Multi-light source lighting module and automotive lighting device using the same

Abstract

To provide a multi-light source illumination module that can be quickly and conveniently installed on general vehicles, so as to improve their safety during driving, and a vehicle lamp including the multi-light source illumination module.SOLUTION: A multi-light source illumination module 100 includes at least one lens unit 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 lens unit. The second light source is configured to generate a second color light and project the second color light to the lens unit. The lens unit 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 part, 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 car headlights, they can generate high-brightness white light, and can reliably achieve lighting effects in general situations. However, the white light generated by LED car headlights has a high color temperature, and in bad weather, it is often impossible to achieve the desired lighting effects. For example, in weather such as rain, snow, or fog, this can further affect the line of sight when driving, which in turn affects driving safety.

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

[0004] In order to improve the shortcomings of the conventional LED vehicle headlights, the present invention further proposes to install a multi-color light source in the lighting module of the vehicle lamp, so that different color lights can be generated simultaneously, thereby significantly improving the problem that the conventional LED vehicle headlights have poor lighting effect in bad weather.

[0005] The present invention provides a multi-light source lighting module including at least one lens unit, at least one first light source, and at least one second light source. The first light source is used to generate a first color light and project the first color light onto the lens unit. The second light source is used to generate a second color light and project the second color light onto the lens unit. The lens unit projects the first color light and the second color light forward of the multi-light source lighting module, thereby overlapping a part or all of the first color light and the second color light. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a multi-light source lighting module, which includes at least one lens unit, at least one first light source used to generate a first color light and project the first color light onto the lens unit, and at least one second light source used to generate a second color light and project the second color light onto the lens unit. The lens unit projects the first color light and the second color light forward of the multi-light source lighting module, thereby overlapping a part or all of the first color light and the second color light.

[0007] The present invention further provides an automotive lighting system including the above-mentioned multiple light source lighting module integrated in the same socket.

[0008] In at least one embodiment of the present invention, the lens unit is a lens having a light entrance surface. The first light source is in close contact with the second light source and is close to the optical axis of the lens. The first color light and the second color light are incident at different positions on the light entrance surface.

[0009] In at least one embodiment of the present invention, the first light source and the second light source are combined to form a 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 present invention, the number of the first light sources and the second light sources is plural and forms a light source array.

[0011] 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 lens unit includes a first lens unit and a second lens unit, the first lens unit is used to refract a first color light generated by the first light source, and the second lens unit is used to refract a second color light generated by the second light source.

[0012] In at least one embodiment of the invention, the first lens unit and the second lens unit have different focal lengths.

[0013] In at least one embodiment of the invention, the first lens unit and the second lens unit are provided separately.

[0014] In at least one embodiment of the invention, the first lens unit and the second lens unit are integrally molded.

[0015] In at least one embodiment of the present invention, the first color light is white light and the second color light is yellow light.

[0016] 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 first light source and the second light source to be on or off. The switch is used to transmit a trigger signal to the control circuit. When the first light source is on, the control circuit turns the second light source on or off every time a certain number of trigger signals are received.

[0017] In at least one embodiment of the present invention, when the control circuit receives a trigger signal a certain 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.

[0018] 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 provide power to the first light source, and the second driver being used to provide power to the second light source.

[0019] In at least one embodiment of the present invention, when the control circuit receives a certain number of trigger signals while the first light source is off, the control circuit turns on the second light source based on the cycle, or when the control circuit receives a certain number of trigger signals while the first light source is on, the control circuit turns on the second light source based on the cycle and turns off the first light source.

[0020] In at least one embodiment of the present invention, the control circuit includes a driving device and a switching device, The driving device is used to supply power to the switching device and output the power to the first light source or the second light source via the switching device.

[0021] In at least one embodiment of the present invention, the first light source and the second light source are each a light emitting diode.

[0022] In at least one embodiment of the invention, the automotive lighting system further comprises at least one auxiliary lighting module integrated in the socket. Effect of the Invention

[0023] In practical application, the vehicle headlight group of a general vehicle can be directly replaced with the multi-light source lighting module described in the present invention, and the vehicle can generate a lighting source in bad weather by adjusting the vehicle lighting control lever in the vehicle. In other words, the vehicle headlight group described in the present invention can be quickly and easily installed on a general vehicle, improving the safety of the vehicle when driving. [Brief description of the drawings]

[0024] [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. [Diagram 2]FIG. 2 is a schematic cross-sectional view of an embodiment of a multi-light source lighting module according to the present invention. [Diagram 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. [Diagram 5] FIG. 5 is a schematic connection diagram of one embodiment of the light sources, the control circuit, and the switches in the multi-light source lighting module of the present invention. [Figure 6] FIG. 6 is a schematic connection diagram of one embodiment of the light sources and the 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 sources and control circuit in the multi-light source lighting module of the present invention. [Figure 8] FIG. 8 is a schematic cross-sectional view of a further embodiment of a multi-source lighting module according to the present invention. [Figure 9] FIG. 9 is a schematic structural diagram of a further embodiment of an automotive lamp equipped with a multi-light source lighting module in accordance with the present invention. [Figure 10] FIG. 10 is a schematic perspective view of an embodiment of a lens unit of a multi-light source lighting module according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] FIG. 1 shows a schematic structural diagram of an embodiment of an automotive lamp equipped with a multi-light source lighting module of 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 can be a group of headlights of an automobile. In practical application, the group of headlights of a general automobile can be replaced with the automotive lamp 1 of the present invention, thereby improving the lighting effect of the automobile.

[0026] In a specific embodiment, the above-mentioned automotive lighting device 1 of the present invention further includes an auxiliary lighting module 100a. And, the multi-light source lighting module 100 and the auxiliary lighting module 100a are integrated in 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. Also, 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.

[0027] As shown in FIGS. 1 and 2, the multi-light source illumination module 100 includes at least one lens unit 110, at least one first light source 121, and at least one second light source 122.

[0028] As shown in FIG. 1 and FIG. 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 a white light, and the second color light L2 is a yellow light. In a specific embodiment, the first light source 121 and the second light source 122 are light emitting diodes (LEDs). However, the first light source 121 and the second light source 122 being LEDs is merely an embodiment of the present invention, and does not limit the scope of the present invention. The first light source 121 and the second light source 122 may be other types of light sources.

[0029] 1 and 2, the first light source 121 is used to project a first color light L1 onto the lens unit 110, and the second light source 122 is used to project a second color light L2 onto the lens unit 110. The first color light L1 and the second color light L2 are incident on the lens unit 110 at different positions. The first color light L1 and the second color light L2 are refracted by the lens unit 110 and projected forward of the multi-light source lighting module 100. As a result, the first color light L1 and the second color light L2 are partially or entirely overlapped.

[0030] As shown in Fig. 1 and Fig. 2, in a specific embodiment, the lens unit 110 is a single lens and has a light-entering surface 110a. The first color light L1 and the second color light L2 generated by the first light source 121 and the second light source 122 enter the lens unit 110 from the light-entering surface 110a. The first color light L1 and the second color light L2 can enter the lens unit 110 from different regions of the light-entering surface 110a, and are projected forward of the lens unit 110 after passing through the lens unit 110 and being refracted. The first color light L1 and the second color light L2 are incident at different positions on the light-entering surface 110a, and therefore aim at different angle sections after being refracted.

[0031] As shown in FIG. 3, in another embodiment, the lens unit 110 is still a single lens, but the first light source 121 and the second light source 122 are combined to form a single color-changeable light-emitting module 12. The color-changeable light-emitting module 12 can be used to generate a first color light L1 and a second color light L2. For example, the color-changeable light-emitting module 12 can be a two-chip encapsulated light-emitting diode device, and can be used to generate color lights of at least two different colors. The projection ranges of the first color light L1 and the second color light L2 overlap. For example, the first color light L1 and the second color light L2 can enter the lens unit 110 from the same or adjacent regions of the light-entering surface 110a, and are projected forward of the lens unit 110 via adjacent optical paths. And the first color light L1 and the second color light L2 are aimed at an approximately overlapping angle interval after refraction.

[0032] The lens unit 110 in the present invention may be a single lens or a lens group consisting of a plurality of lenses. Furthermore, each lens may be a spherical lens or an aspherical lens.

[0033] In one embodiment, the lens unit 110 is a lens and has a light-entering surface 110a. The first color light L1 and the second color light L2 are incident at different positions on the light-entering surface 110a. The first light source 121 is in close proximity to the second light source 122, and both are close to the optical axis Y or the focal point of the lens. For example, the first light source 121 and the second light source 122 are closely arranged and both are close to the optical axis Y of the lens. The first light source 121 and the second light source 122 can simultaneously project the generated first color light L1 and the second color light L2 onto the lens, but from different positions. The lens refracts the first color light L1 and the second color light L2, and projects the first color light L1 and the second color light L2 forward of the multi-light source lighting module 100. As a result, the first color light L1 and the second color light L2 are partially overlapped to form an illumination light source for bad weather.

[0034] 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.

[0035] 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 the first light sources 121 and a plurality of the second light sources 122 may be closely arranged to form a light source array 120.

[0036] 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, and the second light sources 122 are provided on both sides of the three first light sources 121.

[0037] 4 is only an example, and in actual application, the size of the array is adjusted according to the light type and illuminance needs, and the number and positions of the first light sources 121 and the second light sources 122 of the light source array 120 are adjusted, so that the first color light L1, the second color light L2 generated by the multi-light source lighting module 100 and the light type of the lighting light source in bad weather comply with the provisions of related laws and regulations.

[0038] 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 or 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 switching switch or a passing switching switch of a vehicle. The switch 140 is used to transmit a trigger signal to the control circuit 130. Thereby, the control circuit 130 switches the on or off of the first light source 121 and the second light source 122 based on the trigger signal.

[0039] When the first light source 121 is on, the control circuit 130 turns the second light source 122 on or off with one cycle being one specific number of times that the trigger signal is received. 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 next triggers three times to turn the second light source 122 on again.

[0040] 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.

[0041] In the second operation mode, the first light source 121 and the second light source 122 of the multiple light source lighting module 100 can emit light simultaneously. First, the first light source 121 is turned on to generate the first color 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 based on the cycle to generate the second color light L2, and keeps the first light source 121 turned on to generate the first color light L1. This allows the multiple light source lighting module 100 to generate the first color light L1 and the second color light L2 simultaneously. Usually, the second operation mode is used at night or in a driving environment with insufficient lighting.

[0042] As shown in FIG. 6, the first light source 121 and the second light source 122 may be turned on at the same time (e.g., in the second operation mode). Therefore, the control circuit 130 may include a first driving device 131 and a second driving device 132. The first driving device 131 is used to supply power to the first light source 121, and the second driving device 132 is used to supply power to the second light source 122. The two driving devices can supply sufficient power to the first light source 121 and the second light source 122. This prevents the brightness of the first color light L1 and the second color light L2 from being insufficient due to the current that can be output by a single driving device being too low.

[0043] 6 shows the first driver 131 and the second driver 132 integrated into the control circuit 130, 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 external 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.

[0044] In the third operation 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 when it receives a specific number of trigger signals. In addition, 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 and turns off the first light source 121 based on the cycle when it receives a specific number of trigger signals.

[0045] 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 driving device 133 and a switching device 134. The driving device 133 is used to supply power to the switching device 134 and output the power to the first light source 121 or the second light source 122 via the switching device 134.

[0046] 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 claimed invention. In another embodiment, the driver 133 may be external to the control circuit 130.

[0047] In another embodiment of the present invention, there is a gap between the first light source 121 and the second light source 122, as shown in Fig. 8. The lens unit 110 includes a first lens unit 111 and a second lens unit 112. The first lens unit 111 and the second lens unit 112 have different focal lengths, foci and / or curvatures, etc.

[0048] The first light source 121 faces the first lens unit 111 and projects the generated first color light L1 onto the first lens unit 111. The first lens unit 111 is used to refract the first color light L1 generated by the first light source 121. The second light source 122 faces the second lens unit 112 and projects the generated second color light L2 onto the second lens unit 112. The second lens unit 112 is used to refract the second color light L2 generated by the second light source 122.

[0049] In the embodiment of Fig. 8, first lens unit 111 and second lens unit 112 may be provided separately to correspond to first light source 121 and second light source 122, respectively. For example, first lens unit 111 and second lens unit 112 are two independent lenses. Note that Fig. 8 only shows a side view. In reality, two or more first lens units 111 or second lens units 112 may be provided lined up along the direction of the paper.

[0050] 9 and 10, first lens unit 111 and second lens unit 112 are integrated into an integrally molded member. For example, in the embodiment of FIG. 9, the edge of first lens unit 111 is connected to second lens unit 112. In addition, in the embodiment of FIG. 10, first lens unit 111 and second lens unit 112 are provided on light-transmitting substrate 114, which is used to cover first light source 121 and second light source 122.

[0051] In practical application, the vehicle headlight group of a general vehicle can be directly replaced with the above multi-light source lighting module 100 of the present invention, and the vehicle can generate a lighting source in bad weather by adjusting the vehicle lighting control lever in the vehicle. In other words, the vehicle headlight group of the present invention can be quickly and easily installed on a general vehicle, improving the safety of the vehicle when driving.

[0052] The above description is merely a preferred embodiment of the present invention, and does not limit the scope of the present invention. That is, any equivalent modifications and supplements 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]

[0053] 1 Automobile lights 1a socket 100 Multi-light source lighting module 100a Auxiliary Lighting Module 110 Lens unit 110a Light entrance surface 111 First lens unit 112 Second lens unit 114 Transparent substrate 12 Color-changing light-emitting module 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 Y optical axis

Claims

1. A multi-light-source illumination module, including at least one lens unit, at least one first light source for generating a first color light and projecting the first color light onto the lens unit, and at least one second light source for generating a second color light and projecting the second color light onto the lens unit, wherein the lens unit projects the first color light and the second color light in front of the multi-light-source illumination module, so as to partially or entirely overlap the first color light and the second color light, the lens unit is a lens and has an incident light surface, the first light source is in close contact with the second light source and is close to the optical axis of the lens, and the incident positions of the first color light and the second color light on the incident light surface are different in the multi-light-source illumination module.

2. The multi-light-source illumination module according to claim 1, wherein the first color light is white light and the second color light is yellow light.

3. Furthermore, it includes a control circuit and a switch. The control circuit is used to control the turning on of the first light source and the second light source, and the switch is used to transmit a trigger signal to the control circuit. When the first light source is lit, the control circuit turns the second light source on or off with a specific number of receptions of the trigger signal as one cycle. The multi-light-source illumination module according to claim 1.

4. The multi-light-source illumination module according to claim 3, wherein when the control circuit receives a specific number of the trigger signals when the first light source is lit, it turns on the second light source based on that cycle and maintains the lighting of the first light source.

5. The multi-light-source illumination module according to claim 3, wherein the control circuit includes a first driving device and a second driving device. The first driving device is used to supply power to the first light source, and the second driving device is used to supply power to the second light source.

6. When the control circuit receives a specific number of the trigger signals when the first light source is off, it turns on the second light source based on that cycle, or when the control circuit receives a specific number of the trigger signals when the first light source is on, it turns on the second light source based on that cycle and turns off the first light source. The multi-light-source illumination module according to claim 3.

7. 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 the power to the first light source or the second light source via the switching device. The multi-light source lighting module according to claim 6.

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

9. An automotive lighting device including a plurality of multi-light source lighting modules according to claim 1 integrated in the same socket.

10. Furthermore, the automotive lighting device according to claim 9, further including at least one auxiliary lighting module integrated in the socket.

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