Dual-purpose light guide structure

Abstract

The application discloses a light guide structure with one light source and two light paths, which comprises a light guide support, a first light guide part arranged in the light guide support, the first light guide part comprising a light inlet part, a first light guide branch and a second light guide branch branched and extended from the light inlet part, the light inlet part corresponding to the position of a light emitting unit, the light guide support being provided with a first light guide arm and a second light guide arm corresponding to the first light guide branch and the second light guide branch respectively, and the light guide support being further provided with a light blocking part on the light outlet side, the light blocking part being configured to guide the light emitted by the light emitting unit through the light inlet part and then propagate along the first light guide branch and the second light guide branch to form a first light path and a second light path, and the first light path and the second light path being emitted from the first light guide arm and the second light guide arm respectively. The application has the advantages of compact structure, realization of two independent light paths by using a single light emitting unit, and effective improvement of the light effect diversity.

Description

Technical Field

[0001] This invention relates to the field of optical light guiding technology, and in particular to a light guiding structure that can be used for both light and light transmission. Background Technology

[0002] With the development of automotive intelligence and personalization, interior ambient lighting has become an important element in enhancing the driving experience and the quality of the vehicle interior. To achieve a surround, multi-zone immersive lighting effect, existing solutions often require designing two independent light sources and light guide systems, each corresponding to different light emission positions. This approach results in a significant increase in the number of parts, high costs, and makes it difficult to lay out multiple light guide systems in the narrow interior space of car doors or dashboards. The complex structure also encroaches on the assembly space of other functional components.

[0003] Furthermore, even if some solutions use a single light guide to simplify the structure, their light output method is usually relatively simple. The light can only be output along a single path, and it is impossible to form two independent and non-interfering light output effects under the drive of a single light-emitting unit. This uniformity in light effect performance makes it difficult to meet users' needs for diverse lighting effects. For example, it is impossible to achieve ambient lighting in different areas at the same time, which limits the sense of layering in interior lighting design. Summary of the Invention

[0004] The purpose of this invention is to provide a light guide structure that can be used for two purposes, with a compact structure, the ability to achieve two independent light outputs using a single light-emitting unit, and the ability to effectively improve the diversity of lighting effects.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a light guide structure for dual-purpose light transmission, comprising a light guide bracket, a circuit board disposed at one end of the light guide bracket, a light-emitting unit disposed on the circuit board, a first light guide component disposed within the light guide bracket, the first light guide component comprising an incident light portion, and a first light guide branch and a second light guide branch extending from the incident light portion, the incident light portion corresponding to the position of the light-emitting unit, a first light guide arm and a second light guide arm respectively disposed on the light guide bracket corresponding to the first light guide branch and the second light guide branch, a light-blocking component disposed on the light-emitting side of the light guide bracket, the light-blocking component being configured to guide the light emitted by the light-emitting unit through the incident light portion and propagate along the first light guide branch and the second light guide branch respectively to form a first light path and a second light path, and the first light path and the second light path being emitted from the first light guide arm and the second light guide arm respectively.

[0006] By adopting the above technical solution, the combination of a single light-emitting unit and a branched first light guide and light-blocking component achieves "one light for two uses", that is, one light source illuminates two different light-emitting surfaces at the same time, eliminating the need for a light source and supporting circuit, reducing costs and size, and ensuring that the two light rays do not interfere with each other and the light emission boundary is clear.

[0007] A further configuration of the present invention is as follows: the light-blocking member includes a top plate and a first baffle connected to each other. The top plate is located above the light guide bracket. The first baffle extends between the first light guide arm and the second light guide arm, and the projections of the first light guide arm and the second light guide arm on the first baffle both fall within the boundary of the first baffle. The top plate and the first baffle are both made of opaque material, and together they limit the light of the first light guide branch to be emitted from the side of the first light guide arm away from the first baffle. A through light-emitting groove is provided at the end of the top plate. The light-emitting groove is located on the side of the first baffle close to the second light guide arm. The top plate and the first baffle also together limit the light of the second light guide branch to be emitted from the side of the second light guide arm toward the first baffle and emitted outward through the light-emitting groove.

[0008] By adopting the above technical solution, the two light paths are completely separated in space and direction by using the light-blocking component. The first light path is side light output, and the second light path is top light output. The light output directions are completely different. Moreover, the light-blocking component itself has a simple structure and is easy to assemble and position. The design of complete projection coverage ensures no light leakage.

[0009] A further configuration of the present invention is that the light-blocking member further includes a second baffle connected to the top plate, the second baffle extending between the second light guide arm and the first baffle, and the projection surface of the second baffle falling within the boundary of the second light guide arm.

[0010] By adopting the above technical solution, the added second baffle plays the role of optical "choke" and light uniformity. It narrows the exit aperture of the second light path and extends the light path mixing distance, making the light emitted from the light outlet slot more uniform in brightness and eliminating the local bright spots caused by direct illumination from the LED point light source.

[0011] A further configuration of the present invention is as follows: the light guide structure further includes a second light guide member, and a receiving cavity for accommodating the second light guide member is formed between the top plate, the first baffle and the second light guide arm. The second light guide member has an inclined light guide surface, which is inclined toward the direction close to the second light guide arm, so as to guide the light from the second light guide branch to the light outlet groove.

[0012] By adopting the above technical solution and adding a second light guide with an inclined light guide surface, the light that originally had a large divergence angle and propagated deep into the second light guide arm can be efficiently "folded" and converged into the light outlet slot, which improves the light utilization rate of the second optical path and the surface brightness at the light outlet slot, while also allowing for precise control of the final light output direction.

[0013] A further feature of the present invention is that a plurality of arc-shaped ribs are spaced apart on the light guide surface, and the extending direction of the arc-shaped ribs is consistent with the emission direction of the light guided by the light guide surface.

[0014] By adopting the above technical solution, the arc-shaped ribs not only increase the softness of the emitted light as an optical microstructure, but also create a dynamic arc-shaped light effect with a sense of depth that flows along the light emission direction, thereby improving the visual quality of the product's light emission area.

[0015] A further feature of the present invention is that a light-transmitting plate is covered at the light-emitting groove, the light-transmitting plate has an annular groove in its circumference, and the top plate is embedded in the annular groove and fixedly connected to the light-transmitting plate.

[0016] By adopting the above technical solution, the optical components inside the light output slot can be effectively protected from external moisture and dust corrosion, extending their service life, and stable light output can be achieved.

[0017] A further feature of the present invention is that it also includes a second light guide, wherein a receiving cavity for accommodating the second light guide is formed between the top plate, the first baffle and the second light guide arm, and a crystal wall is provided on the end face of the light-transmitting plate near the receiving cavity.

[0018] By adopting the above technical solution, and by setting a crystal wall on the inner surface of the light-transmitting plate, which works in conjunction with the second light guide in the accommodating cavity, ordinary uniform surface light is transformed into a multi-point sparkling crystal light effect with a diamond-like texture, thereby enhancing the luxurious and exquisite appearance of the product.

[0019] A further feature of the present invention is that a gap is provided between the first light guide arm and the top plate, and a plurality of light-transmitting holes are spaced apart on the surface of the first light guide arm facing the top plate, and part of the light from the first light guide branch passes through the gap and is emitted in a direction away from the first baffle.

[0020] By adopting the above technical solution, the original continuous side light-emitting surface is transformed into an optical pattern composed of multiple separate bright spots through the cooperation of gaps and intermittent light-transmitting holes, thus realizing a dot matrix side light-emitting effect. Moreover, by utilizing the light transmission of the first light-guiding branch, no additional LEDs are required.

[0021] A further configuration of the present invention is as follows: two circuit boards are provided, each of which is provided with a light-emitting unit and is respectively located at both ends of the light guide bracket; the first light guide has two light-incident portions, which are respectively aligned with the two light-emitting units; both ends of the first light guide branch and both ends of the second light guide branch are respectively connected to the two light-incident portions; both sides of the two circuit boards are covered with mounting boxes, which protrude towards the light-incident portions at the positions corresponding to the light-emitting units and form extension portions, with the two light-incident portions extending into the corresponding extension portions.

[0022] By adopting the above technical solution, the symmetrical design of dual-end light intake solves the problem of brightness attenuation over long distances, making the brightness of the first and second optical paths highly uniform throughout their entire length; the mounting box with the extension not only protects the circuit board but also acts as a focusing coupler, optimizing light energy utilization and preventing light leakage at the ends.

[0023] A further feature of the present invention is that it includes a support base located below the light guide bracket, the support base supporting the light guide bracket, the first light guide element, and the light blocking element; a claw is fixedly connected to the support base, the claw has a locking hole facing the light blocking element, the width of the locking hole gradually decreases from its opening end to its interior, and a locking block is provided at one end of the light blocking element near the support base, the locking block being inserted into the locking hole and engaging with it.

[0024] By adopting the above technical solution, the light-blocking component and the support base can be quickly and stably assembled, with high assembly efficiency and reliable connection.

[0025] In summary, the present invention has the following beneficial effects: 1. By combining a single light-emitting unit with a branched first light guide and a light-blocking component, "one light for two uses" is achieved, that is, one light source illuminates two different light-emitting surfaces at the same time, eliminating the need for a light source and its supporting circuit, reducing costs and shrinking the size, and ensuring that the two light rays do not interfere with each other and that the light emission boundary is clear.

[0026] 2. The light-blocking component achieves complete separation of the two light paths in space and direction. The first light path is side-emitting, and the second light path is top-emitting, with completely different light directions. Moreover, the light-blocking component itself has a simple structure and is easy to assemble and position. The design of complete projection coverage ensures no light leakage.

[0027] 3. The added second baffle acts as an optical "choke" and light homogenizer. It narrows the exit aperture of the second light path and extends the light path mixing distance, making the light emitted from the light outlet slot more uniform in brightness and eliminating local bright spots caused by direct illumination from the LED point light source.

[0028] 4. By adding a second light guide with an inclined light guide surface, the light that originally had a large divergence angle and propagated deep into the second light guide arm can be efficiently "folded" and converged into the light outlet slot, which improves the light utilization rate of the second light path and the surface brightness at the light outlet slot, while also allowing for precise control of the final light output direction.

[0029] 5. The symmetrical design with dual-end light intake solves the problem of brightness attenuation over long distances, ensuring high uniformity of brightness in both the first and second optical paths over their entire length; the mounting box with extensions protects the circuit board and acts as a focusing coupler, optimizing light energy utilization and preventing light leakage at the ends. Attached Figure Description

[0030] Figure 1 This is a perspective view of the present invention.

[0031] Figure 2 This is a perspective view of the invention from another angle.

[0032] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle.

[0033] Figure 4 This is a cross-sectional view of the present invention.

[0034] Figure 5 This is an exploded view of the present invention.

[0035] Figure 6 This is the present invention. Figure 5 Enlarged view of point B in the middle.

[0036] Figure 7 This is a schematic diagram of the second light guide component of the present invention.

[0037] Figure 8 This is a schematic diagram showing the location of the present invention installed in the interior of a car.

[0038] Figure 9 This is a path diagram of the first and second optical paths of the present invention.

[0039] In the diagram: 1. Light guide bracket; 11. First light guide arm; 111. Light-transmitting hole; 12. Second light guide arm; 2. Circuit board; 21. Light-emitting unit; 3. First light guide component; 31. Light-inlet section; 32. First light guide branch; 33. Second light guide branch; 4. Light-blocking component; 41. Top plate; 411. Light-exit groove; 42. First baffle; 43. Second baffle; 44. Locking block; 5. Second light guide component; 50. Receiving cavity; 51. Light guide surface; 511. Arc-shaped rib; 6. Light-transmitting plate; 61. Annular groove; 62. Crystal wall; 7. Gap; 8. Mounting box; 81. Extension; 9. Support base; 91. Claw; 911. Locking hole. Detailed Implementation

[0040] The invention will now be further described with reference to the accompanying drawings.

[0041] A light guide structure that can be used for both light and optical purposes, such as Figure 1-9 As shown, the light guide bracket 1 is made of a transparent material, such as transparent polycarbonate (PC). A circuit board 2 is fixedly mounted at one end of the light guide bracket 1, and a light-emitting unit 21, which is an LED, is soldered onto the circuit board 2. A first light guide element 3 is disposed within the light guide bracket 1. The first light guide element 3 is integrally formed from a transparent material, such as transparent polycarbonate (PC), and includes a light-incident portion 31 facing the light-emitting unit 21, through which light enters. After the light-incident portion 31, the first light guide element 3 branches into a first light-guiding branch 32 and a second light-guiding branch 33, forming an optical "Y"-shaped branch structure. The light guide bracket 1 corresponds to the first light-guiding branch. A first light guide arm 11 is provided at position 32, and a second light guide arm 12 is provided at the position corresponding to the second light guide branch 33, so that the first light guide branch 32 and the second light guide branch 33 respectively cover the first light guide arm 11 and the second light guide arm 12. A light-blocking component 4 is also fixed on the light guide bracket 1, which is made of black opaque resin, such as black ABS. The light-blocking component 4 is configured to forcibly separate the light entering from the light entrance 31, so that the light entering the first light guide branch 32 can only be emitted from the first light guide arm 11 along the first light path, and the light entering the second light guide branch 33 can only be emitted from the second light guide arm 12 along the second light path, and the two light paths do not interfere with each other. Through the cooperation of a single light-emitting unit 21 with the branched first light guide component 3 and the light-blocking component 4, "one light for two uses" is achieved, that is, one light source illuminates two different light-emitting surfaces at the same time, saving a light source and supporting circuit, reducing cost, shrinking size, and ensuring that the two light paths do not interfere with each other, with clear light emission boundaries.

[0042] Preferably, the light-blocking component 4 includes a top plate 41 and a first baffle 42 connected vertically. The top plate 41 is located above the light guide bracket 1. The first baffle 42 extends between the first light guide arm 11 and the second light guide arm 12, and the projections of the first light guide arm 11 and the second light guide arm 12 onto the first baffle 42 both fall within the boundary of the first baffle 42, i.e., the width and height of the first baffle 42 completely isolate the exit end faces of the first light guide arm 11 and the second light guide arm 12 in space. Both the top plate 41 and the first baffle 42 are made of opaque material, such as black ABS. The light from the first light guide branch 32 is restricted from passing through the first baffle 42 and is forced to exit from the outer side of the first light guide arm 11 facing away from the first baffle 42, forming a side-emitting first light path. Simultaneously, a vertically penetrating light-emitting slot 411 is provided at the end of the top plate 41. The top plate 41 and the first baffle 42 together restrict the light from the second light guide branch 33, limiting it to exiting from the side of the second light guide arm 12 towards the first baffle 42 and entering the light-emitting slot 411 of the top plate 41. Finally, the light is emitted upwards through the light-emitting slot 411, forming a top-emitting second light path. The light-blocking component 4 achieves complete separation of the two light paths in space and direction. The first light path is side-emitting, and the second light path is top-emitting, with completely different emission directions. Furthermore, the light-blocking component 4 itself has a simple structure, is easy to assemble and position, and the design of complete projection coverage ensures no light leakage.

[0043] Preferably, the light-blocking component 4 further includes a second baffle 43 perpendicularly connected to the top plate 41. The second baffle 43 extends between the second light guide arm 12 and the first baffle 42. The projection surface of the second baffle 43 falls within the boundary of the second light guide arm 12. That is, the first baffle 42, the second baffle 43, and the inner wall of the second light guide arm 12 together form a narrow channel with a "U" shaped cross-section. The light from the second light guide branch 33 first enters the second light guide arm 12 and is then confined within this channel to propagate. Due to the obstruction of the second baffle 43, the light cannot be directly emitted from the entire area at the top of the second light guide arm 12, but is forced to propagate forward along the channel. During the transmission process, the light is continuously mixed and homogenized, and finally emitted from the defined area at the end of the channel to the light outlet groove 411. The added second baffle 43 serves as an optical "choke" and light homogenizer. It narrows the exit aperture of the second light path and extends the light path mixing distance, making the light emitted from the light outlet slot 411 more uniform in brightness and eliminating local bright spots caused by direct illumination from the LED point light source.

[0044] Preferably, the light guide structure further includes a second light guide 5, which is made of a transparent light guide material, such as transparent PC. A receiving cavity 50 for accommodating the second light guide 5 is formed between the top plate 41, the first baffle 42, and the second light guide arm 12. The second light guide 5 has an inclined light guide surface 51, which is inclined towards the second light guide arm 12. When light from the second light guide branch 33 enters the receiving cavity 50, it is projected onto the inclined light guide surface 51, undergoing total internal reflection or refraction, thereby changing the propagation direction and being concentrated and controllably guided to the light exit groove 411 on the top plate 41. By adding a second light guide 5 with an inclined light guide surface 51, light that originally had a large divergence angle and propagated deep into the second light guide arm 12 can be efficiently "folded" and converged to the light exit groove 411, improving the light utilization rate of the second optical path and the surface brightness at the light exit groove 411, while also allowing precise control of the final light exit direction.

[0045] Preferably, the light guide surface 51 is provided with a plurality of arc-shaped ribs 511 at intervals, and the extension direction of the arc-shaped ribs 511 is consistent with the emission direction of the light guided by the light guide surface 51. When the light propagates in the light guide surface 51 and comes into contact with the arc-shaped ribs 511, the arc-shaped ribs 511 will disrupt the total internal reflection condition, causing some light to be diffusely reflected or refracted from the surface of the arc-shaped ribs 511. Since the ribs extend in an arc shape along the light emission direction and are arranged at intervals, they will form a series of arc-shaped bright lines arranged sequentially and with gradually changing brightness on the light emission groove 411. The arc-shaped ribs 511 not only increase the softness of the emitted light as an optical microstructure, but also create a dynamic arc-shaped light effect with a sense of depth flowing along the light emission direction, improving the visual quality of the light emission area of ​​the product.

[0046] Preferably, a light-transmitting plate 6 is provided to cover the light-emitting slot 411. The light-transmitting plate 6 can be made of wear-resistant tempered glass or high-transmittance PC sheet. The light-transmitting plate 6 has an annular groove 61 circumferentially formed. During assembly, the edge of the top plate 41 is directly pressed into the annular groove 61 of the light-transmitting plate 6, and the two are fixed with glue. By setting the light-transmitting plate 6, the optical components inside the light-emitting slot 411 can be effectively protected from external moisture and dust corrosion, extending their service life, and stable light output can be achieved.

[0047] Preferably, the system further includes a second light guide 5. A receiving cavity 50 for accommodating the second light guide 5 is formed between the top plate 41, the first baffle 42, and the second light guide arm 12. A crystal wall 62 is integrally formed on the end face of the light-transmitting plate 6 near the receiving cavity 50. The crystal wall 62 is composed of multiple tiny facets at different angles, like the facets of a diamond. When light passes through the second light guide 5 and the light outlet groove 411 and shines on the crystal wall 62, multiple refractions and dispersions occur, decomposing into colorful light spots and forming a crystal-clear luminous effect. By setting the crystal wall 62 on the inner surface of the light-transmitting plate 6, and cooperating with the second light guide 5 in the receiving cavity 50, ordinary uniform surface light is transformed into a multi-point sparkling crystal light effect with a diamond-like texture, enhancing the luxurious and exquisite appearance of the product.

[0048] Preferably, a gap 7 is provided between the first light guide arm 11 and the top plate 41. Multiple light-transmitting holes 111 are spaced apart on the surface of the first light guide arm 11 facing the top plate 41. Some of the light transmitted inside the first light guide branch 32, when passing through the light-transmitting holes 111 on the first light guide arm 11, cannot be emitted upwards due to the obstruction of the top plate 41. Instead, it moves laterally along the gap 7 and eventually exits from the outside of the gap 7 away from the first baffle 42. Because the light-transmitting holes 111 are spaced apart, individual, bright light spots appear on the light-emitting surface, forming a "light spot array" effect. Through the cooperation of the gap 7 and the spaced light-transmitting holes 111, the originally continuous side-emitting surface is transformed into an optical pattern composed of multiple separate bright spots, achieving a dot-matrix side-emitting effect. Furthermore, by utilizing the light transmitted by the first light guide branch 32, no additional LEDs are required.

[0049] Preferably, the light guide structure is extended into a symmetrical shape with light entering from both ends, suitable for long strip-shaped light guide applications. Specifically, a circuit board 2 is provided at each end of the light guide bracket 1, and each circuit board 2 has a light-emitting unit 21. The first light guide 3 has two light-inlet portions 31, located at its left and right ends respectively, and precisely aligned with the two light-emitting units 21. The first light guide branch 32 and the second light guide branch 33 are both U-shaped or arc-shaped, and their two ends are respectively connected to the left and right light-inlet portions 31. The left and right light-emitting units 21 The emitted light is simultaneously injected into the first light guide branch 32 and the second light guide branch 33 from both ends, converging in the middle to ensure relatively uniform brightness throughout the light guide. To protect the end circuit boards 2 and enhance light focusing, each circuit board 2 is covered with a mounting box 8. The mounting box 8 protrudes from the corresponding light-emitting unit 21 towards the light-inlet section 31 to form an extension 81. The extension 81 acts as a light shield, with the two light-inlet sections 31 extending into their respective extensions 81, ensuring that all the light emitted by the LED is coupled into the light-inlet section 31 without any side light leakage. This symmetrical design with dual-end light entry solves the problem of brightness attenuation over long distances, resulting in highly uniform brightness across the entire length of the first and second light paths. The mounting box 8 with the extension 81 not only protects the circuit board 2 but also acts as a focusing coupler, optimizing light energy utilization and preventing end light leakage.

[0050] Preferably, the light guide bracket 1 is further provided with a support base 9 located below it. The support base 9 supports the light guide bracket 1, the first light guide 3, and the light blocking component 4. A claw 91 is fixedly connected to the support base 9. The claw 91 has a locking hole 911 facing the light blocking component 4. The width of the locking hole 911 gradually decreases from its opening end to its interior. A locking block 44 is provided at one end of the light blocking component 4 near the support base 9. During installation, the light blocking component 4 is pressed down so that the locking block 44 is aligned with the entrance of the locking hole 911. As the pressing process proceeds, the gradually decreasing inner wall of the locking hole 911 will squeeze the locking block 44 until it is fully engaged, forming a firm interference fit. This achieves rapid and stable assembly of the light blocking component 4 and the support base 9, with high assembly efficiency and reliable connection.

[0051] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A light guide structure for dual-purpose light transmission, comprising a light guide bracket (1), wherein a circuit board (2) is disposed at one end of the light guide bracket (1), and a light-emitting unit (21) is disposed on the circuit board (2), characterized in that: The light guide bracket (1) is provided with a first light guide (3). The first light guide (3) includes a light-incident part (31), and a first light guide branch (32) and a second light guide branch (33) branching from and extending from the light-incident part (31). The light-incident part (31) corresponds to the position of the light-emitting unit (21). The light guide bracket (1) is provided with a first light guide arm (11) and a second light guide arm (12) corresponding to the first light guide branch (32) and the second light guide branch (33). The light-emitting side of the light guide bracket (1) is also provided with a light-blocking member (4). The light-blocking member (4) is configured to guide the light emitted by the light-emitting unit (21) through the light-incident part (31) and propagate along the first light guide branch (32) and the second light guide branch (33) respectively to form a first light path and a second light path. The first light path and the second light path are emitted from the first light guide arm (11) and the second light guide arm (12) respectively.

2. The optical guide structure for dual optical and optical applications according to claim 1, characterized in that: The light-blocking component (4) includes a top plate (41) and a first baffle (42) connected to each other. The top plate (41) is located above the light guide bracket (1). The first baffle (42) extends between the first light guide arm (11) and the second light guide arm (12), and the projections of the first light guide arm (11) and the second light guide arm (12) on the first baffle (42) both fall within the boundary of the first baffle (42). Both the top plate (41) and the first baffle (42) are made of opaque material, and together they define the first light guide branch. The light from (32) is emitted from the side of the first light guide arm (11) away from the first baffle (42); the top plate (41) has a through light outlet groove (411) at its end. The light outlet groove (411) is located on the side of the first baffle (42) close to the second light guide arm (12). The top plate (41) and the first baffle (42) also jointly define that the light from the second light guide branch (33) is emitted from the side of the second light guide arm (12) toward the first baffle (42) and emitted outward through the light outlet groove (411).

3. The optical guide structure for dual optical and optical applications according to claim 2, characterized in that: The light-blocking component (4) also includes a second baffle (43) connected to the top plate (41). The second baffle (43) extends between the second light guide arm (12) and the first baffle (42), and the projection surface of the second baffle (43) falls within the boundary of the second light guide arm (12).

4. The optical guide structure for dual optical and optical applications according to claim 2, characterized in that: The light guide structure further includes a second light guide (5). A receiving cavity (50) for accommodating the second light guide (5) is formed between the top plate (41), the first baffle (42) and the second light guide arm (12). The second light guide (5) has an inclined light guide surface (51). The light guide surface (51) is inclined toward the direction close to the second light guide arm (12) to guide the light from the second light guide branch (33) to the light outlet groove (411).

5. The optical guide structure for dual optical and optical applications according to claim 4, characterized in that: The light guide surface (51) is provided with a plurality of arc-shaped ribs (511) spaced apart, and the extension direction of the arc-shaped ribs (511) is consistent with the emission direction of the light guided by the light guide surface (51).

6. The optical guide structure for dual optical and optical applications according to claim 2, characterized in that: The light-emitting groove (411) is covered by a light-transmitting plate (6), and the light-transmitting plate (6) has an annular groove (61) circumferentially formed. The top plate (41) is embedded in the annular groove (61) and is fixedly connected to the light-transmitting plate (6).

7. The optical guide structure for dual optical and optical applications according to claim 6, characterized in that: It also includes a second light guide (5), and a receiving cavity (50) for accommodating the second light guide (5) is formed between the top plate (41), the first baffle (42) and the second light guide arm (12), and a crystal wall (62) is provided on the end face of the light-transmitting plate (6) near the receiving cavity (50).

8. The optical guide structure for dual optical and optical applications according to claim 2, characterized in that: A gap (7) is provided between the first light guide arm (11) and the top plate (41). The first light guide arm (11) has a plurality of light-transmitting holes (111) spaced apart on the surface of the top plate (41). Part of the light from the first light guide branch (32) passes through the gap (7) and is emitted in a direction away from the first baffle (42).

9. The optical guide structure for dual optical and optical applications according to claim 1, characterized in that: Two circuit boards (2) are provided, and each of the two circuit boards (2) is provided with a light-emitting unit (21), which is respectively located at both ends of the light guide bracket (1). The first light guide (3) has two light-incident parts (31), which are respectively aligned with the two light-emitting units (21). The two ends of the first light guide branch (32) and the two ends of the second light guide branch (33) are respectively connected to the two light-incident parts (31). The outer side of the two circuit boards (2) is covered with a mounting box (8). The mounting box (8) protrudes towards the light-incident part (31) at the position corresponding to the light-emitting unit (21) and forms an extension (81). The two light-incident parts (31) respectively extend into the corresponding extension (81).

10. A dual-purpose optical guide structure according to claim 1, characterized in that: It also includes a support base (9) located below the light guide bracket (1), the support base (9) supporting the light guide bracket (1), the first light guide (3) and the light blocking member (4); a claw (91) is fixedly connected to the support base (9), the claw (91) has a card hole (911) facing the light blocking member (4), the width of the card hole (911) is gradually reduced from its opening end to its interior, and a card block (44) is provided at one end of the light blocking member (4) near the support base (9), the card block (44) is inserted into the card hole (911) and engaged with it.

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