Optical device for realizing dynamic change of lightening effect and dynamic shielding structure

Abstract

The invention provides an optical device for realizing dynamic change of a lighting effect and a dynamic shielding structure. The optical device comprises a shielding structure, a magnetic bar, an electromagnetic coil and a magnet, the shielding structure comprises a plurality of shielding sheets, and the shielding sheets connected with the magnet can move between a horizontal state and a vertical state under the action of the magnetic bar and the electromagnetic coil; when the shielding piece is in the horizontal state, light rays in the light emitting direction can not be shielded. When the shielding piece is in the vertical state, part of light rays in the light emitting direction can be shielded. The shielding structure is attracted through magnetic force, the position of the shielding structure is changed, the problem of dynamic lighting of an optical system is solved, and the effect of achieving an ADB function of high and low beams or animation of a signal lamp or running water is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of automotive optical systems, and in particular relates to an optical device and a dynamic shielding structure for achieving dynamic changes in lighting effects. Background Art

[0002] Patent document CN201462690U discloses a high / low beam switching device for automotive headlights, including a movable light shield that can rotate freely about an axis. When powered, an electromagnetic magnet generates magnetic force, driving a shaft to push the movable light shield, causing it to rotate an angle around the axis from its original position, thereby changing the amount of light transmitted and achieving the high / low beam switching function. This device is used to switch the high / low beam function within a module, using a movable shielding plate. This large shielding plate is used to switch between high and low beams, and it blocks light from the entire optical system to achieve the high / low beam switching function.

[0003] However, the size of the sunshade in patent document CN201462690U is a single shielding structure that matches the entire optical system, and cannot realize the high beam ADB function. The pixels of ADB cannot be adjusted according to customer needs. Summary of the Invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide an optical device and a dynamic shielding structure that can achieve dynamic changes in lighting effects.

[0005] According to the present invention, a dynamic shielding structure is provided, comprising: a shielding structure 1, a magnetic rod and an electromagnetic coil 2, and a magnet 5;

[0006] The shielding structure 1 includes a plurality of shielding pieces, wherein the shielding pieces connected to the magnet 5 can move between a horizontal state and a vertical state under the action of the magnetic rod and the electromagnetic coil 2;

[0007] When the shielding piece is in a horizontal state, it can not block the light in the light emitting direction;

[0008] When the shielding piece is in a vertical state, it can block part of the light in the light-emitting direction.

[0009] Preferably, the states of the plurality of light shielding sheets are controlled independently of each other.

[0010] Preferably, the plurality of light shielding sheets are arranged continuously or at intervals in a plane perpendicular to the light emitting direction;

[0011] The shielding areas formed by the adjacent shading sheets arranged continuously are connected to each other;

[0012] There are gaps between the shielding areas formed by the adjacent light shielding sheets arranged at intervals.

[0013] Preferably, along the arrangement direction of the shading sheets, there is a spacing between the magnetic bars corresponding to adjacent shading sheets in the light emitting direction, and there is also a spacing in the arrangement direction of the shading sheets; wherein the arrangement direction of the shading sheets is a horizontal direction perpendicular to the light emitting direction.

[0014] Preferably, it further comprises: a supporting structure 3, a rotating shaft 4;

[0015] The shielding sheet in the shielding structure 1 is mounted on the supporting structure 3 via a rotating shaft 4 .

[0016] Preferably, it further comprises: a rotating shaft 4, a gear structure 7, and a pull rod 9;

[0017] The shielding plates of the shielding structure 1 are connected to the gear structures 7 through the rotating shaft 4, and the gear structure 7 cooperates with the rack structure of the pull rod 9;

[0018] The magnetic bar performs the described action on the pull rod 9 .

[0019] Preferably, it further comprises: an electronic control board;

[0020] The electronic control board controls the power supply to the magnetic bar and the electromagnetic coil (2) and the positive and negative current, and drives the magnetic bar to output currents in two different directions, positive and negative, through four switch tubes Q1, Q2, Q3, and Q4; when Q1 and Q2 are turned on, the current passes through the magnetic bar L1 and generates a magnetic field force; when Q1 and Q2 are turned off and Q3 and Q4 are turned on, the opposite current flows through the magnetic bar L1, thereby generating a reverse magnetic field force.

[0021] According to the present invention, an optical device for realizing dynamic changes in lighting effects is provided, comprising the above-mentioned dynamic shielding structure and a light source;

[0022] The light source provides light;

[0023] The dynamic shielding structure does not shield, partially shields, or completely shields the light emitted by the light source.

[0024] A vehicle lamp provided according to the present invention includes the optical device for achieving dynamic changes in lighting effects.

[0025] A car provided according to the present invention includes the aforementioned headlight.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention adopts magnetic force to attract the shielding structure, causing the position of the shielding structure to change, thereby solving the problem of dynamic lighting of the optical system, and achieving the effect of ADB functions such as high and low beams or animation or flowing water of signal lights.

[0028] 2. The present invention adopts a shielding sheet composed of multiple dynamically movable shielding structures 1, which can realize the high beam ADB function, and the ADB can be adjusted according to customer needs.

[0029] 3. The present invention disperses the magnetic bars at different positions to increase the distance, and solves the electromagnetic interference problem of the electromagnetic structures around the multiple shielding pieces by adjusting the current.

[0030] 4. The present invention adopts magnetic force to attract the shielding structure, causing the position of the shielding structure to change. The shielding structure is not limited to a rectangle, and it can also be used as a decorative structure inside the headlight, solving the problem of achieving dynamic position change of decorative parts in the headlight, and achieving the effect of realizing diversity in the shape of the headlight.

[0031] 5. The shielding structure of the present invention is not limited to being located within the optical system; it can also be located outside the optical system. When located outside the optical system, the shielding structure itself can serve as a decorative structure. When the shielding structure is completely horizontal, the headlight functions normally and can also achieve dynamic lighting, achieving the effect of changing the headlight shape and concealing the light.

[0032] 6. The present invention is driven by a magnetic rod and has a fast response speed of 40 times per second. The speed can also be adjusted according to the actual project needs and is not limited to 40 times per second. The present invention has a simple structure, good reliability, and accurate movement between the blocking position and the non-blocking position. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the dynamic shielding structure in the first embodiment provided by the present invention from one angle.

[0035] Figure 2 This is a schematic diagram of the three-dimensional structure of the dynamic shielding structure in the first embodiment provided by the present invention from another angle.

[0036] Figure 3 This is a schematic cross-sectional view of the dynamic shielding structure in the first embodiment provided by the present invention.

[0037] Figure 4 This is a schematic structural diagram of each shielding piece in the dynamic shielding structure in the first embodiment of the present invention in different states.

[0038] Figure 5 This is a schematic diagram of the three-dimensional structure of the dynamic shielding structure in the second embodiment provided by the present invention.

[0039] Figure 6 This is a schematic cross-sectional view of the dynamic shielding structure in the second embodiment of the present invention.

[0040] Figure 7 This is a schematic structural diagram of each shielding piece in the dynamic shielding structure in the second embodiment provided by the present invention when being in different states.

[0041] Figure 8 This is a partial circuit diagram of the magnetic rod drive.

[0042] The figure shows:

[0043]

[0044] DETAILED DESCRIPTION

[0045] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0046] The present invention provides an optical device that can achieve dynamic changes in lighting effects. Through a traditional optical system, such as a reflective bowl system or a thick-walled part, the dynamic shielding structure of the present invention is added in front of the original optical system light output surface, which can partially shield the light of the original light output system. Since the shielding structure can be pixelated, that is, a shielding structure can be configured in front of each pixel, because the dynamic change of the lighting effect can be achieved, it can be applied to the ADB function of the high and low beam modules, or the animation or flowing water functions of the signal light. Furthermore, the shielding structure of the present invention can be beautified to a certain extent, such as aluminum plating or some other beautiful appearance effects, as a decorative component in the car light.

[0047] The present invention will be described in detail below.

[0048] The present invention provides an optical device that achieves dynamic lighting effects. The device comprises a basic optical system used in existing technologies to achieve optical functions, such as a high- and low-beam module. The system includes a light source, a reflector, and a light-emitting lens. Light from the light source is reflected by the reflector and then emitted through the light-emitting lens. Using this optical system as an example, equipped with the dynamic shading structure provided by the present invention, it can achieve ADB (Adaptive Driving Beam) functionality.

[0049] The present invention will be described in detail below with reference to the first embodiment of the present invention.

[0050] like Figure 1 、 Figure 2 As shown, the dynamic shielding structure of the optical device for achieving dynamic lighting effect changes includes a shielding structure 1, a magnetic rod and an electromagnetic coil 2, a supporting structure 3, a rotating shaft 4, and a magnet 5. The shielding structure 1 includes a plurality of shielding sheets.

[0051] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The embodiment shown in the figure has three shielding structures 1, i.e., three shielding plates, wherein one shielding structure 1 is in a vertical state, one shielding structure is in a horizontal state, and one shielding structure is in the process of changing from a vertical state to a horizontal state, or from a horizontal state to a vertical state. When the magnetic rod and the electromagnetic coil 2 are connected to a current in one direction, it generates an attractive force on the magnet 5. At this time, the magnet 5 drives the shielding structure 1 in the direction of the attractive force due to the attractive force. Due to the structural design, the shielding structure 1 moves around the rotating shaft 4, so that the shielding structure 1 can move. When all the shielding structures 1 are in a horizontal state, parallel to the light emitting direction of the optical system, the light travels normally, and the optical system functions normally during use.

[0052] When the light in a certain area needs to be dimmed, such as when oncoming vehicles are used for the ADB function, the shielding structure 1 in the area needs to be moved to a vertical state, that is, perpendicular to the light emitting direction, to achieve the light shielding function in the area. At this time, as long as the current direction of the magnetic rod and the electromagnetic coil 2 is changed, a repulsive force on the magnet 5 will be generated. At this time, the magnet 5 drives the entire shielding structure 1 to move in the direction of the repulsive force due to the repulsive force. Due to the structural design, the shielding structure 1 moves around the rotating shaft 4, so that the shielding structure 1 moves to a vertical state. At this time, the shielding structure 1 is perpendicular to the light emitting direction of the optical system. Among them, Figure 4 The two straight arrows in the figure represent two light-emitting directions, which does not mean that there are two opposite light-emitting directions at the same time. Instead, in one preferred embodiment, the light-emitting direction is from left to right along the paper surface, and in another preferred embodiment, the light-emitting direction is from right to left along the paper surface. Similarly, Figure 6 、 Figure 7 The two straight arrows in the figure also indicate two light-emitting directions, but do not mean that there are two opposite light-emitting directions at the same time.

[0053] The following describes the second embodiment of the present invention.

[0054] The second embodiment is a variation of the first embodiment. The variation is that, in this embodiment, when the magnetic bar and the electromagnetic coil 2 are connected to a current in one direction, an attractive force is generated on the magnet 5. At this time, the connecting rod 9 connected to the magnet 5 is pulled in the direction of the magnetic bar and the electromagnetic coil 2. The pull rod 9 cooperates with the rack and gear structure 7 to transmit the force to the shielding structure 1, which realizes the shielding structure 1 to rotate around the rotating shaft 4 through the rotating shaft 4. At this time, the shielding structure 1 is moved to a vertical state as shown in FIG. Figure 7 A shielding structure 1 is shown, which is perpendicular to the light emitting direction of the basic optical system to achieve the effect of light shielding.

[0055] Furthermore, the structure can also be designed so that there are electromagnetic coils on both sides of the pull rod 9, so that when achieving movement, one side can provide thrust and the other side can provide pulling force, so as to reduce the coil size and current requirements for the single-direction electromagnetic rod, reduce heat dissipation, and cost. Since electromagnetic coils are arranged on both sides of the system, one side can only provide thrust and the other side can only provide pulling force, so that the electromagnetic interference problem on both sides can be further optimized. Furthermore, the distance between the left and right pull rods can be adjusted according to actual needs. Of course, if the distance between the left and right is equal, the distance between the pull rods on both sides can also be adjusted according to actual needs, and the specific parameters of the coils on both sides can be adjusted at the same time. A further example of the present invention is that there is only one gear structure, and multiple gears can be connected for transmission according to actual project requirements.

[0056] When the magnetic rod and the electromagnetic coil 2 change the direction of the current and generate a repulsive force, the pull rod 9 is pushed forward and away from the magnetic rod, that is, a force in the opposite direction to the position of the magnetic rod and the electromagnetic coil 2 is generated. At this time, the gear structure 7 and the rotating shaft 4 will cause the shielding structure 1 to move to a horizontal state, that is, a position parallel to the light emitting direction of the basic optical system.

[0057] To be more specific, the sub-unit structure of the shielding structure 1 is a shielding sheet; the schematic diagram of the first embodiment of the present invention shows a shielding structure 1 with three sub-unit structures, and the schematic diagram of the second embodiment of the present invention shows a shielding structure 1 with three sub-unit structures. In more variations, the shielding structure 1 of the present invention can be more sub-units, and the multiple shielding sheets can be a plurality of continuously arranged sheets in a plane perpendicular to the light emitting direction, or a plurality of discontinuously arranged sheets with intervals, and the number and size can be adjusted according to actual conditions.

[0058] More specifically, regarding the size, shape, position and number of the shielding pieces, the shielding pieces in the second embodiment of the present invention are three-dimensional rectangles, but are not limited to rectangles in actual situations, and their shapes can be changed according to actual needs. The material can be selected according to the needs of the actual project, and can be metal or plastic. In order to ensure that when the vehicle is driving, when the shielding piece is not needed to be in a vertical state, it cannot automatically move to a vertical state as the vehicle bumps, a solution can be adopted in which an electromagnet always attracts it, that is, there is always an interference suction force on the shielding piece. A limiting structure can also be used, and the limiting structure can also be movable. When it is not needed to be in a vertical state, the limiting structure is located above the shielding piece to maintain the current state of the shielding piece and prevent it from vibrating as the vehicle bumps. Similarly, when the shielding piece needs to move to a vertical state, the shielding piece can also be moved to a vertical state by the interference electromagnetic suction force.

[0059] More specifically, the shielding structure 1, the gears and whether a secondary pull rod or a multi-stage pull rod is required are adjusted according to actual conditions, and the material selection and number are also adjusted according to actual space requirements.

[0060] More specifically, when the number of magnetic bars and electromagnetic coils 2 increases, heat dissipation problems may occur. Fans can be added according to actual needs to dissipate heat.

[0061] More specifically, an electronic control board is required to control the power supply to the magnetic rod and the electromagnetic coil 2 and the positive and negative control of the current. Figure 8 This is the local circuit driving the magnetic rod. Four switching transistors, Q1, Q2, Q3, and Q4, drive the magnetic rod to output current in two different directions: forward and reverse. When Q1 and Q2 are on, current flows through the magnetic rod L1, generating a magnetic field force. When Q1 and Q2 are off and Q3 and Q4 are on, opposite currents flow through the magnetic rod L1, generating a reverse magnetic field force. Electronics have a fast response speed, and the speed of the shielding structure's movement depends on the relevant structure. It can be controlled within a range of 30-40 times per minute, and can be adjusted according to actual project needs.

[0062] The application scenario of the present invention can be to add it to a certain part in the existing optical system to realize the dynamicization of a function, such as the ADB function of the high and low beam module, or the animation or flowing water of the signal light. It can also be located outside the function and matched with the shape of the whole lamp to realize the function of the hidden lamp, that is, when the shielding structure 1 is all in the vertical state, it is a certain shape of the whole lamp. When the shielding structure 1 falls, the original components of the function are exposed and its light output is not blocked to realize the function. Furthermore, it can also change dynamically to realize dynamic lighting in conjunction with the function, that is, its position can be located inside and outside the optical system. Further, it can also be used as part of the shape of the whole lamp. It can be arranged in multiples according to the shape requirements, or scattered in certain areas, etc. Its position, quantity, shape, material, etc. are adjusted according to the specific situation.

[0063] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0064] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A dynamic occlusion structure, characterized in that: include: Shielding structure (1), magnetic rod and electromagnetic coil (2), magnet (5); The shielding structure (1) comprises a plurality of shielding sheets, wherein the shielding sheets connected to the magnet (5) are capable of moving between a horizontal state and a vertical state under the action of the magnetic rod and the electromagnetic coil (2); When the shielding piece is in a horizontal state, it can not block the light in the light emitting direction; When the shielding piece is in a vertical state, it can block part of the light in the light-emitting direction.

2. The dynamic shielding structure according to claim 1, characterized in that: The states of the plurality of light shielding sheets are controlled independently of each other.

3. The dynamic shielding structure according to claim 1, characterized in that: The plurality of light shielding sheets are arranged continuously or at intervals in a plane perpendicular to the light emitting direction; The shielding areas formed by the adjacent shading sheets arranged continuously are connected to each other; There are gaps between the shielding areas formed by the adjacent light shielding sheets arranged at intervals.

4. The dynamic shielding structure according to claim 1, characterized in that: Along the arrangement direction of the shading sheets, there is a spacing between the magnetic bars corresponding to adjacent shading sheets in the light emitting direction, and there is also a spacing in the arrangement direction of the shading sheets; wherein the arrangement direction of the shading sheets is a horizontal direction perpendicular to the light emitting direction.

5. The dynamic shielding structure according to claim 1, characterized in that: Also includes: Support structure (3), rotating shaft (4); The shielding sheet in the shielding structure (1) is mounted on the supporting structure (3) via a rotating shaft (4).

6. The dynamic shielding structure according to claim 1, characterized in that: Also includes: Rotating shaft (4), gear structure (7), pull rod (9); The shielding plates of the shielding structure (1) are connected to respective gear structures (7) via a rotating shaft (4), and the gear structure (7) cooperates with the rack structure of the pull rod (9); The magnetic bar performs the aforementioned action on the pull rod (9).

7. The dynamic shielding structure according to claim 1, characterized in that: Also includes: Electronic control panel; The electronic control board controls the power supply to the magnetic bar and the electromagnetic coil (2) and the positive and negative current, and drives the magnetic bar to output currents in two different directions, positive and negative, through four switch tubes Q1, Q2, Q3, and Q4; when Q1 and Q2 are turned on, the current passes through the magnetic bar L1 and generates a magnetic field force; when Q1 and Q2 are turned off and Q3 and Q4 are turned on, the opposite current flows through the magnetic bar L1, thereby generating a reverse magnetic field force.

8. An optical device for achieving dynamic lighting effect changes, characterized in that: The dynamic shielding structure and light source according to any one of claims 1 to 7; The light source provides light; The dynamic shielding structure does not shield, partially shields, or completely shields the light emitted by the light source.

9. A vehicle lamp, characterized in that: The optical device comprising the optical device for realizing dynamic change of lighting effect as claimed in claim 8.

10. An automobile, characterized in that: Including the vehicle light according to claim 9.

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