Light feeding glasses

Abstract

The utility model discloses a pair of light feeding glasses, and belongs to the technical field of optics. The pair of light feeding glasses comprises a glasses frame, glasses legs and lenses, and further comprises a light source assembly which is arranged on the glasses frame or the glasses legs and is at least used for outputting red light rays; the light uniformizing element is arranged on the light emitting side of the light source assembly and used for receiving the light emitted by the light source assembly so as to form uniform light spots; the diffractive optical element is arranged on the lens in an attached mode and used for receiving the uniform light spots from the light uniformizing element and conducting direction deflection on the uniform light spots so that the uniform light spots can be projected to pupils of a user. The nursing light equipment is designed to be in a glasses form, red light irradiation treatment is carried out through a simple light path, the weight of the nursing light glasses can be reduced, portability and wearing comfort are improved, a user can conveniently observe the external environment, and daily activities are not limited.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, and more particularly to a pair of light-feeding glasses. Background Art

[0002] Research has shown that dopamine, a key neurotransmitter in the retina, plays a crucial role in inhibiting the development of myopia. Myopia affects the homeostasis of retinal dopamine D1 and D2 receptors. Furthermore, when close work leads to myopia, a decrease in choroidal blood supply causes scleral hypoxia, which is a key trigger for extracellular matrix remodeling in the development of myopia. Based on these findings, we propose a systematic model for the pathogenesis of myopia: the defocus signal from close work disrupts retinal dopamine receptor homeostasis, leading to a decrease in choroidal blood supply, scleral hypoxia, and a decrease in scleral collagen, which in turn triggers scleral extracellular matrix remodeling and ultimately myopia.

[0003] Light-feeding devices can effectively prevent and control myopia in adolescents and children. Their main function is to use red light of appropriate intensity to illuminate the retina, which can effectively supplement the lack of healthy light exposure for adolescents and children in a short period of time, improve choroidal blood supply, allow the sclera to obtain more nutrients and oxygen, and secrete more dopamine. This substance will act on the eyeball, and the eyeball will slowly return to a normal state. Existing light-feeding devices include VR glasses and desktop microscopes. Desktop microscopes are too large, inconvenient to carry, and have low wearing comfort. VR glasses are expensive, and these two types of light-feeding devices will completely block the user's field of vision after wearing, making it inconvenient for the user to move during use and restricting the user's daily activities. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a kind of light-absorbing glasses that can be used flexibly and are highly comfortable to wear.

[0005] In order to solve the above problems, the utility model provides a kind of light-feeding glasses, including a frame, temples and lenses, including a light source assembly, which is arranged on the frame or the temples and is at least used to output red light; a light uniforming element, which is arranged on the light output side of the light source assembly, is used to receive the light emitted by the light source assembly to form a uniform light spot; a diffraction optical element, which is fitted on the lens, is used to receive the uniform light spot from the light uniforming element and deflect its direction so that the uniform light spot is projected onto the user's pupil.

[0006] In an optional embodiment of the present application, the light homogenizing element includes at least one of a diffuser, a light homogenizer, and a microlens array.

[0007] In an optional embodiment of the present application, the lens is a light waveguide lens, and the uniform light spot emitted by the light homogenizing element enters the light waveguide lens and is transmitted to the diffraction optical element in the form of total reflection.

[0008] In an optional embodiment of the present application, the light source assembly outputs red light, green light and / or blue light, and the diffraction optical element includes a first diffraction optical element and a second diffraction optical element, the first diffraction optical element responds to red light wavelengths, and the second diffraction optical element responds to green light and / or blue light wavelengths, and is used to project green light and / or blue light onto the fovea of ​​the user's fundus to form a visual mark point.

[0009] In an optional embodiment of the present application, the light source assembly is an LBS, and the first diffractive optical element is arranged around the second diffractive optical element.

[0010] In an optional embodiment of the present application, the light source assembly is one of LED, OLED, MicroLED, MicroOLED, and LCoS, and the first diffractive optical element and the second diffractive optical element are stacked and bonded on the lens.

[0011] In an optional embodiment of the present application, the central pixel of the light source assembly outputs green light and / or blue light, and the light source assembly outputs red light away from the central pixel area.

[0012] In an optional embodiment of the present application, a collimating lens is further included, and the collimating lens is arranged on the light-emitting side of the light-homogenizing element so that the uniform light spot emitted by the light-homogenizing element is incident on the diffractive optical element as parallel light.

[0013] In an optional embodiment of the present application, the red light emitted by the light source assembly has a wavelength of 630-680 nm.

[0014] In an optional embodiment of the present application, a light shielding sheet is provided on the frame in an openable or detachable manner.

[0015] The light-feeding glasses provided by the present application include a light source assembly, which is arranged on the frame or the temples and is used to output at least red light; a light-homogenizing element, which is arranged on the light-emitting side of the light source assembly and is used to receive the light emitted by the light source assembly to form a uniform light spot; a diffraction optical element, which is fitted on the lens and is used to receive the uniform light spot from the light-homogenizing element and deflect the direction thereof so as to project the uniform light spot to the user's pupil. The light-feeding glasses of the present application design the light-feeding device in the form of glasses and perform red light irradiation therapy through a simple optical path, which can reduce the weight of the light-feeding glasses, improve portability and wearing comfort, and facilitate users to observe the external environment without restrictions on daily activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the light-feeding glasses provided in an embodiment of the present application;

[0018] Figure 2 The second schematic diagram of the light-feeding glasses provided in an embodiment of the present application;

[0019] Figure 3 This is the third schematic diagram of the light-feeding glasses provided in an embodiment of the present application.

[0020] Description of the numbers in the figure:

[0021] 1-light source assembly; 2-light homogenizing element; 3-diffractive optical element; 31-first diffractive optical element; 32-second diffractive optical element. DETAILED DESCRIPTION

[0022] By irradiating the retina with red light of appropriate intensity, the light-feeding device can improve blood supply to the choroid, allowing the sclera to receive more nutrients and oxygen, and secrete more dopamine. This substance then acts on the eyeball, slowly returning the eyeball to a normal state, effectively preventing and controlling myopia in adolescents and children. Existing light-feeding devices are divided into VR glasses and desktop microscope types. Desktop microscope-type devices are too large, inconvenient to carry, and lack wearing comfort. VR glasses-type light-feeding devices are expensive, and both types of light-feeding devices completely block the user's field of vision when worn, making it inconvenient for the user to move around and restricting their daily activities.

[0023] To this end, the present application provides a light-receiving glasses, which designs the light-receiving device in the form of glasses and performs red light irradiation therapy through a simple optical path. This can reduce the weight of the light-receiving glasses, improve portability and wearing comfort, and make it convenient for users to observe the external environment without restrictions on daily activities.

[0024] To help those skilled in the art better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only a portion of the present invention, not all of the embodiments. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] In a specific embodiment of the present application, the light-feeding glasses include a frame, temples and lenses. The lenses can be plano lenses or refractive lenses. When the lenses are plano lenses, a refractive lens can be additionally provided on one side of the plano lenses according to actual usage requirements. The glasses also include a light source assembly 1, which is provided on the frame or temples and is at least used to output red light; a uniform light element 2, which is provided on the light output side of the light source assembly 1 and is used to receive the light emitted by the light source assembly 1 to form a uniform light spot; a diffraction optical element 3, which is fitted on the lens and is used to receive the uniform light spot from the uniform light element 2 and deflect its direction so as to project the uniform light spot onto the user's pupil.

[0026] by Figure 1 The following is an exemplary description. Figure 1 In the figure, the light source assembly 1 and the light homogenizing element 2 are both arranged on the temples. The red light emitted by the light source assembly 1 is homogenized by the light homogenizing element 2 and then transmitted to the diffraction optical element 3. The diffraction optical element 3 diffracts the red light to the user's pupil for red light irradiation therapy.

[0027] In this embodiment, there is no specific limitation on the distance between the light homogenizing element 2 and the light source assembly 1, which can be as follows: Figure 2 and 3 The fitting setting shown can also be as follows Figure 1 As shown in the gap setting, it can be understood that the smaller the distance between the light homogenizing element 2 and the light source assembly 1, the more conducive it is to shortening the transmission path of light, making the light homogenizing element 2 and the light source assembly 1 more compact, occupying less space on the temples or frames, and being conducive to the light homogenizing element 2 better receiving the light from the light source assembly 1, avoiding light loss.

[0028] In this embodiment, there is no specific limitation on the shape, size and position of the diffractive optical element 3 on the lens, as long as it can receive as much red light as possible and project it to the user's pupil.

[0029] In an optional embodiment of the present application, the light homogenizing element 2 includes at least one of a diffuser, a light homogenizer, and a microlens array. The light output by the light source assembly 1 is homogenized by the light homogenizing element 2 to produce a uniform light spot, which is then projected onto the user's pupil via the diffractive optical element 3, ensuring uniform light energy and improving treatment safety. The light homogenizing element 2 is preferably a diffuser, which makes the output light energy more dispersed and uniform, greatly improving treatment safety.

[0030] In an optional embodiment of the present application, the lens is a waveguide lens. The uniform light spot emitted by the light homogenizing element 2 (via the coupling element) enters the waveguide lens and is transmitted to the diffractive optical element 3 in the form of total internal reflection. The provision of the waveguide lens can, on the one hand, increase the transmission path of the light path, facilitating the design of a compact optical path structure. On the other hand, compared with direct transmission of light to the diffractive optical element 3, total internal reflection transmission through the waveguide lens increases optical loss, which can reduce the light energy reaching the user's fundus and improve the safety of treatment.

[0031] During red light irradiation therapy, the most sensitive part of the retina is the fovea, a small, shallow, funnel-shaped depression at the posterior pole of the retina with a diameter of approximately 2 mm, also known as the fovea macula. The retina around the fovea is slightly thicker, while the retina at the fovea is thinner, containing only cone cells. Therefore, the fovea is the area with the strongest retinal visual function. To prevent damage to the fovea due to eye movement during red light irradiation therapy, thereby affecting the treatment effect, in an optional embodiment of the present application, the light source assembly 1 outputs red light, green light, and / or blue light, and the diffractive optical element 3 includes a first diffractive optical element 31 and a second diffractive optical element 32. The first diffractive optical element 31 responds to red light wavelengths, and the second diffractive optical element 32 responds to green and / or blue light wavelengths, for projecting green and / or blue light onto the fovea macula of the user's fundus to form a visual target point. The red light spot is irradiated around the fovea macula to perform red light therapy, while avoiding direct exposure of the red light to the fovea macula, reducing the risk of damage to the fovea macula. A green light spot, a blue light spot, or a mixed light spot formed by green and blue light is irradiated onto the fovea of ​​the retina to form a visual mark. During the red light treatment, the user only needs to look at the visual mark to avoid the user turning their eyeballs and causing damage to the fovea of ​​the retina due to red light irradiation.

[0032] like Figure 2 As shown, in an optional embodiment of the present application, the light source assembly 1 is an LBS, and the first diffractive optical element 31 is arranged around the second diffractive optical element 32.

[0033] like Figure 3 As shown, in an optional embodiment of the present application, the light source assembly 1 is one of LED, OLED, MicroLED, MicroOLED, LCoS, preferably MicroOLED, and the first diffractive optical element 31 and the second diffractive optical element 32 are stacked and bonded on the lens.

[0034] The central pixel of the light source assembly 1 outputs green and / or blue light, and the light source assembly 1 outputs red light in areas away from the central pixel. To ensure that the light output by the central pixel can both guide vision and prevent damage to the fovea, in this embodiment, the light energy output by the central pixel is lower than the light energy output by its surrounding pixels, or the diffraction efficiency of the second diffractive optical element 32 is lower than the diffraction efficiency of the first diffractive optical element 31. This reduces the light energy reaching the user's fovea and prevents damage to the fovea.

[0035] The optical element 2 further includes a collimating lens, which is arranged on the light-emitting side of the light-homogenizing element 2 so that the uniform light spot emitted by the light-homogenizing element 2 is incident on the diffractive optical element 3 as parallel light.

[0036] The wavelength of the red light emitted by the light source assembly 1 is 630-680 nm. Specifically, the wavelength of the red light can be 630 nm, 650 nm, or 680 nm. Preferably, the wavelength of the red light is 650 nm.

[0037] In order to prevent external ambient light from irradiating the user's fundus and affecting the effect of red light therapy, in an optional embodiment of the present application, a light shielding sheet is provided on the frame in an openable or detachable manner. When performing red light therapy, the light shielding sheet can be closed or installed on the frame to block external ambient light from entering the human eye, and the red light therapy effect is better. After the red light irradiation therapy is completed, the light shielding sheet can be opened or removed from the frame, and the user's vision is not blocked and normal activities can be carried out. Specifically, the light shielding sheet can be rotatably connected to the frame by a rotating shaft, a hinge or other structure to achieve rotational opening and closing. The opening and closing method is not specifically limited. For example, the light shielding sheet can be set on the upper or lower frame of the frame to achieve upper and lower opening and closing, or it can be set on the left and right frames of the frame to achieve left and right opening and closing; or the light shielding sheet can be detachably connected to the frame by a buckle, a bolt or other structure.

[0038] To sum up, the light-feeding glasses in this application design the light-feeding device in the form of glasses, and perform red light irradiation therapy through a simple optical path, which can reduce the weight of the light-feeding glasses, improve portability and wearing comfort, and make it convenient for users to observe the external environment, without restrictions on daily activities.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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 "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device comprising a series of elements are inherent to the elements. In the absence of further restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. In addition, the above-mentioned technical solutions provided in the embodiments of the present application are not described in detail in accordance with the corresponding technical solutions in the prior art to achieve the same principle, so as to avoid excessive elaboration.

[0040] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pair of light-feeding glasses, comprising a frame, temples and lenses, characterized in that: include: A light source assembly is provided on the frame or the temples and is used to output at least red light; a light homogenizing element, disposed on the light-emitting side of the light source assembly, for receiving the light emitted by the light source assembly to form a uniform light spot; The diffractive optical element is attached to the lens and is used to receive the uniform light spot from the light homogenizing element and deflect the direction of the uniform light spot so as to project the uniform light spot to the user's pupil.

2. The light-feeding glasses according to claim 1, characterized in that: The light homogenizing element includes at least one of a diffuser, a light homogenizer, and a microlens array.

3. The light-feeding glasses according to claim 1, characterized in that: The lens is a light waveguide lens, and the uniform light spot emitted by the light homogenizing element enters the light waveguide lens and is transmitted to the diffraction optical element in the form of total reflection.

4. The light-feeding glasses according to claim 1, characterized in that: The light source assembly outputs red light, green light and / or blue light, and the diffractive optical element includes a first diffractive optical element and a second diffractive optical element. The first diffractive optical element responds to red light wavelengths, and the second diffractive optical element responds to green light and / or blue light wavelengths, and is used to project green light and / or blue light onto the fovea of ​​the user's fundus to form a visual mark point.

5. The light-feeding glasses according to claim 4, characterized in that: The light source assembly is an LBS, and the first diffractive optical element is arranged around the second diffractive optical element.

6. The light-feeding glasses according to claim 4, characterized in that: The light source assembly is one of LED, OLED, MicroLED, MicroOLED, and LCoS, and the first diffractive optical element and the second diffractive optical element are stacked and bonded on the lens.

7. The light-feeding glasses according to claim 6, characterized in that: The central pixel of the light source assembly outputs green light and / or blue light, and the light source assembly outputs red light in an area deviating from the central pixel.

8. The light-feeding glasses according to claim 1, characterized in that: It also includes a collimating lens, which is arranged on the light-emitting side of the light-homogenizing element so that the uniform light spot emitted by the light-homogenizing element is incident on the diffractive optical element as parallel light.

9. The light-feeding glasses according to claim 1, characterized in that: The wavelength of the red light emitted by the light source component is 630-680nm.

10. The light-feeding glasses according to claim 1, characterized in that: The mirror frame is provided with a light shielding sheet which can be opened and closed or detachably provided.

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