Multi-light source lighting module and its automotive lighting device

Abstract

To set up multi-color light sources in an illumination module of a vehicle lamp, enabling simultaneous generation of different color lights, thereby significantly mitigating the issue of inadequate lighting effects from traditional LED vehicle headlamps in adverse weather conditions.SOLUTION: A multi-light source illumination module 100 includes at least one optical adjustment member 110, at least one first light source 121, and at least one second light source 122. The first light source is configured to generate a first color light and project the first color light to the optical adjustment member. The second light source is configured to generate a second color light and project the second color light to the optical adjustment member. The optical adjustment member projects the first color light and the second color light to the front of the multi-light source illumination module, so that the first color light and the second color light partially or fully overlap.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an automobile component, and more particularly to a multi-light source lighting module and an automobile lamp including the multi-light source lighting module. [Background technology]

[0002] Compared with incandescent lamps, light-emitting diodes have the advantages of small volume, high brightness, long service life, and power saving. When light-emitting diodes are applied to vehicle headlight clusters, they can generate high-brightness white light, which can reliably achieve lighting effects under normal circumstances. However, the white light generated by LED vehicle headlight clusters has a high color temperature, and in bad weather, the desired lighting effects are often not achieved. For example, in rainy, snowy, or foggy weather, this can further affect visibility while driving, which in turn affects driving safety.

[0003] Therefore, in bad weather, users often have to turn on fog lights to enhance driving safety, combining them with the white light of LED headlight clusters. However, because fog lights are installed low and have a short illumination distance, they usually only have a warning effect and do not provide good lighting. In addition, most fog lights are installed separately and are not even included as standard equipment when a car is sold. Furthermore, adding them separately increases the installation cost. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to overcome the shortcomings of conventional LED vehicle headlight groups, the present invention further proposes that a multi-color light source be installed within the lighting module of the vehicle lamp, enabling different colored lights to be emitted simultaneously, thereby significantly improving the problem of conventional LED vehicle headlight groups having poor lighting effects in bad weather. [Means for solving the problem]

[0005] To achieve the above object, the present invention provides a multi-light-source lighting module, which includes at least one light path adjusting member, at least one first light source for generating and projecting a first color light onto the light path adjusting member, and at least one second light source for generating and projecting a second color light onto the light path adjusting member. The light path adjusting member projects the first color light and the second color light forward of the multi-light-source lighting module, thereby partially or completely superimposing the first color light and the second color light.

[0006] The present invention further provides an automotive lighting system including the above-described multiple light source lighting module integrated in the same socket.

[0007] In at least one embodiment of the present invention, the light path adjusting member is a reflector cup having an inner concave reflective surface.

[0008] In at least one embodiment of the present invention, the first color light and the second color light reach different points when projected onto the inner concave reflective surface, and the inner concave reflective surface has different curvatures or reflection angles at these points.

[0009] In at least one embodiment of the present invention, the first light source and the second light source are combined to form a single color-changeable light-emitting module, and the projection ranges of the first color light and the second color light overlap.

[0010] In at least one embodiment of the invention, the first light source is closely adjacent to the second light source and is close to the focal point or center of the reflector cup.

[0011] In at least one embodiment of the present invention, the number of the first light source and the second light source is plural and forms a light source array.

[0012] In at least one embodiment of the present invention, there is a gap between the first light source and the second light source, and the reflector cup includes a first reflecting portion and a second reflecting portion, the first reflecting portion being used to reflect the first color light generated by the first light source, and the second reflecting portion being used to reflect the second color light generated by the second light source.

[0013] In at least one embodiment of the present invention, the first and second reflecting portions are reflecting surfaces of different shapes, angles or curvatures.

[0014] In at least one embodiment of the present invention, the first color light is white light and the second color light is yellow light.

[0015] In at least one embodiment of the present invention, the multi-light source lighting module further includes a control circuit and a switch. The control circuit is used to control the on / off of the first light source and the second light source. The switch is used to transmit a trigger signal to the control circuit. When the first light source is on, the control circuit turns on or off the second light source by receiving a specific number of trigger signals as one cycle.

[0016] In at least one embodiment of the present invention, when the control circuit receives a trigger signal a specific number of times while the first light source is on, it turns on the second light source based on that cycle and keeps the first light source on.

[0017] In at least one embodiment of the present invention, the control circuit includes a first driver and a second driver, the first driver being used to supply power to the first light source, and the second driver being used to supply power to the second light source.

[0018] In at least one embodiment of the present invention, when the control circuit receives a specific number of trigger signals while the first light source is off, it turns on the second light source based on the cycle, or when the control circuit receives a specific number of trigger signals while the first light source is on, it turns on the second light source based on the cycle and turns off the first light source.

[0019] In at least one embodiment of the present invention, the control circuit includes a driver and a switch, wherein the driver is used to supply power to the switch and output power to the first light source or the second light source via the switch.

[0020] In at least one embodiment of the present invention, the first light source and the second light source are each a light emitting diode.

[0021] In at least one embodiment of the invention, the automotive lighting system further comprises at least one auxiliary lighting module integrated into the socket. [Effects of the Invention]

[0022] In practical application, the headlights of a general vehicle can be directly replaced with the multi-light source lighting module or automotive lamp described in the present invention, and by adjusting the vehicle lamp control lever inside the vehicle, the vehicle can generate an illumination source in bad weather. In other words, the multi-light source lighting module or automotive lamp described in the present invention can be quickly and easily installed on a general vehicle, improving the safety of the vehicle when driving. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a schematic structural diagram of an embodiment of an automotive lighting device equipped with a multi-light source lighting module according to the present invention. [Figure 2] FIG. 2 is a schematic cross-sectional view of an embodiment of a multi-light source lighting module according to the present invention. [Figure 3] FIG. 3 is a schematic cross-sectional view of a further embodiment of a multi-source lighting module according to the present invention. [Figure 4] FIG. 4 is a schematic structural diagram of an embodiment of a light source array in a multi-light source lighting module of the present invention. [Figure 5] FIG. 5 is a schematic connection diagram of one embodiment of the light sources, control circuit, and switch in the multi-light source lighting module of the present invention. [Figure 6]FIG. 6 is a schematic connection diagram of a further embodiment of the light sources and control circuit in the multi-light source lighting module of the present invention. [Figure 7] FIG. 7 is a schematic connection diagram of a further embodiment of the light source and control circuit in the multi-light source lighting module of the present invention. [Figure 8] FIG. 8 is a schematic perspective view of a further embodiment of a multi-light source lighting module according to the present invention. [Figure 9] FIG. 9 is a schematic cross-sectional view of a further embodiment of a multi-source lighting module according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] FIG. 1 shows a schematic structural diagram of an embodiment of an automotive lamp equipped with a multi-light source lighting module according to the present invention. The automotive lamp 1 includes a plurality of multi-light source lighting modules 100. The plurality of multi-light source lighting modules 100 are integrated into the same socket 1a. In a specific embodiment, the automotive lamp 1 may be a group of automotive headlights. In practical application, a group of general automotive headlights can be directly replaced with the automotive lamp 1 according to the present invention, thereby improving the lighting effect of the vehicle.

[0025] In a specific embodiment, the automotive lamp 1 of the present invention further includes an auxiliary lighting module 100a. The auxiliary lighting module 100a is integrated into the socket 1a. In one embodiment of the present invention, the multi-light source lighting module 100 may be a low beam module, and the auxiliary lighting module 100a may be a high beam module. In another embodiment of the present invention, the multi-light source lighting module 100 may be a high beam module, and the auxiliary lighting module 100a may be a low beam module.

[0026] As shown in FIGS. 1 and 2, the multi-light source illumination module 100 includes at least one light path adjusting member 110, at least one first light source 121, and at least one second light source 122.

[0027] As shown in FIGS. 1 and 2, the first light source 121 and the second light source 122 are used to generate a first color light L1 and a second color light L2, respectively. The first color light L1 and the second color light L2 have different wavelengths, colors, or color temperatures. For example, the first color light L1 is white light, and the second color light L2 is yellow light. In a specific embodiment, the first light source 121 and the second light source 122 are light-emitting diodes (LEDs). However, the fact that the first light source 121 and the second light source 122 are LEDs is merely one embodiment of the present invention and does not limit the scope of the claims of the present invention. The first light source 121 and the second light source 122 in the present invention may be other types of light sources.

[0028] 1 and 2, the first light source 121 is used to project the first color light L1 onto the light path adjusting member 110, and the second light source 122 is used to project the second color light L2 onto the light path adjusting member 110. The light path adjusting member 110 uses reflection, refraction, a combination of reflection and refraction, or other light path adjusting methods to project the first color light L1 and the second color light L2 forward of the multi-light source lighting module 100, thereby causing the first color light L1 and the second color light L2 to partially or completely overlap.

[0029] 1 and 2, in a specific embodiment of the present invention, the light path adjusting member 110 is a reflector cup having an inner concave reflective surface 110a. The first color light L1 and the second color light L2 reach different points on the inner concave reflective surface 110a. As shown in FIG. 2, the inner concave reflective surface 110a has different curvatures at these points. For example, the first color light L1 and the second color light L2 are projected onto different regions of the inner concave reflective surface 110a, but the regions onto which the first color light L1 and the second color light L2 are projected have different curvatures or reflection angles.

[0030] 3, in a specific embodiment of the present invention, the first light source 121 and the second light source 122 may be combined to form a single color-changeable light-emitting module 12. In this case, the projection ranges of the first color light L1 and the second color light L2 overlap. For example, the color-changeable light-emitting module 12 may be a two-chip encapsulated light-emitting diode device that can generate light of different colors.

[0031] The reflector cup of the present invention may be a spherical reflector or an aspherical reflector, for example, a parabolic mirror.

[0032] In one embodiment of the present invention, the first light source 121 is closely adjacent to the second light source 122. For example, the first light source 121 and the second light source 122 are closely arranged. They are also close to the focal point or center of the reflector cup. The first light source 121 and the second light source 122 simultaneously project the first color light L1 and the second color light L2 onto the reflector cup (light path adjusting member 110), and the first color light L1 and the second color light L2 can be reflected forward through the reflector cup toward the front of the multi-light source lighting module 100. This allows the first color light L1 and the second color light L2 to partially overlap, forming an illumination source for bad weather.

[0033] In one embodiment of the present invention, the projection height / angle of the second colored light L2 is set to be lower than that of the first colored light L1, which prevents the second colored light L2 (especially when a yellow light is used) from affecting oncoming vehicles and also provides sufficient illumination for nearby ground.

[0034] 1, 2, and 4, the first light source 121 and the second light source 122 are adjacent to each other. For example, a plurality of first light sources 121 and a plurality of second light sources 122 may be closely arranged to form a light source array 120.

[0035] 4, the light source array 120 may include nine light emitting diodes, for example, three first light sources 121 and six second light sources 122, with the second light sources 122 provided on both sides of the three first light sources 121.

[0036] 4 is merely an example, and in actual application, the size of the array can be adjusted according to the light type and illumination needs, and the number and positions of the first light sources 121 and second light sources 122 of the light source array 120 can be adjusted, so that the first color light L1, the second color light L2, and the light type of the illumination light source for bad weather generated by the multi-light source lighting module 100 comply with the requirements of relevant laws and regulations.

[0037] As shown in FIG. 5 , the multi-light source lighting module 100 further includes a control circuit 130 and a switch 140. The control circuit 130 is used to control the on / off of the first light source 121 and the second light source 122. For example, the control circuit 130 may be a multi-stage switching device. The switch 140 may be a high beam selector switch or a passing switch of a vehicle. The switch 140 is used to transmit a trigger signal to the control circuit 130. As a result, the control circuit 130 switches the on / off of the first light source 121 and the second light source 122 based on the trigger signal.

[0038] When the first light source 121 is on, the control circuit 130 turns the second light source 122 on or off with one cycle consisting of receiving a specific number of trigger signals. For example, the control circuit 130 turns the second light source 122 on every three triggers of the switch 140. When triggered again, the control circuit 130 turns the second light source 122 off until the switch 140 triggers three times again to turn the second light source 122 on again.

[0039] Specifically, the multi-light source lighting module 100 of the present invention may have three operating modes, among which, in the first operating mode, neither the first light source 121 nor the second light source 122 emits light, and is usually used in daytime or in a driving environment with sufficient lighting.

[0040] In the second operating mode, the first light source 121 and the second light source 122 of the multi-light-source lighting module 100 can emit light simultaneously. First, the first light source 121 is turned on to emit the first colored light L1, but the second light source 122 does not emit light. When the control circuit 130 receives a trigger signal a specific number of times while the first light source 121 is on, it turns on the second light source 122 to emit the second colored light L2 based on that cycle, and also keeps the first light source 121 on to emit the first colored light L1. This allows the multi-light-source lighting module 100 to simultaneously emit the first colored light L1 and the second colored light L2. The second operating mode is typically used at night or in driving environments with insufficient lighting.

[0041] 6, the first light source 121 and the second light source 122 may be turned on simultaneously (e.g., in the second operating mode). Therefore, the control circuit 130 may include a first driver 131 and a second driver 132. The first driver 131 is used to supply power to the first light source 121, and the second driver 132 is used to supply power to the second light source 122. The two drivers can supply sufficient power to the first light source 121 and the second light source 122. This prevents a situation in which the brightness of the first color light L1 and the second color light L2 is insufficient due to a current that can be output by a single driver being too low.

[0042] 6 shows the first driver 131 and the second driver 132 integrated into the control circuit 130, but this is merely one embodiment of the present invention and does not limit the scope of the claims of the present invention. In another embodiment, the first driver 131 and the second driver 132 may be installed externally to the control circuit 130. For example, the first driver 131 is located between the control circuit 130 and the first light source 121, and the second driver 132 is located between the control circuit 130 and the second light source 122.

[0043] In the third operating mode, only one of the first light source 121 and the second light source 122 of the multi-light source lighting module 100 is turned on. In this case, when the first light source 121 is off, the control circuit 130 turns on the second light source 122 based on the cycle upon receiving a specific number of trigger signals. Also, when the first light source 121 is on and the low beam module is on, the control circuit 130 turns on the second light source 122 based on the cycle upon receiving a specific number of trigger signals, and turns off the first light source 121.

[0044] 7, when the first light source 121 and the second light source 122 cannot be turned on at the same time, the total power required to turn on the light sources and maintain sufficient illuminance is small. In this case, the control circuit 130 only includes a driver 133 and a switch 134. The driver 133 is used to supply power to the switch 134 and output the power to the first light source 121 or the second light source 122 via the switch 134.

[0045] 7 shows the driver 133 integrated within the control circuit 130, this is merely one embodiment of the present invention and is not intended to limit the scope of the claims of the present invention. In other embodiments, the driver 133 may be external to the control circuit 130.

[0046] 8 and 9, in another embodiment of the present invention, a gap is provided between the first light source 121 and the second light source 122, and the reflector cup includes a first reflecting portion 111 and a second reflecting portion 112. The first reflecting portion 111 and the second reflecting portion 112 have different reflective surfaces. That is, the first reflecting portion 111 and the second reflecting portion 112 have different curvatures or reflection angles. The first reflecting portion 111 is used to reflect the first color light L1 generated by the first light source 121, and the second reflecting portion 112 is used to reflect the second color light L2 generated by the second light source 122.

[0047] In one embodiment of the present invention, the multi-light source lighting module 100 may include a projection lens located downstream of the optical path of the reflector cup. The first color light L1 and / or the second color light L2 reflected by the optical path adjusting member 110 passes through the projection lens and is projected forward of the multi-light source lighting module 100.

[0048] In practical application, the headlight cluster of a general vehicle can be directly replaced with the multi-light source lighting module 100 of the present invention, and by adjusting the vehicle lighting control lever inside the vehicle, the vehicle can generate illumination light sources in bad weather. In other words, the headlight cluster of the present invention can be quickly and easily installed on a general vehicle, improving the safety of the vehicle when driving.

[0049] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. That is, all equivalent modifications and additions based on the shape, structure, features and spirit described in the claims of the present invention are included in the claims of the present invention. [Explanation of symbols]

[0050] 1 Automobile lights 1a socket 100 Multi-light source lighting module 100a auxiliary lighting module 110 Optical path adjustment member 110a Inner recessed reflective surface 111 1st reflection section 112 2nd reflection section 12 Color-changing light-emitting modules 120 Light Source Array 121 1st light source 122 Second light source 130 control circuit 131 First Drive Unit 132 Second Drive Unit 133 Drive unit 134 Switching Device 140 Switch L1 1st color light L2 Second color light

Claims

1. 1. A multi-source lighting module, comprising: At least one optical path adjusting member; at least one first light source for generating a first color light and projecting the first color light onto the optical path adjusting member; at least one second light source for generating second color light and projecting the second color light onto the optical path adjustment member; a control circuit for controlling the first light source and the second light source to be turned on; and a switch for transmitting a trigger signal to the control circuit; the optical path adjusting member projects the first color light and the second color light forward of the multi-light-source illumination module, thereby superimposing a part or all of the first color light and the second color light; When the first light source is turned on, the control circuit turns on the second light source by receiving the trigger signal a specific number of times, which counts as one cycle, and then turns off the second light source by receiving the trigger signal again the specific number of times, the specific number being multiple times.

2. The multi-light source lighting module according to claim 1 , wherein the light path adjusting member is a reflector cup having an inner concave reflective surface.

3. 3. The multi-light source lighting module according to claim 2, wherein the first color light and the second color light reach different points on the inner concave reflective surface, and the inner concave reflective surface has different curvatures or reflection angles at these reaching points.

4. 3. The multi-light source lighting module of claim 2, wherein the first light source and the second light source are combined to form a single color-changeable light-emitting module, and the projection ranges of the first color light and the second color light overlap.

5. 3. The multi-light source lighting module of claim 2, wherein the first light source is closely adjacent to the second light source and is proximate to a focal point or center of the reflector cup.

6. The multi-light source lighting module according to claim 4 , wherein the first light sources and the second light sources are plural in number and form a light source array.

7. 3. The multi-light source lighting module of claim 2, wherein a gap is provided between the first light source and the second light source, and the reflector cup includes a first reflecting portion and a second reflecting portion, the first reflecting portion being used to reflect the first color light generated by the first light source, and the second reflecting portion being used to reflect the second color light generated by the second light source.

8. The multi-light source lighting module according to claim 7 , wherein the first reflecting portion and the second reflecting portion are reflecting surfaces with different shapes, angles, or curvatures.

9. 2. The multi-light source lighting module of claim 1, wherein the first color light is white light and the second color light is yellow light.

10. 2. The multi-light source lighting module of claim 1, wherein when the control circuit receives the trigger signal a specific number of times while the first light source is on, the control circuit turns on the second light source based on that cycle and keeps the first light source on.

11. The control circuit a first driver for supplying power to the first light source; 10. The multi-light source lighting module of claim 1, further comprising: a second driver for supplying power to the second light source.

12. When the control circuit receives the trigger signal a specific number of times while the first light source is off, the control circuit turns on the second light source based on that cycle; or The multi-light source lighting module of claim 1 , wherein when the control circuit receives the trigger signal a specific number of times while the first light source is on, the control circuit turns on the second light source and turns off the first light source based on that cycle.

13. The multi-light source lighting module of claim 12, wherein the control circuit includes a driving device and a switching device, and the driving device is used to supply power to the switching device and output power to the first light source or the second light source via the switching device.

14. The multi-light source lighting module according to claim 1 , wherein the first light source and the second light source are each a light emitting diode.

15. 10. An automotive lighting system comprising a plurality of multi-light source lighting modules according to claim 1 integrated within the same socket.

16. 16. The automotive lamp of claim 15, further comprising at least one auxiliary lighting module integrated into said socket.

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