Myopia illumination system, myopia illumination apparatus, and control method thereof

Abstract

Provided are a myopia illumination system (100), a myopia illumination device (1400), and a control method (1600) thereof. The myopia illumination system (100) comprises: a broad-spectrum light source (1) configured for emitting a broad-spectrum light; and a projection system (3) configured for projecting the broad-spectrum light to the eyes of a user. The broad-spectrum light source (1) can improve irradiation safety and avoid the risk of high-power stimulation of the fundus.

Description

Myopia illumination system, myopia illumination device and control method thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed on January 26, 2024, with application number 202420201949.7 and title “A myopia lighting system”; and the Chinese patent application filed on April 16, 2024, with application number 202410456292.3 and title “A myopia lighting system, myopia lighting device and control method thereof”. Technical Field

[0003] The present application generally relates to the technical field of vision prevention and control devices. More specifically, the present application relates to a myopia illumination system, a myopia illumination device and a control method thereof. Background Art

[0004] Axial length growth is one of the main factors causing myopia in the human eye, especially for adolescents who are in a period of rapid growth. Studies have shown that direct irradiation of the retina with 650nm long-wave red light can effectively inhibit the growth of axial length. In addition, studies have also shown that irradiation of the fundus retina with a light source of appropriate power, appropriate time, and specific wavelength can promote choroidal blood flow under the retina, improve the state of choroidal hypoxia, and even choroidal thickening, achieving the effect of preventing and treating myopia. Therefore, irradiating the retina with a light source of a specific wavelength has a positive effect on the prevention and control of myopia in adolescents.

[0005] Existing photoreceptors usually use red light source laser diodes LD. LD has monochromaticity, coherence, directionality and collimation. These characteristics make people at risk of high-power stimulation of the fundus when using the photoreceptor. In addition, when using LD, there is a phenomenon of wavelength shift, which makes the light of the expected wavelength unable to illuminate the fundus. Furthermore, when the human eye looks directly at the light source or observes the fundus light spot after lens transformation, the human eye will adjust the fovea of ​​the eye to face the light source itself. This will cause the energy of the light spot to be concentrated in the fovea of ​​the macula, which is the most photosensitizing position, causing strong stimulation to the user's eyes and even causing retinal damage.

[0006] In view of this, it is desirable to provide a novel myopia illumination system that can effectively control the light and / or light spot that is intended to be irradiated to the fundus, thereby avoiding the risk of high-power irritation to the fundus. Furthermore, it is also desirable to be able to effectively control the wavelength of light that is intended to be irradiated to the fundus.

[0007] Summary of the Invention

[0008] In order to at least solve one or more of the technical problems mentioned above, the present application proposes a myopia lighting system.

[0009] In a first aspect, the present application provides a myopia lighting system, comprising: a broad-spectrum light source for emitting broad-spectrum light; and a projection system for projecting the broad-spectrum light onto a user's eyes.

[0010] In some embodiments, the myopia lighting system further includes: a beam shaping system for shaping the broad spectrum light to form an annular light; and the projection system for projecting the annular light onto the user's eyes to form an annular light spot.

[0011] In some embodiments, the beam shaping system includes: a substrate including an annular light-transmitting portion and an opaque portion located at the center of the annular light-transmitting portion; or the beam shaping system includes: a spectrum shaper including an annular light-transmitting portion and an opaque portion located at the center of the annular light-transmitting portion.

[0012] In some embodiments, the myopia lighting system further includes: an optotype system for generating light of an optotype pattern to be projected onto the user's eyes together with the annular light.

[0013] In some embodiments, the sight mark system includes: a sight mark transmissive portion disposed in a spectrum shaper in the beam shaping system, the sight mark transmissive portion being located at the center of an opaque portion of the spectrum shaper and configured to transmit a portion of the broad spectrum light to form a ring-shaped light beam with a sight mark pattern at the center.

[0014] In some embodiments, the sight mark system includes: a sight mark light source and a spectroscope, the output light path of the sight mark light source coincides with the first light path of the spectroscope, and the second light path of the spectroscope coincides with the propagation light path of the annular light; wherein the first light path is one of the reflected light path and the projected light path, the second light path is the other of the reflected light path and the projected light path that is different from the first light path, and the position where the sight mark light output by the sight mark light source is projected onto the user's eye is located at the center of the annular light spot.

[0015] In some embodiments, the myopia illumination system includes at least one of the following features (1) to (3): (1) the material of the annular light-transmitting portion includes any one of the following: glass, crystal, plastic, resin; (2) the material of the opaque portion is opaque material; (3) the opaque portion is made of the same material as the annular light-transmitting portion but is treated to be opaque.

[0016] In some embodiments, the opaque portion includes: black acrylic; or the opaque treatment includes: sandblasting, painting, or pasting a black dot annular light-transmitting film.

[0017] In some embodiments, the size of the annular spot satisfies any of the following conditions: the annular width k of the annular spot is 0.0038 mm-3 mm, and the distance r1 from the center of the spot to the center line of the ring is 0.0038 mm-3 mm; the inner diameter of the annular spot is between 0.0076 mm and 6 mm; the inner diameter d1 of the annular spot is 1.5 mm, and the outer diameter d2 is 2.5 mm; the inner diameter d1 of the annular spot is 2.5 mm, and the outer diameter d2 is 5.5 mm; or the inner diameter d1 of the annular spot is 1.5 mm, and the outer diameter d2 is 5.5 mm.

[0018] In some embodiments, the spectral range of the broad spectrum light source is a spectral range covering any spectral cutoff width within the range of 300 nm-700 nm.

[0019] In some embodiments, the broad spectrum light source includes at least one of an LED lamp, an incandescent lamp, and a fluorescent lamp.

[0020] In some embodiments, the myopia lighting system further includes a spectrum shaping system for shaping the spectrum of the broad spectrum light to form light with a specified spectrum; and the projection system is used to project the light with the specified spectrum into the user's eyes.

[0021] In some embodiments, the spectrum shaping system includes one or more spectrum shapers, and the spectrum range of one or more of the spectrum shapers satisfies any of the following conditions: a spectrum cutoff width of 5 nm to 60 nm, a center wavelength selected from any wavelength between 360 nm to 400 nm and 640 nm to 700 nm; a low-pass cutoff range of approximately 640 nm to 660 nm, and a high-pass cutoff range of approximately 670 nm to 700 nm; or a low-pass cutoff range of approximately 360 nm to 375 nm, and a high-pass cutoff range of approximately 385 nm to 400 nm.

[0022] In some embodiments, the spectrum shaper includes any one or more of the following or a combination thereof: a filter; a transmissive grating filter; a reflective grating filter; a prism; a lens; a liquid crystal spectral transmission plate; or a spectral absorber.

[0023] In some embodiments, the spectral characteristics of the spectrum shaper include any of the following: high pass; low pass; band pass; or multi-band pass.

[0024] In some embodiments, the myopia illumination system further includes a color temperature adjuster configured to transmit light having a specified color temperature range to adjust the color temperature of the light projected onto the user's fundus. Preferably, the color temperature adjuster is a warm light transmissive plate, and the specified color temperature range is approximately 3500K-5000K.

[0025] In some embodiments, the myopia lighting system further includes a light diffuser, wherein the smooth surface of the light diffuser faces the broad spectrum light source, and the rough surface of the light diffuser faces the user's eyes.

[0026] In some embodiments, the distance between the light homogenizing plate and the broad spectrum light source is 0 mm to 1 mm.

[0027] In some embodiments, the myopia lighting system further includes a power monitor for monitoring the emission power of the wide spectrum light source to control it within a predetermined range.

[0028] In some embodiments, the power monitor receives light emitted from the broad spectrum light source and reflected by the smooth surface of the light diffuser to achieve monitoring.

[0029] In some embodiments, the predetermined range is 0.1 mW-1 W.

[0030] In some embodiments, the projection system includes a first aperture, an illumination lens, a second aperture and a projection lens arranged in sequence along the optical path, the second aperture is close to the illumination lens, the first aperture is optically conjugate with the ocular surface entrance position of the user's eye; the second aperture is optically conjugate with the fundus light spot of the user's eye; the eye entrance power of the myopia illumination system is determined based on one or more of the following factors: the light waist size at the ocular surface entrance position, the size of the fundus light spot, and the output power of the wide-spectrum light source.

[0031] In some embodiments, in a myopia lighting system, when the light waist diameter does not exceed a specified threshold, the power entering the eye is equal to the output power of the wide-spectrum light source; or when the light waist diameter is greater than a specified threshold, the power entering the eye is determined based on the power distribution of the output power of the wide-spectrum light source and the size of the fundus light spot.

[0032] In some embodiments, the specified threshold is 2.5 mm ± 0.5 mm.

[0033] In a second aspect, the present application provides a myopia lighting device, comprising: a myopia lighting system as described in any one of the first aspects.

[0034] In some embodiments, the inner diameter of the annular light spot output by the myopia lighting system is adjusted based on measurement data of the user's eyes.

[0035] In some embodiments, the myopia lighting device further includes: a power controller, which is communicatively connected to an external eye measurement device, and is used to obtain measurement data of the user's eyes, and based on it, controls the output power of the wide-spectrum light source to a specified output power or one of multiple preset output powers, and updates the specified output power or the preset output power.

[0036] In some embodiments, the myopia lighting device further includes: a left eyepiece barrel and a right eyepiece barrel, each of the left eyepiece barrel and the right eyepiece barrel is provided with a myopia lighting system, and the left eyepiece barrel and the right eyepiece barrel are connected by a distance adjuster, and the distance adjuster is used to adjust the distance between the left eyepiece barrel and the right eyepiece barrel to adapt to different pupil distances.

[0037] In some embodiments, the myopia lighting device further includes: a spacing controller, which is connected to the spacing adjuster and is used to control the spacing adjuster to adjust to a specified gear position or to cyclically move in a predetermined pattern.

[0038] In some embodiments, a 3D camera device is provided on the left eyepiece barrel and / or the right eyepiece barrel for collecting pupil information of the user.

[0039] In some embodiments, the myopia lighting device further includes: an optical axis controller and a mechanical adjuster; the optical axis controller is respectively connected to the mechanical adjuster and the 3D camera device, and is used to control the mechanical adjuster to adjust the axis of the optical path of the myopia lighting system according to pupil information.

[0040] In some embodiments, the myopia lighting device further includes: a shaping controller; the shaping controller is connected to the 3D camera device and the beam shaping system respectively, and is used to control the beam shaping system according to pupil information to form a ring-shaped light entering the eye with a beam waist diameter that matches the pupil size.

[0041] In some embodiments, the device data of the myopia illumination device is centrally managed by a device management platform, and the myopia illumination device and the device management platform exchange data through wireless communication.

[0042] In some embodiments, a vibration motor is provided on the housing of the myopia illumination device, which is activated when the myopia illumination system is in operation.

[0043] In a third aspect, the present application provides a control method for a myopia lighting device, which includes: a wide-spectrum light source, a beam shaping system, a projection system, and a shaping controller, wherein the wide-spectrum light emitted by the wide-spectrum light source is shaped by the beam shaping system, and the shaped annular light is projected onto the user's eyes by the projection system to form an annular light spot; the shaping controller performs the following control method, which includes: obtaining measurement data of the user's eyes; determining the diameter of the user's fovea based on the measurement data; and controlling the beam shaping system to shape the wide-spectrum light into a specified annular light, and the inner diameter of the specified annular light is consistent with the diameter of the user's fovea.

[0044] In some embodiments, the myopia lighting device further includes: a power controller. After obtaining measurement data of the user's eyes, the power controller further executes the following control method, which includes: controlling the output power of the wide-spectrum light source according to the measurement data so that it is a specified output power or one of multiple preset output powers; and / or, updating the specified output power or preset output power based on the measurement data, wherein the measurement data includes measurement data obtained in several cycles.

[0045] In some embodiments, the myopia lighting device also includes: a left eyepiece barrel, a right eyepiece barrel, a distance adjuster arranged between the left eyepiece barrel and the right eyepiece barrel, and a distance controller; the distance controller also executes the following control method, which includes: according to the user's pupil distance, controlling the distance adjuster to adjust to a specified gear or to cyclically move in a predetermined pattern.

[0046] In some embodiments, the myopia lighting device also includes: a mechanical adjuster for adjusting the axis of the optical path of the myopia lighting system and an optical axis controller; the optical axis controller also executes the following control method, which includes: controlling the mechanical adjuster to adjust the axis of the optical path of the myopia lighting system according to the user's pupil information so that it is aligned with the user's pupil center.

[0047] In some embodiments, the myopia lighting device also includes: an optotype system for generating light of an optotype pattern to be projected onto the user's eyes together with the annular light; the optical axis controller also executes the following control method, which includes: controlling the mechanical adjuster to adjust the light direction of the optotype pattern according to the user's pupil information so that it is aligned with the user's pupil center.

[0048] In some embodiments, the sight mark system includes: a sight mark light source and a spectroscope, wherein the output light path of the sight mark light source coincides with the first light path of the spectroscope, and the second light path of the spectroscope coincides with the propagation light path of the annular light; the optical axis controller also executes the following control method, which includes: controlling the mechanical adjuster to adjust one or more of the following parameters according to the user's pupil information: the position of the sight mark light source, the position of the spectroscope, and the angle of the spectroscope.

[0049] In some embodiments, the myopia lighting device further includes: a left eyepiece barrel and a right eyepiece barrel, each of which is provided with a myopia lighting system; after obtaining the measurement data of the user's eyes, the following control method is also executed, which includes: according to the measurement data, controlling one or both of the myopia lighting systems in the left eyepiece barrel and the right eyepiece barrel to turn on; and / or, according to the measurement data, controlling the turn-on time of the myopia lighting systems in the left eyepiece barrel and the right eyepiece barrel respectively; and / or, according to the measurement data, controlling the output power of the myopia lighting systems in the left eyepiece barrel and the right eyepiece barrel respectively; wherein the measurement data includes the myopia degree and / or eye axis information of the user's eyes.

[0050] According to the myopia illumination system provided above, it uses a wide-spectrum light source to improve illumination safety and avoid the risk of high-power stimulation of the fundus. In some embodiments, the wide-spectrum light is shaped by a beam shaping system, so that the annular light can be irradiated to the eye to form an annular light spot, thereby avoiding the position of the fovea of ​​the eye and improving illumination safety. In some embodiments, by designing the size of the annular light spot, it can adapt to the size of the human pupil and the center of the macula, thereby improving illumination efficiency. Furthermore, in some embodiments, the wide-spectrum light source is at least one of an LED lamp, an incandescent lamp, and a fluorescent lamp, which improves safety and effectiveness for the human eye. Furthermore, in some embodiments, the spectrum shaping system is also used to spectrally shape the wide-spectrum light, so that light of a selected wavelength range can be irradiated to the fundus, thereby achieving the desired effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0052] FIG1 shows an exemplary structural diagram of a myopia lighting system according to some embodiments of the present application;

[0053] FIG2 illustrates an exemplary implementation of a beam shaper according to some embodiments of the present application;

[0054] FIG3 shows the distribution of different tissue regions of the fundus;

[0055] FIG4 shows a schematic diagram of an annular light spot according to some embodiments of the present application;

[0056] FIG5 is a schematic diagram showing an annular light spot with a sight mark pattern according to some embodiments of the present application;

[0057] FIG6 shows an exemplary structural diagram of a myopia lighting system according to some embodiments of the present application;

[0058] FIG7 shows an exemplary structural diagram of a myopia lighting system according to other embodiments of the present application;

[0059] Figure 8a shows the use of filters to implement a spectrum shaper;

[0060] FIG8 b shows a spectrum shaper implemented using a penetrating grating filter;

[0061] FIG8 c shows a spectrum shaper implemented using a reflective grating filter;

[0062] FIG9 shows a spectrum shaping schematic diagram of a spectrum shaper according to some embodiments of the present application;

[0063] FIG10 illustrates an exemplary implementation of a spectrum shaping system including a plurality of spectrum shapers according to some embodiments of the present application;

[0064] FIG11 shows a spectrum shaping schematic diagram of a spectrum shaper according to some other embodiments of the present application;

[0065] FIG12 shows an exemplary structural diagram of a myopia lighting system according to other embodiments of the present application;

[0066] FIG13 a shows a schematic diagram of a light beam waist according to some embodiments of the present application;

[0067] FIG13 b shows a schematic diagram of a light beam waist according to some other embodiments of the present application;

[0068] FIG14 shows a schematic structural diagram of a myopia illumination device according to some embodiments of the present application;

[0069] FIG15 is a schematic diagram showing a comparison of power distribution of a vibration motor before and after operation according to some embodiments of the present application;

[0070] FIG16 shows an exemplary flow chart of a method for controlling a myopia illumination device according to some embodiments of the present application;

[0071] FIG17 shows an exemplary flowchart of a method for controlling a myopia lighting device according to other embodiments of the present application. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0073] It should be understood that the terms "include" and "comprising" used in the description and claims of this application indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0074] It should also be understood that the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this specification and claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term "and / or" as used in this specification and claims refers to any and all possible combinations of one or more of the associated listed items, including and including these combinations.

[0075] The specific implementation of the present application will be described in detail below with reference to the accompanying drawings.

[0076] To avoid the potential risks associated with laser diodes (LDs), the disclosed embodiments utilize a broad-spectrum light source instead of a narrow-spectrum LD, thereby reducing the risk of high-power irritation to the fundus. Specifically, this application provides a myopia illumination system comprising: a broad-spectrum light source for emitting broad-spectrum light; and a projection system for projecting the broad-spectrum light onto the user's eyes. Based on this basic myopia illumination system, this disclosure provides numerous embodiments to further optimize the system's functionality and effectiveness.

[0077] Figure 1 shows an exemplary structure of a myopia illumination system 100 according to some embodiments of the present application. As shown, the myopia illumination system 100 may include a broadband light source 1, a beam shaping system 2, and a projection system 3. The broadband light source 1 is configured to emit broadband light. The beam shaping system 2 is configured to shape the broadband light into an annular light pattern. The projection system 3 is configured to project the annular light pattern onto the user's eye, forming an annular light spot.

[0078] The wide-spectrum light source 1 can be set at the entrance end of the light transmission channel to emit wide-spectrum light. In some embodiments, the spectral range of the wide-spectrum light source 1 can be a spectral range covering any spectral cutoff width in the range of 300nm-700nm. In one example, the spectral range of the wide-spectrum light source is 500nm-800nm, which covers the range of 500nm-700nm. The use of a wide-spectrum light source can provide a rich spectral resource for the myopia lighting system, making it convenient to select light of the desired spectrum to irradiate the fundus retina to achieve the desired effect. In some embodiments, the wide-spectrum light source 1 can include but is not limited to light-emitting diodes (LEDs), incandescent lamps, fluorescent lamps, etc. The emission power of the wide-spectrum light source 1 can be approximately 0.1mW-1W, and the output power before the eye is approximately 0.1mW-15mW. By adopting the above-mentioned light source and controlling the output power before the eye, the safety of light irradiation can be improved during the use of the myopia lighting system.

[0079] The beam shaping system 2 is used to shape the broad-spectrum light emitted by the broad-spectrum light source 1 into a ring-shaped beam. The broad-spectrum light source 1 can typically be considered a point light source or, after homogenization, a surface light source. The broad-spectrum light it emits is typically circular in shape. The beam shaping system 2 can be used to adjust the circular beam into a desired shape, such as a ring-shaped beam, so that it can be directed toward the user's eyes. The specific implementation of the beam shaping system is described below.

[0080] The projection system 3 is used to project the shaped annular light onto the user's eyes, such as the fundus, to form an annular light spot thereon. The projection system 3 can be implemented in a variety of ways.

[0081] In some embodiments, the projection system 3 may include an illumination lens 31 and a projection lens 32. The illumination lens 31 may be disposed on the light-emitting side of the wide-spectrum light source 1 to collect light emitted by the wide-spectrum light source 1 and project the light onto the projection lens 32. The projection lens 32 may be spaced apart from the illumination lens 31 to project the light emitted by the illumination lens 31 onto the user's pupil 10.

[0082] In the present application, a lens refers to an optical element made of a transparent material whose surface is a part of a spherical surface. "Illumination" and "projection" are functional descriptions, and their specific implementation can be a lens group consisting of a lens or multiple lenses. The illumination lens and the projection lens can form a system structure of Kohler illumination. Those skilled in the art will understand that other methods can also be used to implement the projection system, such as critical illumination projection, optical mirror projection, optical waveguide projection, AR / VR and other projection systems, or lighting systems such as direct light source lighting, LED desk lamp lighting, indoor and outdoor lighting, etc. However, the inventive concept of the present application is not this, so a detailed description of the projection system is omitted.

[0083] Thus, the myopia illumination system provided above employs a broad-spectrum light source and uses a beam shaping system to shape the broad-spectrum light. This allows the ring-shaped light to illuminate the user's eyes, forming a circular spot, thereby avoiding the fovea and improving illumination safety. In some embodiments, the broad-spectrum light source employs an LED, which can improve safety and effectiveness for the human eye.

[0084] As mentioned previously, a beam shaping system can shape a broad spectrum of light into a specific beam shape, such as a ring-shaped beam. A beam shaping system can include one or more beam shapers, which can be used to create light of various shapes and specifications. Beam shapers can be implemented in a variety of ways.

[0085] Fig. 2 shows an exemplary implementation of a beam shaper according to some embodiments of the present application. In this embodiment, the beam shaper can shape an incident circular light into an annular light.

[0086] As shown in the figure, the beam shaper 20 includes a substrate 21, which includes an annular light-transmitting portion 211 and an opaque portion 212 located at the center of the annular light-transmitting portion. When a circular light beam is incident on the substrate 21, the light beam only passes through the annular light-transmitting portion 211, thereby forming an annular light beam.

[0087] In other embodiments, the beam shaper 20 can also perform spectrum shaping functions. The beam shaper 20 can also be understood as a spectrum shaper, such as a filter. Spectral shaping will be described in detail later. Referring to the beam shaper shown in FIG2 , this spectrum shaper can also include an annular light-transmitting portion and an opaque portion located at the center of the annular light-transmitting portion. In some embodiments, the opaque portion can be circular or have other shapes, such as a hexagon or octagon. As an example, the opaque portion in the beam shaper 20 is preferably circular to match the shape of the fovea.

[0088] The material of the annular light-transmitting portion may include any of the following: glass, crystal, plastic, resin. Furthermore, the plastic / resin may include any of the following: acrylic PMMA, polystyrene PS, cycloolefin copolymer COC, cycloolefin copolymer COP, rigid polyethylene terephthalate PET, polyvinyl chloride PVC, polycarbonate PC. It should be noted that the above materials are only some of the examples provided in this application, and other plastic or resin materials may also be used in actual applications, which are not listed here one by one. The material of the opaque portion is an opaque material, or the opaque portion is the same material as the annular light-transmitting portion but has been subjected to a light-proof treatment, such as sandblasting or painting, and the treated surface is opaque.

[0089] In one example, the beam shaper 20 can be constructed from a transparent acrylic substrate with a circular groove cut out in the center, and then embedded with opaque black acrylic that conforms to the groove. Similarly, the spectrum shaper can be constructed from a circular groove cut out in the center, and then embedded with opaque black acrylic that conforms to the groove.

[0090] In another example, the beam shaper 20 can be constructed from a transparent acrylic plate as its substrate. The central circular area can be sandblasted or painted, or a black dot annular transparent film can be attached to the center, rendering the circular surface opaque. Similarly, the spectrum shaper can be sandblasted, painted, or affixed with a black dot annular transparent film to achieve opacity.

[0091] In another example, the beam shaper 20 is made of hard PET, PVC, or PC as a substrate, and the central circular area is sandblasted or painted, or a black dot annular transparent film is pasted in the center, and the treated surface is opaque.

[0092] The annular light formed after beam shaping can be irradiated to the user's eyes through the projection system to form an annular light spot, thereby avoiding the fovea of ​​the eyes and improving the safety of irradiation.

[0093] Figure 3 shows the distribution of different tissue regions in the fundus. As can be seen from Figure 3, the diameter of the fovea is about 1.5 mm, the diameter of the parafovea is about 2.5 mm, and the diameter of the perifovea is about 5.5 mm. The figure further shows the size of the foveal avascular zone (FAZ), which has a diameter of about 0.5 mm, the diameter of the foveola is about 0.35 mm, and the diameter of the umbo is about 0.15 mm. Based on the distribution of different tissue regions in the fundus, the size and shape of the annular spot can be designed to irradiate the desired area while avoiding irradiation of undesirable areas.

[0094] FIG4 shows a schematic diagram of an annular light spot according to some embodiments of the present application. The size of the annular light spot can be characterized by multiple parameters. As shown in the figure, in one example, the size of the annular light spot can be characterized by the inner diameter d1 of the inner ring and the outer diameter d2 of the outer ring. Based on the distribution of different tissue areas of the fundus, the inner diameter d1 of the annular light spot output by the myopia illumination system is between 0.0076 mm and 6 mm. In some embodiments, the size of the annular light spot can be any combination of the following:

[0095] The inner diameter d1 is about 1.5 mm, and the outer diameter d2 is about 2.5 mm. At this time, the annular spot illuminates the parafovea area but avoids the fovea area;

[0096] The inner diameter d1 is about 2.5 mm, and the outer diameter d2 is about 5.5 mm. At this time, the annular spot illuminates the perifovea area but avoids the parafovea area; or

[0097] The inner diameter d1 is about 1.5 mm, and the outer diameter d2 is about 5.5 mm. At this time, the annular spot illuminates the perifovea area and only avoids the fovea area.

[0098] In another example, the size of the annular spot can be characterized by an annular width k and a distance r1 from the center of the spot to the annular centerline. In some embodiments, the annular width k of the annular spot can be approximately 0.0038 mm to 3 mm, and the distance r1 from the center of the spot to the annular centerline can be approximately 0.0038 mm to 3 mm.

[0099] By designing the size of the annular spot, we can adapt it to the size of the human pupil and macula, improving illumination efficiency. The size of the annular spot can be adjusted by selecting an appropriate beam shaper and adjusting relevant optical components (such as the aperture) in the myopia illumination system. Regardless of the adjustment method used, the only requirement is to ensure that the annular spot projected onto the user's eye meets the predetermined size requirements.

[0100] Because the annular light spot output by the myopia illumination system is designed based on the user's ocular anatomy, it needs to be aligned with the user's eye position during use, so that the annular light spot is projected at a matching location to ensure the lighting effect. To assist with alignment, optionally or additionally, in some embodiments, an optotype pattern can be added to the annular light spot output by the myopia illumination system. Figure 5 shows a schematic diagram of an annular light spot with an optotype pattern according to some embodiments of the present application. The optotype pattern serves as a fixation point, guiding the user's pupil to stably align with the optotype pattern, thereby ensuring the angle and position of the annular light spot entering the pupil.

[0101] In some embodiments, to form an annular light spot with an optotype pattern, an optotype system is added to the myopia illumination system. This system is used to generate light with the optotype pattern to be projected onto the user's eyes along with the annular light. In one example, the optotype pattern can be formed by a beam shaping system. The beam shaper or spectrum shaper shown in FIG2 is provided with an optotype translucent portion. This portion is positioned at the center of the opaque portion and can transmit a portion of the broad spectrum light, thereby forming an annular light spot with the optotype pattern at the center. It should be noted that this embodiment does not strictly limit the shape of the optotype translucent portion; it can be circular, annular, cross-shaped, or star-shaped, and no further limitations are imposed herein.

[0102] In another example, the sight mark pattern can be formed by an additional sight mark light source and a spectroscope. Figure 6 shows an exemplary structural diagram of a myopia illumination system 600 according to some embodiments of the present application. As shown in Figure 6, the myopia illumination system can also include a sight mark light source 11 and a spectroscope 12. The wide-spectrum light source 1, the beam shaping system 2 and the projection system 3 are arranged on the same optical path, and the sight mark light source 11 is arranged on another optical path. The spectroscope 12 is arranged at the intersection of the two optical paths, wherein the optical path where the wide-spectrum light source 1 is located is the first optical path, and the optical path where the sight mark light source 11 is located is the second optical path. The spectroscope 12 can transmit the light of the first optical path and reflect the light of the second optical path, thereby projecting the annular light spot and the sight mark light spot together to the fundus of the user, and the position where the sight mark light spot is projected to the fundus is specifically located at the center of the annular light spot.

[0103] It should be noted that the beam splitter 12 can also reflect the light of the first optical path and transmit the light of the second optical path, thereby projecting the annular light spot and the sight mark light spot together to the user's fundus. It can be understood that the optical path of the wide-spectrum light source 1, beam shaping system 2, and projection system 3 in Figure 6 can be swapped with the optical path of the sight mark light source 11, and this is not limited here.

[0104] It should be further explained that this embodiment does not have strict restrictions on the shape of the sight mark light spot. In some embodiments, the shape of the sight mark light source can be adjusted by adjusting the shape of the light outlet of the sight mark light source, for example, by setting a light shielding plate with a specific shape at the light outlet of the sight mark light source to adjust the shape of the sight mark light, thereby achieving sight mark light spots of different shapes.

[0105] Figure 7 shows an exemplary structural diagram of a myopia illumination system 700 according to other embodiments of the present disclosure. As shown, the myopia illumination system 700 may include a wide-spectrum light source 1, a spectrum shaping system 5, and a projection system 3. The wide-spectrum light source 1 is configured to emit wide-spectrum light. The spectrum shaping system 5 is configured to shape the spectrum of the wide-spectrum light to produce light with a specified spectrum. The projection system 3 is configured to project the light with the specified spectrum into the user's eyes. The wide-spectrum light source and projection system are described above in conjunction with Figure 1 and will not be repeated here.

[0106] In the embodiments of the present application, spectrum shaping refers to adjusting the optical spectrum of the input light, for example, adjusting the wavelength range of the light, specifically including the starting wavelength, cutoff wavelength, and spectral cutoff width. By performing spectrum shaping on a broad spectrum of light, light of a desired wavelength can be selected to illuminate the fundus, thereby achieving the desired effect.

[0107] The spectrum shaping system may include one or more spectrum shapers. The spectrum shapers may be implemented in a variety of ways.

[0108] 8a-8c illustrate exemplary implementations of a spectrum shaper according to some embodiments of the present application.

[0109] Figure 8a illustrates the implementation of a spectrum shaper using a filter. In this embodiment, the spectrum shaper can be implemented using a single or multiple filters. The figure illustrates the principle of spectrum shaping using filters. As shown, filter 51 selectively transmits a portion of the spectrum of incident light 511 while blocking the rest of the spectrum through absorption, reflection, or other means. Specifically, based on the filter's spectral characteristics, it transmits designated light 512 and reflects and absorbs undesignated light 513.

[0110] Figure 8b illustrates the implementation of a spectrum shaper using a transmissive grating filter. In this embodiment, the spectrum shaper can be implemented using a single or multiple transmissive grating filters. The figure shows an exemplary structure of a transmissive grating filter. As shown, the transmissive grating filter 52 is composed of a series of parallel, equally spaced slits or protrusions. When a light source passes parallel to the grating, a diffraction effect is generated. By varying the grating parameters, light of a specific wavelength can be allowed to pass, while light of the remaining wavelengths will be diffracted elsewhere or eliminated, thereby achieving a spectrum shaping effect.

[0111] Figure 8c illustrates the implementation of a spectrum shaper using a reflective grating filter. In this embodiment, the spectrum shaper can be implemented using a single or multiple reflective grating filters. The figure illustrates the principle of spectrum shaping using a reflective grating filter. As shown, light of a specific wavelength is reflected orally by the reflective grating filter 53 and collected by the system, while light of unselected wavelengths is diffusely reflected or eliminated, thereby achieving the spectrum shaping effect.

[0112] Those skilled in the art will appreciate that other devices can also be used to achieve spectrum shaping. For example, a spectrum shaper can be formed using a single or multiple optical elements, including but not limited to prisms and lenses. Another example is a spectrum shaper using non-optical elements, such as a liquid crystal spectral transmission plate or a spectral absorber containing a spectral absorbing material. Regardless of the form, the spectrum shaper is essentially an optical filter. Therefore, the spectral range of spectrum shapers implemented by various devices can be characterized by the filtering parameters of the optical filter. These filtering parameters may include but are not limited to: center wavelength, start wavelength (also known as low-pass cutoff wavelength), cutoff wavelength (also known as high-pass cutoff wavelength), spectral cutoff width, etc. The spectral characteristics of the spectrum shaper can similarly include any of the following: high-pass; low-pass; bandpass; or multi-bandpass. Each spectrum shaper can have its own spectral range and spectral characteristics.

[0113] Figure 9 shows a schematic diagram of spectrum shaping by a spectrum shaper according to some embodiments of the present application. In this embodiment, the spectrum range of the spectrum shaper can be: a low-pass cutoff wavelength range of approximately 640nm-660nm, and a high-pass cutoff wavelength range of approximately 670nm-700nm, meaning a spectral cutoff width of approximately 10nm-60nm. As shown in the figure, the transmission spectrum range corresponds to the spectrum range that illuminates the fundus retina. The spectrum range in this embodiment can correspond to the red light spectrum.

[0114] Research has found that using a 650nm wavelength is highly effective in preventing and controlling myopia in adolescents. Furthermore, using a 670nm wavelength has also been shown to be effective in preventing and controlling myopia in middle-aged individuals. This prevention and control mechanism stems from the strong penetrating properties of long-wavelength red light. Therefore, after penetrating the retina, red light can simultaneously act on the choroid. Due to the warming effect of red light, it can open bottlenecks at the openings of the choroidal arterioles, increasing blood flow to the lobules. This, in turn, increases microcirculatory volume, thickens the choroid, and prevents scleral hypoxia. Sufficient oxygen supply to the sclera improves blood circulation in the fundus, thereby effectively preventing and controlling myopia. Furthermore, 650nm red light stimulates dopamine secretion in retinal epithelial pigment cells, effectively inhibiting excessive axial length growth. Therefore, by adjusting the spectrum shaper's parameters, such as the low-pass and high-pass cutoff wavelengths, within the aforementioned ranges, it is possible to select the appropriate red light from a wide-spectrum light source to match the user's needs, achieving even greater myopia prevention and control results.

[0115] Furthermore, in some embodiments, the spectrum shaping system may include multiple spectrum shapers, each of which may have a different spectral range and / or a different spectral cutoff width, thereby enabling a free combination of different spectral ranges and spectral cutoff widths. This combination can effectively improve the utilization of the spectrum and the effectiveness of myopia prevention, control, and improvement.

[0116] FIG10 illustrates an exemplary implementation of a spectrum shaping system including multiple spectrum shapers according to some embodiments of the present application. As shown, the spectrum shaping system 5 can be implemented as a rotatable wheel with multiple spectrum shapers (e.g., filters) distributed circumferentially around its edge. The multiple spectrum shapers include at least two different spectrum shapers. For example, the figure shows spectrum shapers 52 and 53, each with the same central wavelength but a spectral cutoff width of 10 nm and 20 nm, respectively. The figure also shows spectrum shapers 54 and 55, each with the same spectral cutoff width but a central wavelength of 650 nm and 670 nm, respectively, to accommodate different user types. Furthermore, the figure shows a light-transmitting plate 56, which can be considered a full-bandwidth spectrum shaper. It is understood that the other spectrum shapers shown in the figure can have different central wavelengths and spectral cutoff widths, and are not listed here.

[0117] Figure 11 shows a schematic diagram of spectrum shaping by a spectrum shaper according to other embodiments of the present application. In this embodiment, the spectrum range of the spectrum shaper can be: a low-pass cutoff wavelength range of approximately 360nm-375nm, and a high-pass cutoff wavelength range of approximately 385nm-400nm, i.e., a spectrum cutoff width of approximately 10nm-40nm. As shown in the figure, the transmission spectrum range corresponds to the spectrum range that illuminates the fundus retina. The spectrum range of this embodiment can correspond to the violet spectrum.

[0118] Research has found that ultraviolet light can be beneficial for eye health and myopia prevention and control. Therefore, by adjusting the spectrum shaper's parameters, such as the low-pass and high-pass cutoff wavelengths, within the aforementioned ranges, appropriate ultraviolet light can be selected from a wide-spectrum light source to illuminate the user's fundus, achieving the desired myopia prevention and control effect.

[0119] Similarly, in some embodiments, the spectrum shaping system may include multiple spectrum shapers, each spectrum shaper may have a different spectral range and / or a different spectral cutoff width, thereby enabling free combination of different spectral ranges and different spectral cutoff widths.

[0120] The aforementioned red and violet spectrum shaping can be implemented individually or in combination, for example, using a combination of different spectral cutoff widths in the red spectrum, a combination of different spectral cutoff widths in the violet spectrum, or a combination of both the red and violet spectra. The spectral ranges of the different spectrum shapers can be the same or different, with partial or no overlap. This effectively improves spectrum utilization and the effectiveness of myopia prevention, control, and improvement.

[0121] In some embodiments, the spectral cutoff width of a single spectrum shaper is approximately 5 nm to 60 nm, and the central wavelength can be any wavelength between 360 nm to 400 nm and 640 nm to 700 nm. For example, the spectral cutoff width can be 60 nm, 40 nm, 20 nm, 10 nm, 5 nm, and so on. Narrowing the spectral cutoff width allows for precise selection of the desired wavelength, ensuring the uniformity of the narrowband spectrum and achieving the improved effect associated with the corresponding wavelength.

[0122] In other embodiments, a combination of multiple spectrum shapers can be used to provide multiple spectral ranges for selection. For example, the spectral range of spectrum shaper #1 is 380±10 nm, the spectral range of spectrum shaper #2 is 650nm±5 nm, the spectral range of spectrum shaper #3 is 665nm±5 nm, the spectral range of spectrum shaper #4 is 670nm±5 nm, the spectral range of spectrum shaper #5 is 680nm±5 nm, the spectral range of spectrum shaper #6 is 650nm±10 nm, the spectral range of spectrum shaper #7 is 665nm±10 nm, the spectral range of spectrum shaper #8 is 665nm±20 nm, the spectral range of spectrum shaper #9 is 670nm±20 nm, the spectral range of spectrum shaper #10 is 680nm±20 nm, and so on.

[0123] When multiple spectrum shapers are used in combination, these spectrum shapers can be of the same type, such as all filters or all reflective grating filters, or of different types, such as some filters, some grating filters, some prisms, etc. Those skilled in the art, guided by the teachings of this application, can select an appropriate spectrum shaper based on the spatial structure of the myopia illumination system.

[0124] FIG12 shows an exemplary structural diagram of a myopia illumination system 1200 according to other embodiments of the present application. In these embodiments, other components of the myopia illumination system are further shown to better understand the present application. Based on the myopia illumination system 100 shown in FIG1 , the myopia illumination system 1200 of FIG12 is additionally equipped with a light homogenizer, a condenser, an aperture, a color temperature adjuster, a power monitor, and / or a spectrum shaping system.

[0125] As shown in Figure 12, the myopia illumination system 1200 may include: a wide-spectrum light source 1, a power monitor 4, a light homogenizer 6, a condenser 7, a beam shaping system 2, an aperture 8, a color temperature adjuster 9, a spectrum shaping system 5, an illumination lens 31, and a projection lens 32, arranged along the optical path. The wide-spectrum light source 1 may be an LED, emitting a divergent light beam. After being homogenized by the light homogenizer 6 and converged by the condenser 7, a convergent, uniform light beam is formed. This uniform light beam is shaped by the beam shaping system 2 to form a ring-shaped light beam. The color temperature can then be adjusted by the color temperature adjuster 9, and the spectrum can be shaped by the spectrum shaping system 5, resulting in an output light beam having a specified spectral range. During the light beam transmission process, the aperture 8 can adjust the size and / or power of the light beam passing through it. The adjusted light beam passes through the illumination lens 31 and the projection lens 32, ultimately outputting a uniformly distributed illumination beam that is projected onto the user's pupil 10.

[0126] Those skilled in the art will appreciate that FIG12 merely illustrates an exemplary structure of a myopia illumination system. In this structure, the power monitor 4, light homogenizer 6, condenser 7, beam shaping system 2, spectrum shaping system 5, aperture 8, and color temperature adjuster 9 are all optional optical components. When configuring a myopia illumination system, one or more of these components may be selected based on actual needs. Other optical components, such as the sight mark light source 11 and beam splitter 12 described above in conjunction with FIG6 , may also be added to achieve corresponding functions.

[0127] In some embodiments, the light homogenizer 6 is an element having the function of homogenizing the light of the light source, such as a light homogenizer, a diffuser, a light guide plate, etc. Taking the light homogenizer as an example, the light homogenizer can be set at a position of about 0mm to 1mm away from the wide-spectrum light source 1. The closer the light homogenizer is to the wide-spectrum light source 1, the more energy the light output by the wide-spectrum light source 1 passes through the light homogenizer, and the higher the utilization rate of the light source. As an example, the light homogenizer can be close to the light outlet of the wide-spectrum light source 1, so that all the output light of the wide-spectrum light source 1 passes through the light homogenizer. In actual application, when inserting the light homogenizer into the myopia lighting system 1100, it is necessary to pay attention to selecting a suitable spacing between the light homogenizer and the wide-spectrum light source 1 to ensure that the assembly tolerance does not cause the light homogenizer to deform or cause other problems.

[0128] In some embodiments, the smooth surface of the light diffuser faces the broad-spectrum light source 1. Since the light source is only penetrable on smooth surfaces, aligning the smooth surface of the light diffuser toward the broad-spectrum light source 1 maximizes energy transmission through the light diffuser, while the rough surface of the light diffuser faces the user's eyes. This arrangement causes light passing through the light diffuser to scatter on the rough surface, thereby forming a uniform surface light source on the rough surface. It should be further explained that if the light diffuser is made of other optical elements, the scattering side of the optical element should be oriented toward the user's eyes, while the other side should be oriented toward the broad-spectrum light source 1.

[0129] In addition, the smooth surface of the light diffuser facing the broad-spectrum light source 1 can reflect light at a wide angle. Therefore, by placing a power monitor 4 in the reflection path of this light, the emission power of the broad-spectrum light source can be monitored, thereby facilitating its control within a predetermined range, such as approximately 0.1mW-1W. As an example, the power monitor 4 can be a photoelectric conversion chip that receives light emitted from the broad-spectrum light source 1 and reflected by the smooth surface of the light diffuser, collects the energy of this light, and converts it into an electrical signal. This electrical signal can be transmitted to the backend for monitoring, thereby achieving the effect of monitoring the stability of the emission power of the broad-spectrum light source 1 and improving the safety of the myopia lighting system.

[0130] As an example, when performing stability monitoring, taking the photoelectric conversion chip as an example, the photoelectric conversion chip will output a PD value, such as 100, which corresponds to a power of 0.1mW. The background can judge the stability of the emission power of the wide-spectrum light source 1 by identifying the change in the PD value output by the photoelectric converter. In one embodiment, the background can monitor the absolute value of the PD value, and when the PD value exceeds the acceptable range, it is determined that the power is abnormal, and an alarm is issued and / or the emission power of the wide-spectrum light source 1 is actively intervened. In another embodiment, the background can monitor the numerical fluctuation of the PD value over a period of time to determine the abnormality. For example, when the extreme value of the fluctuation value of the PD value over a period of time reaches the fluctuation threshold, it is determined that the power is abnormal, and an alarm is issued and / or the emission power of the wide-spectrum light source 1 is actively intervened. It should be noted that the above descriptions are all examples of the implementation methods of the monitoring function provided in this embodiment. In actual application, other implementation methods are also applicable to this application.

[0131] In some embodiments, the wide-spectrum light source 1 is located at the entrance pupil plane of the condenser 7. Furthermore, in some embodiments, the condenser 7 can be in close contact with the light exit surface of the wide-spectrum light source 1. This arrangement enables the target surface of the wide-spectrum light source 1 to be located at the entrance pupil plane of the condenser 7, thereby converging all the divergent light beams output by the wide-spectrum light source 1.

[0132] The condenser 7 can be a plano-convex lens, an aspheric lens, or other optical element with a focusing function. Assuming a plano-convex lens is used as the condenser, the convex surface of the plano-convex lens faces the light source, and the flat surface faces the user's eyes. It should be further explained that if other optical elements are used as the condenser, the light beam diverging side of the optical element needs to be directed toward the light source, and the light beam converging side needs to be directed toward the user's eyes, so that the diverging light beams can be collected and converged.

[0133] Furthermore, in the myopia illumination system provided with the power monitor 4 , when the power monitor 4 detects power anomaly, the emission power of the light source can be adjusted by moving the condenser lens away from the light source.

[0134] In some embodiments, the spectrum shaping system 5 is used to shape the spectrum of the broad-spectrum light from the broad-spectrum light source before projecting it into the user's eyes, thereby producing light with a specified spectrum. In this application, spectrum shaping refers to adjusting the optical spectrum of the input light, for example, by adjusting the wavelength range of the light, specifically including the starting wavelength, cutoff wavelength, and spectral cutoff width. By performing spectrum shaping on the broad-spectrum light, light of a desired wavelength can be selected to illuminate the fundus, thereby achieving the desired effect.

[0135] [Corrected 21.05.2024 in accordance with Rule 91] The spectrum shaping system 5 may include one or more spectrum shapers. In this embodiment, the spectrum shapers may be implemented in a variety of ways. As an example, the spectrum shapers may be implemented using a single or multiple filters. The various implementations of the spectrum shaping system 5 and its shaping principles have been described in detail in the embodiments described above in conjunction with Figures 8a-8c. For detailed configuration and implementation, please refer to the previous description and will not be repeated here.

[0136] Furthermore, the multiple spectrum shapers in the spectrum shaping system 5 can be switched using a switch. By manipulating the switch to insert a specific spectrum shaper into the optical path of the myopia illumination system, targeted spectrum shaping of the broad spectrum light can be performed, thereby selecting light of a desired wavelength to illuminate the fundus. It should be noted that any device capable of implementing the above-mentioned switching function is applicable to this embodiment, for example, a rotary switch, and the embodiments of the present application are not limited in this respect.

[0137] In some embodiments, the aperture 8 can be an aperture aperture, and the size and / or power of the light beam can be adjusted by adjusting the aperture size parameters of the aperture aperture. As an example, the aperture aperture can be located at the exit pupil plane of the condenser, so that the divergent light source converged by the condenser can pass through the aperture aperture, thereby increasing the power of the light source passing through the aperture aperture. When the light source is an LED, since the LED light source has a large divergence angle and a divergent power distribution, the divergent light beam output by the LED light source converges after passing through the condenser, causing the power distribution of the light source to propagate backward and pass through the aperture aperture. In this case, the light source at the aperture aperture is equivalent to a surface light source, and the power attenuation is small. The divergence angle is the divergence angle of the converged light beam after passing through the aperture aperture, and the size is the diameter size of the aperture aperture.

[0138] In addition, the aperture stop is located at the front focal plane of the illumination lens 31, and the exit pupil plane of the illumination lens 31 is located between the illumination lens 31 and the projection lens 32 and is close to the illumination lens 31. In other words, the exit pupil plane of the illumination lens 31 is located behind the illumination lens 31 and close to its rear surface. This arrangement can make the light spot energy distribution on the exit pupil plane of the illumination lens 31 more uniform.

[0139] The exit pupil plane of the illumination lens 31 is also located at the front focal plane of the projection lens 32. With this arrangement, when using the aforementioned myopia illumination system, the light spot distribution on the exit pupil plane of the illumination lens 31 can be projected onto the fundus, allowing the human eye to perceive a uniform surface light source. Furthermore, the system can be designed so that the user's pupil is located at the rear focal plane of the projection lens 32, ensuring that light emitted from all locations on the exit pupil plane of the illumination lens 31 can pass through the pupil and illuminate the user's fundus.

[0140] Based on the above position conditions of the illumination lens 31 and the projection lens 32, those skilled in the art will clearly understand that in this embodiment, the illumination lens 31 and the projection lens 32 form a system structure of Köhler illumination, which solves the problem of light source non-uniformity. Those skilled in the art will also understand that this embodiment can also adopt other methods to implement the projection system, such as critical illumination projection, optical mirror projection, optical waveguide projection, AR / VR projection systems, etc., and can also adopt lighting systems such as direct light source lighting, LED desk lamp lighting, indoor and outdoor lighting, etc.

[0141] In other embodiments, the aperture 8 may include a first aperture and a second aperture, wherein the first aperture, the illumination lens 31, the second aperture, and the projection lens 32 are sequentially arranged to form a projection system. The positions of the illumination lens 31 and the projection lens 32 in this projection system can be found in the previous description. The position of the first aperture can be found in the previous description of the aperture stop, which will not be repeated here.

[0142] As an example, the second aperture is positioned in close proximity to the illumination lens 31. The first aperture is optically conjugate with the ocular surface entrance point of the user's eye, and the second aperture is optically conjugate with the fundus light spot of the user's eye. In this case, the aperture size of the first aperture determines the beam waist size at the optically conjugate position formed by the first aperture and the ocular surface entrance point of the user's eye, while the aperture size of the second aperture determines the size of the fundus light spot of the user's eye or the angle of incidence. It can be understood that by adjusting the aperture size of the first and / or second apertures, the fundus light spot projected onto the user's eye can be shaped, specifically, sized.

[0143] When using a myopia lighting system to illuminate the user's eyes, the pupil will automatically contract due to light stimulation, causing the pupil diameter to decrease by approximately 2.5mm. This results in a difference between the power of the fundus light spot output by the myopia lighting system and the actual power entering the eye. Specifically, the actual power entering the eye will be reduced by a square factor due to pupil contraction. The relationship is exemplified as follows: w = W × (Ld)2 / L2, where w represents the actual power entering the eye, W represents the power of the light spot output by the myopia lighting system, L represents the pupil diameter, and d represents the amount of pupil contraction. The contraction of the user's pupil reduces the diameter of the light entrance to the user's eye, resulting in a squared reduction in the area of ​​the light entrance area, thereby losing a squared amount of power.

[0144] Furthermore, the eye power of the myopia illumination system is determined based on one or more of the following factors: the beam waist size at the ocular surface entrance location, the size of the fundus light spot, and the output power of the broad-spectrum light source. It will be appreciated that by adjusting the aperture size of the first and / or second apertures, the power distribution of the fundus light spot projected onto the user's eye can be shaped.

[0145] In order to ensure the referenceability of the eye-entering power and the effectiveness of the illumination, in some embodiments, the first aperture is designed to be optically conjugate with the eye surface entrance position of the user's eye, so that the light beam at the eye surface entrance position converges, and the actual light entrance angle is 1.5mrad to 350mrad.

[0146] In some embodiments, power regulation is achieved by controlling the size of the light waist at the ocular surface entrance position as follows: when the light waist diameter does not exceed a specified threshold, the eye-entry power is equal to the output power of the broad-spectrum light source. In some embodiments, the specified threshold is approximately 2.5 mm ± 0.5 mm. As an example, FIG13a shows a schematic diagram of a light waist according to some embodiments of the present application. As shown in FIG13a, when the actual light waist diameter is below 2.5 mm, the pupil diameter is larger than the diameter of the fiber waist. At this time, it can be ensured that when the pupil contracts, all the light enters the eye, and the light spot power output by the system is all received and utilized by the fundus.

[0147] In other embodiments, the power regulation is achieved by controlling the light waist size at the eye surface entrance position as follows: when the light waist diameter is greater than a specified threshold, the eye entrance power is determined according to the power distribution of the output power of the wide-spectrum light source and the size of the fundus light spot. As an example, FIG13b shows a schematic diagram of the light waist according to other embodiments of the present application. As shown in FIG13b, when the actual light waist diameter is greater than 2.5 mm, the pupil diameter is smaller than the diameter of the fiber waist. In the case where the light spot power output by the system is Gaussian distributed, assuming that the light waist diameter is greater than 2.5 mm, the power received by the pupil of the user's eye accounts for approximately 90% to 100%, and the pupil and the power concentration area of ​​the output light spot have a high degree of overlap. Alternatively, the light spot power output by the system is evenly distributed, and the power received by the pupil of the user's eye depends on the ratio of the pupil area to the area of ​​the light spot output by the system.

[0148] It should be further explained that in some embodiments, the aperture parameters of the first aperture have a greater impact on the power distribution of the fundus light spot, while the aperture parameters of the second aperture have a greater impact on the size of the fundus light spot. Therefore, the power of the fundus light spot can be controlled primarily by adjusting the aperture size of the first aperture, while the size of the fundus light spot can be controlled primarily by adjusting the aperture size of the second aperture. As an example, when performing light spot shaping, the aperture of the second aperture can be first adjusted according to the desired spot size, and then the first light spot power adjustment curve can be determined based on the aperture of the second aperture. The aperture of the first aperture is then adjusted based on the first light spot power adjustment curve to ensure that the power of the fundus light spot meets the requirements. Furthermore, an exemplary expression of the first spot power adjustment curve is W=a1X14+a2X13+a3X12+a4X1+a5, wherein W represents the spot power, X1 represents the aperture of the first aperture, a1, a2, a3, a4 and a5 respectively represent the coefficients of the first spot power adjustment curve, and the coefficient values ​​can be obtained by looking up the table according to the spot size and the aperture size of the second aperture.

[0149] Furthermore, in some embodiments, the effect of the first aperture on the spot size can be ignored. In this case, there is a one-to-one correspondence between the spot size and the aperture of the second aperture. This relationship can be represented by a preset spot size adjustment curve or a spot size mapping table. As an example, the preset spot size adjustment curve can be expressed as S = -0.42X2 + 3.0533, where S represents the spot size and X2 represents the aperture of the second aperture. The array of mapped relationships in the spot size mapping table represents the aperture and spot size that satisfy the preset spot size adjustment curve, which will not be further described here.

[0150] In some embodiments, color temperature adjuster 9 is used to transmit light within a specified color temperature range to adjust the color temperature of the light projected onto the user's fundus. In some embodiments, color temperature adjuster 9 may be a warm light transmissive plate that transmits light within a color temperature range of approximately 3500K-5000K. By adding a color temperature adjuster, the light can be made softer, less harmful or irritating to the eyes.

[0151] Those skilled in the art will appreciate that FIG12 merely illustrates an exemplary structure of a myopia illumination system. In other embodiments, the light homogenizer 6 and the condenser 7 can be positioned at different locations. For example, the wide-spectrum light source 1, the light homogenizer 6, and the condenser 7 can be positioned sequentially, or the wide-spectrum light source 1, the condenser 7, and the light homogenizer 6 can be positioned sequentially. This is not intended to be limiting. The spectrum shaping system 5 and the color temperature adjuster 9 can also be positioned at different locations. For example, the spectrum shaping system 5 can be positioned at any of the following locations: between the wide-spectrum light source 1 and the condenser 7, between the wide-spectrum light source 1 and the light homogenizer 6, between the light homogenizer 6 and the condenser 7, between the condenser 7 and the aperture 8, between the light homogenizer 6 and the aperture 8, between the aperture 8 and the illumination lens 31, between the illumination lens 31 and the projection lens 32, in a direction away from the projection lens 32, and so on. Similar to the spectrum shaper, the beam shaper can be positioned at any location between the wide-spectrum light source and the user's eyes. This can be selected based on actual design requirements and is not intended to be limiting. Similarly, the color temperature adjuster 9 can also be set at any position on the light path between the wide-spectrum light source 1 and the human pupil 10, and the color temperature adjuster 9 and the spectrum shaping system 5 can also be set in any relative position relationship in the myopia lighting system. For example, the light can first pass through the color temperature adjuster 9 to complete the color temperature adjustment before entering the spectrum shaping system 5, or it can first pass through the spectrum shaping system 5 to undergo spectrum shaping before entering the color temperature adjuster 9. The embodiments of the present application are not limited in this respect.

[0152] Those skilled in the art should also understand that the myopia illumination system described above in conjunction with FIG12 is only an optional example. In actual application, the optical elements described in the previous embodiments may be added, deleted, or replaced as needed. For example, in other embodiments, the myopia illumination system may only include: a wide-spectrum light source 1, a condenser 7, a beam shaping system 2, a spectrum shaping system 5, an illumination lens 31, and a projection lens 32. For another example, in other embodiments, the myopia illumination system may only include: a wide-spectrum light source 1, a power monitor 4, a light homogenizer 6, a beam shaping system 2, an illumination lens 31, and a projection lens 32. The functions of the various components provided in the myopia illumination system have been described in detail in the previous embodiments and will not be repeated here.

[0153] Furthermore, the electrical components in the myopia illumination system provided in any of the aforementioned embodiments can be powered by a regulated power supply, such as a battery. For example, a lithium battery can be used to power the wide-spectrum light source, power monitor, and the like. The use of a regulated power supply ensures power stability in the myopia illumination system. Furthermore, the myopia illumination system can also monitor the regulated power supply circuit in real time, providing a low-battery status indicator (e.g., below 5%) to notify the user of a battery shortage and prompt a prompt to replace the battery promptly.

[0154] Based on the myopia illumination system provided above, the present application may also provide a myopia illumination device, which includes the myopia illumination system described in any of the above embodiments. Furthermore, in some embodiments, the myopia illumination device may utilize the myopia illumination system including the beam shaping system described in any of the above embodiments to output an annular light spot that meets the requirements. The inner diameter of the annular light spot output by the myopia illumination system may be adjusted based on the user's eye measurement data. As an example, the user's eye measurement data may be collected by an external eye measurement device, such as a comprehensive eye measurement instrument.

[0155] As an example, a myopia lighting device can be implemented as an intelligent device customized for the user. The user's eyes can be measured through an eye comprehensive measuring instrument, such as taking a retinal photo of the user's fundus, so as to identify and determine the tissue division of the retinal area and the diameter of the fovea. Assuming that the diameter of the user's fovea is 1.5mm, when configuring the myopia lighting device, the inner diameter of the annular light spot output by the myopia lighting system can be adjusted to 1.5mm through the beam shaping system to achieve customized myopia lighting treatment.

[0156] As another example, the power of the myopia illumination device can be pre-calibrated into one or more gears. When using the device, the user can choose the appropriate gear according to the situation. For example, 3 gears of power are calibrated, where the first gear is 0.3mw, the second gear is 0.9mw, the third gear is 1.5mw, etc. Different usage methods can be set for people of different age groups and / or different myopia levels, such as using a low gear for young people and a high gear for people with high myopia, etc. In some embodiments, a single gear or multiple gears can be achieved by calibrating the output power of the wide-spectrum light source. For example, a specified output power or multiple preset output powers can be pre-configured. After turning on the myopia illumination device, the output power of the wide-spectrum light source is directly set to the specified output power or one of the multiple preset output powers.

[0157] Typically, a myopia treatment device provides myopia treatment to both eyes. Therefore, the device may be configured with two lens barrels, a left eyepiece barrel and a right eyepiece barrel, to house the myopia treatment system. Furthermore, cushions made of soft materials such as silicone and sponge may be secured to the ends of the left and right eyepiece barrels that contact the user's eyes, enhancing comfort during use.

[0158] In order to facilitate those skilled in the art to understand the structure of the myopia illumination device, Figure 14 shows a schematic structural diagram of a myopia illumination device 1400 of some embodiments of the present application. As shown in the figure, in some embodiments, the left eyepiece barrel 141 and the right eyepiece barrel 142 are connected by a spacing adjuster 143, and the spacing adjuster 143 is used to adjust the distance between the left eyepiece barrel 141 and the right eyepiece barrel 142 to adapt to different pupil distances. This myopia illumination device supports adjustable gears for different users and also supports adjustable pupil distance. Further, the pupil distance can also be set to different gears. For example, the spacing range allowed by the spacing adjuster is 42mm-76mm, and a pupil distance gear can be set every 2mm, 1mm or 0.5mm, etc. For the intervals between each pupil distance gear, this application does not make too many restrictions.

[0159] In other embodiments, a monocular or binocular 3D camera device may also be provided on the left eyepiece barrel and / or the right eyepiece barrel, which can collect the user's pupil information, such as the user's pupil size. The pupil information can assist in adjusting the convergent beam diameter of the light beam entering the eye or adjusting the gear power of the myopia lighting device to ensure the effectiveness of entering the eye.

[0160] Furthermore, the myopia illumination device may also include a mechanical adjuster for adjusting the axis of the optical path of the myopia illumination system in the lens barrel. Combined with the 3D camera device provided on the left and / or right eyepiece barrels, the axis of the optical path of the myopia illumination system can be adjusted so that the center of the annular light spot output by the system aligns with the direction of the human eye's gaze, ensuring the light spot's efficient entry into the eye.

[0161] In addition to adjusting the axis of the optical path of the myopia illumination system within the lens barrel, the mechanical adjuster, in some embodiments, can further adjust the position of the sight mark pattern. By adjusting the position of the sight mark pattern, the user's gaze is guided in a different direction, thereby preventing eyestrain caused by prolonged staring in the same direction. It should be noted that during this adjustment, the axis of the optical path of the myopia illumination system must be synchronously controlled to ensure that the sight mark pattern remains centered within the annular light spot, thereby ensuring that the annular light spot is projected onto the designated area of ​​the user's eye.

[0162] In order to improve the accuracy of the above adjustment process, a 3D camera device can be used to synchronously monitor the user's real-time movement status, thereby providing reference information for the adjustment of the mechanical adjuster to ensure the effectiveness of the irradiation.

[0163] In addition, in order to ensure that the power distribution of the fundus light spot is more uniform, in some embodiments, a vibration motor 144 can be set on the housing of the myopia illumination device. The vibration motor 144 is started when the myopia illumination system is running. In order to more intuitively demonstrate the uniform light effect of the vibration motor, Figure 15 shows a schematic diagram of the power distribution before and after the vibration motor is operated according to some embodiments of the present application. According to Figure 15, it can be seen that after the vibration motor vibrates at a certain frequency, the waveforms of the power distribution before and after the vibration are superimposed, the fluctuation amplitude is reduced, and the power distribution is more uniform and stable. It should be further explained that the vibration direction of the vibration motor can be the arrangement direction of the left eyepiece barrel and the right eyepiece barrel, and when vibrating, one or both of the left eyepiece barrel and the right eyepiece barrel can be selected to vibrate.

[0164] In order to achieve intelligent control of the myopia illumination device, some embodiments of the present application further include a controller in the myopia illumination device. It should be noted that the number of controllers can be one or more. In the present application, the same controller can be used to perform different functions, or multiple different controllers can be used to perform different functions.

[0165] As an example, the power controller is connected to the wide-spectrum light source and is used to control the output power of the wide-spectrum light source, for example, adjusting the output power of the wide-spectrum light source to a specified output power or one of multiple preset output powers according to the gear instruction fed back by the user, thereby realizing power gear adjustment.

[0166] Furthermore, the power controller can communicate with an external eye measurement device and automatically adjust the device's power level upon receiving measurement data. For example, a user could perform an eye measurement every month or two weeks to determine if there is fundus damage or improvement in myopia. Based on this information, the controller can then update the specified or preset output power, thereby updating and upgrading the preset power level.

[0167] The distance controller can adjust the interpupillary distance. As another example, the distance controller can be connected to the distance adjuster to control the distance adjuster. For first-time users, the distance controller and distance adjuster can be used to implement a movement mode. In this movement mode, the distance between the left and right eyepieces cycles between 42mm and 76mm, effectively improving first-time users' adaptability to red light. It should be noted that the above distance ranges are only examples.

[0168] As another example, the shaping controller can also be connected to a 3D camera to capture the user's pupil information. In some embodiments, the shaping controller is connected to a beam shaping system to control the beam shaping system to adjust the diameter of the converging beam entering the eye based on the user's pupil size, forming a ring-shaped light beam that matches the user's pupil size. In other embodiments, the optical axis controller can be connected to a mechanical adjuster to control the mechanical adjuster to adjust the axis of the myopia lighting system's optical path based on the user's pupil position, aligning it with the center of the pupil to ensure the light source enters the eye efficiently.

[0169] It should be noted that the power controller, spacing controller, shaping controller, and illumination controller can be the same controller or multiple controllers that perform different functions in the myopia illumination device. The above naming of the controllers is only to distinguish the different functions they implement and does not limit the number of controllers.

[0170] The myopia illumination device may also store the device usage information, which may include: usage requirement information and device usage information, etc. The usage requirement information may include the number of daily uses, usage interval duration and usage duration, etc. For example, the usage requirement information may stipulate that the myopia illumination device is used twice a day, with an interval of 4 hours or more each time, and each use for 3 minutes. The controller may monitor whether the device usage meets the usage requirement information. If it meets the requirement, the device will be controlled to start normally, otherwise the device cannot be used normally. For medical scenarios, the number of daily uses can also be set to unlimited times, and multiple usage durations can be set for selection. The device usage information is used to feedback the usage of the device, for example, it may include: the number of times the device is used, the location of the device, the type of network used, the usage time, whether the device is in normal condition, and the power used, etc.

[0171] As an example, the aforementioned device data, including device usage information, can be centrally managed by a device management platform, with the myopia illumination device and the device management platform exchanging data via wireless communication. By monitoring this data, the device management platform can remotely upgrade the myopia illumination system. In some embodiments, the myopia illumination device can be equipped with a remote upgrade module, controlled by the device management platform and responsible for remotely upgrading the system based on the user's eye measurement data.

[0172] Based on the functions of one or more controllers described in the previous embodiments, some embodiments of the present application can provide a method for controlling a myopia lighting device, which is applicable to the myopia lighting device described in any of the previous embodiments. For the convenience of description, the following describes the method for controlling a myopia lighting device using a single controller as an example. It should be noted that when a myopia lighting device uses multiple controllers, the following control method can be matched with controllers with different functions, which will not be elaborated here.

[0173] In this embodiment, the control method is executed by a controller, such as a shaping controller. FIG16 shows an exemplary flow chart of a control method 1600 of a myopia lighting device according to some embodiments of the present application.

[0174] As shown in the figure, in step S1601, measurement data of the user's eyes is obtained. In some embodiments, this measurement data can be collected by an external ophthalmological measurement device, such as a comprehensive ophthalmometer. Furthermore, this measurement data can be collected at regular intervals, thereby forming a data set of measurement data for several periods. The measurement data includes, but is not limited to, the diameter of the user's fovea, the degree of myopia of both eyes, and the user's pupillary distance and axial length.

[0175] In step S1602, the diameter of the user's fovea is determined based on the measurement data. The diameter of the user's fovea can reflect the position and size of the user's eye sensitive area, thereby guiding the shape of the annular light spot.

[0176] In step S1603, the beam shaping system is controlled to shape the broad-spectrum light into a designated annular light. In this step, the controller controls the beam shaping system to shape the light, thereby forming the designated annular light. The shaping function of the beam shaping system has been fully described in the previous embodiments and will not be further elaborated here.

[0177] In this embodiment, the inner diameter of the designated annular light is consistent with the diameter of the user's fovea, thereby ensuring that the user's fovea is protected from strong light stimulation.

[0178] In addition, in some embodiments, the controller can also control the output power of the wide-spectrum light source. As an example, the power of the myopia illumination system can be pre-set to one or more power levels. When the myopia illumination device is turned on, the controller can control the output power of the wide-spectrum light source to the specified output power, so that the power of the myopia illumination system meets the preset power level. Alternatively, the controller can also control the output power of the wide-spectrum light source to one of multiple preset output powers, so that the power of the myopia illumination system meets one of the preset power levels.

[0179] Furthermore, when the measurement data includes measurement data obtained in several cycles, the controller can also determine whether the user's fundus is damaged, the extent of the damage, or whether the myopia has improved based on the measurement data, so as to update the specified output power or the preset output power to achieve power level adjustment.

[0180] In addition to adjusting the power level, in other embodiments, a controller, such as a distance controller, can control the myopia illumination device to adapt to different pupil distances. In this embodiment, the myopia illumination device further includes: a left eyepiece barrel, a right eyepiece barrel, and a distance adjuster disposed therebetween, the distance adjuster being used to adjust the distance between the left eyepiece barrel and the right eyepiece barrel.

[0181] FIG17 shows an exemplary flowchart of a control method 1700 of a myopia lighting device according to some other embodiments of the present application. A controller, such as a spacing controller, may also execute the control method shown in FIG17 .

[0182] In step S1701, pupil information of the user is obtained. In this embodiment, pupil information includes the user's pupil distance. In some embodiments, pupil information can be collected by a 3D camera device mounted on the lens barrel. The 3D camera device can be a monocular or binocular camera device. Furthermore, either the left eyepiece barrel or the right eyepiece barrel can be equipped with a 3D camera device, or both. The 3D camera device is positioned adjacent to the eyepiece position of the lens barrel to facilitate collection of pupil information of the user. The collected pupil information is transmitted to a controller for subsequent operations such as adjusting the pupil distance.

[0183] In step S1702, the distance adjuster is controlled to adjust to a specified position or to cyclically move in a predetermined pattern according to the user's pupil distance. In some embodiments, the controller can control the distance adjuster to adjust the distance between the left eyepiece barrel and the right eyepiece barrel to be consistent with the user's pupil distance, where the distance refers to the distance between the axes of the left eyepiece barrel and the right eyepiece barrel. In other embodiments, the controller can control the distance adjuster to adjust to a specified position, which can be one of several pre-set distance positions. For example, the distance range of the distance adjuster is 42mm-76mm, and a distance position is generated every 2mm, 1mm, or 0.5mm. In some other embodiments, the myopia illumination device can also be provided with a predetermined mode, a motion mode, in which the distance adjuster can cyclically move within its distance range to improve the adaptability of first-time users to red light.

[0184] In addition to pupil distance, a controller, such as an optical axis controller, can also control the angle of entry of the annular light beam. As an example, the myopia illumination device may also include a mechanical adjuster for adjusting the axis of the optical path of the myopia illumination system. After obtaining the user's pupil information in step S1701, the controller may also execute step S1703 to control the mechanical adjuster to adjust the axis of the optical path of the myopia illumination system to align with the user's pupil center based on the user's pupil center position.

[0185] Furthermore, in some embodiments, the myopia lighting device also includes an optotype system, which is used to generate light of an optotype pattern. After obtaining the user's pupil information in step S1701, the controller can also control the mechanical adjuster to adjust the light direction of the optotype pattern according to the user's pupil information so that it is aligned with the user's pupil center.

[0186] As an example, the sight mark system includes a sight mark light source and a beam splitter. The relative positions of the sight mark light source and the beam splitter in the myopia illumination device have been fully described in the previous embodiments and will not be repeated here. In this example, the controller can adjust the direction of the light of the sight mark pattern by controlling the mechanical adjuster to adjust one or more of the following parameters: the position of the sight mark light source, the position of the beam splitter, and the angle of the beam splitter.

[0187] In addition, some embodiments of the present application can also use a 3D camera device installed in the myopia lighting device to obtain the user's pupil size. This is used as a reference by the controller to control the beam shaping system, adjusting the waist diameter of the annular light beam entering the eye to adapt to the pupil size. Furthermore, the 3D camera device can calculate and capture the pupil size in real time, and the controller can also control the beam shaper in real time based on the results collected by the 3D camera device.

[0188] In some embodiments of the present application, the myopia illumination systems in the left eyepiece barrel and the right eyepiece barrel can be controlled separately. As an example, after the controller obtains the measurement data of the user's eyes, the controller can, based on the myopia degree and / or eye axis information of the user's eyes, control the myopia illumination system in the left eyepiece barrel to turn on when the user's left eye is myopic, or control the myopia illumination system in the right eyepiece barrel to turn on when the user's right eye is myopic, or turn on both when both eyes are myopic. Further, in other embodiments, the controller can also control the opening duration of the myopia illumination system in the left eyepiece barrel and the right eyepiece barrel respectively, thereby realizing time-sharing management. For example, for users with different degrees of myopia in both eyes, the illumination time of the eye with a high degree of myopia is 3 minutes, and the illumination time of the eye with a low degree of myopia is 2 minutes or 1 minute. The time can be in minutes or seconds, and there are no excessive restrictions here.

[0189] Furthermore, in some embodiments, the controller can also control the output power of the myopia illumination system in the left and right eyepiece barrels separately. For example, for a user with different degrees of myopia in both eyes, the eye with higher myopia will use a higher output power, while the eye with lower myopia will use a lower output power.

[0190] The terms "first" or "second" used in this application to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly specified.

[0191] Although multiple embodiments of the present application have been shown and described herein, it will be apparent to those skilled in the art that such implementation is provided by way of example only. Those skilled in the art can conceive of many changes, modifications, and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein can be adopted. The accompanying claims are intended to limit the scope of protection of the present application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A myopia lighting system, characterized in that, Comprising: A wide-spectrum light source for emitting wide-spectrum light rays; And A projection system for projecting the wide-spectrum light rays onto the user's eyes.

2. The myopia lighting system according to claim 1, characterized in that, Further comprising: A beam shaping system for shaping the wide-spectrum light rays to form annular light rays; And The projection system is used to project the annular light rays onto the user's eyes to form an annular light spot.

3. The myopia illumination system according to claim 2, wherein The beam shaping system comprises: a substrate, the substrate includes an annular light-transmitting portion and an opaque portion located at the center of the annular light-transmitting portion; or The beam shaping system comprises: a spectral shaper, the spectral shaper includes an annular light-transmitting portion and an opaque portion located at the center of the annular light-transmitting portion.

4. The myopia lighting system according to claim 2, wherein Further comprising: A visual target system for generating light rays of a visual target pattern to be projected onto the user's eyes together with the annular light rays.

5. The myopia illumination system according to claim 4, wherein, The visual target system comprises: a visual target light-transmitting portion, which is arranged in the spectral shaper of the beam shaping system, the visual target light-transmitting portion is located at the center of the opaque portion of the spectral shaper, and is used for transmitting part of the wide-spectrum light rays to form annular light rays with a visual target pattern in the center.

6. The myopia lighting system according to claim 4, wherein, The visual target system comprises: a visual target light source and a beam splitter, the output optical path of the visual target light source coincides with the first optical path of the beam splitter, and the second optical path of the beam splitter coincides with the propagation optical path of the annular light rays; Wherein, the first optical path is one of a reflection optical path and a projection optical path, the second optical path is the other of the reflection optical path and the projection optical path different from the first optical path, and the position where the visual target light rays output by the visual target light source are projected onto the user's eyes is located at the center of the annular light spot.

7. The myopia illumination system according to any one of claims 3-6, characterized in that, Comprising at least one of the following features (1) to (3): (1) The material of the annular light-transmitting portion includes any one of the following: glass, crystal, plastic, resin; (2) The material of the opaque portion is an opaque material; (3) The material of the opaque portion is the same as that of the annular light-transmitting portion but is subjected to an opaque treatment.

8. The myopia illumination system according to claim 7, wherein The opaque portion includes: black acrylic; or The opaque treatment includes: sandblasting treatment, painting treatment or pasting a black dot annular light-transmitting film.

9. The myopia lighting system according to any one of claims 2-8, characterized in that, The size of the annular light spot satisfies any one of the following situations: The annular width k of the annular light spot is 0.0038 mm - 3 mm, and the distance r1 from the center of the light spot to the annular center line is 0.0038 mm - 3 mm; The inner diameter of the annular light spot is between 0.0076 mm and 6 mm; The inner diameter d1 of the annular light spot is 1.5 mm, and the outer diameter d2 is 2.5 mm; The inner diameter d1 of the annular light spot is 2.5 mm, and the outer diameter d2 is 5.5 mm; or The inner diameter d1 of the annular light spot is 1.5 mm, and the outer diameter d2 is 5.5 mm.

10. The myopia lighting system according to any one of claims 1-9, characterized in that, The spectral range of the wide-spectrum light source is a spectral range covering any spectral cut-off width within the range of 300 nm - 700 nm.

11. The myopia lighting system according to any one of claims 1-10, characterized in that, The wide-spectrum light source includes at least one of an LED lamp, an incandescent lamp, and a fluorescent lamp.

12. The myopia lighting system according to any one of claims 1-11, characterized in that, Further comprising: A spectral shaping system for shaping the spectrum of the wide-spectrum light rays to form light rays with a specified spectrum; And The projection system is configured to project light of the specified spectrum onto the user's eyes.

13. The myopia lighting system according to claim 12, wherein, The spectrum shaping system includes one or more spectrum shapers, and the spectral range of one or more of the spectrum shapers meets any of the following conditions: The spectral cut-off width is 5 nm - 60 nm, and the central wavelength is selected from any wavelength between the wavelength ranges of 360 nm - 400 nm and 640 nm - 700 nm; The low-pass cut-off range is approximately 640 nm - 660 nm, and the high-pass cut-off range is approximately 670 nm - 700 nm; or The low-pass cut-off range is approximately 360 nm - 375 nm, and the high-pass cut-off range is approximately 385 nm - 400 nm.

14. The myopia lighting system according to claim 13, wherein The spectrum shaper includes any one or more of the following or a combination thereof: a filter; a transmissive grating filter; a reflective grating filter; a prism; a lens; a liquid crystal spectral transmission plate; or a spectral absorber.

15. The myopia lighting system according to claim 13, wherein the spectral characteristics of the spectrum shaper include any one of the following: high-pass; low-pass; band-pass; or multi-band-pass.

16. The myopia lighting system according to any one of claims 1 - 15 further includes: A color temperature adjuster configured to transmit light with a specified color temperature range to adjust the color temperature of the light projected onto the user's fundus.

17. The myopia lighting system according to claim 16, wherein the color temperature adjuster is a warm light transmission plate, and the specified color temperature range is approximately 3500K - 5000K.

18. The myopia lighting system according to any one of claims 1-17, characterized in that, It further includes a light homogenizing plate, with the smooth surface of the light homogenizing plate facing the broadband light source and the rough surface facing the user's eyes.

19. The myopia lighting system according to claim 18, characterized in that, The distance between the light homogenizing plate and the broadband light source is 0 mm to 1 mm.

20. The myopia illumination system according to any one of claims 18-19, characterized in that, It further includes a power monitor configured to monitor the emission power of the broadband light source to control it within a predetermined range.

21. The myopia lighting system according to claim 20, wherein, The power monitor receives the light reflected from the smooth surface of the light homogenizing plate and emitted from the broadband light source to achieve the monitoring.

22. The myopia lighting system according to claim 20, wherein The predetermined range is 0.1 mW - 1 W.

23. The myopia lighting system according to any one of claims 1-22, characterized in that, The projection system includes a first aperture, an illumination lens, a second aperture, and a projection lens arranged in sequence along the optical path, and the second aperture is in close contact with the illumination lens. The first aperture is optically conjugate to the eye surface entrance position of the user's eyes. The second aperture is optically conjugate to the fundus spot of the user's eyes. The incident power of the myopia lighting system is determined based on one or more of the following factors: The beam waist size of the light beam at the eye surface entrance position, the size of the fundus spot, and the output power of the broadband light source.

24. The myopia lighting system according to claim 23, wherein, Wherein: When the beam waist diameter of the light does not exceed a specified threshold, the incident power is equal to the output power of the broadband light source; or When the beam waist diameter of the light is greater than the specified threshold, the incident power is determined based on the power distribution of the output power of the broadband light source and the size of the fundus spot.

25. The myopia illumination system according to claim 24, characterized in that, Wherein the specified threshold is 2.5 mm ± 0.5 mm.

26. A myopia lighting device, characterized in that, Includes: The myopia lighting system according to any one of claims 1 - 25.

27. The myopia lighting device according to claim 26, wherein The inner diameter of the annular spot output by the myopia lighting system is adjusted according to the measurement data of the user's eyes.

28. The myopia lighting device according to any one of claims 26-27, characterized in that, It further includes: A power controller The power controller is communicatively connected to an external eye measurement device, and is configured to obtain measurement data of a user's eyes, and based on the measurement data, control the output power of the broadband light source to be a specified output power or one of a plurality of preset output powers, and update the specified output power or the preset output power.

29. The myopia lighting device according to any one of claims 26-28, characterized in that, It further includes: A left eyepiece tube and a right eyepiece tube, each of the left eyepiece tube and the right eyepiece tube is provided with a myopia illumination system, and the left eyepiece tube and the right eyepiece tube are connected by a spacing adjuster, and the spacing adjuster is configured to adjust the distance between the left eyepiece tube and the right eyepiece tube to adapt to different interpupillary distances.

30. The myopia lighting device according to claim 29, wherein It further includes: A spacing controller, the spacing controller is connected to the spacing adjuster, and is configured to control the spacing adjuster to adjust to a specified gear or move in a predetermined pattern in a cycle.

31. The myopia lighting device according to any one of claims 29-30, characterized in that, A 3D camera device is disposed on the left eyepiece tube and / or the right eyepiece tube, and is configured to collect pupil information of the user.

32. The myopia lighting device according to claim 31, wherein, It further includes: An optical axis controller and a mechanical adjuster; The optical axis controller is respectively connected to the mechanical adjuster and the 3D camera device, and is configured to control the mechanical adjuster to adjust the axis of the optical path of the myopia illumination system according to the pupil information.

33. The myopia lighting device according to any one of claims 31-32, characterized in that, It further includes: A shaping controller; The shaping controller is respectively connected to the 3D camera device and the beam shaping system, and is configured to control The beam shaping system according to the pupil information to form an annular light beam waist diameter of the incident light beam that matches the pupil size.

34. The myopia lighting device according to any one of claims 26-33, characterized in that, The device data of the myopia illumination device is uniformly managed by a device management platform, and the myopia illumination device and the device management platform perform data interaction through a wireless communication method.

35. The myopia lighting device according to any one of claims 26-34, characterized in that, [[ID=|1]] A vibration motor is disposed on the casing of the myopia illumination device, and is started when the myopia illumination system is operating.

36. A control method for a myopia lighting device, characterized in that, The myopia illumination device includes: a broadband light source, a beam shaping system, a projection system, and a shaping controller. Among them, the broadband light emitted by the broadband light source is shaped by the beam shaping system, and the shaped annular light is projected onto the user's eyes through the projection system to form an annular light spot; The shaping controller executes the following control method, which includes: Obtaining measurement data of the user's eyes; Determining the diameter of the fovea centralis of the user according to the measurement data; and Controlling the beam shaping system to shape the broadband light into a specified annular light, and the inner diameter of the specified annular light is consistent with the diameter of the fovea centralis of the user.

37. The control method according to claim 36, wherein Wherein the myopia illumination device further includes: a power controller. After obtaining the measurement data of the user's eyes, the power controller further executes the following control method, which includes: Controlling the output power of the broadband light source according to the measurement data to make it a specified output power or one of a plurality of preset output powers; And / or, Updating the specified output power or the preset output power based on the measurement data, where the measurement data includes measurement data obtained in a plurality of cycles.

38. The control method according to claim 36, wherein The myopia illumination device further includes: a left eyepiece tube, a right eyepiece tube, a spacing adjuster disposed between the left eyepiece tube and the right eyepiece tube, and a spacing controller; The spacing controller further executes the following control method, which includes: According to the user's pupillary distance, control the spacing adjuster to adjust to a specified gear or move cyclically according to a predetermined pattern.

39. The control method according to claim 36, wherein The myopia lighting device further includes: a mechanical adjuster and an optical axis controller for adjusting the axis of the optical path of the myopia lighting system; The optical axis controller also executes the following control method, which includes: According to the user's pupil information, control the mechanical adjuster to adjust the axis of the optical path of the myopia lighting system so that it aligns with the center of the user's pupil.

40. The control method according to claim 39, wherein The myopia lighting device further includes: a target system for generating light rays of a target pattern to be projected onto the user's eyes together with the annular light rays; The optical axis controller also executes the following control method, which includes: According to the user's pupil information, control the mechanical adjuster to adjust the direction of the light rays of the target pattern so that it aligns with the center of the user's pupil.

41. The control method according to claim 40, characterized in that, The target system includes: a target light source and a beam splitter, wherein the output optical path of the target light source coincides with the first optical path of the beam splitter, and the second optical path of the beam splitter coincides with the propagation optical path of the annular light rays; The optical axis controller also executes the following control method, which includes: According to the user's pupil information, control the mechanical adjuster to adjust one or more of the following parameters: the position of the target light source, the position of the beam splitter, and the angle of the beam splitter.

42. The control method according to claim 36, wherein The myopia lighting device further includes: a left eyepiece tube and a right eyepiece tube, and a myopia lighting system is provided in each of the left eyepiece tube and the right eyepiece tube; After obtaining the measurement data of the user's eyes, the following control method is further executed, which includes: According to the measurement data, control one or both of the myopia lighting systems in the left eyepiece tube and the right eyepiece tube to turn on; and / or, According to the measurement data, respectively control the on-time of the myopia lighting systems in the left eyepiece tube and the right eyepiece tube; and / or, According to the measurement data, respectively control the output power of the myopia lighting systems in the left eyepiece tube and the right eyepiece tube; Wherein, the measurement data includes the myopia degree and / or the eye axis information of the user's both eyes.

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