Ambient lighting system

Abstract

This invention provides an ambient lighting system comprising: a diffuser lens; a plurality of light guides disposed on one side of the diffuser lens, wherein each light guide has a plurality of spaced-apart light guide teeth on its side away from the diffuser lens; and a plurality of light sources, wherein at least one end of each of the plurality of light guides is provided with one of the plurality of light sources, and light emitted from the light source enters the light guide through the corresponding end of the light guide, propagates along the light guide within the light guide, is reflected by the light guide teeth of the light guide, and then exits through the light-emitting surface of the diffuser lens. In this way, dynamic visual effects can be achieved with a small number of light sources and corresponding light guides, significantly reducing the number of light sources and effectively lowering costs.

Description

Technical Field

[0001] This invention relates to the field of ambient lighting technology, and in particular to an ambient lighting system. Background Technology

[0002] Dynamic ambient lighting is widely used in automotive interiors, smart homes, and consumer electronics to create technologically advanced and personalized lighting effects. Currently, dynamic ambient lighting typically uses an array of multiple LEDs. Light is guided to a diffused light-emitting surface behind the LED array via light guides or reflectors, and the dynamic visual effect is achieved by independently controlling the brightness and color of each LED.

[0003] In existing solutions, to achieve a relatively continuous and delicate dynamic effect, the spacing between LEDs is typically controlled at around 20mm, requiring a total of 50 to 100 LEDs. Due to the large number of LEDs, the corresponding printed circuit board assembly is longer, occupies more space, and results in higher overall costs. Furthermore, the large number of LEDs also leads to higher overall power consumption and raises concerns about heat resistance.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Summary of the Invention

[0005] One of the objectives of this invention is to provide an ambient lighting system that can achieve dynamic visual effects with a small number of light sources, thereby greatly reducing the number of light sources and effectively lowering costs.

[0006] According to one aspect of the present invention, an ambient lighting system is provided, comprising: a diffuser lens; a plurality of light guides disposed on one side of the diffuser lens, wherein each light guide has a plurality of spaced-apart light guide teeth on the side away from the diffuser lens; a plurality of light sources, wherein at least one end of each of the plurality of light guides is provided with one of the plurality of light sources, light emitted by the light source enters the light guide through the corresponding end of the light guide, propagates along the light guide within the light guide, is reflected by the light guide teeth of the light guide and exits, and then exits from the light-emitting surface of the diffuser lens after passing through the diffuser lens.

[0007] Compared with existing technologies, this invention can achieve dynamic visual effects with a small number of light sources and multiple light guides, which can greatly reduce the number of light sources and effectively reduce costs. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0009] Figure 1 This is a three-dimensional exploded view of the ambient lighting system of the present invention in one embodiment;

[0010] Figure 2 for Figure 1 A cross-sectional structural diagram of the ambient lighting system in the diagram;

[0011] Figure 3 This is a cross-sectional structural diagram of the ambient lighting system of the present invention in another embodiment;

[0012] Figure 4 This is a schematic diagram of the structure of the first type of optical guide tooth provided on the optical guide in this invention;

[0013] Figure 5 This is a schematic diagram of the structure of the second type of optical guide tooth provided on the optical guide in this invention;

[0014] Figure 6 A schematic diagram of the first brightness curve formed by the first LED;

[0015] Figure 7 A schematic diagram of the second brightness curve formed by the second LED;

[0016] Figure 8 A schematic diagram of the third brightness curve formed by the third LED;

[0017] Figure 9 A schematic diagram of the fourth brightness curve formed by the fourth LED;

[0018] Figure 10 This is a schematic diagram of the brightness curve formed when four LEDs are lit simultaneously.

[0019] Figure 11 This is a schematic diagram of the brightness curves formed when the first LED and the second LED are lit simultaneously.

[0020] Figure 12 This is a schematic diagram of the brightness curve formed when the second and fourth LEDs are lit simultaneously.

[0021] Figure 13 This is a schematic diagram of the brightness curve formed when the third ED and the fourth LED are lit simultaneously. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0024] This invention provides an improved ambient lighting control system that can achieve dynamic visual effects with a small number of light sources and multiple light guides, which greatly reduces the number of light sources and effectively lowers costs.

[0025] Figure 1 This is a three-dimensional exploded view of one embodiment of the ambient lighting system of the present invention. Figure 2 for Figure 1 A cross-sectional structural diagram of the ambient lighting system in the image. (See diagram below.) Figure 1-2 As shown, the ambient lighting system includes: a diffusion lens 110, a first light guide 120a and a second light guide 120b disposed on one side of the diffusion lens, and four light sources 131, 132, 133, and 134.

[0026] In one embodiment, each light source 131, 132, 133, and 134 is a single LED (light-emitting diode) or a group of LEDs. The LED is an LED whose color or brightness can be adjusted. In the following text, the four light sources 131, 132, 133, and 134 may also be referred to as the first LED 131, the second LED 132, the third LED 133, and the fourth LED 134, respectively. Of course, other types of light sources may be used in other embodiments.

[0027] like Figure 4 and 5 As shown, each light guide 120 has a plurality of spaced-apart light guide teeth 123 on the side away from the diffusion lens 110. In one embodiment, such as Figure 4 As shown, the shape of the optical guide tooth 123 can be rectangular. In another embodiment, as... Figure 5 As shown, the light guide tooth 123 can also be circular. In other embodiments, the light guide tooth 123 can also be polygonal or other shapes. The shape of the light guide tooth 123 is not particularly limited in this invention, as long as the light guide tooth 123 can reflect light out.

[0028] A first light source 131 (also called a first LED) is provided at the first end of the first light guide 120a, and a third light source 133 (also called a third LED) is provided at the second end of the first light guide 120a. A second light source 132 (also called a second LED) is provided at the first end of the second light guide 120b, and a fourth light source (also called a fourth LED) is provided at the second end of the second light guide 120b. The first ends of the first light guide 120a and the first ends of the second light guide 120b are located on the same side, and the second ends of the first light guide 120a and the second ends of the second light guide 120b are also located on the same side.

[0029] The light emitted by each light source 131, 132, 133 and 134 enters the light guides 120a and 120b through their respective ends, propagates along the light guides, and is reflected out of the light guides by the light guide teeth 123 of the light guides 120a and 120b. Then it passes through the diffuser lens 110 and is emitted from the light-emitting surface 113 of the diffuser lens.

[0030] The diffuser lens 110 is made of a diffuser material. Any one of the first LED, the second LED, the third LED, and the fourth LED can light up the entire diffuser lens 110. The superposition of two light guides can realize the light emission of the slender diffuser lens 110.

[0031] In one embodiment, the diffusion lens 110 is a long strip lens, and the light guides 120a and 120b are long strip light guides.

[0032] like Figure 6 As shown, the first light source 131 forms a first brightness curve line1 along the predetermined length extension direction of the light-emitting surface of the diffusion lens 110 based on the light guide teeth of the first light guide 120a. Figure 8 As shown, the third light source 133 forms a third brightness curve line3 based on the light guide teeth of the first light guide 120a along the predetermined length extension direction of the light-emitting surface of the diffusion lens 110. For example... Figure 7 As shown, the second light source 132 forms a second brightness curve based on the light guide teeth of the second light guide along the predetermined length extension direction of the light-emitting surface of the diffusion lens. For example... Figure 9 As shown, the fourth light source 134 forms a fourth brightness curve line4 based on the light guide teeth of the second light guide 120b along a predetermined length extension direction of the light-emitting surface of the diffuser lens 110. For example, the predetermined length extension direction can be... Figure 1 The light-emitting surface 113 of the diffuser lens 110 is oriented from left to right.

[0033] A predetermined visual effect can be achieved by controlling the brightness and / or color of each light source in each of several consecutive time periods. For example, by controlling the brightness and / or color of each light source in each of several consecutive time periods, the individual or superimposed presentation of each brightness curve (line 1-line 4) can be achieved, thereby enabling the movement of the highest brightness point and thus realizing a dynamic flowing effect of ambient lighting. In this paper, controlling the brightness of each light source includes not only controlling the brightness value of each light source when it is lit, but also controlling whether each light source is on or off.

[0034] The following uses f(x) n ) represents line n (n=1, 2, 3, 4), x n This represents the distance from left to right of the light-emitting surface 113 of the diffuser lens 110. Line 1 satisfies the brightness curve f(x1) = (x1 - b). 2 +c, where b represents the segmented value of the emission length, such as Figure 6-9 As shown, in one embodiment of the present invention, the light-emitting area of ​​the light-emitting surface of the diffuser lens 110, which has a total light-emitting length of about 700 mm, is divided into 30 segments. At this time, b=30, and c represents the brightness value of the light guide end. This value is related to the luminous flux of the LED and can be adjusted according to the actual brightness requirements. Since f(x3) and f(x1) are symmetrical about x=b / 2, f(b-x3)=f(x1).

[0035] The structure of f(x2) is relatively complex. To the left of x=b / 2, it is a quadratic function opening downwards; to the right of x=b / 2, it is a quadratic function opening upwards. Simultaneously, f(x2) and f(x4) are symmetrical, and f(x1) + f(x2) + f(x3) + f(x4) = A (where A is the brightness value when all LEDs are fully lit). Furthermore, the brightest point of line 2 is located at 1 / 3 of the total length, meaning its brightness is maximum at x=1 / 3b. Therefore, when x... 2 +d, where d is the maximum brightness of line2 when lit alone. When x > b / 2, f(x2) = e(xb). 2 Through functional calculation, we can obtain e = 4d / b 2 -1 / 9, since f(x4) and f(x2) are symmetric about x=b / 2, f(x4)=f(b-x2).

[0036] ​It should be noted that the above curve is only one embodiment, and similar curves can achieve similar technical effects. Specifically, a brightness curve that satisfies the following conditions can also achieve the purpose of this invention: the first brightness curve is a quadratic function curve with an upward opening, and the axis of symmetry of this function is close to the termination position (i.e., x=b) in the predetermined length extension direction of the light-emitting surface of the diffuser lens; that is, the distance of the axis of symmetry from the termination position (i.e., x=b) in the predetermined length extension direction of the light-emitting surface is greater than or equal to zero and less than or equal to b / 6. The first brightness curve and the third brightness curve are symmetrical along the midline in the length extension direction of the light-emitting surface of the diffuser lens.

[0037] The second brightness curve is a downward-opening quadratic function curve to the left of the center line. The axis of symmetry of this function is close to 1 / 3 of the predetermined length extension direction of the light-emitting surface of the diffuser lens (i.e., x=b / 3). That is, the distance between the axis of symmetry and 1 / 3 of the predetermined length extension direction of the light-emitting surface of the diffuser lens (i.e., x=b / 3) is greater than or equal to zero and less than or equal to b / 6.

[0038] The second brightness curve is a quadratic function curve opening upwards to the right of the center line. The axis of symmetry of this function terminates near the predetermined length extension direction of the light-emitting surface of the diffuser lens. That is, the distance between the axis of symmetry and the termination position (i.e., x=b) in the predetermined length extension direction of the light-emitting surface is greater than or equal to zero and less than or equal to b / 6. The second brightness curve and the fourth brightness curve are symmetrical along the center line in the length extension direction of the light-emitting surface of the diffuser lens.

[0039] exist Figure 6-9 In the diagram, the horizontal axis represents the distance from left to right of the light-emitting surface 113 of the diffuser lens 110, and the vertical axis represents the brightness value. Figure 6-9 It can be seen that when LED1 is lit, its highest brightness is located at x=1 (i.e., the starting position); when LED2 is lit, its highest brightness is located at x=12; when LED3 is lit, its highest brightness is located at x=30 (i.e., the ending position); and when LED4 is lit, its highest brightness is located at x=19. It is evident that the positions of the highest brightness points of each brightness curve are different along the length of the light-emitting surface of the diffuser lens 110, and they are generally evenly distributed along the length of the light-emitting surface of the diffuser lens 110. Preferably, the highest brightness points of each brightness curve are distributed at intervals along the length of the light-emitting surface of the diffuser lens. More preferably, the highest brightness points of each brightness curve are evenly distributed along the length of the light-emitting surface of the diffuser lens. More specifically, the distance between adjacent highest brightness points of each brightness curve is preferably close to 1 / 3 of the length of the light-emitting surface of the diffuser lens, that is, the distance between adjacent highest brightness points of each brightness curve is preferably 1 / 3 ± 1 / 7 of the length of the light-emitting surface of the diffuser lens.

[0040] In other words, such as Figure 6-9 As shown, the second brightness curve (line 2) and the fourth brightness curve (line 4) are symmetrical along the midline of the length extension direction of the light-emitting surface of the diffuser lens 110, and the first brightness curve (line 1) and the third brightness curve (line 3) are symmetrical along the midline of the length extension direction of the light-emitting surface of the diffuser lens 110. The highest point of the first brightness curve is near the starting position of the predetermined length extension direction of the light-emitting surface of the diffuser lens, and the brightness of the first brightness curve gradually decreases from the highest point of the first brightness curve to the ending position of the predetermined length extension direction. The highest point of the third brightness curve is near the ending position of the predetermined length extension direction of the light-emitting surface of the diffuser lens, and the brightness of the third brightness curve gradually decreases from the highest point of the third brightness curve to the starting position. The highest point of the second brightness curve is located at a first predetermined position between the starting position and the middle position along the predetermined length extension direction of the light-emitting surface of the diffuser lens. The brightness of the second brightness curve gradually decreases from its highest point to the starting position, and also gradually decreases from its highest point to the ending position. Similarly, the highest point of the fourth brightness curve is located at a second predetermined position between the ending position and the middle position along the predetermined length extension direction of the light-emitting surface of the diffuser lens. The brightness of the fourth brightness curve gradually decreases from its highest point to the starting position, and also gradually decreases from its highest point to the ending position. Preferably, the first predetermined position is closer to the middle position than the starting position, and the second predetermined position is closer to the middle position than the ending position.

[0041] Figure 10 This is a schematic diagram of the brightness curve formed when four LEDs are lit simultaneously. Figure 11 This is a schematic diagram of the brightness curves formed when the first LED and the second LED are lit simultaneously. Figure 12 This is a schematic diagram of the brightness curves formed when the second and fourth LEDs are lit simultaneously. Figure 13 This is a schematic diagram of the brightness curves formed when the third and fourth LEDs are lit simultaneously. When all four LEDs are lit, the four brightness curves overlap to form a horizontal straight line, resulting in a uniform light emission effect. When the first and second LEDs are lit, the highest brightness is located at x=7. When the second and fourth LEDs are lit, the highest brightness is located at x=15. When the third and fourth LEDs are lit, the highest brightness is located at x=24.

[0042] In this way, by lighting one LED or multiple LEDs simultaneously and adjusting the brightness of each LED in each of several consecutive time periods, the highest brightness can be continuously moved between positions x=1 and x=30, thus achieving a dynamic movement effect across the entire luminous area. For example, lighting the first LED first places the highest brightness at x=1; lighting the first LED and the second LED together places the highest brightness at x=7; lighting the second LED places the highest brightness at x=11; lighting the second and fourth LEDs places the highest brightness at x=15; lighting the fourth LED places the highest brightness at x=20; lighting the third and fourth LEDs places the highest brightness at x=24; and finally lighting the third LED places the highest brightness at x=30. This allows the highest brightness to move from x=1 to x=30. Conversely, the highest brightness can move from x=30 back to x=1. It should be noted that the above only describes the brightness of each LED at four time points. In actual practice, a smooth dynamic change effect can be achieved by making subtle and continuous adjustments to the brightness of each LED.

[0043] Of course, other predetermined dynamic visual effects can also be achieved by controlling the brightness and / or color of each of the various light sources.

[0044] Specifically, by superimposing different brightness curves, the following functions can be achieved: 1) Dynamic flowing water effect: By controlling the brightness changes of the four LEDs, the bright spots can move freely throughout the luminous area, thus achieving a dynamic flowing water effect; 2) Rainbow flowing water effect: By controlling the switching of red, green, and blue colors among the four LEDs, a colorful dynamic flowing water effect can be achieved; 3) Music rhythm effect: By controlling the brightness and color changes of the second and fourth LEDs, a musical rhythm effect can be achieved; 4) Charging indicator effect: When the first LED is lit and flashing, it indicates that the battery is charged to 25%; when the first LED and the second LED are lit and flashing, it indicates that the battery is charged to 50%; when the first LED, the second LED, and the fourth LED are lit and flashing, it indicates that the battery is charged to 75%; when all LEDs are lit, the battery is fully charged; 5) Turn signal effect: By controlling the brightness changes of the yellow light of the first, second, fourth, and third LEDs, a turn signal effect can be achieved.

[0045] In one embodiment, the area and / or density of the light guide teeth on the first light guide 120a can be set to make the first light guide 120a present a desired first brightness curve line1 and a desired third brightness curve line3; the area and / or density of the light guide teeth 123 on the second light guide 120b can be set to make the second light guide 120b present a desired second brightness curve line2 and a desired fourth brightness curve line4.

[0046] In one embodiment, such as Figure 4 As shown, the light guide teeth 123 can be evenly spaced on one side of the light guide 120. By adjusting the tooth width D2 of the light guide teeth 123, the area of ​​the light guide teeth can be adjusted, thereby adjusting the position of the highest bright spot and the curve direction of the brightness curve formed by the light guide 120. In another embodiment, as... Figure 4 As shown, the density of the light guide teeth on the light guide 120 along the length of the light-emitting surface of the diffuser lens 110 can be adjusted by adjusting the tooth spacing D1 of adjacent light guide teeth 123. That is, some positions can be set with a smaller tooth spacing D1 (high density) and some positions can be set with a larger tooth spacing D1 (low density). In this way, the position of the highest bright spot and the direction of the curve of the brightness curve formed by the light guide 120 can also be adjusted.

[0047] In one example, the tooth width D2 of the first light guide can be designed to be wider than the tooth width D2 of the light guide teeth on both sides of the first light guide, while the tooth width D2 of the light guide teeth in the middle of the first light guide is smaller and the two light guide teeth are arranged at equal intervals. The second light guide can be designed to have the tooth width D2 of the light guide teeth on both sides of the light guide and the tooth width D2 of the light guide teeth in the middle of the light guide arranged at equal intervals. This allows the first light guide and the second light guide to present the brightness curve line1-line4.

[0048] In another example, all the light guide teeth on the first light guide have the same tooth width D2, but the tooth spacing D1 of the light guide teeth at both ends is small and the tooth spacing D1 of the light guide teeth in the middle is large. All the light guide teeth on the second light guide have the same tooth width D2, but the tooth spacing D1 of the light guide teeth at both ends is large and the tooth spacing D1 of the light guide teeth in the middle is small. Similarly, the first light guide and the second light guide can present the brightness curve line1-line4 effect.

[0049] In another example, the light guide teeth 123 of the first light guide can be evenly spaced on one side of the light guide 120, and the tooth width D2 of the light guide teeth 123 is also consistent. As light attenuates during propagation, the first light guide exhibits brightness curves line1 and line3. The light guide teeth 123 of the second light guide can also be evenly spaced on one side of the light guide 120, but the tooth width D2 of the light guide teeth 123 is non-uniform. The tooth width D2 of the second light guide is designed as a quadratic function curve that is symmetrical about the center of the light-emitting area of ​​the entire light guide. The tooth width of the light guide teeth near the two ends of the light guide is the smallest, and the tooth width of the light guide teeth near the center of the light-emitting area of ​​the entire light guide is the largest. This allows the second light guide to exhibit brightness curves line2 and line4.

[0050] In another example, the light guide teeth 123 of the first light guide can be evenly spaced on one side of the light guide 120, and the tooth width D2 of the light guide teeth 123 is also consistent; the distribution density of the light guide teeth 123 of the second light guide on one side of the light guide 120 can be different, with the light guide teeth near the two ends of the light guide having the smallest density and the light guide teeth near the middle of the light-emitting area of ​​the entire light guide having the largest density, so that the second light guide can present brightness curves line2 and line4.

[0051] It should be noted that the area and density of the optical guide teeth in this invention are not limited to the above-described embodiments. The focus is on achieving the brightness curves shown in lines 1-4 of the diagram. Based on the disclosed information for lines 1-4, those skilled in the art are capable of achieving the brightness curves of lines 1-4 by adjusting the area / density of the optical guide teeth. In other words, there are many different designs for the optical guide teeth, and methods for adjustment are already available on the market; therefore, this invention does not impose any special requirements.

[0052] In any case, the area or density of the light guide teeth of at least one light guide is not uniform along the length of the light-emitting surface of the diffusion lens 110.

[0053] In one example, the length of the light-emitting surface of the diffuser lens is greater than or equal to 200 mm and less than or equal to 1500 mm, and the distance between adjacent highest bright spots of each brightness curve is greater than or equal to 50 mm and less than or equal to 500 mm.

[0054] Preferably, the length of the light-emitting surface of the diffusion lens is greater than or equal to 600 mm and less than or equal to 1200 mm, and the distance between adjacent highest bright spots of each brightness curve is greater than or equal to 100 mm and less than or equal to 400 mm.

[0055] In one example, the tooth pitch D1 can be 3mm, and the cross-sectional area of ​​the ambient light system at the light-emitting position is less than or equal to 15mm*15mm.

[0056] In the above embodiments of the present invention, a dynamic flowing light effect can be achieved using only 4 LEDs and 2 light guides. Compared to existing dynamic ambient lights that use 50-80 LEDs, this significantly reduces the number of LEDs and effectively lowers costs. Furthermore, the overall solution in the above embodiments of the present invention requires less space, approximately only a 15mm*15mm cross-sectional area, while existing dynamic ambient lights require 2-3 times more.

[0057] like Figure 1-2As shown, the ambient lighting system also includes a housing 150 and a bracket 140 assembled with the housing 150. A receiving cavity 160 is formed between the bracket 140 and the housing 150. The diffuser lens 110 is fixed to the housing 150, and the light-emitting surface 113 of the diffuser lens 110 is exposed outside the housing. The first light guide 120a and the second light guide 120b are received within the receiving cavity 160.

[0058] In one embodiment, the housing 150 includes a light-emitting port 151 disposed on one side and a retaining groove 152 communicating with the light-emitting port 151. The diffuser lens 110 includes a body portion 111 and a protrusion 112. The body portion 111 of the diffuser lens is retained in the retaining groove 152 of the housing 150, the protrusion 112 of the diffuser lens 110 is retained in the light-emitting port 151, and the top surface of the protrusion 112 is exposed outside the housing as the light-emitting surface 113 of the diffuser lens.

[0059] More specifically, the bracket 140 includes a bracket body 141 parallel to the diffuser lens 110 and bracket feet 142 extending from both ends of the bracket body 141. Each light guide includes a light guide body 121 parallel to the diffuser lens 110 and light guide legs 122 extending from both ends of the light guide body 121. The light guide teeth 123 are disposed on the light guide body 121, and each light guide leg 122 is received in a receiving groove of the bracket foot 142.

[0060] In another alternative embodiment, the diffuser lens may consist of only a body portion, with one side of the body portion exposed outside the housing 150 as the light-emitting surface. In other embodiments, the diffuser lens may have other structures, and the structure of the housing 150 for holding the diffuser lens may also change accordingly, as long as the bracket and housing can fix the diffuser lens relative to the first light guide 120a and the second light guide 120b.

[0061] In another alternative embodiment, the bracket 140 may only have the bracket body 141 without the bracket feet 142. Similarly, the light guide may only have the light guide body 121 without the light guide legs 122.

[0062] In one embodiment, the ambient lighting system further includes a first PCB (Printed Circuit Board) and a second PCB. The first LED 131 and the second LED 132 can be mounted on the first PCB, and the third LED 133 and the fourth LED 134 can be mounted on the second PCB. Thus, the first and second PCBs occupy only a small amount of space.

[0063] exist Figure 2 In the given embodiment, the first light guide 120a and the second light guide 120b are arranged side by side on one side of the diffuser lens 110, that is, the direction of the light guide queue is parallel to the diffuser lens, and the light reflected from the light guide teeth 123 of each light guide is directly facing the diffuser lens 110, so that the light reflected from the light guide teeth 123 can directly enter the diffuser lens 110.

[0064] In another embodiment, such as Figure 3 As shown, the first light guide 120a and the second light guide 120b are arranged in a row, that is, the direction of the light guide row is perpendicular to the diffuser lens. The light reflected from the light guide teeth 123 of the first light guide 120a directly enters the diffuser lens 110, and the light reflected from the light guide teeth 123 of the second light guide 120b first enters the first light guide 120a. In this way, the light reflected from the light guide teeth 123 of the second light guide can enter the diffuser lens 110 through the first light guide 120a. In other embodiments, the first light guide 120a and the second light guide 120b can also be arranged alternately or in other ways, as long as the light reflected from the light guide teeth 123 of the first light guide 120a and the second light guide 120b can enter the diffuser lens 110.

[0065] exist Figure 2 In the illustrated embodiment, the cross-section of the light guide is circular. Figure 3 In the illustrated embodiment, the cross-section of the light guide is rectangular. In other embodiments, the cross-section of the light guide can be polygonal or other shapes.

[0066] In the foregoing embodiment, the ambient lighting system has two light guides and four light sources: a first light guide 120a and a second light guide 120b, and light sources 131, 132, 133, and 134. In an alternative embodiment, a third light guide, a fourth light guide, or more light guides may also be included. At least one end of each light guide may be provided with a light source, which forms another brightness curve based on the light guide teeth of the light guide along a predetermined length extension direction of the light-emitting surface of the diffuser lens 110. Different dynamic visual effects can be achieved by superimposing or individually presenting the brightness curves of different light guides.

[0067] In another alternative embodiment, the first light guide 120a or the second light guide 120b has only one light source at one end, which can be achieved by simply adding a sufficient number of light guides and corresponding light sources. Figure 1 The ambient lighting system shown achieves the same effect. Of course, to minimize the number of light guides, it is preferable to place a light source at each end of each light guide.

[0068] In this invention, "multiple" refers to two or more.

[0069] It should be noted that in this document, the terms 'upper,' 'lower,' 'left,' 'right,' 'inner,' 'outer,' 'top,' and 'bottom,' indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In practical applications, these orientational relationships may vary depending on the actual use, installation, or viewing angle of the product, and therefore should not be construed as limiting the specific scope of protection of the invention. Furthermore, ordinal numbers such as 'first' and 'second' appearing in the document are only used to distinguish different components and do not indicate any order, importance, or hierarchy.

[0070] It should be noted that any modifications made by those skilled in the art to the specific embodiments of the present invention do not depart from the scope of the claims. Accordingly, the scope of the claims is not limited to the foregoing specific embodiments.

Claims

1. An ambient lighting system, characterized in that, It includes: Diffusing lens; Multiple light guides are disposed on one side of the diffusion lens, wherein each light guide has multiple spaced-apart light guide teeth on the side away from the diffusion lens; and Multiple light sources are provided, wherein at least one end of each of the multiple light guides is provided with one of the multiple light sources, and the light emitted by the light source enters the light guide through the corresponding end of the light guide and propagates along the light guide within the light guide, and is reflected out by the light guide teeth of the light guide, and then exits from the light-emitting surface of the diffusion lens after passing through the diffusion lens.

2. The ambient lighting system according to claim 1, characterized in that, It includes: shell; The bracket assembled with the outer shell, The bracket and the housing form a receiving cavity, the diffuser lens is fixed to the housing and the light-emitting surface of the diffuser lens is exposed outside the housing, and the light guide is housed in the receiving cavity.

3. The ambient lighting system according to claim 2, characterized in that, The housing includes a light-emitting port disposed on one side and a retaining groove communicating with the light-emitting port. The diffusion lens includes a body and a protrusion. The main body of the diffusion lens is fixed in the retaining groove of the housing, the protrusion of the diffusion lens is fixed in the light outlet, and the top surface of the protrusion serves as the light emitting surface of the diffusion lens and is exposed outside the housing.

4. The ambient lighting system according to claim 1, characterized in that, The diffusion lens is a long strip lens, and the light guide is a long strip light guide; The light guides are arranged in a row on one side of the diffuser lens; or... The light guides are disposed on one side of the diffusion lens and arranged in a row.

5. The ambient lighting system according to claim 1, characterized in that, The portion of each of the plurality of light guides with light guide teeth is arranged parallel to the light-emitting surface of the diffusion lens.

6. The ambient lighting system according to claim 1, characterized in that, The area or density of the optical guide teeth of at least one of the plurality of optical guides is not uniform along the length extension direction of the light-emitting surface of the diffusion lens. A predetermined visual effect is achieved by controlling the brightness and / or color of each of the various light sources in each of the multiple consecutive time periods, wherein controlling the brightness of each light source includes controlling whether each light source is turned on or off.

7. The ambient lighting system according to claim 1, characterized in that, The bracket includes a main body parallel to the diffuser lens and bracket feet extending from both ends of the main body. Each light guide includes a light guide body portion parallel to the diffusion lens and light guide legs extending from both ends of the light guide body portion. The optical guide teeth are disposed on the optical guide body of the optical guide, and the optical guide legs of each optical guide are received in the receiving groove of the bracket foot. Each light source consists of one or a group of LEDs.

8. The ambient lighting system according to claim 1, characterized in that, The optical guide teeth can be rectangular, circular, or polygonal in shape. The cross-sectional shape of the light guide is circular, rectangular, or polygonal.

9. The ambient lighting system according to any one of claims 1-8, characterized in that, The plurality of light guides includes a first light guide and a second light guide, wherein the first light guide has a plurality of spaced-apart light guide teeth on the side away from the diffusion lens, and the second light guide has a plurality of spaced-apart light guide teeth on the side away from the diffusion lens. A first light source is provided at the first end of the first light guide, and a third light source is provided at the second end of the first light guide. A second light source is provided at the first end of the second light guide, and a fourth light source is provided at the second end of the second light guide. The first end of the first optical guide and the first end of the second optical guide are located on the same side, and the second end of the first optical guide and the second end of the second optical guide are located on the same side.

10. The ambient lighting system according to claim 9, characterized in that, A first light source forms a first brightness curve along a predetermined length of the light-emitting surface of the diffuser lens based on the optical guide teeth of the first optical guide, and a third light source forms a third brightness curve along the predetermined length of the light-emitting surface of the diffuser lens based on the optical guide teeth of the first optical guide. The second light source forms a second brightness curve along the predetermined length extension direction of the light-emitting surface of the diffuser lens based on the optical guide teeth of the second light guide, and the fourth light source forms a fourth brightness curve along the predetermined length extension direction of the light-emitting surface of the diffuser lens based on the optical guide teeth of the second light guide. The position of the highest bright spot in each brightness curve is different along the length of the light-emitting surface of the diffuser lens. A predetermined visual effect is achieved by controlling the brightness and / or color of each of the various light sources in each of the multiple consecutive time periods, wherein controlling the brightness of each light source includes controlling whether each light source is turned on or off.

11. The ambient lighting system according to claim 10, characterized in that, The second and fourth brightness curves are symmetrical along the midline of the length extension direction of the light-emitting surface of the diffuser lens. The first brightness curve and the third brightness curve are symmetrical along the midline of the length extension direction of the light-emitting surface of the diffuser lens. The distribution of the highest brightness intervals of each brightness curve extends along the length of the light-emitting surface of the diffuser lens.

12. The ambient lighting system according to claim 10, characterized in that, The highest point of the first brightness curve is close to the starting position of the light-emitting surface of the diffuser lens along the predetermined length extension direction. From the highest point of the first brightness curve to the ending position along the predetermined length extension direction, the brightness of the first brightness curve gradually decreases. The highest point of the third brightness curve is near the end position of the predetermined length extension direction of the light-emitting surface of the diffuser lens. From the highest point of the third brightness curve to the starting position, the brightness of the third brightness curve gradually decreases. The highest point of the second brightness curve is located at a first predetermined position between the starting position and the middle position in the predetermined length extension direction of the light-emitting surface of the diffuser lens. The brightness of the second brightness curve gradually decreases from its highest point to the starting position, and the brightness of the second brightness curve gradually decreases from its highest point to the ending position. The highest point of the fourth brightness curve is located at a second predetermined position between the end position and the middle position in the predetermined length extension direction of the light-emitting surface of the diffuser lens. The brightness of the fourth brightness curve gradually decreases from its highest point to the starting position.

13. The ambient lighting system according to claim 12, characterized in that, The first predetermined position is closer to the intermediate position than the starting position. The second predetermined position is closer to the intermediate position than the termination position.

14. The ambient lighting system according to claim 11, characterized in that, The first brightness curve is a quadratic function curve with the opening facing upwards, and the axis of symmetry of the function is close to the termination position in the predetermined length extension direction of the light-emitting surface of the diffuser lens. The second brightness curve is a downward-opening quadratic function curve on one side of the center line, and the axis of symmetry of the function is located at 1 / 3 of the distance along the predetermined length extension direction of the light-emitting surface of the diffuser lens. The second brightness curve is a quadratic function curve opening upward on the other side of the center line, and the axis of symmetry of the function is close to the termination position in the predetermined length extension direction of the light-emitting surface of the diffuser lens.

15. The ambient lighting system according to claim 10, characterized in that, The distance between adjacent highest bright spots in each brightness curve is approximately 1 / 3 of the length of the light-emitting surface of the diffuser lens.

16. The ambient lighting system according to claim 10, characterized in that, By setting the area and / or density of the optical guide teeth on the first optical guide, the first optical guide can present a desired first brightness curve and a desired third brightness curve. By setting the area and / or density of the light guide teeth on the second light guide, the second light guide can present the desired second brightness curve and the desired fourth brightness curve.

17. The ambient lighting system according to claim 9, characterized in that, It also includes: First PCB board and second PCB board The first and second light sources are mounted on the first PCB board. The third and fourth light sources are mounted on the second PCB board.

18. The ambient lighting system according to claim 10, characterized in that, The length of the light-emitting surface of the diffusion lens is 200mm-1500mm; The distance between adjacent highest bright spots in each brightness curve is 50mm-500mm; The cross-sectional area of ​​the ambient lighting system at the light-emitting position is less than or equal to 15mm*15mm.

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