Light emitting device
By designing a light emitting device including LED light strips, light type adjustment units and white LED point light sources, the problems of high cost and uneven light emission in existing car lights are solved, and the effects of diversification of functions and cost reduction are achieved.
Patent Information
- Application Number
- CN202420553412.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The daytime running lights and turn signals in the existing headlight industry usually share the luminous surface, using multiple LEDs leads to high costs, and the daytime running lights are unevenly luminous.
A light emitting device is designed, including an LED light strip, a light type adjustment unit, a white LED point light source, a front light guide and a lampshade. The yellow light is guided into the front light guide through the light type adjustment unit to achieve uniform light emission and reduce costs through a white LED point light source.
The functions of daytime running lights and sweeping water turn signals are realized, which reduces costs and achieves a uniform luminous effect through light-type adjustment unit and front light guide.
Smart Images
Figure CN222578013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical structures, in particular to a light-emitting device. Background Art
[0002] The current automotive lighting industry typically creates a shared light-emitting surface for daytime running lights and turn signals, with the turn signals also required to feature a sweeping, flowing light pattern. The common industry practice is to use thick-walled components and multiple white and yellow LEDs to achieve both the daytime running light and the sweeping, flowing light pattern. However, the use of multiple LEDs leads to high costs and also creates the problem of uneven light emission for the daytime running lights.
[0003] Therefore, it is necessary to design a light-emitting device that can realize the functions of daytime running lights and sweeping water turn signals, and has low cost and uniform light emission. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a light emitting device which can realize the functions of a daytime running light and a sweeping water turn signal light and has low cost and uniform light emission.
[0005] The technical solution of the present utility model provides a light-emitting device, including an LED light strip, a light pattern adjustment unit, a white light LED point light source, a front light guide and a lampshade, wherein the LED light strip includes multiple yellow light LED point light sources, the light pattern adjustment unit is used to direct the yellow light emitted by the LED light strip into the front light guide, the white light LED point light source is located at one end of the front light guide, and the front light guide emits light from the lampshade.
[0006] Furthermore, the light pattern adjustment unit is located behind the front light guide, and the front light guide is located behind the lampshade.
[0007] Furthermore, the light pattern adjustment unit includes a plurality of reflective bowls arranged in a row and a long dimming lens, the LED light strip is located above the reflective bowl, each reflective bowl corresponds to one of the yellow LED point light sources, and the dimming lens is located in front of the reflective bowl, and the reflective bowl is used to reflect the light from the yellow LED point light source into the dimming lens.
[0008] Furthermore, the dimming lens is used to adjust the light into parallel light.
[0009] Furthermore, the light pattern adjustment unit includes a double-layer lens, the LED light strip is located behind the double-layer lens, and the double-layer lens adjusts the light of the LED light strip to emit parallel light.
[0010] Furthermore, the double-layer lens includes a focusing lens and a dimming lens, the focusing lens faces the LED light strip, the dimming lens faces the front light guide, and the focusing lens and the dimming lens are integrally formed.
[0011] Furthermore, a yellow filter switching unit is provided between the white light LED point light source and the front light guide.
[0012] Furthermore, the yellow filter switching unit includes a solenoid valve and a connecting rod, the solenoid valve controls the rotation of the connecting rod, and the end of the connecting rod is connected to the yellow filter.
[0013] Furthermore, a yellow light point light source is provided at the white light LED point light source, and the yellow light point light source is also located at the end of the front light guide.
[0014] Furthermore, a light strip controller is included, and the light strip controller is used to control the lighting sequence of the multiple yellow LED point light sources in the LED light strip.
[0015] The above technical solution has the following beneficial effects:
[0016] In this invention, the light pattern adjustment unit guides the yellow light into the front light guide, which then emits the yellow light evenly. Simultaneously, the front light guide evenly distributes the light from the white LED point light source at one end. Since only one white LED point light source is used, costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:
[0018] Figure 1 This is a top view of the light-emitting device in Example 1 of the present utility model;
[0019] Figure 2 This is a side view of the light emitting device in Example 1 of the present utility model;
[0020] Figure 3 This is a top view of the light-emitting device in the second embodiment of the present utility model;
[0021] Figure 4 This is a side view of the light emitting device in the second embodiment of the present utility model;
[0022] Figure 5 This is a top view of the light-emitting device in the third embodiment of the present utility model;
[0023] Figure 6This is a schematic diagram of the yellow filter switching unit in the third embodiment of the present invention in a removed state;
[0024] Figure 7 This is a schematic diagram of the yellow filter switching unit in the third embodiment of the present invention in an extended state;
[0025] Figure 8 This is a top view of the light-emitting device in the fourth embodiment of the present utility model.
[0026] Reference table of accompanying symbols:
[0027] LED light strip 1: yellow LED point light source 11;
[0028] White light LED point light source 2, front light guide 3, lampshade 4, reflector bowl 5, dimming lens 6, focusing lens 7;
[0029] Yellow filter switching unit 8: solenoid valve 81, connecting rod 82, yellow filter 83. DETAILED DESCRIPTION
[0030] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.
[0031] It is easy to understand that according to the technical solution of the present invention, a variety of structural methods and implementation methods can be replaced by those skilled in the art without changing the essential spirit of the present invention. Therefore, the following specific embodiments and drawings are only illustrative of the technical solution of the present invention and should not be regarded as the entire present invention or as a limitation or restriction of the technical solution of the utility model.
[0032] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to the structure shown in the drawings. They are relative concepts and may vary depending on the location and usage of the device. Therefore, these or other directional terms should not be interpreted as restrictive.
[0033] In the present invention, the light-emitting device includes an LED light strip 1, a light pattern adjustment unit, a white light LED point light source 2, a front light guide 3 and a lampshade 4. The LED light strip 1 includes multiple yellow light LED point light sources 11. The light pattern adjustment unit is used to direct the yellow light emitted by the LED light strip 1 into the front light guide 3. The white light LED point light source 2 is located at one end of the front light guide 3, and the front light guide 3 emits light from the lampshade 4.
[0034] The LED light strip 1 includes multiple yellow LED point light sources 11, which are evenly spaced and arranged to form a light strip. Each yellow LED point light source 11 emits yellow light. When the yellow LED point light sources 11 are lit in sequence, the function of a sweeping water turn signal can be achieved.
[0035] When the LED light strip 1 is not emitting light, the white LED point light source 2 emits white light, and emits the light from the lampshade 4 through the front light guide 3, thereby realizing the function of a daytime running light.
[0036] The light pattern adjustment unit adjusts the yellow light from the LED strip 1, directing it into a parallel, uniform pattern. The front light guide 3 forms a light surface, increasing the uniformity, softness, and luminous area of the light. The lampshade 4 provides both protection and decoration.
[0037] In this embodiment, the daytime running light and the sweeping water turn signal functions can be realized, and since only one white light LED point light source is arranged, the cost is reduced; through the adjustment of the light pattern adjustment unit and the front light guide, a uniform lighting effect is achieved.
[0038] Example 1:
[0039] like Figure 1-2 As shown, the light-emitting device includes an LED light strip 1, a light pattern adjustment unit, a white LED point light source 2, a front light guide 3, and a lampshade 4. The LED light strip 1 includes multiple yellow LED point light sources 11. The light pattern adjustment unit is used to direct the yellow light emitted by the LED light strip 1 into the front light guide 3. The white LED point light source 2 is located at one end of the front light guide 3, and the front light guide 3 emits light from the lampshade 4. The light pattern adjustment unit is located behind the front light guide 3, which is also located behind the lampshade 4.
[0040] The light pattern adjustment unit includes multiple reflective bowls 5 arranged in a row and a long dimming lens 6. The LED light strip 1 is located above the reflective bowls 5. Each reflective bowl 5 corresponds to a yellow LED point light source 11. The dimming lens 6 is located in front of the reflective bowls 5. The reflective bowls 5 are used to reflect the light from the yellow LED point light source 11 into the dimming lens 6. The dimming lens 6 is used to adjust the light into parallel light.
[0041] Specifically, the LED light strip 1 is located above the reflective bowl 5 , the reflective bowl 5 is located behind the dimming lens 6 , and the reflective surface faces the dimming lens 6 and the LED light strip 1 , and the dimming lens 6 is located behind the front light guide 3 .
[0042] like Figure 1 As shown, there are multiple reflective bowls 5, and each reflective bowl 5 corresponds to a yellow LED point light source 11. The dimming lens 6 and the front light guide 3 are long strips.
[0043] like Figure 2 As shown, when the yellow LED point light source 11 emits light, the light is incident on the reflective surface of the reflective bowl 5, and the reflective bowl 5 then converges the light onto the dimming lens 6. The dimming lens 6 adjusts the light into a parallel and uniform light beam, and then enters the front light guide 3. The front light guide 3 further evens out the light to form a soft luminous surface, and finally emits from the lampshade 4.
[0044] Example 2:
[0045] like Figure 3-4 As shown, the difference between the second embodiment and the first embodiment is that the light pattern adjustment unit includes a double-layer lens, the LED light strip 1 is located behind the double-layer lens, and the double-layer lens adjusts the light of the LED light strip 1 into parallel light.
[0046] The double-layer lens includes a focusing lens 7 and a dimming lens 6 . The focusing lens 7 faces the LED light strip 1 , and the dimming lens 6 faces the front light guide 3 . The focusing lens 7 and the dimming lens 6 are integrally formed.
[0047] like Figure 3 As shown, the focusing lens 7 and the dimming lens 6 are both long strips and are located in front of the LED light strip 1. The yellow light emitted by the LED light strip 1 first directly enters the focusing lens 7, which converges the light to the dimming lens 6. The dimming lens 6 then adjusts the light into a parallel and uniform light beam. The parallel light then enters the front light guide 3, which further evens out the light to form a soft luminous surface, and finally emits it from the lampshade 4.
[0048] In this embodiment, the focusing lens 7 and the dimming lens 6 are integrally formed, so that the overall structure is simpler, easier to install, and the cost is reduced.
[0049] Example 3:
[0050] like Figure 5 As shown, the difference between the third embodiment and the second embodiment is that a yellow filter switching unit 8 is further provided between the white light LED point light source 2 and the front light guide 3 .
[0051] like Figure 6-7 As shown, the yellow filter switching unit 8 includes a solenoid valve 81 and a connecting rod 82 . The solenoid valve 81 controls the rotation of the connecting rod 82 , and the end of the connecting rod 82 is connected to the yellow filter 83 .
[0052] The solenoid valve 81 is used to control the rotation of the connecting rod 82 , and the connecting rod 82 is used to drive the movement of the yellow filter 83 , so that the yellow filter 83 switches between a removed state and an extended state.
[0053] like Figure 6As shown, when the solenoid valve 81 is not turned on, the connecting rod 82 rotates to move the yellow filter 83 away from between the white light LED point light source 2 and the front light guide 3. At this time, the white light emitted by the white light LED point light source 2 is evenly emitted through the front light guide 3.
[0054] like Figure 7 As shown, when solenoid valve 21 is turned on, it controls the rotation of connecting rod 82, which drives yellow filter 83 to extend between white LED point light source 2 and front light guide 3. Yellow filter 83 filters the white light emitted by white LED point light source 2 into yellow light. The yellow light enters front light guide 3, which then emits a uniform yellow light. At this time, LED light strip 1 can also emit light simultaneously, enhancing the brightness of the yellow light.
[0055] Example 4:
[0056] like Figure 8 As shown, the difference between the fourth embodiment and the third embodiment is that no yellow filter switching unit 8 is provided, but a yellow light point light source is provided at the white light LED point light source 2 , and the yellow light point light source is also located at the end of the front light guide 3 .
[0057] When the white LED point light source 2 is controlled to emit light, the front light guide 3 emits uniform white light. When the yellow point light source is controlled to emit light, the front light guide 3 emits uniform yellow light. When the yellow point light source and the LED light strip 1 emit light simultaneously, the uniformity and brightness of the yellow light can be enhanced.
[0058] Preferably, a light strip controller is further included, which is used to control the lighting sequence of the multiple yellow LED point light sources 11 in the LED light strip 1. When the light strip controller controls the LED light strip 1 to light up in sequence, the yellow point light sources light up, and the front light guide 3 emits yellow light, increasing the uniformity and brightness of the yellow light.
[0059] In this invention, the light pattern adjustment unit guides the yellow light into the front light guide, which then emits the yellow light evenly. Simultaneously, the front light guide evenly distributes the light from the white LED point light source at one end. Since only one white LED point light source is used, costs are reduced.
[0060] The above description is only the principle and preferred embodiment of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other variations can be made, which should also be considered as the scope of protection of the present invention.
Claims
1. A light emitting device, characterized in that: It includes an LED light strip, a light pattern adjustment unit, a white light LED point light source, a front light guide and a lampshade, wherein the LED light strip includes a plurality of yellow light LED point light sources, the light pattern adjustment unit is used to allow the yellow light emitted by the LED light strip to be incident on the front light guide, the white light LED point light source is located at one end of the front light guide, and the front light guide emits light from the lampshade.
2. The light emitting device according to claim 1, characterized in that: The light pattern adjustment unit is located behind the front light guide, and the front light guide is located behind the lamp cover.
3. The light emitting device according to claim 2, characterized in that: The light pattern adjustment unit includes a plurality of reflective bowls arranged in a row and a long dimming lens. The LED light strip is located above the reflective bowl. Each reflective bowl corresponds to one of the yellow LED point light sources. The dimming lens is located in front of the reflective bowl. The reflective bowl is used to reflect the light from the yellow LED point light source into the dimming lens.
4. The light emitting device according to claim 3, characterized in that: The dimming lens is used to adjust the light into parallel light.
5. The light emitting device according to claim 2, characterized in that: The light pattern adjustment unit comprises a double-layer lens, the LED light strip is located behind the double-layer lens, and the double-layer lens adjusts the light of the LED light strip into parallel light for emission.
6. The light emitting device according to claim 5, characterized in that: The double-layer lens includes a focusing lens and a dimming lens. The focusing lens faces the LED light strip, and the dimming lens faces the front light guide. The focusing lens and the dimming lens are integrally formed.
7. The light emitting device according to claim 1, characterized in that: A yellow filter switching unit is also provided between the white light LED point light source and the front light guide.
8. The light emitting device according to claim 7, characterized in that: The yellow filter switching unit comprises a solenoid valve and a connecting rod, the solenoid valve controls the rotation of the connecting rod, and the end of the connecting rod is connected to the yellow filter.
9. The light emitting device according to claim 1, characterized in that: A yellow light point light source is also arranged at the white light LED point light source, and the yellow light point light source is also located at the end of the front light guide.
10. The light emitting device according to claim 1, characterized in that: It also includes a light strip controller, which is used to control the lighting sequence of the multiple yellow LED point light sources in the LED light strip.