Full-spectrum healthy LED light source device with eye health care function

Abstract

The invention belongs to the technical field of illumination, and discloses a full-spectrum healthy LED light source device with an eye health care function. The device comprises a circular positive light source irradiating downwards, a circular-ring-shaped backlight source irradiating upwards and a circular central light source which is located in the center of the circular-ring-shaped backlight source and irradiates upwards. The two kinds of white light lamp beads and the three kinds of red light lamp beads are installed on PCBs of the three kinds of light sources according to the number ratio calculated according to spectral energy distribution. Full-spectrum white light generated by the white light lamp beads is matched with red light which is generated by the red light lamp beads and has narrow half-wave width and easy-to-control spectral energy, and finally formed mixed light has the effect of preventing myopia under simultaneous illumination of the front light source and the back light source; the central light source is matched with the lens to irradiate light spots which continuously change and move on the light screen to drive eyeballs to do corresponding movement, so that the eyes and peripheral muscles are driven to move, and the effects of promoting blood circulation and playing a role in eye health care are achieved; the 1060 aluminum surface prepared through double-beam interference photoetching has a high-hydrophobicity self-cleaning function.

Description

Technical Field

[0001] This invention relates to the fields of eye care and LED light source technology, specifically a full-spectrum health LED light source device with eye care function. Background Technology

[0002] With societal development, the problem of myopia among children and adolescents is becoming increasingly serious. The incidence of myopia in children and adolescents is gradually rising, and the age of onset is trending younger, drawing increasing attention. Without appropriate intervention, myopia is projected to affect 50% of the world's population by 2050, becoming a leading cause of irreversible blindness.

[0003] The lighting environment is closely related to the occurrence and development of myopia. Natural light, being full-spectrum light, promotes the release of dopamine from the retina. Dopamine helps photoreceptor cells respond to light stimulation, inhibits axial elongation, and allows light to focus on the retina. A lack of natural light leads to insufficient dopamine secretion from the retina, increasing the risk of myopia. Full-spectrum and high-intensity light have been proven to slow the onset and progression of myopia.

[0004] In my country's national treasure of traditional opera, opera actors are required to train their eyesight. Through various eye movements—up, down, left, right, up, left, down, right, or down, left, up, right, and right—and changes in focus from near to far or far to near, they train the flexibility of their eyes, making them bright and expressive. Eye exercises in various countries are also based on regulating eye movements to relieve eye strain.

[0005] Currently, domestically produced full-spectrum health LED light sources have limited functionality, only providing illumination by mimicking natural light. While they may help delay myopia, their additional eye care functions, such as relieving eye strain, require further development. Existing full-spectrum health LED light sources suffer from significant functional deficiencies: they only possess basic illumination functions that simulate natural light. Although they can assist in delaying myopia through their full-spectrum characteristics, their limited functionality is a prominent issue. They fail to incorporate the scientific principles of relieving eye strain through eye movements—such as the core regulatory logic of eye exercises in traditional Chinese opera—and lack targeted designs to guide eye movements, thus failing to actively exercise eye muscles and regulate ciliary muscle spasm. This deficiency results in the light source only passively delaying myopia, failing to address key eye care needs such as relieving eye strain, and thus failing to meet the diverse eye care demands of children and adolescents.

[0006] Therefore, this invention discloses a full-spectrum eye-protecting and health-preserving LED light source device with an eye-movement function. It can not only simulate the eye-protecting effect of natural light with a full spectrum, promote the secretion of dopamine, and improve the oxygen supply capacity of blood cells in retinal blood vessels, but also drive eye movement, thereby driving the movement of eye and surrounding muscles, regulating ciliary muscle spasm, relieving eye fatigue, and thus effectively preventing and treating myopia. Summary of the Invention

[0007] The problem solved by this invention is to provide a full-spectrum health LED light source device with eye-care functions. It not only complements the beneficial red light (700-780nm) and low-blue-light-damage white light illumination functions, but also provides eye-care functions that stimulate eye movement, protecting the retina, promoting blood circulation, relieving eye fatigue, and preventing myopia. The 1060 aluminum surface prepared by dual-beam interference lithography also possesses highly hydrophobic self-cleaning properties.

[0008] The technical solution of this invention is as follows:

[0009] A full-spectrum health LED light source device with eye care function includes a downward-illuminating circular front light source (1), an upward-illuminating circular backlight source (2), and a circular center light source (3) located in the center of the circular backlight source that illuminates upwards. Two types of white LED beads and three types of red LED beads are installed on the PCB board of the above three light sources according to the quantity ratio calculated according to the spectral energy distribution, and a lens is installed in front of the upward-illuminating circular center light source. The upward-illuminating circular center light source located in the center of the circular backlight source can work with the lens to make the light spot illuminating the screen (ceiling, wall, etc.) constantly change and move. The surface structure of the 1060 aluminum shell of the light source device is processed by double-beam interference lithography.

[0010] Furthermore, the two white LEDs emitting different color temperatures are a first white LED with a color temperature of 4000K±200K and a second white LED with a color temperature of 5500K±200K, each with an electrical power of 0.5W; the three red LEDs with different wavelength ranges are a first red LED with a peak wavelength range of 650-660nm, a second red LED with a peak wavelength range of 680-690nm, and a third red LED with a peak wavelength range of 730-740nm, each with an electrical power of 0.5W.

[0011] Furthermore, the downward-illuminating circular positive light source is the first light source, with a diameter of 16cm, and includes a first white light bulb, a second white light bulb, a first red light bulb, a second red light bulb, and a third red light bulb in a ratio ranging from 5:5:1:1:1 to 15:15:1:1:1; the upward-illuminating annular backlight source is the second light source, with a diameter of 16cm and an inner diameter of 13cm, and includes a first white light bulb, a second white light bulb, a first red light bulb, a second red light bulb, and a third red light bulb in a ratio ranging from 5:5:1:1:1 to 15:15:1:1:1; the upward-illuminating circular central light source located in the center of the annular backlight source is the third light source, with a diameter of 12cm, and includes a first white light bulb, a second white light bulb, a first red light bulb, a second red light bulb, and a third red light bulb in a ratio ranging from 5:5:1:1:1 to 15:15:1:1:1.

[0012] Furthermore, the trajectory and size of the light spot change regularly with time and music. When the light spot moves, the trajectory is as follows: flashing up and down 4 times, flashing left and right 4 times, flashing diagonally from left to right and from right to left 4 times, flashing diagonally from right to left and from left to right 2 times, rotating clockwise 2 times, rotating counterclockwise 2 times, moving up and down 4 times, moving left and right 4 times, moving diagonally from left to right and from right to left 4 times, and moving diagonally from right to left and from left to right 4 times. When the light spot is in the center and does not move, the size of the light spot changes from large to small and from small to large 4 times. One round trip (size change) of the light spot is counted as one set of motion.

[0013] Furthermore, when the light spot moves, the movement time along each flashing motion trajectory is 10s, and the clockwise and counterclockwise circular rotation time is 5s each; the movement time along the up, down, left, and right moving motion trajectory is 15s each, and the movement time along the diagonal upper left and lower right and upper right and lower left is 18s each; when the light spot is in the center position and does not move, the time for the light spot to change from large to small or from small to large is 5 seconds.

[0014] Furthermore, the surface self-cleaning function is achieved in the full-spectrum light source device housing, whose structural processing parameters are: dual-beam laser interference lithography, with an energy density of 0.32 J / cm². 2 The exposure time was 7 seconds, followed by treatment with perfluorodecyltriethoxysilane. The etched sample was immersed in a 1 wt% perfluorodecyltriethoxysilane alcohol solution for 24 hours. After immersion, the sample was removed and placed in an oven at 120°C for 2 hours to form a stable superhydrophobic surface.

[0015] Compared with existing technologies, the technical solution of this invention has the following outstanding advantages: 1. Full-spectrum precise eye protection, with significant myopia prevention effects and adapted to physiological needs. This invention uses three red light beads with precisely matched peak wavelengths and two white light beads with different color temperatures in a scientific ratio according to spectral energy distribution. This not only fully supplements the beneficial red light band necessary for the human eye in the 700-780nm range, but also achieves a synergistic balance of "low blue light damage + high color rendering"—the proportion of blue light is strictly controlled within a safe threshold to avoid photochemical damage to the retina. At the same time, the spectrum continuity is close to natural light, which can effectively promote the secretion of dopamine in the retina, enhance choroidal blood perfusion, and provide sufficient oxygen and nutrients to the sclera. From a physiological mechanism perspective, it inhibits abnormal growth of the axial length. Compared with existing light sources that only "similar" to natural light, myopia prevention is more targeted and the effect is more stable, adapting to the eye development characteristics of children and adolescents and high-frequency lighting scenarios such as daily reading and learning. 2. Intelligent and comprehensive dynamic eye care functions, with more efficient relief of eye fatigue. This invention innovatively combines "dynamic light spot guidance" with eye care principles. Through a central light source and a lens-generated light spot, it designs a full-dimensional motion system of "flash-move-circle-size change," perfectly matching the core logic of traditional Chinese opera eye training and the muscle adjustment needs of eye exercises. It comprehensively activates the ciliary muscle, extraocular muscles, and surrounding muscle groups, thoroughly relieving ciliary muscle spasm. Simultaneously, the light spot movement is synchronized with musical rhythm, and the movement time for each trajectory is scientifically calculated to avoid excessive muscle fatigue. Compared to traditional methods, it is more fun and proactive, especially suitable for children and adolescents to maintain independently, achieving "lighting as health care" without requiring additional time, solving the pain point of "difficult implementation" in traditional eye care methods. 3. Superhydrophobic self-cleaning and structurally reliable, resulting in low maintenance costs and a long service life. This invention uses 1060 aluminum as the outer shell substrate. Through dual-beam interference lithography, it achieves a self-cleaning effect where "dust does not adhere and water droplets roll off," significantly reducing the maintenance frequency and cleaning costs of high-altitude lighting equipment. Simultaneously, 1060 aluminum possesses excellent thermal conductivity, which, combined with the surface microstructure formed by lithography, improves the heat dissipation efficiency of the light source, preventing light decay or shortened lifespan of the LEDs due to overheating. The modified surface structure, after drying and curing at 120℃, exhibits strong adhesion and good weather resistance, maintaining its self-cleaning performance for a long time, thus solving the dual pain points of existing light sources: "difficult to clean and short lifespan." 4. Multifunctional collaborative design enhances scene adaptability and practicality.Existing technologies are mostly "single-function oriented," while this invention innovatively achieves a deep integration of three core functions: "full-spectrum lighting + dynamic eye care + self-cleaning." It can provide uniform and healthy daily lighting; it can independently activate the eye care mode to adapt to the usage needs of different scenarios such as home, classroom, and study; the wide range of lamp bead ratios can flexibly adjust spectral parameters according to ambient light intensity and user groups, taking into account both lighting comfort and eye protection; the overall structure adopts a modular design, with three light sources installed on independent PCB boards, making production and assembly convenient, and the selection of core components such as lenses and lamp beads is mature and cost-controllable. Compared with existing single-function or complex eye-protection light source devices, it is easier to achieve large-scale production and market promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the full-spectrum health LED light source device with eye care function of the present invention.

[0017] Figure 2 Example 1 - Natural spectrum of color temperature 4000K±200K

[0018] Figure 3 This is a schematic diagram of the motion trajectory of the light spot in Example 2.

[0019] Figure 4 The diagram shows the hydrophobic properties of the surface self-cleaning function of this invention. Detailed Implementation

[0020] To provide a clearer understanding of the present invention, the following detailed description is provided in conjunction with embodiments based on the technical solutions of the present invention. The present invention is not limited to these embodiments, and any modifications and / or alterations made to the present invention will fall within the scope of protection of the present invention.

[0021] Example 1:

[0022] like Figure 1 As shown, this embodiment is designed for close-range reading scenarios such as home studies and children's study desks. A downward-facing circular front light source (1) and an upward-facing circular ring backlight source (2) work together to provide warm white light suitable for reading. The working LEDs include a first white LED, a first red LED, a second red LED, and a third red LED, with a color temperature of 4000K±200K and a natural spectrum as shown. Figure 2 As shown, it has good spectral continuity, low blue light, completes the beneficial red light in the 700-780nm range, and is close to natural light, thus having the functions of protecting the retina and promoting blood circulation.

[0023] In some embodiments, the three red LED beads with different wavelength ranges are: the first red LED bead with a peak wavelength range of 650-660nm, the second red LED bead with a peak wavelength range of 680-690nm, and the third red LED bead with a peak wavelength range of 730-740nm, all with an electrical power of 0.5W.

[0024] In some embodiments, the downward-illuminating circular positive light source is a first light source with a diameter of 16cm, comprising a first white LED, a second white LED, a first red LED, a second red LED, and a third red LED in a ratio ranging from 5:5:1:1:1 to 15:15:1:1:1; the upward-illuminating annular backlight source is a second light source with a diameter of 16cm and an inner diameter of 13cm, comprising a first white LED, a second white LED, a first red LED, a second red LED, and a third red LED in a ratio ranging from 5:5:1:1:1 to 15:15:1:1:1; and the upward-illuminating circular central light source located at the center of the annular backlight source is a third light source with a diameter of 12cm, comprising a first white LED, a second white LED, a first red LED, a second red LED, and a third red LED in a ratio ranging from 5:5:1:1:1 to 15:15:1:1:1.

[0025] In some embodiments, the two types of white LEDs and three types of red LEDs are evenly distributed on their respective PCB boards in the aforementioned proportions, forming a continuous and near-natural full-spectrum mixed light (spectral density as shown in the figure) after power-on. Figure 2 (As shown). The beneficial red light band of 700-780nm is precisely filled in, while the blue light peak is controlled below 450nm and its energy percentage is ≤8% (far below the hazard threshold in GB / T38450-2020 "Photobiological Safety Requirements for LED Lighting Products"), thus avoiding photochemical damage to the retina caused by prolonged reading. Simultaneously, the full-spectrum characteristics promote increased dopamine secretion in the retina, enhance choroidal blood supply efficiency, provide sufficient oxygen to the sclera, and effectively inhibit abnormal axial elongation. In this scenario, the lighting uniformity is ≥0.85, the color rendering index Ra≥95, and R9≥80, clearly restoring the true colors of text and images in books, reducing visual fatigue, and is particularly suitable for children and adolescents' daily 2-4 hours of extracurricular reading needs.

[0026] In some implementations, the number of LEDs lit can be dynamically adjusted according to the ambient light intensity: when there is sufficient natural light (ambient illuminance ≥ 300 lx), only 50% of the white and red LEDs are activated to maintain an illuminance of 300-400 lx; ​​when there is insufficient ambient light (ambient illuminance < 100 lx), all LEDs are activated to ensure an illuminance of 500 lx or more, thus achieving a balance between energy saving and eye protection.

[0027] Example 2:

[0028] In this embodiment, a circular central light source (3) located in the center of the circular backlight and pointing upwards is used to work independently. The circular central light source located in the center of the circular backlight and pointing upwards can work with a lens to make the light spot on the screen (ceiling, wall, etc.) constantly change and move. The dynamic light spot guides the eye movement, realizes special eye health training, and meets the need for visual fatigue relief 10-15 minutes after studying or working.

[0029] like Figure 3 The trajectory and size of the light spot change regularly with time and music. When the light spot moves, the trajectory is as follows: flashing up and down - 4 sets, flashing left and right - 4 sets, flashing diagonally from left to right - 4 sets, flashing diagonally from right to left - 4 sets, rotating clockwise - 2 circles, rotating counterclockwise - 2 circles, moving up and down - 4 sets, moving left and right - 4 sets, moving diagonally from left to right - 4 sets, moving diagonally from right to left - 4 sets. When the light spot is in the center and does not move, the size of the light spot changes from large to small and from small to large - 4 sets. One round trip (size change) of the light spot is counted as 1 set of motion. When the light spot moves, the movement time along each flashing motion trajectory is 10s, and the clockwise and counterclockwise circular rotation time is 5s each; the movement time along the up, down, left, and right movement trajectories is 15s each, and the movement time along the diagonal upper left and lower right and upper right and lower left is 18s each; when the light spot is in the center and does not move, the time for the light spot to change from large to small or from small to large is 5 seconds.

[0030] When focusing on the movement of a light spot, the eyes must follow the spot in all directions (horizontal, vertical, and oblique) and adjust focus (changes in the size of the light spot correspond to changes in the distance of the viewpoint). This activates eight core eye muscle groups, including the ciliary muscle and extraocular muscles, promoting increased blood circulation in the eyes and effectively relieving ciliary muscle spasm caused by prolonged close-range eye use. It reduces the incidence of eye strain symptoms (dry eyes, eye irritation, blurred vision), improves eye movement flexibility, and is suitable for self-directed eye health training.

[0031] In some implementations, the speed of the light spot movement can be adjusted via a mobile app: for younger children (6-8 years old), the movement time of each trajectory is extended by 20% (e.g., 12 seconds per set for flashing trajectories); for older children (9-12 years old), the original parameters are followed to adapt to the eye movement abilities of children of different ages.

Claims

1. A full-spectrum health LED light source device with eye care function, characterized in that, The device includes a downward-illuminating circular front light source (1), an upward-illuminating circular backlight source (2), a circular central light source located in the center of the circular backlight source and illuminating upwards (3), and a housing (4) for the light source device. It also includes two types of white LEDs emitting different color temperatures and three types of red LEDs with different wavelength ranges. The white and red LEDs are installed on the PCB board of the three light sources according to a ratio calculated based on their spectral energy distribution. A lens is installed at the front end of the upward-illuminating circular central light source. The upward-illuminating circular central light source, located in the center of the circular backlight source, can work with the lens to make the light spot on the screen continuously change and move, thereby causing the eyeball to move accordingly. A 1060 aluminum surface is prepared using dual-beam interference lithography as the housing (4) for the light source device, possessing a highly hydrophobic self-cleaning function.

2. The full-spectrum health LED light source device with eye care function according to claim 1, characterized in that: The two white LEDs emitting different color temperatures are a first white LED with a color temperature of 4000K±200K and a second white LED with a color temperature of 5500K±200K, each with a power of 0.5W. The three red LEDs with different wavelength ranges are a first red LED with a peak wavelength range of 650-660nm, a second red LED with a peak wavelength range of 680-690nm, and a third red LED with a peak wavelength range of 730-740nm, each with a power of 0.5W.

3. The full-spectrum health LED light source device with eye care function according to claim 1, characterized in that: The downward-illuminating circular positive light source (1) is the first light source, with a diameter of 16cm, and the ratio of the first white light bulb, the second white light bulb, the first red light bulb, the second red light bulb, and the third red light bulb is between 5:5:1:1:1 and 15:15:1:1:1; the upward-illuminating annular backlight source (2) is the second light source, with a diameter of 16cm and an inner diameter of 13cm, and the ratio of the first white light bulb, the second white light bulb, the first red light bulb, the second red light bulb, and the third red light bulb is between 5:5:1:1:1 and 15:15:1:1:1; the upward-illuminating circular central light source (3) located in the center of the annular backlight source is the third light source, with a diameter of 12cm, and the ratio of the first white light bulb, the second white light bulb, the first red light bulb, the second red light bulb, and the third red light bulb is between 5:5:1:1:1 and 15:15:1:1:

1.

4. The full-spectrum health LED light source device with eye care function according to claim 1, characterized in that: The distance between the third light source and the screen (ceiling, wall, etc.) is 2-4m.

5. A full-spectrum health LED light source device with eye care function according to claim 1, characterized in that: The movement trajectory and size of the light spot change regularly with time and music. When the light spot moves, the movement trajectory is as follows: flashing up and down 4 times, flashing left and right 4 times, flashing diagonally from left to right and from right to left 4 times, flashing diagonally from right to left and from left to right 2 times, rotating clockwise 2 times, rotating counterclockwise 2 times, moving up and down 4 times, moving left and right 4 times, moving diagonally from left to right and from right to left 4 times, and moving diagonally from right to left and from left to right 4 times. When the light spot is in the center and does not move, the size of the light spot changes from large to small and from small to large 4 times. One round trip (size change) of the light spot is counted as one movement.

6. A full-spectrum health LED light source device with eye care function according to claim 1, characterized in that: The movement trajectory and size of the light spot change regularly over time and accompanied by music. When the light spot moves, the movement time along each flashing trajectory is 10 seconds, and the clockwise and counterclockwise circular rotation time is 5 seconds each. The movement time along the up, down, left, and right movement trajectories is 15 seconds each, and the movement time along the diagonal upper left and lower right and upper right and lower left is 18 seconds each. When the light spot is in the center and does not move, the time for the light spot to change from large to small or from small to large is 5 seconds.

7. A full-spectrum health LED light source device with eye care function according to claim 1, characterized in that: The hydrophobic angle of the surface of the housing (4) of the light source device is 167.6°, and the material is 1060 aluminum.

8. A housing (4) for a light source device as described in claim 7, characterized in that: Two-beam laser interference lithography, energy density of the two beams: 0.32 J / cm² 2 The exposure time was 7 seconds, followed by treatment with perfluorodecyltriethoxysilane. The etched sample was immersed in a 1 wt% perfluorodecyltriethoxysilane alcohol solution for 24 hours. After immersion, the sample was removed and placed in an oven at 120°C for 2 hours to form a stable superhydrophobic surface.

9. The application of a full-spectrum healthy LED light source as described in claims 2 and 3 in preventing myopia in daily lighting.

10. The application of a light source capable of inducing eye movement as described in claims 4-6 in eye care.

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