Point diffusion lens for optical imaging

Abstract

The invention relates to a point diffusion lens for optical imaging, and belongs to the technical field of optical lenses, the point diffusion lens comprises a lens body, the outer surface of the lens body is sleeved with a stabilizing frame for improving the stability of the lens body, the top of the stabilizing frame is in threaded connection with a plurality of stabilizing bolts, and the lens body comprises an optical area. A scattering area is fixed on the periphery of the optical area, and a plurality of glass beads are embedded in the scattering area. According to the point diffusion lens for optical imaging, through cooperation of the transition area and the stable area, the effect of smooth transition from the optical area to the scattering area is achieved, so that the use experience of a user is improved, the splitting feeling is reduced, the uniform light scattering effect is ensured, and the visual comfort of a wearer is improved; the stabilizing frames and the stabilizing bolts are matched to improve the overall stability, the stabilizing frames can improve the stability of the lenses, the threaded strips are fixed to the outer sides of the stabilizing frames, the lenses can be installed by rotating the lenses to the glasses frame, and installation is easy and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to a point diffusion lens for optical imaging. Background Art

[0002] Myopia is one of the most common vision problems worldwide, especially among adolescents and children. The incidence of myopia is increasing year by year. The occurrence and development of myopia is closely related to the growth of axial length of the eye. Conventional myopia lenses mainly improve vision through optical correction, but cannot effectively prevent the occurrence of myopia or slow down the progression of myopia. Some studies have shown that by controlling the visual signals in the peripheral area of the retina, the development of myopia can be effectively slowed, and thus point diffusion lenses came into being.

[0003] Point diffusion lenses reduce the contrast of retinal imaging by scattering light, simulating a natural low-contrast environment, and reducing the retinal stimulation signal for axial growth, thereby delaying the progression of myopia. The central transparent area ensures the clarity of the main visual area, and the peripheral scattering point design does not affect daily vision. The adaptability is better than traditional defocus lenses. Existing point diffusion lenses achieve the purpose of reducing contrast through the combination of transparent areas and refractive areas.

[0004] However, the lens is not smooth enough. Due to the large difference in refractive index between the high refractive layer and the low refractive layer, a sense of separation may be felt during actual use. Therefore, a point diffusion lens for optical imaging is proposed to solve the above problem. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a point diffusion lens for optical imaging, which has advantages such as smooth transition and solves the problem that the existing lens has an unclear transition from the transparent area to the scattering area.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a point diffusion lens for optical imaging, comprising a lens body, wherein the outer surface of the lens body is provided with a stabilizing frame for improving the stability of the lens body, and the top of the stabilizing frame is threadedly connected to a plurality of stabilizing bolts; The lens body comprises an optical area, a scattering area is fixed on the periphery of the optical area, and a plurality of glass beads are inlaid in the scattering area.

[0007] Furthermore, the diameter of the optical area is 6 mm, the scattering area is ring-shaped, and the inner diameter of the scattering area is 6 mm.

[0008] Furthermore, the scattering region includes a transition region fixed to the periphery of the optical region, and a stable region is fixed to the periphery of the transition region.

[0009] Furthermore, the transition region and the stable region are both annular, the inner diameter of the transition region is 6 mm, and the outer diameter of the transition region is 12 mm.

[0010] Furthermore, the inner diameter of the stabilizing area is 12 mm, and the outer side of the stabilizing area is in contact with the stabilizing frame.

[0011] Furthermore, each of the glass microbeads is spherical, and the diameter of each of the glass microbeads is 0.001 mm to 0.5 mm.

[0012] Furthermore, the density of the multiple glass beads embedded in the transition area gradually increases from the inside to the periphery of the transition area, the overall density of the multiple glass beads embedded in the stable area remains unchanged, and the spacing between the multiple glass beads is 0.05 mm to 1 mm.

[0013] Furthermore, the stabilizing frame includes an upper half ring, the bottom of the upper half ring is abutted against the lower half ring, the opposite sides of the upper half ring and the lower half ring are fitted with the lens body, the top of the upper half ring is provided with a plurality of stepped holes, and the lower half ring is provided with a plurality of threaded holes, the number of which is the same as the stepped holes and which are opposite to the stepped holes, each of the stabilizing bolts passes through the stepped hole and extends into the threaded hole and is threadedly connected to the threaded hole.

[0014] Furthermore, the diameters of the glass microbeads increase sequentially from close to the optical region to far away from the optical region.

[0015] Compared with the prior art, the present invention provides a point diffusion lens for optical imaging, which has the following beneficial effects: 1. This point diffusion lens for optical imaging achieves a smooth transition from the optical area to the scattering area by coordinating the transition area and the stable area, thereby improving the user experience, reducing the sense of fragmentation, ensuring a uniform light scattering effect and improving the wearer's visual comfort.

[0016] 2. The point diffusion lens used for optical imaging improves overall stability through the combination of a stabilizing frame and stabilizing bolts. The stabilizing frame can effectively improve the stability of the lens. At the same time, since the outer side of the stabilizing frame is fixed with a threaded strip, the lens can be installed by simply rotating it onto the glasses frame, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a three-dimensional cross-sectional view of the present invention; Figure 3 Schematic diagram of the structure of the lens body of the present invention.

[0018] In the figure: 1 lens body, 101 optical area, 102 scattering area, 1021 transition area, 1022 stabilization area, 103 glass beads, 2 stabilization frame, 201 upper half ring, 202 lower half ring, 3 stabilization bolts. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 3 In this embodiment, a point diffusion lens for optical imaging includes a lens body 1. The outer surface of the lens body 1 is provided with a stabilizing frame 2 for improving the stability of the lens body 1. The stabilizing frame 2 can improve the stability of the lens body 1, and the stabilizing bolts 3 can improve the stability of the stabilizing frame 2. The top of the stabilizing frame 2 is threadedly connected with multiple stabilizing bolts 3.

[0021] In addition, the lens body 1 includes an optical zone 101, a scattering zone 102 is fixed on the periphery of the optical zone 101, and a plurality of glass beads 103 are inlaid in the scattering zone 102. The glass beads 103 refract light. The optical zone 101 and the scattering zone 102 have the same refractive index, while the refractive index of the glass beads 103 differs from that of the optical zone 101 and the scattering zone 102 by 0.1 to 0.4. This method can enhance the light scattering effect. The diameter of the optical zone 101 is 6 mm, the scattering zone 102 is annular, and the inner diameter of the scattering zone 102 is 6 mm. The diameter of the optical zone 101 is 6 mm, which can ensure that the wearer can obtain clear central vision under normal use conditions.

[0022] It should be further explained that the scattering area 102 includes a transition area 1021 fixed to the periphery of the optical area 101, and a stabilization area 1022 is fixed to the periphery of the transition area 1021. The transition area 1021 and the stabilization area 1022 are both annular. By cooperating with the transition area 1021 and the stabilization area 1022, a smooth transition effect of the refractive index can be achieved. The inner diameter of the transition area 1021 is 6 mm, the outer diameter of the transition area 1021 is 12 mm, and the inner diameter of the stabilization area 1022 is 12 mm. The outer side of the stabilization area 1022 is in contact with the stabilization frame 2, and the stabilization frame 2 can provide good support for the stabilization area 1022, thereby fixing the lens body 1.

[0023] It can be seen that each glass bead 103 is spherical, and the spherical glass bead 103 can ensure uniform light scattering effect. The diameter of each glass bead 103 is 0.001 mm to 0.5 mm. The density of the multiple glass beads 103 embedded in the transition area 1021 gradually increases from the inside to the periphery of the transition area 1021. Since the glass beads 103 are the key to achieving scattered light, the increase in the density of the glass beads 103 can achieve a gradually enhanced scattering effect, thereby avoiding the visual tearing caused by the sudden change of the refractive index. The overall density of the multiple glass beads 103 embedded in the stable area 1022 remains unchanged, and the spacing between the multiple glass beads 103 is 0.05 mm to 1 mm.

[0024] In addition, the diameters of the glass beads 103 increase sequentially from being closer to the optical region 101 to being farther from the optical region 102 .

[0025] It should be noted that the glass beads 103 can also be square or other shapes. When the diameter or shape of the glass beads 103 changes, its refractive index will change. By coordinating multiple glass beads 103 and changing the shape and diameter of multiple glass beads 103, it can better adapt to different users and improve the use effect.

[0026] In this embodiment, the central optical area 101 has a diameter of 6 mm and is made of completely transparent optical material to ensure that the wearer can obtain optimal visual clarity when observing objects directly in front of them. The scattering area 102 and the glass beads 103 cooperate to reduce the visual signal contrast in the peripheral area of the retina by scattering the incident light.

[0027] It can be understood that the lens of the present invention, through its specific optical design, can provide clear central vision while effectively controlling the contrast of visual signals in the peripheral area of the retina, thereby preventing the occurrence of myopia and slowing down the progression of myopia. The lens is particularly suitable for adolescents and children and has a good myopia control effect.

[0028] Please refer again Figures 1 to 3 In order to improve the overall stability, the stabilizing frame 2 in this embodiment includes an upper half ring 201, the bottom of the upper half ring 201 is abutted against the lower half ring 202, and the opposite side of the upper half ring 201 and the lower half ring 202 is in contact with the lens body 1. Through the cooperation of the upper half ring 201 and the lower half ring 202, effective constraint on the lens body 1 can be achieved, thereby improving the stability of the lens body 1. A plurality of stepped holes are provided on the top of the upper half ring 201, and a plurality of threaded holes with the same number as the stepped holes and facing the stepped holes are provided on the lower half ring 202. Each stabilizing bolt 3 passes through the stepped hole and extends into the threaded hole and is threadedly connected to the threaded hole. Using the stepped hole to install the stabilizing bolt 3 can increase the flatness of the surface of the upper half ring 201 and improve the overall aesthetics.

[0029] In this embodiment, when actually used, it is only necessary to place the lens body 1 between the upper half ring 201 and the lower half ring 202, and then use the fixing bolts 3 to effectively fix it. The outer sides of the upper half ring 201 and the lower half ring 202 are fixed with threaded strips, which can be more conveniently fixed to the frame through the threaded strips.

[0030] It is understandable that the refractive index of the glass beads 103 is different from that of the optical area 101 and the scattering area 102, thereby enhancing the light scattering effect. Multiple glass beads 103 are distributed in a regular array to ensure uniform light scattering effect without affecting the wearer's visual comfort.

[0031] The working principle of the above embodiment is: When the user wears the lens, external light can enter the eyeball through the optical area 101, and at the same time the outer scattering area 102 can gradually block the external visual signals, ensuring clear central vision while effectively controlling the contrast of peripheral visual signals, achieving a good myopia control effect, preventing the occurrence of myopia and slowing down the progression of myopia, and through the cooperation of the upper half ring 201 and the lower half ring 202, a reliable and stable support force can be provided to the lens body 1, and the threaded strip fixed on the outside of the stabilizing frame 2 can facilitate the installation of the point diffusion lens on the glasses frame.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A point diffusion lens for optical imaging, comprising a lens body (1), characterized in that: The outer surface of the lens body (1) is provided with a stabilizing frame (2) for improving the stability of the lens body (1), and the top of the stabilizing frame (2) is threadedly connected with a plurality of stabilizing bolts (3); The lens body (1) comprises an optical area (101), a scattering area (102) is fixed on the periphery of the optical area (101), and a plurality of glass microbeads (103) are embedded in the scattering area (102).

2. The point spread lens for optical imaging according to claim 1, characterized in that: The diameter of the optical region (101) is 6 mm, the scattering region (102) is annular, and the inner diameter of the scattering region (102) is 6 mm.

3. The point spread lens for optical imaging according to claim 1, characterized in that: The scattering region (102) comprises a transition region (1021) fixed to the periphery of the optical region (101), and a stable region (1022) is fixed to the periphery of the transition region (1021).

4. The point spread lens for optical imaging according to claim 3, characterized in that: The transition region (1021) and the stable region (1022) are both annular, the inner diameter of the transition region (1021) is 6 mm, and the outer diameter of the transition region (1021) is 12 mm.

5. The point spread lens for optical imaging according to claim 4, characterized in that: The inner diameter of the stabilizing region (1022) is 12 mm, and the outer side of the stabilizing region (1022) is in contact with the stabilizing frame (2).

6. The point spread lens for optical imaging according to claim 1, characterized in that: Each of the glass microbeads (103) is spherical, and the diameter of each of the glass microbeads (103) is 0.001 mm to 0.5 mm.

7. The point spread lens for optical imaging according to claim 3, characterized in that: The density of the multiple glass microbeads (103) embedded in the transition region (1021) gradually increases from the inside to the periphery of the transition region (1021), the overall density of the multiple glass microbeads (103) embedded in the stable region (1022) remains unchanged, and the spacing between the multiple glass microbeads (103) is 0.05 mm to 1 mm.

8. The point spread lens for optical imaging according to claim 1, characterized in that: The stabilizing frame (2) comprises an upper half ring (201), the bottom of the upper half ring (201) is in contact with a lower half ring (202), and the opposite sides of the upper half ring (201) and the lower half ring (202) are in contact with the lens body (1). The top of the upper half ring (201) is provided with a plurality of stepped holes, and the lower half ring (202) is provided with a plurality of threaded holes, the number of which is the same as that of the stepped holes and which are directly opposite to the stepped holes. Each of the stabilizing bolts (3) passes through the stepped hole and extends into the threaded hole and is threadedly connected to the threaded hole.

9. The point spread lens for optical imaging according to claim 1, characterized in that: The diameters of the glass microbeads (103) increase sequentially from those close to the optical region (101) to those far away from the optical region (102).

Images