Peripheral myopic out-of-focus stimulation generating device

Abstract

The utility model discloses a peripheral myopic out-of-focus stimulation generating device, which comprises a light condensing part, a light emitting part, a light receiving part and a light emitting part, the light condensation piece comprises a light-transmitting plate and a light condensation part arranged on one side of the light-transmitting plate, and a pattern face is arranged on the side, away from the light condensation part, of the light-transmitting plate. According to the technical scheme, the stability of peripheral myopic out-of-focus stimulation generation can be improved, so that the effect of inhibiting eye axis growth is improved, myopia development is delayed, direct contact with human eyes is avoided, and the hidden danger of cornea injury is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of eye protection, in particular to a device for generating peripheral myopic defocus stimulation. Background Art

[0002] Hyperopic defocus in the periphery of the retina can promote axial growth and accelerate the development of myopia, while myopic defocus in the periphery of the retina can inhibit axial growth and delay the development of myopia. Although traditional single-vision lenses can effectively correct central retinal refractive errors and ensure clear vision, they will promote hyperopic defocus in the periphery of the eye, further exacerbating the development of myopia. Common tools used to protect vision and delay the development of myopia include defocus frame glasses, peripheral defocus soft lenses, and orthokeratology lenses, but these tools either come into contact with the human eye and pose a risk of damaging the cornea, or cannot stably produce peripheral myopic defocus stimulation when used, resulting in these tools not being very effective in inhibiting axial growth. Utility Model Content

[0003] The main purpose of the utility model is to provide a device for generating peripheral myopic defocus stimulation, aiming to improve the stability of the generation of peripheral myopic defocus stimulation, thereby improving the effect of inhibiting the growth of the eye axis and delaying the development of myopia, and eliminating the hidden danger of damaging the cornea without direct contact with the human eye.

[0004] To achieve the above-mentioned purpose, the utility model provides a device for generating peripheral myopic defocus stimulation, comprising: a focusing member, wherein the focusing member comprises a light-transmitting plate and a focusing portion arranged on one side of the light-transmitting plate, and a pattern surface is provided on the side of the light-transmitting plate away from the focusing portion.

[0005] Optionally, the focusing portion is a convex lens.

[0006] Optionally, a plurality of convex lenses are provided, and the plurality of convex lenses are arranged at intervals from each other.

[0007] Optionally, the plurality of convex lenses are distributed in a rectangular array.

[0008] Optionally, the distance between any two adjacent convex lenses is 3 mm to 5 mm.

[0009] Optionally, the plurality of convex lenses are distributed in a circular array.

[0010] Optionally, the diameter of the root cut circle of the convex lens is 2.5 mm to 3.5 mm.

[0011] Optionally, the convex lens has a sagittal height of 0.5 mm to 1.5 mm.

[0012] Optionally, the maximum thickness of the light concentrator is 1 mm to 4 mm.

[0013] Optionally, the light focusing portion and the light-transmitting plate are integrally formed.

[0014] Optionally, the focusing portion is a Fresnel lens.

[0015] Optionally, the light focusing portion is a strip with an arc-shaped raised cross section.

[0016] Optionally, the device for generating peripheral myopic defocus stimulation further includes a light-transmitting member, and the light-transmitting member is detachably mounted on the surface of the focusing portion.

[0017] Optionally, the peripheries of the light concentrating member and the light transmissive member are provided with edging, and the edging is extended along the peripheries of the light concentrating member and the light transmissive member.

[0018] In the technical solution of the utility model, a gaze object is placed on a light-transmitting plate, and the position where the gaze object is placed is a gaze space. The gaze object can be a visible object such as a book or a mobile phone. When the human eye's line of sight is directed at the gaze object, the divergent light emitted by the gaze object will be converged on the central retina by the human eye. The light emitted by the pattern on the pattern surface at the bottom of the gaze object is converged by the focusing part and then emitted from the defocused stimulation space around the gaze space. In the direction perpendicular to the human eye's line of sight, the projection of the gaze space coincides with the projection of the defocused stimulation space, that is, when the human eye is gazing at the gaze object, the pattern under the focusing part can still be seen in the human eye's line of sight, and the convergence of the light emitted by the pattern will be greater than that emitted by the gaze object. The convergence of the emitted light rays is improved, so after being converged by the human eye again, it will form an image in front of the peripheral retina, thereby bringing peripheral myopic defocus stimulation to the human eye. With this arrangement, when the object of gaze and the focusing element meet the above-mentioned placement conditions, it can ensure that the human eye will continue to be stimulated by peripheral myopic defocus when viewing the object of gaze, thereby inhibiting the growth of the eye axis. Moreover, when in use, the device is fixed relative to the human body and does not contact the human eyeball, which can improve the stability of the device in generating peripheral myopic defocus stimulation, thereby improving the effect of inhibiting the growth of the eye axis, delaying the development of myopia in the human eye, and protecting the eyes from damage. It does not need to be worn, which can improve the user experience and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a device for generating peripheral myopic defocus stimulation of the utility model;

[0021] Figure 2A diagram showing the optical path of the device for generating peripheral myopic defocus stimulation of the utility model and the human eye when in use;

[0022] Figure 3 Another optical path diagram of the peripheral myopic defocus stimulus generating device of the utility model and the human eye when in use;

[0023] Figure 4 It is a cross-sectional view of another embodiment of the device for generating peripheral myopic defocus stimulation of the utility model;

[0024] Figure 5 It is a cross-sectional view of a light-transmitting member and a light-condensing member in another embodiment of the device for generating peripheral myopic defocus stimulation of the utility model;

[0025] Figure 6 It is a cross-sectional view of a light-transmitting member and a light-condensing member in another embodiment of the device for generating peripheral myopic defocus stimulation of the utility model;

[0026] Figure 7 This is a schematic diagram of the dimensions of a focusing member in an embodiment of a device for generating peripheral myopic defocus stimulation of the utility model;

[0027] Figure 8 It is a schematic diagram of the dimensions of an embodiment of a device for generating peripheral myopic defocus stimulation of the utility model;

[0028] Fig. 9 It is a cross-sectional view of an embodiment of a device for generating peripheral myopic defocus stimulation of the utility model;

[0029] Fig.10 It is a structural schematic diagram of another embodiment of the device for generating peripheral myopic defocus stimulation of the utility model;

[0030] Fig.11 This is a structural schematic diagram of another embodiment of the device for generating peripheral myopic defocus stimulation of the utility model.

[0031] Description of Figure Numbers:

[0032] Label name Label name 10 Patterned surface 20 Concentrator 201 Spotlight 202 Watching Space 203 Defocused Stimulation Space 21 Translucent board 22 Spotlight Department 221 Convex lens 30 frame 31 Light-transmitting parts 32 Object of gaze 33 Hemming

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] The utility model provides a device for generating peripheral myopic defocus stimulation.

[0039] In one embodiment of the present invention, Figures 1 to 11As shown, the device for generating peripheral myopic defocus stimulation includes a focusing element 20, and the focusing element 20 includes a light-transmitting plate 21 and a focusing portion 22 arranged on one side of the light-transmitting plate 21, the focusing portion 22 is provided with a focusing surface 201, the light-transmitting plate 21 is provided with a pattern surface 10 on the side away from the light-focusing portion 22, the light-transmitting plate 21 is provided with a gaze space 202 and a defocus stimulation space 203, and at least a portion of the projection of the gaze space 202 coincides with the projection of the defocus stimulation space 203.

[0040] The gaze space 202 is used to place the gaze object 32 , and the pattern on the pattern surface 10 can be displayed through the focusing element 20 .

[0041] In the technical solution of the present utility model, a gaze object 32 is placed on the light-transmitting plate 21, and the position where the gaze object 32 is placed is the gaze space 202. The gaze object 32 can be a visible object such as a book or a mobile phone. When the human eye is directed at the gaze object 32, the divergent light emitted by the gaze object 32 will be converged on the central retina by the human eye. The light emitted by the pattern on the pattern surface 10 at the bottom of the gaze object 32 is converged by the focusing surface 201 on the focusing element 20, and then emitted from the defocused stimulation space 203 around the gaze space 202. In the direction perpendicular to the human eye's line of sight, the projection of the gaze space 202 coincides with the projection of the defocused stimulation space 203, that is, when the human eye is gazing at the gaze object 32, the pattern under the focusing element 20 can also be seen in the human eye's line of sight. , the convergence degree of the light emitted by the pattern will be greater than the convergence degree of the light emitted by the object of gaze 32, so after being converged by the human eye again, it will be imaged in front of the peripheral retina, thereby bringing peripheral myopic defocus stimulation to the human eye. In this way, when the object of gaze 32 and the focusing member 20 meet the above-mentioned placement conditions, it can be ensured that the human eye will continue to be stimulated by peripheral myopic defocus when watching the object of gaze 32, thereby inhibiting the growth of the eye axis. Moreover, when the device is used, it is fixed relative to the human body and does not contact the human eyeball, which can improve the stability of the device in generating peripheral myopic defocus stimulation, thereby improving the effect of inhibiting the growth of the eye axis, delaying the development of myopia in the human eye, and protecting the eyes from damage. It does not need to be worn, which can improve the user experience and comfort of the user.

[0042] In addition, the object of gaze 32 may not be placed on the light-transmitting plate 21. When the projection of the object of gaze 32 on the light-transmitting plate 21 does not cover the focusing surface 201, the human eye can be stimulated by peripheral myopic defocus when gazing at the object of gaze 32, which can inhibit the growth of the eye axis.

[0043] Furthermore, the device for generating peripheral myopic defocus stimulation includes a base plate. The base plate can be a desk top, a dining table top, a TV background wall, etc. The first surface of the base plate is a pattern surface 10, and the focusing element 20 is superimposed on the first surface of the base plate and covers the pattern setting. The pattern is a textured pattern, and is not a solid color or gradient color pattern. The pattern can be: a photo, a cartoon, a landscape, a checkerboard, a line grid, etc. An embodiment of the pattern surface 10 can be a pattern printed on the bottom of the light-transmitting plate 21; it can also be a pattern drawn on a separate paper, and then the light-transmitting plate 21 is pressed on top.

[0044] In one embodiment, if Figures 4 to 7 As shown, the light concentrator 20 includes a light-transmitting plate 21 and a light-concentrating portion 22. The light-transmitting plate 21 is pressed against the bottom plate, and the light-concentrating portion 22 is arranged on a side of the light-transmitting plate 21 away from the bottom plate. In the present application, the light-concentrating portion 22 is an optical element with a converging function, which can be a convex lens 221, etc. In the present embodiment, the light-concentrating portion 22 is described in detail by taking the convex lens 221 as an example, but is not limited to the convex lens 221, and other optical elements with a converging function also fall within the protection scope of the present application.

[0045] Specifically, the light-transmitting plate 21 is used to transmit light, and the convex lens 221 can converge the light. The light emitted by the pattern enters the human eye after being converged to form a myopic defocus stimulus in front of the peripheral retina. One side of the convex lens 221 is a plane, and the other side is a convex arc surface, and the convex arc surface protrudes toward the side away from the bottom plate. This arrangement can achieve the convergence of the light of the pattern before entering the human eye. In some other embodiments, the convex lens 221 is arranged between the light-transmitting plate 21 and the bottom plate, and the convex arc surface of the convex lens 221 faces the side away from the bottom plate.

[0046] In one embodiment, if Figures 4 to 7 As shown, a plurality of convex lenses 221 are provided, and the plurality of convex lenses 221 are spaced apart from each other. The plurality of convex lenses 221 together form a light focusing portion 22 , and the convex surfaces of the plurality of convex lenses 221 together form a light focusing surface 201 .

[0047] Specifically, multiple convex lenses 221 can converge more light, resulting in a better light convergence effect. This arrangement can ensure that when the human eye observes the object 32, the light emitted by the pattern can form myopic defocus stimulation to the human eye, thereby continuously inhibiting the growth of the eye axis and protecting the human eye.

[0048] In one embodiment, if Figure 1 and Figure 8 As shown, the plurality of convex lenses 221 are distributed in a rectangular array, and the distance between any two adjacent convex lenses 221 is 3 mm to 5 mm.

[0049] Specifically, in the present embodiment, there are two groups of lens groups, each of which includes multiple rows of convex lenses 221. The multiple convex lenses 221 in the same group are distributed in a rectangular array, and the two lens groups are staggered in the left and right directions of the light concentrator 20, that is, the multiple convex lenses 221 in two adjacent rows are staggered, or the two lens groups are flush in the left and right directions of the light concentrator 20. In the up and down or left and right directions in the same plane, the distance between any two adjacent convex lenses 221 is 3.4 mm. This arrangement enables the multiple convex lenses 221 to be evenly arranged on the light-emitting side of the light-transmitting plate 21, thereby ensuring the focusing effect of the focusing surface 201, thereby ensuring the use effect of the light concentrator 20, and the multiple convex lenses 221 make the placement of the object of observation 32 on the focusing surface 201 more stable, and can abut against the convex arc surface of the convex lens 221 at any position, and the object of observation 32 will not be skewed.

[0050] In one embodiment, the plurality of convex lenses 221 are distributed in a circular array.

[0051] Specifically, there are multiple circular ring groups, each of which is provided with multiple convex lenses 221. The circular rings formed by each circular ring group are concentrically arranged, and the radii of the multiple circular ring groups are arranged to increase successively, that is, the multiple convex lenses 221 are distributed in a circular radial shape on the light-transmitting plate 21. Such an arrangement can reduce the number of some convex lenses 221, save costs, and ensure the converging effect of the middle area of ​​the light-transmitting plate 21 on light.

[0052] In one embodiment, if Fig. 9 As shown, the circumference of the light concentrator 20 is provided with an edge, and the edge is extended along the circumference of the light concentrator 20. The material of the light concentrator 20 is: PVC plastic, PMMA plastic, PC plastic or PS plastic.

[0053] Specifically, the edging is made of plastic material, which can be hard plastic or soft plastic. A circle of edging is provided around the periphery of the light focusing member 20 to protect the edge of the light focusing member 20, and the pattern surface extends to the edge of the edging. PVC plastic has good transparency, brightness, excellent wear resistance, impact resistance, and corrosion resistance; PMMA plastic has high transparency and gloss, and has excellent impact resistance, heat resistance, and weather resistance; PC plastic has extremely high strength and toughness, and has strong heat resistance, weather resistance, and impact resistance; PS plastic has low cost and good transparency and gloss.

[0054] In one embodiment, the convex lens 221 and the light-transmitting plate 21 are integrally formed, and the diameter of the root cut circle of the convex lens 221 is 2.5 mm to 3.5 mm.

[0055] Specifically, the material of the light-transmitting plate 21 and the convex lens 221 is PMMA, and the light-transmitting plate 21 and the convex lens 221 are integrally injection molded, and the diameter of the root cut circle of each convex lens 221 is 2.95 mm, so that the configuration can save costs, and there is no gap between the convex lens 221 and the light-transmitting plate 21, thereby ensuring the light transmission effect of the light-transmitting plate 21 and improving the use effect of the light-concentrating element 20. In some other embodiments, the convex lens 221 is an aspherical lens.

[0056] In one embodiment, the convex lens 221 is a Fresnel lens.

[0057] Specifically, all convex lenses 221 are Fresnel lenses, which are thinner and thus can reduce the overall volume of the focusing element 20, and are inexpensive, thus saving production costs. In some other embodiments, the convex lenses 221 are lenses with convex curved surfaces on both sides.

[0058] In one embodiment, if Figure 7 As shown, the maximum thickness of the focusing element 20 is 1 mm to 4 mm, and the sagittal height of the convex lens 221 is 0.5 mm to 1.5 mm.

[0059] Specifically, the distance from the pattern surface to the top surface of the convex lens 221 is 1mm to 4mm. Within this thickness range, the light concentrator 20 will not feel like a foreign body when used. In this embodiment, the thickness of the light concentrator 20 is 2.5mm, and the thickness of the convex lens 221 protruding from the light-transmitting plate is 0.97mm. This arrangement can ensure that the thickness of the light concentrator 20 is not too large, thereby making the volume of the light concentrator 20 smaller, saving production costs, and the light concentrator 20 will not be affected by its thickness when used.

[0060] In one embodiment, if Fig.10 and Fig.11 As shown, the light focusing portion 22 is a strip with an arc-shaped raised cross section.

[0061] Specifically, a plurality of raised strips are convexly provided on the light-transmitting plate 21 , the top of the strips are arc-shaped, and the plurality of strips are evenly spaced apart along the extending direction of the light-transmitting plate 21 , and the strips are straight strips or wavy strips.

[0062] In one embodiment, if Figure 5 and Figure 6 As shown, the peripheral myopic defocus stimulus generating device further includes a light-transmitting member 31, which is detachably mounted on the light-collecting surface 201, and the thickness of the light-transmitting member 31 can adjust the amount of defocus. The light-transmitting member 31 can fix the object 32 on the surface of the light-transmitting member 31.

[0063] Specifically, the light-transmitting member 31 is in the shape of a square frame, and a plurality of suction cups are connected to the bottom of the square frame, which can be adsorbed on the light-collecting surface 201 to fix the square frame. A clamping structure is provided inside the light-transmitting member 31, which can fix an object 32 such as an electronic device or a book, so that when the object 32 needs to be moved to a different position, it can also be fixed, and the object 32 will not be offset. In some other embodiments, the light-transmitting member 31 is fixed to the light-collecting surface 201.

[0064] Furthermore, in the present embodiment, a telescopic mechanism and a steering mechanism are provided on the side of the bottom plate away from the condenser 20, and the bottom plate is placed on the desktop through the telescopic mechanism. The telescopic mechanism includes a telescopic rod and a base that can be telescoped in the vertical direction of the desktop, and the base is placed on the desktop. The movable end of the telescopic rod is connected to the bottom plate, and the telescopic rod is installed on the base, so as to realize the position adjustment of the bottom plate in the height direction. The telescopic rod is connected to the bottom plate through the steering mechanism, and the steering mechanism is a universal ball mechanism, that is, the bottom plate can be rotated at multiple angles relative to the telescopic rod, so as to change the display angle of the bottom plate. This arrangement makes it easy for users to adjust the angle and height of the bottom plate in different usage environments so that the condenser 20 is in a suitable position for people to use.

[0065] The distance between the human eye and the fixation object 32 is D, the convergence of the fixation light entering the eye is -1 / D, the pattern on the base plate is imaged by the focusing element 20, the image distance is L, the convergence of the pattern light after entering the eye is 1 / (LD), and the peripheral myopic defocus stimulation is equal to the convergence of the pattern light minus the convergence of the fixation object 32 light, so the peripheral myopic defocus stimulation amount can be obtained as 1 / (LD)+1 / D, and the peripheral myopic defocus stimulation generating device has a better peripheral myopic defocus stimulation amount of 4D for the human eye.

[0066] In one embodiment, if Figure 1 As shown, the device for generating peripheral myopic defocus stimulation also includes a frame 30, which is arranged at the edge of the focusing piece 20 and the bottom plate and extends along the periphery of the focusing piece 20. The frame 30 is used to wrap the edge of the bottom plate and the focusing piece 20.

[0067] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for generating peripheral myopic defocus stimulation, characterized in that: include: A light concentrator, the light concentrator comprises a light-transmitting plate and a light-concentrating portion arranged on one side of the light-transmitting plate, the light-concentrating portion is provided with a light-concentrating surface, the light-transmitting plate is provided with a pattern surface on the side away from the light-concentrating portion, a gaze space and a defocused stimulation space are provided on the light-transmitting plate, and at least a portion of the projection of the gaze space coincides with the projection of the defocused stimulation space.

2. The device for generating peripheral myopic defocus stimulation according to claim 1, characterized in that: The light focusing part is a convex lens.

3. The device for generating peripheral myopic defocus stimulation according to claim 2, characterized in that: There are a plurality of convex lenses, and the plurality of convex lenses are arranged at intervals from each other.

4. The device for generating peripheral myopic defocus stimulation according to claim 3, characterized in that: The plurality of convex lenses are distributed in a rectangular array.

5. The device for generating peripheral myopic defocus stimulation according to claim 4, characterized in that: The distance between any two adjacent convex lenses is 3 mm to 5 mm.

6. The device for generating peripheral myopic defocus stimulation according to claim 3, characterized in that: The plurality of convex lenses are distributed in a circular array.

7. The device for generating peripheral myopic defocus stimulation according to claim 2, characterized in that: The diameter of the root cut circle of the convex lens is 2.5 mm to 3.5 mm; and / or, The convex lens has a sagittal height of 0.5 mm to 1.5 mm.

8. The device for generating peripheral myopic defocus stimulation according to claim 1, characterized in that: The maximum thickness of the light concentrator is 1 mm to 4 mm.

9. The device for generating peripheral myopic defocus stimulation according to claim 1, characterized in that: The light focusing portion and the light-transmitting plate are integrally formed.

10. The device for generating peripheral myopic defocus stimulation according to claim 1, characterized in that: The light focusing part is a Fresnel lens.

11. The device for generating peripheral myopic defocus stimulation according to claim 1, characterized in that: The light focusing portion is a strip with an arc-shaped raised cross section.

12. The device for generating peripheral myopic defocus stimulation according to any one of claims 1 to 11, characterized in that: The device for generating peripheral myopic defocus stimulation also includes a light-transmitting member, and the light-transmitting member is detachably mounted on the surface of the light-focusing portion.

13. The device for generating peripheral myopic defocus stimulation according to claim 12, characterized in that: The peripheries of the light concentrating member and the light transmissive member are provided with edging, and the edging is extended along the peripheries of the light concentrating member and the light transmissive member.

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