical system of this utility model;

[0036] Figure 2 This is a structural schematic diagram of the connector of the three-dimensional display interactive lighting optical system of this utility model;

[0037] Figure 3 This is a top view of the connector of the three-dimensional display interactive lighting optical system of this utility model;

[0038] Figure 4 This is a schematic diagram of the optical path of the connector of the three-dimensional interactive light optical system of this utility model;

[0039] Figure 5 This is a schematic diagram illustrating the optical path parameters of the connector of the three-dimensional interactive light optical system of this utility model;

[0040] Figure 6 This is a schematic diagram of the light-emitting surface of the light guide column of another embodiment of the three-dimensional interactive light optical system of this utility model;

[0041] Figure 7 This is a schematic diagram of the light-emitting surface of the light guide column of another embodiment of the three-dimensional interactive light optical system of this utility model;

[0042] Figure 8 This is a schematic diagram of the light-emitting surface of the light guide column in another embodiment of the three-dimensional interactive light optical system of this utility model.

[0043] In the diagram: 11. Circuit board; 12. Light source unit; 2. Light guide lens; 21. Light incident surface; 22. Lower side wall; 23. Lower surface of connector; 24. Upper surface of connector; 25. Upper side wall; 26. Light emitting surface; 27. Light guide column; 3. Outer lamp cover. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0045] 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.

[0046] 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.

[0047] like Figures 1 to 5 The diagram shows the preferred embodiment of this utility model. This embodiment provides an interactive lighting optical system with a stereoscopic display effect, characterized in that it includes: a light guide module and a light source module that provides light to the light guide module.

[0048] The light guide lens 2 includes a connector and a light guide post;

[0049] The light guide post 27 has an incident light surface 21, an exit light surface 26, and a draft guide area;

[0050] The light-incident surface 21, the draft guide area, the connector, and the light-outceasing surface 26 form a total internal reflection optical path.

[0051] At least one set of light source units 12 are evenly distributed on the surface of the circuit board 11 in the light source module.

[0052] An outer lamp cover 3 is installed on the outside of the light guide module.

[0053] Example 1:

[0054] The interactive lighting system, composed of stacked components, consists of a circuit board 11, a light source unit 12, a connector 2, and an outer lampshade 3, arranged from bottom to top. The connector 2 comprises a light-incident surface 21, a lower sidewall 22, a lower surface 23, an upper surface 24, an upper sidewall 25, and a light-emitting surface 26. Light guide columns 27 are arranged in an array on the connector. Multiple light guide columns are connected as a whole using a one-piece molding installation method. The light guide columns 27 and the connector form an integrated connection structure. The uniform distribution of the light guide columns eliminates the need for conventional light-shielding frames and other auxiliary connections, achieving light shielding between pixels solely through total internal reflection. This also reduces structural load and further optimizes the production process and materials required for the light-shielding components. This direct power-driven lighting structure reduces the light-shielding gaps between components, resulting in a wider illumination range and further reducing the display size of pixel black borders, leading to a more prominent lighting effect. The addition of the outer lamp cover 3 ensures the integrity of the lamp body structure, and the design of the outer lamp cover 3 also provides isolation and protection.

[0055] Let the diameter of the light-emitting surface of the light source unit 12 be d;

[0056] The incident divergence angle of the light source unit 12 is α;

[0057] The light source unit 12 is usually an LED light source with a Lambertian light emission characteristic and a half-intensity full angle of 120°, meaning that 80% of the energy is concentrated within a divergence angle of ±60°. The larger the incident divergence angle α of the light source unit 12, the higher the energy that the system can collect.

[0058] The width of the light-incident surface 21 of the light guide post 27 is D;

[0059] The distance between the upper surface 23 and the lower surface 24 of the connector of the light guide lens 2 is h;

[0060] Let Δd be the distance from the incident angle boundary of the light rays from the edge of the light source unit 12 to the incident surface 21 of the light guide module.

[0061] The following relationship must be satisfied:

[0062] D = d + 2btan(α) + 2Δd.

[0063] The draft guide area includes the total reflection surface on the side of the light guide post 27. The included angles of the normals of the total reflection surface are θ1 and θ2. The included angles θ1 and θ2 are used to guide the draft. The values ​​of the included angles θ1 and θ2 are usually in the range of 2° to 5°.

[0064] Adjustments can be made based on the actual processing conditions; the angle is not limited to this range.

[0065] Let H be the vertical distance from the upper surface 24 of the connector to the incident light surface 21;

[0066] The refractive index of light guide lens 2 is n;

[0067] The vertical distance H from the upper surface 24 of the connector to the incident light surface 21 must satisfy the following relationship:

[0068] 0<H≤(htan(θ1)-Δd) / (tan(θ1)-tan(arcsin(1 / n*sin(α)))).

[0069] Δd=0, θ1>arcsin(1 / n*sin(α)), used for the critical state of light incidence.

[0070] like Figure 5 As shown, the distance from the emitting surface of the light source unit 12 to the light incident surface 21 of the connector 2 is b, the distance between adjacent light guide pillars of the connector 2 is a, and the height of the light guide pillar extending outward is c.

[0071] The distance 'a' between adjacent connecting bodies 2 light guide pillars is determined by the mold processing accuracy. If 'a' is less than the mold processing accuracy, there will be risks such as demolding deformation caused by thin mold cylinder, thereby reducing the product qualification rate.

[0072] The distance b from the emission surface of the light source unit 12 to the light incident surface 21 of the connector 2 is determined by the installation tolerance. Usually, in order to avoid collision between the light source 12 and the connector 2, which could lead to component failure, a certain installation gap needs to be reserved between adjacent components. If the installation accuracy can be controlled to be smaller, the size of b can be adjusted according to the actual installation tolerance. It can usually be set to be greater than or equal to 0.5mm.

[0073] like Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the facets can be multi-textured diamond patterns, cross-shaped patterns, or evenly distributed grid patterns.

[0074] The connector 2 and the light-emitting surface 26 can be designed with different shaped patterns to enhance the three-dimensional display effect and increase the sense of refinement.

[0075] Example 2:

[0076] The lower sidewall 22 and the upper sidewall 25 have draft angles θ1 and θ2, which are artificially set to allow the workpiece to better detach from the mold. The angle between the tangential direction of the side where the workpiece intersects the mold parting surface and the normal direction of the mold parting surface is to ensure that the workpiece can smoothly detach from the mold during the demolding process and avoid damage to the mold or the workpiece.

[0077] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. An interactive light system with a stereoscopic display effect, characterized in that, The application relates to a light guide module and a light source module for providing light rays to the light guide module, wherein the light guide module comprises a light guide lens (2); the light guide lens (2) comprises a connecting body and a light guide column; the light guide column (27) has an incident light surface (21), an emergent light surface (26) and a demolding guide area; the incident light surface (21), the demolding guide area, the connecting body and the emergent light surface (26) form a total reflection light path; the light source module comprises light sources corresponding to the light guide column (27), and the light sources corresponding to the light guide column (27) emit light through at least one group of light source units (12) uniformly distributed on the surface of a circuit board (11). The following relationship is met: the emergent light surface (26) forms a patterned surface, which comprises a multi-patterned diamond surface, a cross star surface or a uniformly distributed grid surface; the emergent light surface (26) comprises a smooth cutting surface; an outer lamp shade (3) is mounted outside the light guide module; the light guide column (27) is arranged in an array distribution structure on the connecting body; the light guide column (27) and the connecting body form an integrated connecting structure. ​ ​ ​ ​ 2. The interactive light system with stereoscopic display effect according to claim 1, characterized in that, The light emitting surface diameter of the light source unit (12) is ; The incident divergence angle of the light source unit (12) is ; The width of the light entrance surface (21) of the light guide pillar (27) is ; The distance between the upper surface (23) and the lower surface (24) of the connecting body of the light guide lens (2) is ; The distance from the edge of the light source unit (12) to the light incident surface (21) of the light guide column is set to be within the boundary of the incident angle of the edge light into the light incident surface (21) ; ​ 。 3. The interactive light system with stereoscopic display effect according to claim 2, characterized in that, The draft guiding area comprises a light guide column (27) side total reflection surface, the normal angle of the total reflection surface is and , the angle and the angle are used for guiding the draft. Let the vertical distance from the upper surface (24) of the connector to the light entry surface (21) be ; The refractive index of the connector is ; Vertical distance of the upper surface (24) of the connector to the light entry surface (21) The following relation must be satisfied: 。 4. The interactive light system with stereoscopic display effect according to claim 3, characterized in that, = 0, , the critical state for light incidence.

5. The interactive light system with stereoscopic display effect according to claim 1, characterized in that, ​ ​ 6. The interactive light system with stereoscopic display effect according to claim 5, characterized in that, ​ 7. The interactive light system with stereoscopic display effect according to claim 1, characterized in that, ​ 8. The interactive light system with stereoscopic display effect according to claim 1, characterized in that, ​ 9. The interactive light system with stereoscopic display effect according to claim 1, characterized in that, ​

Images