Eye light therapy system and device

Abstract

The application discloses an eye light therapy system and device, which comprises a light system including a light source module for emitting light, a reflection system for reflecting the light to the user's eyes, and an adjustment system for adjusting the position of the light source module in the light system and / or adjusting the position of the reflection system to adjust the object distance of the light source module. The application can also adjust the object distance of the light system during the process of the light system irradiating the eyes, so as to change the distance between the visual image seen by the user's eyes and the eyes, move the visual image seen by the user in the distance, adjust the ability of the user to see near and far, and improve the sensitivity of the human eye to near and far.

Description

Technical Field

[0001] This application belongs to the field of optical technology, specifically relating to an eye phototherapy system and device. Background Technology

[0002] Ocular phototherapy systems typically use light of specific wavelengths to irradiate the eyes to improve vision or address eye problems. The core principle of ocular phototherapy systems is to regulate eye cell function, promote repair, or inhibit disease progression through the thermal effect, biostimulation, or photochemical reaction of light.

[0003] In existing technologies, eye phototherapy systems generally only have the single function of irradiating the eyes, which cannot meet the needs of users. Summary of the Invention

[0004] This application aims to provide an ocular phototherapy system and device that at least addresses the problem that ocular phototherapy systems have only a single function.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose an ocular phototherapy system, comprising:

[0007] A lighting system, including a light source module for emitting light;

[0008] A reflective system for reflecting the light toward the user's eyes;

[0009] An adjustment system is used to adjust the position of the light source module in the illumination system and / or adjust the position of the reflection system to adjust the object distance of the light source module.

[0010] Secondly, embodiments of this application provide an ocular phototherapy device, comprising:

[0011] case;

[0012] The ocular phototherapy system as described in the first aspect.

[0013] In the embodiments of this application, the position of the light source module and / or the position of the reflection system in the illumination system are adjusted by adjusting the system, thereby adjusting the object distance of the light source module. In this way, the object distance of the illumination system can also be adjusted during the illumination process of the illumination system illuminating the eye, thereby changing the distance between the visual image seen by the user's eye and the eye. This allows the visual image seen by the user to move from near to far, which can adjust the user's ability to see near and far, and improve the sensitivity of the human eye to near and far distances.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of an ocular phototherapy system provided in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the structure of an ocular phototherapy system provided in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of another ocular phototherapy system provided in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of another ocular phototherapy system provided in an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of a dual-eye phototherapy system according to an embodiment of this application;

[0021] Figure 6 This is a schematic diagram of another binocular phototherapy system in the embodiments of this application;

[0022] Figure 7 This is a perspective view of the light source module in an embodiment of this application;

[0023] Figure 8 This is a front view of the light source module in an embodiment of this application;

[0024] Figure 9 This is a side view (side sectional view) of the light source module in the embodiment of this application.

[0025] Figure 10 This is a top view of the light source module in an embodiment of this application;

[0026] Figure 11 These are integrated package diagrams and exploded views of the light source module in the embodiments of this application;

[0027] Figure 12 This is a front view of the four-color LED beads in an embodiment of this application;

[0028] Figure 13 This is a side view of the four-color LED beads in an embodiment of this application;

[0029] Figure 14 This is an electrode structure diagram of the 4-color LED beads in the embodiments of this application;

[0030] Figure 15 This is the spectrum of the four-color LED beads in the embodiments of this application;

[0031] Figure 16 This is a schematic diagram illustrating how the combination of spectral modes in the embodiments of this application generates myopia defocus or hyperopia defocus;

[0032] Figure 17 This is a flowchart of the light source control in an embodiment of this application;

[0033] Figure 18 This is a schematic diagram of the ocular phototherapy system using a hybrid light source in an embodiment of this application;

[0034] Figure 19 This is a schematic diagram showing the power matching of the two light sources in an embodiment of this application;

[0035] Figure 20 This is an example diagram of a target luminescent pattern in an embodiment of this application;

[0036] Figure 21 This is an example diagram of another target luminescent pattern in the embodiments of this application;

[0037] Figure 22 This is an example image of a textured pattern in an embodiment of this application;

[0038] Figure 23 This is an example image without a textured pattern in the embodiments of this application;

[0039] Figure 24 This is an example diagram of the light emission patterns with different light emission positions for the left and right eyes in the embodiments of this application;

[0040] Figure 25 This is an example diagram of the left and right eyes with polarizers of different directions attached in the embodiments of this application;

[0041] Figure 26 This is a schematic diagram of center focus and peripheral myopia defocus in the embodiments of this application;

[0042] Figure 27 This is a schematic diagram of center focus and peripheral defocus in an embodiment of this application;

[0043] Figure 28 This is a schematic diagram of fixed focus or fixed defocus in the embodiments of this application;

[0044] Figure 29 This is a schematic diagram of the alternation of focusing and defocusing in an embodiment of this application;

[0045] Figure 30 This is a schematic diagram of the focus / defocus gradient change in an embodiment of this application;

[0046] Figure 31 This is a schematic diagram of the focus / defocus transition in the embodiments of this application;

[0047] Figure 32This is an example diagram of a matrix light source that achieves focusing and defocusing in the embodiments of this application. Detailed Implementation

[0048] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0049] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] Figure 1 This is a schematic diagram of the structure of an ocular phototherapy system provided in an embodiment of this application, as shown below. Figure 1 As shown, the ocular phototherapy system 100 includes:

[0053] The lighting system 10 includes a light source module for emitting light.

[0054] Reflection system 20, used to reflect the light to the user's eyes;

[0055] The adjustment system 30 is used to adjust the position of the light source module in the illumination system and / or adjust the position of the reflection system to adjust the object distance of the light source module.

[0056] The lighting system 10 includes a light source module for emitting light. The light source module can be any safe light source that can illuminate the eyes.

[0057] The adjustment system 30 can be any component capable of adjusting the position of the light source module in the illumination system 10 and / or adjusting the position of the reflection system 20, such as a motor. By adjusting the position of the light source module and / or the reflection system, the object distance of the light source module is changed, thereby adjusting the distance of the virtual image of the light source observed by the human eye. That is, changing the distance of the visual image relative to the human eye, so that the visual image seen by the user moves from near to far, thereby adjusting the ability to see near and far and improving the sensitivity of the human eye to distance. For example, there is a connection between the adjustment system 30 and the light source module of the illumination system 10, and the adjustment system 30 can drive the light source module to move based on this connection to change the object distance of the light source module; and / or, there is a connection between the adjustment system 30 and the reflection system 20, and the adjustment system 30 can drive the reflection system 20 to move based on this connection to change the object distance of the light source module.

[0058] The light source module in the illumination system 10 emits specific light rays, which illuminate the reflection system 20. The light rays are corrected by the reflection system 20 and then reflected into the user's eye, illuminating the retina. At this time, the virtual image of the light source, corrected by the reflection system 20, is perceived by the eye as being far in front of the eye, creating a telescopic effect. The visual image distance satisfies the object-image conjugate relation 1 / q + 1 / p = 1 / f in optics, where p represents the object distance, q represents the visual image distance, and f represents the focal length of the illumination system. By adjusting the object distance, a suitable telescopic distance can be selected for the user for illumination and training.

[0059] In some embodiments, the reflection system 20 can be any shapeable optical element, such as an off-axis reflection optical system, a freeform surface optical system, a prism system, a coaxial air guide system, or an optical waveguide system.

[0060] In some embodiments, the ocular phototherapy system can be monocular or binocular, that is, the ocular phototherapy system can be a monocular or binocular phototherapy system. Figure 1 The structure shown is a monocular phototherapy system. By using two of these monocular phototherapy systems, one for the left eye and one for the right eye, it can be used as a binocular phototherapy system.

[0061] The ocular phototherapy system provided in this application adjusts the position of the light source module and / or the position of the reflection system in the light system by adjusting the system, thereby adjusting the object distance of the light source module. In this way, the object distance of the light system can be adjusted during the process of the light system irradiating the eyes, thereby changing the distance between the visual image seen by the user's eyes and the eyes, so that the visual image seen by the user moves from near to far, which can adjust the user's ability to see near and far, and improve the sensitivity of the human eye to near and far distances.

[0062] In some embodiments of this application, the lighting system is any one of the following:

[0063] The lighting system includes the light source module, and the object distance is the distance between the light source module and the reflection system;

[0064] The lighting system includes the light source module and a reflector. The reflector is used to reflect the light emitted by the light source module to the reflection system. The object distance is the sum of the distance between the light source module and the reflector and the distance between the reflector and the reflection system.

[0065] The lighting system includes the light source module, a reflector, and a lens. The lens is located between the light source module and the reflector. The lens is used to shape the light emitted by the light source module. The reflector is used to reflect the light shaped by the lens to the reflection system. The object distance is the distance between the light source module and the lens.

[0066] Optical components such as reflectors and lenses can be added to lighting systems to assist in the shaping of lighting systems and product design.

[0067] Figure 2 This is a schematic diagram of the structure of an ocular phototherapy system provided in an embodiment of this application, as shown below. Figure 2 As shown, the ocular phototherapy system includes a light illumination system 10, a reflection system 20, and an adjustment system (…). Figure 2(Not shown in the image). The illumination system 10 includes a separate light source module 11, and the object distance p of the light source module 11 is the distance between the light source module 11 and the reflection system 20. The adjustment system can adjust the light source module 11 to move closer to or further away from the reflection system 20 to adjust the object distance p, thereby achieving the purpose of adjusting the visual image distance. For example, there is a connection between the adjustment system 30 and the light source module 11 of the illumination system 10. Based on this connection, the adjustment system 30 can move the light source module, causing the light source module 11 to move closer to or further away from the reflection system 20, thereby changing the object distance of the light source module 11; and / or, there is a connection between the adjustment system 30 and the reflection system 20. Based on this connection, the adjustment system 30 can move the reflection system 20, causing the reflection system 20 to move closer to or further away from the light source module 11, thereby changing the object distance of the light source module 11.

[0068] Figure 3 This is a schematic diagram of another ocular phototherapy system provided in an embodiment of this application, as shown below. Figure 3 As shown, the ocular phototherapy system includes a light illumination system 10, a reflection system 20, and an adjustment system (…). Figure 3 (Not shown in the image). The illumination system 10 includes a light source module 11 and a reflector 12. The object distance p of the light source module 11 is the sum of the distance between the light source module 11 and the reflector 12 and the distance between the reflector 12 and the reflection system 20. The adjustment system can adjust the light source module 11 to move closer to or further away from the reflection system 20 to adjust the object distance p, thereby achieving the purpose of adjusting the visual image distance. For example, there is a connection between the adjustment system 30 and the light source module of the illumination system 10. Based on this connection, the adjustment system 30 can move the light source module 11, causing the light source module 11 to move closer to or further away from the reflection system 20 to change the object distance of the light source module; and / or, there is a connection between the adjustment system 30 and the reflection system 20. Based on this connection, the adjustment system 30 can move the reflection system 20 and the reflector 12 together, causing the reflection system 20 to move closer to or further away from the user's eye to change the object distance of the light source module 11.

[0069] Figure 4 This is a schematic diagram of another ocular phototherapy system provided in an embodiment of this application, as shown below. Figure 4 As shown, the ocular phototherapy system includes a light illumination system 10, a reflection system 20, and an adjustment system (…). Figure 4(Not shown in the image). The illumination system includes a light source module 11, a reflector 12, and a lens 13. The object distance p of the light source module 11 is the distance between the light source module 11 and the lens 13. The adjustment system can adjust the light source module 11 to move closer to or further away from the lens 13 to adjust the object distance p, thereby achieving the purpose of adjusting the visual image distance. For example, there is a connection between the adjustment system 30 and the light source module of the illumination system 10. Based on this connection, the adjustment system 30 can move the light source module 11, causing the light source module 11 to move closer to or further away from the lens 13, thereby changing the object distance of the light source module 11; and / or, there is a connection between the adjustment system 30 and the reflection system 20. Based on this connection, the adjustment system 30 can move the reflection system 20, the reflector 12, and the lens 13, causing the lens 13 to move closer to or further away from the user's eye, thereby changing the object distance of the light source module 11.

[0070] In some embodiments of this application, the ocular phototherapy system includes a binocular phototherapy system;

[0071] Each monocular phototherapy system in the binocular phototherapy system includes its own reflex system;

[0072] The two monocular light therapy systems in the dual-eye light therapy system share the same light illumination system, or each monocular light therapy system in the dual-eye light therapy system includes its own light illumination system.

[0073] The dual-beam phototherapy system further includes a first beam-splitting optical element, which is used to split the light emitted by the light system into two beams of light in opposite directions, with each beam of light illuminating the reflection system of the single-beam phototherapy system.

[0074] The first beam-splitting optical element may include components such as prisms and beam splitters. The illumination system may employ a single or multiple emitters.

[0075] Figure 5 This is a schematic diagram of the structure of a dual-lens phototherapy system according to an embodiment of this application, as shown below. Figure 5As shown, two monocular phototherapy systems 100 share the same illumination system 10. Each monocular phototherapy system includes its own reflection system 20. The binocular phototherapy system also includes a first beam-splitting optical element 40, which splits the light emitted by the illumination system 10 into two beams of light in opposite directions. These two beams of light are reflected by their respective reflection systems 20 and enter the human eye to illuminate the retina. For example, each monocular phototherapy system includes its own adjustment system. There is a connection between the adjustment system and the reflection system 20 in each monocular phototherapy system. Based on this connection, the adjustment system can drive the corresponding reflection system 20 to move closer to or further away from the user's eye, thereby changing the object distance of the light source module 11. In this way, for users with different refractive errors in their left and right eyes, by changing the object distance p of their respective light sources, the refractive power of each eye can be matched, so that the left and right eyes can achieve corresponding clear virtual images.

[0076] Figure 6 This is a schematic diagram of another binocular phototherapy system in the embodiments of this application, as shown below. Figure 6 As shown, each of the two monocular phototherapy systems 100 has its own illumination system 10, and each monocular phototherapy system includes its own reflection system 20. The binocular phototherapy system also includes a first beam-splitting optical element 40, which splits the light emitted by the two illumination systems 10 into two beams of light in opposite directions. These two beams of light are reflected by their respective reflection systems 20 and enter the human eye to illuminate the retina. Optionally, each monocular phototherapy system includes its own adjustment system. There is a connection between the adjustment system and the reflection system 20 in each monocular phototherapy system. Based on this connection, the adjustment system can drive the corresponding reflection system 20 to move closer to or further away from the user's eye, thereby changing the object distance of the light source module 11. In this way, for users with different refractive errors in their left and right eyes, by changing the object distance p of their respective light sources, the monocular refractive power can be matched, so that the left and right eyes can achieve corresponding clear virtual images. Optionally, each monocular phototherapy system includes its own adjustment system. The adjustment system in each monocular phototherapy system is connected to its respective light source module. Based on this connection, the adjustment system can drive the corresponding light source module to move closer to or further away from the user's eye (or beam splitter) to change the object distance of the light source module. In this way, for users with different refractive errors in the left and right eyes, by changing the object distance p of the respective light source, the monocular refractive power can be matched, so that the left and right eyes can achieve corresponding visually clear virtual images.

[0077] In some embodiments of this application, the binocular phototherapy system further includes a rotation axis for adjusting the distance between the two monocular phototherapy systems. In the binocular phototherapy system, the distance between the two independent monocular phototherapy systems can be adjusted via the rotation axis between them to match the interpupillary distance of different users. In this case, the human eye perceives two virtual images of visual light sources viewed from the same distance.

[0078] Figure 7 This is a perspective view of the light source module in an embodiment of this application. Figure 8 This is a front view of the light source module in an embodiment of this application. Figure 9 This is a side view (side sectional view) of the light source module in the embodiment of this application. Figure 10 This is a top view of the light source module in an embodiment of this application. For example... Figures 7-10 As shown, the light source module includes a light source chip 111, a light source assembly 112, a shaping plate 113, and a photodetector 114.

[0079] In this process, the concentrated light emitted by the light source chip 111 illuminates the shaping plate 113. The light passing through the shaping plate 113 is shaped into dispersed light and emitted to the reflection system. The light reflected by the shaping plate 113 is monitored by the photodetector 114. The photodetector 114 is used to determine the output power of the light source based on the received reflected light.

[0080] Since current light sources are all point light sources emitting light from LED chips, if this light is shone directly onto the human eye, it will only produce a point image, posing a safety risk to the retina. To avoid this risk, customized light source modules can be used, such as... Figures 7-10As shown. By modifying the packaging of the light source, the stimulation of the light source to the human eye is reduced. The structure consists of a light source chip, components, a shaping plate, and a photodetector. The light source component 112 is a support for the light source chip, used to support the light source chip. The light source component is hollow rectangular or circular in shape, and is made of materials with good heat dissipation, such as copper or aluminum. The shaping plate 113 includes optical or non-optical components such as a beam homogenizer, diffuser, DOE (Diffractive Optical Elements), filter, and lens, which change the shape, spectral range, and emission direction of the light beam. The shaping plate 113 is located at the exit position of the light emitted by the light source chip 111. The light source chip 111 emits concentrated light that shines on the shaping plate 113. The light reflected back by the shaping plate 113 is monitored by the photodetector 114. The photodetector determines the output power of the light source (including the power of the direct light and the power of the reflected light) based on the power of the reflected light. The photodetector 114 uploads the output power of the light source in real time. The light (direct light) passing through the shaping plate 113 is shaped by the shaping plate 113, which changes the characteristics of the light source itself, such as concentrated energy, broad spectrum, and concentrated directionality, and emits it in a diffused form as a surface light source, reducing the harm of the light source shining into the eyes.

[0081] In some embodiments of this application, the shaping plate includes a 360nm high-pass filter; the 360nm high-pass filter is used to ensure the passage of spectra with wavelengths above 360nm. By making the surface of the filter a characteristic surface of the shaping plate, the filter has both filtering and shaping functions. By adding a 360nm high-pass filter, harmful spectra below 360nm can be blocked, while ensuring the normal passage of beneficial spectra above 360nm. Figure 11 These are integrated package diagrams and exploded views of the light source module in the embodiments of this application, such as... Figure 11 As shown, 1 represents an integrated package diagram, and 2 represents an exploded view. In the exploded view, the filter 3 is located on top of the light source assembly that houses the light source chip 111.

[0082] In some embodiments of this application, the light source chip includes a multi-color light source. The light source can be, for example, an LED bead. The light source module can include a customized LED bead integrating one or more light source chips. The light source chip can include dual-color LED beads, four-color LED beads, six-color LED beads, or eight-color LED beads, etc. Based on the inducing effect of color difference on visual control and the stimulating effect of different wavelengths on retinal cells, the light source chip uses customized multi-color LED beads to stimulate the retina by controlling different wavelengths of light, such as a 380nm wavelength light source producing myopia defocus and a 650nm wavelength light source producing hyperopia defocus. The light source chip can be an LED or other narrowband light source. By utilizing a combination of light sources (light sources of different colors) to generate a mixed-mode light irradiating the human eye, the human eye can simultaneously benefit from the eye responses induced by different light sources, thereby obtaining more effects.

[0083] In one exemplary embodiment, the multicolor light source includes: a red light source, a green light source, a blue light source, and a violet light source;

[0084] The peak wavelength of the purple light emitted by the purple light source is 380nm, with 95% of the energy located within the range of 360-400nm; the peak wavelength of the blue light emitted by the blue light source is 450nm, with 95% of the energy located within the range of 430-470nm; the peak wavelength of the green light emitted by the green light source is 510nm, with 95% of the energy located within the range of 480-540nm; and the peak wavelength of the red light emitted by the red light source is 650nm, with 95% of the energy located within the range of 630-670nm.

[0085] Figure 12 This is a front view of the four-color LED beads in the embodiment of this application. Figure 13 This is a side view of the four-color LED beads in an embodiment of this application. Figure 14 This is a diagram showing the electrode structure of the 4-color LED beads in an embodiment of this application. Figure 15 This is the spectral diagram of the four-color LED beads in the embodiments of this application. For example... Figure 12 As shown, the light source chip of a 4-color LED can be a square with a side length of 3.5mm (with an error within 0.14mm). Each LED includes two electrodes, positive and negative. A 4-color LED includes eight electrodes: 1, 2, 3, 4, 5, 6, 7, and 8. Figure 13 As shown, the base height of the 4-color LED bead is 0.85mm, with an error within 0.03mm. The overall height of the 4-color LED bead is 2.2±0.2mm, with an error within 0.09mm. Figure 14As shown, the squares and rectangles on either side of the light source chip represent electrodes, with the LED chip located within the middle rectangle. The electrodes at the four corners of the light source chip are squares, each 0.62mm in size with a tolerance within 0.02mm. The other electrodes are rectangles, each 0.62mm long with a tolerance within 0.02mm and 0.52mm wide with a tolerance within 0.02mm. The gap between adjacent electrodes is 0.32mm with a tolerance within 0.01mm. The gap between an electrode and the middle LED chip is 0.35mm with a tolerance within 0.01mm. The rectangle corresponding to the middle LED chip has a width of 1.35mm with a tolerance within 0.05mm. Figure 15 As shown, the four-color LED is an RGBV (red, green, blue, and purple) four-in-one LED. At a temperature of 25 degrees Celsius, the wavelength specifications are as follows: purple peak wavelength 380nm, 95% energy within 360-400nm; blue peak wavelength 450nm, 95% energy within 430-470nm; green peak wavelength 510nm, 95% energy within 480-540nm; and red peak wavelength 650nm, 95% energy within 630-670nm.

[0086] The spectral matching, structural parameters, and electronic parameters of multicolor LED beads are not limited to those described above and can be matched and modified according to actual use.

[0087] In some embodiments of this application, the emission mode of the multicolor light source includes emission from at least one light source. The emission mode of the multicolor light source is to control the emission of different light sources individually or simultaneously, such as RGBV emitting light individually, or RV, RB, and RGV emitting light simultaneously.

[0088] Figure 16 This is a schematic diagram illustrating how spectral mode combinations generate myopia defocus or hyperopia defocus in embodiments of this application. To improve the effect of phototherapy, corresponding combination modes are set at the back end, employing a complementary approach to adjust the proportion of different light sources perceived by the human eye while ensuring a constant power entering the eye. The simultaneous emission of multiple light sources in a multi-color light source emission mode corresponds to spectral mode combinations, such as red-blue combinations, red-violet combinations, etc. Figure 16 As shown, when the proportion of light sources with a wavelength of 380nm is greater than that with a wavelength of 650nm, myopic defocus occurs, inducing shortening of the axial length. Conversely, when the proportion of light sources with a wavelength of 380nm is less than that with a wavelength of 650nm, hyperopic defocus occurs, inducing elongation of the axial length.

[0089] In some embodiments of this application, the wavelength of the light source in the light source chip includes any one of 488nm, 532nm, 590nm, 630nm, 660nm, and 850nm. Regarding the wavelength of the light source, any wavelength can be used to determine the effect of different wavelengths on the retina, such as 488nm, 532nm, 590nm, 630nm, 660nm, 850nm, or a half-maximum bandwidth (FWHM) ± 20nm. FWHM is a parameter describing the spectrum; for example, 650nm ± 10nm, or 20nm, is the FWHM.

[0090] In some embodiments of this application, the control logic of the multicolor light source includes at least one of monochrome logic, sequential logic, combinational logic, and time-division logic, and each of the control logics corresponds to a lighting control mode.

[0091] Figure 17 This is a flowchart of the light source control in an embodiment of this application, such as... Figure 17 As shown, the eye phototherapy system also includes a light control module, a motion control module, a parameter control module, a light monitoring module, and a timing control module. The light control module is used to control different light control modes, the motion control module is used to control the adjustment of interpupillary distance, the parameter control module is used to control the parameters corresponding to different light control modes, the light monitoring module is used to monitor the light, and the timing control module is used to perform timing control. The light source is controlled via firmware. The control process includes: system operation and initialization of various control modules (including illumination control, motion control, parameter control, illumination monitoring, and timing control modules); switching illumination control modes; switching illumination control modes according to parameter control, with different illumination control modes pre-setting different color LED control logics, including single-color logic, sequential logic, combination logic, and time-division logic; using the default mode if no switching occurs; selecting the illumination channel and corresponding illumination power according to the illumination logic to enable illumination; continuously monitoring illumination through the illumination control module during system operation, turning off the illumination and shutting down the system if an abnormality is detected; and shutting down the system after the timer expires if the illumination is normal. For four-color LEDs, the illumination control module can use single-color, dual-color, or multi-color illumination based on the user's sensitivity to different spectral light sources and the different feedback from retinal cells, enabling more efficient phototherapy for the user's eyes.

[0092] Figure 18 This is a schematic diagram of the ocular phototherapy system using a hybrid light source in an embodiment of this application, as shown below. Figure 18 As shown, the light source module includes a coherent light source 115 and an incoherent light source 116;

[0093] The illumination system also includes a second beam-splitting optical element 14;

[0094] The light emitted by the coherent light source 115 is reflected by the second beam-splitting optical element 14 to the reflection system 20;

[0095] The light emitted by the incoherent light source 116 passes through the second beam-splitting optical element 14 and is projected onto the reflection system 20.

[0096] The second beam-splitting optical element may include a beam splitter, a prism, or a triangular mirror. The incoherent light source may be, for example, a light-emitting diode, or any other incoherent light source.

[0097] Besides multi-in-one packaged LED chips, a hybrid light source combined with the second beam-splitting optical element 14 can also be used. Light emitted from the coherent light source 115 is reflected by the second beam-splitting optical element 14 to a reflection system, and after reflection, it is projected onto the fundus. At this point, the human eye perceives coherent light. Light emitted from the incoherent light source 116 passes through the second beam-splitting optical element 14 and is reflected by the reflection system into the human eye. At this point, the human eye perceives incoherent light. The coherent light source 115 and the incoherent light source 116 are not limited to... Figure 18 The location shown. Figure 19 This is a schematic diagram of the power matching of the two light sources in an embodiment of this application, as shown below. Figure 19 As shown, the power of light source 2 (which can be an incoherent light source) can be reduced by increasing the power of light source 1 (which can be a coherent light source). The total power of the two light sources is fixed and is a preset value. 'a' represents the set value, i.e., the horizontal axis represents the set value. The set value can be, for example, a gear position. 'b' represents the power, i.e., the vertical axis represents the power.

[0098] Optionally, in addition to two light sources, more light sources can be used, such as three or more. One more light source can be added by adding a semi-reflective and semi-transparent optical element.

[0099] In some embodiments of this application, the light source module includes a panel light source, which emits light according to a target light emission pattern; the panel light source includes: an LED light source, an LCD backlight, or an OLED pixel light source.

[0100] Panel light sources include light-emitting panels, displays, or matrix light sources. Each light source chip in a panel light source can be a single light source or a combination of multiple light sources. The light emission modes of panel light sources include full brightness, half brightness, low brightness, fixed brightness, or alternating brightness.

[0101] While providing illumination, visual training can be conducted through the target luminous pattern to improve visual abilities. The target luminous pattern is formed by controlling the emission of light from each light source chip in the control panel's light source.

[0102] Figure 20 This is an example diagram of a target luminescent pattern in an embodiment of this application, such as... Figure 20 As shown, each square represents a light source chip. Based on this target luminous pattern, visual tracking ability can be trained. The light sources are lit sequentially in the order of 1, 2, 3, ..., with no restriction on the order, actively guiding the user to focus on the luminous point and training their visual tracking ability. For users with visual fusion or strabismus, the left eye follows 1, 2, 3..., and the right eye follows -1, -2, -3... When the images of the left and right eyes are in the same relatively equal position, they are in a fused state. Subsequently, the left and right eyes separate, and visual training is performed again through image fusion and image separation. This example is only used to illustrate that visual training can be conducted simultaneously with illumination.

[0103] Figure 21 This is an example diagram of another target emission pattern in an embodiment of this application. A single color can be fixed while other colors of light are illuminated, such as... Figure 21 As shown, when focusing on the green target, a ring of red light source is used for illumination, and at this time the power of the green light source is much lower than that of the red light source.

[0104] In some embodiments of this application, the target luminescent pattern includes a textured pattern or a textureless pattern.

[0105] Based on the influence of human visual contrast sensitivity, the following methods are used when using phototherapy for myopia: Figure 22 The textured pattern shown, when projected onto the retina, creates contrast-induced visual guidance in the human eye, which can improve myopia. Conversely, using a pattern like... Figure 23 The textureless pattern shown, when irradiated onto the retina, produces a visual guidance effect without contrast, which can improve farsightedness when applied to people with hyperopia. Similarly, patterns such as black and white stripes, black background with white text, or white background with black text can be used. By controlling the ratio of black to white areas, the refractive power can be controlled. When the black area is larger than the white area, it is suitable for nearsighted users to improve their nearsightedness, and when the white area is larger than the black area, it is suitable for farsighted users to improve their farsightedness.

[0106] In a dual-eye phototherapy system, the following can be used: Figure 24 The luminous pattern shown causes the light source to emit light from different positions in the left and right eyes, creating parallax and enhancing the human eye's ability to perceive depth; alternatively, a similar approach could be used. Figure 25 The method shown involves attaching polarizers in different directions to the left and right eyes to enhance the human eye's ability to perceive depth.

[0107] In some embodiments of this application, the target focusing / defocusing mode is achieved by changing the object distance of each light source in the panel light source.

[0108] Figure 26 This is a schematic diagram of center focus and peripheral myopia defocus in an embodiment of this application. Figure 27This is a schematic diagram illustrating center focus and peripheral defocus in an embodiment of this application. For example... Figure 26 and Figure 27 As shown, by changing the object distance *p* of each light source chip, a state of central focus and peripheral defocus can be achieved. During phototherapy, central focus is used for fixation to maintain visual direction, while peripheral defocus induces shortening or elongation of the eye axis. This ensures effectiveness while effectively controlling the location of light on the retina.

[0109] Similarly, the following can be adopted: Figure 28 The fixed focus or fixed defocus shown, such as Figure 29 The alternation of focus and defocus shown is as follows: Figure 30 The focus / defocus gradient change shown is as follows: Figure 31 The focus and defocus gradients, or focus and defocus diffusion methods shown, generate the ability to induce focus and defocus. Similarly, the entire light source matrix can be positioned in a fixed position for illumination in a single focus and defocus mode as described above, or it can be vibrated or moved to change the focus and defocus positions, achieving randomly changing visual guidance.

[0110] It should be noted that each light source point (light source chip) in the panel light source can achieve random focusing or defocusing states, and is not limited to... Figures 28-31 The focus and defocus modes shown are as follows: For example, if the panel light source is a 3×3 matrix light source, including light source points 1, 2, 3, 4, 5, 6, 7, 8, and 9, it can achieve focusing on light source points 1, 3, 5, 7, and 9 and defocusing on light source points 2, 4, 6, and 8, or focusing on light source point 1 and defocusing on light source points 2, 3, 4, 5, 6, 7, 8, and 9, and so on.

[0111] Matrix light sources can achieve focus or defocus states at different positions. Figure 32 This is an example diagram of a matrix light source used for focusing and defocusing in embodiments of this application, such as... Figure 32 As shown, black indicates focus and white indicates defocus. The ring array of light sources for focusing and the ring array of light sources for defocusing alternate, and the amount of defocus can be adjusted. This can achieve the above-mentioned focus and defocus modes, such as equal focus and defocus from the center to the edge, or gradual focus and defocus. Figure 32 The ring array light source shown is just an example; other forms of light sources can also be used to achieve different focusing and defocusing modes.

[0112] This application also provides an ocular phototherapy device, which includes a housing and the ocular phototherapy system described in the foregoing embodiments.

[0113] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0114] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An ocular phototherapy system, characterized in that, include: A lighting system, including a light source module for emitting light; A reflective system for reflecting the light toward the user's eyes; An adjustment system is connected to the reflection system. The adjustment system moves the reflection system based on the connection to adjust the object distance of the light source module. The light source module includes: a light source chip, a light source assembly, a shaping plate, and a photodetector; The shaping plate is used to shape and reflect the concentrated light emitted by the light source chip. By shaping, the characteristics of the light source itself, such as concentrated energy, broad spectrum, and concentrated direction, are changed, and the light is emitted in a divergent manner in the form of a surface light source. The concentrated light emitted by the light source chip shines on the shaping plate, and the light passing through the shaping plate is shaped into dispersed light and emitted into the reflection system. The light reflected by the shaping plate is monitored by the photodetector. The photodetector is used to determine the output power of the light source based on the received reflected light; The light source chip includes a multi-color light source, which includes: a red light source, a green light source, a blue light source, and a purple light source; The peak wavelength of the purple light emitted by the purple light source is 380nm, with 95% of the energy located within the 360-400nm range; the peak wavelength of the blue light emitted by the blue light source is 450nm, with 95% of the energy located within the 430-470nm range; the peak wavelength of the green light emitted by the green light source is 510nm, with 95% of the energy located within the 480-540nm range; and the peak wavelength of the red light emitted by the red light source is 650nm, with 95% of the energy located within the 630-670nm range. In a combination of red and purple light sources, myopic defocus occurs when the proportion of light source with a wavelength of 380nm is greater than that with a wavelength of 650nm; or, hyperopic defocus occurs when the proportion of light source with a wavelength of 380nm is less than that with a wavelength of 650nm.

2. The system according to claim 1, characterized in that, The reflection system includes: off-axis reflection optical system, freeform surface optical system, prism system, coaxial air guide system or optical waveguide system.

3. The system according to claim 1, characterized in that, The lighting system is any one of the following: The lighting system includes the light source module, and the object distance is the distance between the light source module and the reflection system; The lighting system includes the light source module and a reflector. The reflector is used to reflect the light emitted by the light source module to the reflection system. The object distance is the sum of the distance between the light source module and the reflector and the distance between the reflector and the reflection system. The lighting system includes the light source module, a reflector, and a lens. The lens is located between the light source module and the reflector. The lens is used to shape the light emitted by the light source module. The reflector is used to reflect the light shaped by the lens to the reflection system. The object distance is the distance between the light source module and the lens.

4. The system according to claim 1, characterized in that, The ocular phototherapy system includes a dual-lens phototherapy system; Each monocular phototherapy system in the binocular phototherapy system includes its own reflex system; The two monocular light therapy systems in the dual-eye light therapy system share the same light illumination system, or each monocular light therapy system in the dual-eye light therapy system includes its own light illumination system. The dual-beam phototherapy system further includes a first beam-splitting optical element, which is used to split the light emitted by the light system into two beams of light in opposite directions, with each beam of light illuminating the reflection system of the single-beam phototherapy system.

5. The system according to claim 4, characterized in that, The dual-eye phototherapy system also includes a rotating axis for adjusting the spacing between the two single-eye phototherapy systems.

6. The system according to claim 1, characterized in that, The shaping plate includes a 360nm high-pass filter; The 360nm high-pass filter is used to ensure that wavelengths above 360nm can pass through.

7. The system according to claim 1, characterized in that, The wavelength of the light source in the light source chip includes any one of the following: 488nm, 532nm, 590nm, 630nm, 660nm, and 850nm.

8. The system according to claim 1, characterized in that, The control logic of the multicolor light source includes at least one of monochrome logic, sequential logic, combinational logic, and time-division logic, and each of the control logics corresponds to a lighting control mode.

9. The system according to claim 1, characterized in that, The light source module includes a panel light source, which emits light according to the target light emission pattern.

10. The system according to claim 9, characterized in that, The target focusing / defocusing mode is achieved by changing the object distance of each light source in the panel light source.

11. An eye phototherapy device, characterized in that, include: case; The ocular phototherapy system according to any one of claims 1-10.

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