Optical system with 3D abyss effect

Abstract

The application discloses an optical system with 3D abyss effect, which comprises a base, a circuit board, a light source, a light guide plate, a support, a protective shell and an inner lampshade; the circuit board is fixedly connected with the base; the light source is electrically connected with the circuit board; the support is fixedly connected with the circuit board; the protective shell is fixedly connected with the circuit board; the protective shell is fixedly connected with the support; the light guide plate is clamped with the protective shell; the light guide plate is located between the support and the inner lampshade; the inner lampshade is clamped with the protective shell; the side of the light guide plate close to the support is provided with light guide small ball patterns; the side of the light guide plate close to the inner lampshade is provided with an aluminum plating layer; the side of the inner lampshade close to the light guide plate is plated with chromium; the reflectivity of the inner lampshade plated with chromium is 50%-80%, and the transmittance is 50%-20%; the 3D abyss effect is formed through cooperation of the light guide plate and the inner lampshade; the structure is simple, the cost is low, the optical efficiency is high, and the scientific and delicate feeling of the lamp is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, specifically to an optical system with a 3D abyss effect. Background Technology

[0002] Compared to traditional halogen bulbs, LED lights offer numerous advantages, one of the most significant being higher brightness and lower energy consumption. This is because LEDs are semiconductor materials with extremely fast current response and high luminous efficiency. These characteristics make LED automotive lights more energy-efficient and environmentally friendly than traditional halogen bulbs. Furthermore, LED automotive lights have a longer lifespan and are more durable, providing drivers with a longer user experience and making them increasingly popular. The application of LEDs has also led to greater integration in automotive lighting, resulting in the emergence of multi-functional, composite lighting fixtures.

[0003] The 3D abyss effect is achieved by placing a light source between a semi-transparent mirror and a one-way mirror. The light emitted by the light source is continuously reflected between the semi-transparent mirror and the one-way mirror, creating an effect of infinitely superimposed mirror images.

[0004] Existing automotive lights are often bulky and have difficulty effectively adjusting for vibrations during vehicle operation, which affects imaging quality.

[0005] Therefore, there is a need for a small-sized automotive lighting optical system with vibration adjustment capabilities to meet the requirements of automotive lighting. Summary of the Invention

[0006] The purpose of this invention is to provide an optical system with a 3D abyss effect to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an optical system with a 3D abyss effect includes a base, a circuit board, a light source, a light guide plate, a bracket, a protective shell, an inner lampshade, and an aluminum-plated layer. The circuit board is fixedly connected to the base, the light source is electrically connected to the circuit board, the bracket is fixedly connected to the circuit board, the protective shell is fixedly connected to the circuit board, the protective shell is fixedly connected to the bracket, the light guide plate is snapped into the protective shell, the light guide plate is located between the bracket and the inner lampshade, the inner lampshade is snapped into the protective shell, and the aluminum-plated layer is used to reflect light.

[0008] The base serves as the mounting foundation for the optical system. The circuit board provides a stable operating current for the light source, preventing damage. The circuit board has mounting holes corresponding to the base. The bracket and protective shell are fixed together through the mounting holes on the circuit board. The light guide plate is snapped onto the protective shell and fixed above the light source. When the light source is powered on, the light is transmitted through the light guide plate and illuminates the display pattern onto the inner lampshade. The aluminum plating layer is used to reflect the light inside the light guide plate, thereby producing a 3D abyss effect.

[0009] Furthermore, the light guide plate has a light guide ball pattern on the side near the bracket, and an aluminum plating layer on the side of the light guide plate near the inner lampshade. The inner lampshade is also aluminum plating on the side near the light guide plate. The reflectivity of the aluminum-plated inner lampshade is 50%-80%, and the transmittance is 50%-20%. The light guide plate has a textured surface for light transmission.

[0010] The light emitted from the light source undergoes total internal reflection through the patterned light-guiding spheres in the light guide plate. A small portion of the light passes through the inner lampshade, while the majority is reflected back onto the aluminum plating layer of the light guide plate via a localized aluminized area on the inner surface of the lampshade. This process repeats, creating a 3D abyss effect. The central 3D abyss effect is due to a portion of the light being reflected back by the patterned light-guiding spheres in the light guide plate, while some light continues to propagate towards the center of the light guide plate. Upon encountering the textured surface, the total internal reflection is disrupted, resulting in light escaping and creating the same 3D abyss effect as the surrounding area. This effect can be modified... By varying the texture of the inner lampshade, various 3D abyss effects can be achieved. The higher the reflectivity of the inner lampshade, the more layers of the 3D abyss are formed, and the more obvious the 3D abyss effect. However, higher reflectivity also leads to lower transmittance, resulting in reduced light emission efficiency. Conversely, lower reflectivity of the inner lampshade results in fewer layers of the 3D abyss and a less obvious 3D abyss effect. Currently, the best 3D abyss effect is achieved when the lamp has a brightness of 500 cd / m2 and a reflectivity of 80%. To ensure that the 3D abyss effect is formed around the edges and in the center, aluminum plating is required around the light-emitting area of ​​the light guide plate, but aluminum plating is not allowed in the light-emitting area itself.

[0011] Furthermore, the distance between the inner lamp cover and the light guide plate is 0.5mm-3mm.

[0012] The smaller the distance between the inner lampshade and the light guide plate, the narrower the light strip will be, and there will be no gap between the light strips, resulting in a weaker sense of three-dimensionality. The larger the distance between the inner lampshade and the light guide plate, the wider the light strip will be, and there will be gaps between the light strips, resulting in a stronger sense of three-dimensionality. The best three-dimensional effect is achieved when the distance between the inner lampshade and the light guide plate is controlled between 0.5mm and 3mm.

[0013] Furthermore, the thickness of the light guide plate is 2.5mm-5mm.

[0014] The greater the thickness of the light guide plate, the worse the uniformity; the smaller the thickness, the lower the light efficiency. Maintaining the thickness of the light guide plate between 2.5mm and 5mm yields the best results.

[0015] Furthermore, the side of the bracket closest to the light guide plate is plated with aluminum, and a cooling fan is provided on the side of the bracket closest to the light source, with the air outlet of the cooling fan facing the light source.

[0016] To improve the overall luminous efficiency, aluminum plating is required on the side of the bracket closest to the light guide plate to reduce light loss. To prevent the light source from overheating during operation, a cooling fan is installed on the bracket. When the cooling fan is activated, airflow is generated within the optical system to lower the temperature and reduce light source loss.

[0017] Furthermore, the light source uses LED lamps, and several light sources are arranged on the circuit board, with a spacing of 6mm-15mm between them.

[0018] To save energy, LED lights are used as the light source, and the spacing between the light sources is set at 6mm-15mm, which is the optimal luminous efficiency. In addition, the LED lights can be arranged with two, three, or RGB LEDs as needed to achieve a multi-color 3D abyss effect.

[0019] Furthermore, the upper end of the light guide plate is provided with a locking block. The protective shell includes a shell, a first electromagnet, a second electromagnet, and an adjustment component. The shell is fastened to the bracket. The first and second electromagnets are fastened to the shell. The first and second electromagnets are arranged opposite to each other. The adjustment component is slidably connected to the shell. The adjustment component is electrically connected to the first and second electromagnets. The shell is provided with a slot. The slot is located between the first and second electromagnets. The locking block is inserted into the slot. An air flow channel is left between the locking block and the slot. An adjustment magnet is provided inside the locking block. The opposing ends of the first electromagnet and the adjustment magnet are the same magnetic poles. The opposing ends of the second electromagnet and the adjustment magnet are also the same magnetic poles.

[0020] The light guide plate is inserted into the protective shell via a clip. Vibrations during vehicle operation are transmitted to the headlight. Since there are gaps between the components inside the headlight, and due to differences in materials and vibration frequencies, the distance between the light guide plate and the inner lamp cover will slightly shift during vibration, affecting the headlight's imaging effect. The cooling fan creates airflow within the optical system, and the airflow passes through the air channel between the clip and the slot. If the light guide plate shifts relative to the protective shell, the cross-sectional area of ​​the air channel between the clip and the slot will change. If the cross-sectional area decreases, the gas velocity will increase. According to Bernoulli's principle, the greater the gas velocity, the lower the pressure. The shift of the light guide plate is determined by adjusting the component to detect changes in gas pressure. This displacement is then compensated for by the cooperation between the first and second electromagnets and the adjusting magnet, reducing the impact of vibration.

[0021] If the light guide plate shifts to one side of the first electromagnet, the cross-section of the airflow channel at that position will become smaller, the flow velocity will increase, and the pressure will decrease. The adjustment component detects the pressure change and controls the first electromagnet to start. Because the opposing ends of the first electromagnet and the adjustment magnet have the same magnetic poles, according to the principle of like poles repulsion, the first electromagnet will push the adjustment magnet to move in the opposite direction, thereby driving the light guide plate to move, compensating for vibration displacement, and ensuring imaging quality.

[0022] Furthermore, the protective shell is also provided with a sliding cavity, and the adjustment component is slidably connected to the sliding cavity. The adjustment component includes a slide rod, a spring, a conductive head, and an electrode plate. The slide rod is slidably connected to the sliding cavity, the spring is sleeved on the slide rod, the conductive head is fastened to the slide rod, the conductive head is located at the end away from the spring, the electrode plate is fastened to the sliding cavity, and the electrode plate is electrically connected to the first electromagnet and the second electromagnet.

[0023] During adjustment: The conductive head abuts against the electrode plate.

[0024] If the light guide plate shifts to one side of the first electromagnet, the cross-sectional area of ​​the airflow channel between the card block and the card slot will change. If the airflow channel becomes smaller, the pressure at that position will decrease, and the pressure in the sliding cavity will be greater than the pressure in the airflow channel. This will push the slide rod to move towards the airflow channel, stretch the spring, and cause the conductive head to contact the electrode plate, thereby connecting the circuit to the first electromagnet. The first electromagnet will then start and, in conjunction with the adjusting magnet, adjust the position of the light guide plate.

[0025] Furthermore, the aluminum plating layer is located on the side of the bracket closest to the light guide plate.

[0026] By placing the aluminum plating layer on the bracket, the light transmitted from the light guide plate can be directly reflected, thereby producing a 3D abyss effect. This eliminates the need to set the light guide ball pattern on the light guide plate, reducing costs.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention achieves total internal reflection of the light emitted by the light source by setting the light guide ball pattern on the surface of the light guide plate, and chrome plating the inner surface of the inner lampshade to make the inner lampshade function as a semi-transparent lens. Furthermore, an aluminum plating layer is provided on the non-light-emitting area of ​​the light guide plate near the inner lampshade, so that the light guide plate functions as a one-way mirror. The combination of the light guide plate and the inner lampshade forms a 3D abyss effect, and various shapes of 3D abyss effects can be achieved by changing the shape of the texture. The structure is simple, the cost is low, the optical efficiency is high, and the technological and exquisite feel of the lamp is enhanced.

[0028] By plating aluminum on the side of the bracket near the light guide plate, light loss is reduced and the overall luminous efficiency is improved. By installing a cooling fan on the bracket, airflow is created within the optical system to reduce the temperature and prevent overheating from damaging the light source.

[0029] By setting an airflow channel between the card block and the card slot, the cross-section of the airflow channel changes when the light guide plate vibrates. The pressure change generated by the airflow formed by the cooling fan flowing through the changing airflow channel is used to control the adjustment component, which in turn automatically controls the activation of the first and second electromagnets. Together with the adjustment magnet, the position of the light guide plate is automatically adjusted, reducing the impact of vibration on imaging quality. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the circuit board and light source of the present invention;

[0033] Figure 3 yes Figure 1 Top view;

[0034] Figure 4 yes Figure 3 Sectional view along axis AA;

[0035] Figure 5 yes Figure 4 A magnified view of part B;

[0036] Figure 6 yes Figure 4 A magnified view of a portion of C;

[0037] Figure 7 This is a schematic diagram of the adjustment component;

[0038] Figure 8 This is a schematic diagram of the optical guide plate.

[0039] Figure 9 This is the optical path diagram of the present invention;

[0040] Figure 10 This is a diagram showing the lighting effect of the present invention;

[0041] In the diagram: 1-base, 2-circuit board, 3-light source, 4-light guide plate, 41-light guide ball pattern, 42-aluminum plating layer, 43-block, 431-magnet, 5-bracket, 51-cooling fan, 6-protective shell, 61-shell, 611-slot, 612-sliding cavity, 62-first electromagnet, 63-second electromagnet, 64-adjustment component, 641-slide bar, 642-spring, 643-conductive head, 644-electrode plate, 7-inner lamp cover. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] The present invention provides the following technical solution:

[0044] like Figure 1 , Figure 2 , Figure 3 As shown, the optical system with a 3D abyss effect includes a base 1, a circuit board 2, a light source 3, a light guide plate 4, a bracket 5, a protective shell 6, an inner lampshade 7, and an aluminum-plated layer 42. The circuit board 2 is securely connected to the base 1, the light source 3 is electrically connected to the circuit board 2, the bracket 5 is securely connected to the circuit board 2, the protective shell 6 is securely connected to the circuit board 2, the protective shell 6 is securely connected to the bracket 5, the light guide plate 4 is snapped into the protective shell 6, the light guide plate 4 is located between the bracket 5 and the inner lampshade 7, the inner lampshade 7 is snapped into the protective shell 6, and the aluminum-plated layer 42 is used to reflect light.

[0045] The base 1 serves as the mounting foundation for the optical system. The circuit board 2 provides a stable operating current for the light source 3 to prevent damage to the light source 3. The circuit board 2 has mounting holes corresponding to the base 1. The bracket 5 and the protective shell 6 are fixed together through the mounting holes on the circuit board 2. The light guide plate 4 is snapped onto the protective shell 6 and fixed above the light source 3. When the light source 3 is powered on, the light is transmitted through the light guide plate 4 and illuminates the display pattern onto the inner lamp cover 7. The aluminum plating layer 42 is used to reflect the light inside the light guide plate 4, thereby producing a 3D abyss effect.

[0046] like Figure 4 , Figure 8 , Figure 9 , Figure 10 As shown, the light guide plate 4 has a light guide ball pattern 41 on the side near the bracket 5, and an aluminum plating layer 42 on the side near the inner lamp cover 7. The inner lamp cover 7 is chrome-plated on the side near the light guide plate 4. The reflectivity of the chrome-plated inner lamp cover 7 is 50%-80%, and the transmittance is 50%-20%. The light guide plate 4 has a textured surface for light transmission.

[0047] The light emitted from light source 3 undergoes total internal reflection through the patterned light-guiding spheres 41 in the light guide plate 4. A small portion of the light passes through the inner lampshade 7, while most of the light undergoes total internal reflection through the localized chrome plating on the inner surface of the inner lampshade 7, then undergoes total internal reflection again onto the aluminum plating layer 42 of the light guide plate 4, and so on, creating a 3D abyss effect. The 3D abyss effect in the middle is due to a portion of the light being completely reflected by the patterned light-guiding spheres 41 in the light guide plate 4, while another portion continues to propagate towards the center of the light guide plate 4. Upon encountering the texture on the light guide plate 4, the total internal reflection is disrupted, resulting in light escaping and creating the same 3D abyss effect as the surrounding area. Furthermore, by changing the shape of the texture, various 3D abyss effects can be achieved. The higher the reflectivity of the inner lampshade 7, the more layers of 3D abyss are formed, and the more obvious the 3D abyss effect. However, higher reflectivity also leads to lower transmittance, resulting in reduced light output efficiency. Conversely, the lower the reflectivity of the inner lampshade 7, the fewer layers of 3D abyss are formed, and the less obvious the 3D abyss effect. Currently, under the condition of meeting the brightness of the lamp at 500 cd / m2 and using 80% reflectivity, the 3D abyss effect is the best. In order to form a 3D abyss effect around the perimeter and in the center, aluminum plating is required around the light-emitting area of ​​the light guide plate 4, but aluminum plating is not allowed in the light-emitting area itself.

[0048] like Figure 4 As shown, the distance between the inner lamp cover 7 and the light guide plate 4 is 0.5mm-3mm.

[0049] The smaller the distance between the inner lampshade 7 and the light guide plate 4, the narrower the light strip will be, and there will be no gap between the light strips, resulting in a weaker sense of three-dimensionality. The larger the distance between the inner lampshade 7 and the light guide plate 4, the wider the light strip will be, and there will be gap between the light strips, resulting in a stronger sense of three-dimensionality. The best three-dimensional effect is achieved when the distance between the inner lampshade 7 and the light guide plate 4 is controlled between 0.5mm and 3mm.

[0050] like Figure 4 As shown, the thickness of the light guide plate 4 is 2.5mm-5mm.

[0051] The greater the thickness of the light guide plate 4, the worse the uniformity; the smaller the thickness, the lower the light efficiency. Maintaining the thickness of the light guide plate 4 between 2.5mm and 5mm yields the best results.

[0052] like Figure 4 , Figure 5 As shown, the side of the bracket 5 closest to the light guide plate 4 is plated with aluminum, and the side of the bracket 5 closest to the light source 3 is provided with a cooling fan 51, with the air outlet of the cooling fan 51 facing the light source 3.

[0053] To improve the overall luminous efficiency, aluminum plating is required on the side of the bracket 5 near the light guide plate 4 to reduce light loss. To prevent the light source 3 from overheating during operation, a cooling fan 51 is installed on the bracket 5. When the cooling fan 51 is activated, airflow is generated within the optical system to reduce the temperature and decrease the loss of the light source 3.

[0054] like Figure 2 As shown, the light source 3 is an LED lamp, and there are several light sources 3 arranged on the circuit board 2, with a spacing of 6mm-15mm between them.

[0055] To save energy, LED lamps are used for light source 3, and the spacing between light sources 3 is set at 6mm-15mm, which is the best for luminous efficiency. In addition, the LED lamps can be arranged with two, three or RGB LEDs as needed to achieve a multi-color 3D abyss effect.

[0056] like Figure 4 , Figure 6 , Figure 8 As shown, the upper end of the light guide plate 4 is provided with a locking block 43. The protective shell 6 includes a shell 61, a first electromagnet 62, a second electromagnet 63, and an adjustment component 64. The shell 61 is fastened to the bracket 5. The first electromagnet 62 and the second electromagnet 63 are fastened to the shell 61. The first electromagnet 62 and the second electromagnet 63 are arranged opposite to each other. The adjustment component 64 is slidably connected to the shell 61 and electrically connected to the first electromagnet 62 and the second electromagnet 63. The shell 61 is provided with a slot 611, which is located between the first electromagnet 62 and the second electromagnet 63. The locking block 43 is inserted into the slot 611. An air flow channel is left between the locking block 43 and the slot 611. An adjustment magnet 431 is provided inside the locking block 43. The opposing ends of the first electromagnet 62 and the adjustment magnet 431 are the same magnetic poles. The opposing ends of the second electromagnet 63 and the adjustment magnet 431 are also the same magnetic poles.

[0057] The light guide plate 4 is inserted into the protective shell 6 via the clip 43. Vibrations during vehicle operation are transmitted to the headlight. There are gaps between the components inside the headlight, and due to different materials, the vibration frequencies are inconsistent. The distance between the light guide plate 4 and the inner lamp cover 7 will shift slightly during vibration, affecting the imaging effect of the headlight. The cooling fan 51 creates airflow within the optical system. The airflow passes through the air channel between the clip 43 and the slot 611. If the light guide plate 4 shifts relative to the protective shell 6, the cross-sectional area of ​​the air channel between the clip 43 and the slot 611 will change. If the cross-sectional area decreases, the gas velocity will increase. According to Bernoulli's principle, the greater the gas velocity, the lower the pressure. The shift of the light guide plate 4 is determined by the pressure change detected by the adjustment component 64. The shift is then compensated by the cooperation between the first electromagnet 62, the second electromagnet 63, and the adjustment magnet 431, reducing the impact of vibration.

[0058] If the light guide plate 4 shifts to one side of the first electromagnet 62, the cross-section of the airflow channel at that position will become smaller, the flow rate will increase, and the pressure will decrease. The adjustment component 64 detects the pressure change and controls the first electromagnet 62 to start. Since the opposing ends of the first electromagnet 62 and the adjustment magnet 431 have the same magnetic poles, according to the principle of like poles repulsion, the first electromagnet 62 will push the adjustment magnet 431 to move in the opposite direction, thereby driving the light guide plate 4 to move, compensating for vibration displacement, and ensuring imaging quality.

[0059] like Figure 6 , Figure 7 As shown, the protective shell 6 is also provided with a sliding cavity 612. The adjustment component 64 is slidably connected to the sliding cavity 612. The adjustment component 64 includes a slide rod 641, a spring 642, a conductive head 643, and an electrode plate 644. The slide rod 641 is slidably connected to the sliding cavity 612. The spring 642 is sleeved on the slide rod 641. The conductive head 643 is fastened to the slide rod 641. The conductive head 643 is located at the end away from the spring 642. The electrode plate 644 is fastened to the sliding cavity 612. The electrode plate 644 is electrically connected to the first electromagnet 62 and the second electromagnet 63.

[0060] During adjustment: the conductive head 643 abuts against the electrode plate 644.

[0061] If the light guide plate 4 shifts to one side of the first electromagnet 62, the cross-sectional area of ​​the airflow channel between the card block 43 and the card slot 611 will change. If the airflow channel becomes smaller, the pressure at that position will decrease, and the pressure in the sliding cavity 612 will be greater than the pressure in the airflow channel. This will push the slide rod 641 to move towards the airflow channel, and the spring 642 will be stretched. The conductive head 643 will come into contact with the electrode plate 644, thereby connecting the circuit to the first electromagnet 62. The first electromagnet 62 will start and cooperate with the adjusting magnet 431 to adjust the position of the light guide plate 4.

[0062] like Figure 4 As shown, the aluminum plating layer 42 is located on the side of the bracket 5 near the light guide plate 4.

[0063] By setting the aluminum plating layer 42 on the bracket 5, the light transmitted from the light guide plate 4 can be directly reflected, thereby producing a 3D abyss effect. This eliminates the need to set the light guide ball pattern 41 on the light guide plate 4, reducing costs.

[0064] The working principle of this invention is as follows: The light emitted by the light source 3 undergoes total internal reflection through the small ball in the light guide plate 4. A small portion of the light passes through the inner lampshade 7, while most of the light undergoes total internal reflection through the local aluminum plating on the inner surface of the inner lampshade 7 and then back to the local aluminum plating on the light guide plate 4, undergoing total internal reflection again. This process is repeated to create a 3D abyss effect. The cooling fan 51 on the bracket 5 creates airflow within the optical system, reducing the temperature and minimizing the loss of the light source 3. This airflow also changes the cross-sectional area of ​​the airflow channel between the card block 43 and the card slot 611 when the light guide plate 4 shifts. According to Bernoulli's principle, the adjustment component 64 detects the pressure change within the airflow channel to automatically control the activation of the first electromagnet 62 and the second electromagnet 63, which, in conjunction with the adjustment magnet 431 within the card block 43, adjusts the position of the light guide plate 4.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optical system with a 3D abyss effect, characterized in that: The optical system with 3D abyss effect includes a base (1), a circuit board (2), a light source (3), a light guide plate (4), a bracket (5), a protective shell (6), an inner lampshade (7), and an aluminum plating layer (42). The circuit board (2) is fixedly connected to the base (1), the light source (3) is electrically connected to the circuit board (2), the bracket (5) is fixedly connected to the circuit board (2), the protective shell (6) is fixedly connected to the circuit board (2), the protective shell (6) is fixedly connected to the bracket (5), the light guide plate (4) is snapped into the protective shell (6), the light guide plate (4) is located between the bracket (5) and the inner lampshade (7), the inner lampshade (7) is snapped into the protective shell (6), and the aluminum plating layer (42) is used to reflect light. The upper end of the light guide plate (4) is provided with a locking block (43). The protective shell (6) includes a shell (61), a first electromagnet (62), a second electromagnet (63), and an adjustment component (64). The shell (61) is fastened to the bracket (5). The first electromagnet (62) and the second electromagnet (63) are fastened to the shell (61). The first electromagnet (62) and the second electromagnet (63) are arranged opposite to each other. The adjustment component (64) is slidably connected to the shell (61). The adjustment component (64) is connected to the first electromagnet (62) and the second electromagnet (63). The magnet (63) is electrically connected. The housing (61) is provided with a slot (611). The slot (611) is located between the first electromagnet (62) and the second electromagnet (63). The block (43) is inserted into the slot (611). An air passage is left between the block (43) and the slot (611). An adjusting magnet (431) is provided in the block (43). The opposing ends of the first electromagnet (62) and the adjusting magnet (431) are the same magnetic poles. The opposing ends of the second electromagnet (63) and the adjusting magnet (431) are also the same magnetic poles. The bracket (5) has aluminum plating on the side of the light guide plate (4), and a cooling fan (51) is provided on the side of the bracket (5) near the light source (3). The air outlet of the cooling fan (51) faces the light source (3). The protective shell (6) is also provided with a sliding cavity (612). The adjustment component (64) is slidably connected to the sliding cavity (612). The adjustment component (64) includes a slide rod (641), a spring (642), a conductive head (643), and an electrode plate (644). The slide rod (641) is slidably connected to the sliding cavity (612). The spring (642) is sleeved on the slide rod (641). The conductive head (643) is fastened to the slide rod (641). The conductive head (643) is located at the end away from the spring (642). The electrode plate (644) is fastened to the sliding cavity (612). The electrode plate (644) is electrically connected to the first electromagnet (62) and the second electromagnet (63). During adjustment: the conductive head (643) abuts against the electrode plate (644).

2. The optical system with a 3D abyss effect according to claim 1, characterized in that: The light guide plate (4) has a light guide ball pattern (41) on the side near the bracket (5), and an aluminum plating layer (42) is provided on the side of the light guide plate (4) near the inner lamp cover (7). The side of the inner lamp cover (7) near the light guide plate (4) is chrome-plated. The reflectivity of the chrome-plated side of the inner lamp cover (7) is 50%-80%, and the transmittance is 50%-20%. The light guide plate (4) has a textured surface for light transmission.

3. The optical system with a 3D abyss effect according to claim 2, characterized in that: The distance between the inner lamp cover (7) and the light guide plate (4) is 0.5mm-3mm.

4. An optical system with a 3D abyss effect according to claim 3, characterized in that: The thickness of the light guide plate (4) is 2.5mm-5mm.

5. An optical system with a 3D abyss effect according to claim 4, characterized in that: The light source (3) is an LED lamp. Several light sources (3) are arranged on the circuit board (2), and the spacing between several light sources (3) is 6mm-15mm.

6. An optical system with a 3D abyss effect according to claim 1, characterized in that: The aluminum plating layer (42) is located on the side of the bracket (5) near the light guide plate (4).

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