Red light filtering glasses

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By using converging lenses and collimating lenses in glasses combined with red light filter materials or filters to collect red light from natural light, the problems of instability and large volume of laser or LED light sources in existing ophthalmic phototherapy products are solved. More efficient visual fatigue relief and eye vision improvement effects are achieved.

CN222324128UActive Publication Date: 2025-01-10SUZHOU JUSHI SOUND & OPTOELECTRONICS TECH CO LTD +1

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Patent Information

Application Number: CN202420286308.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-02-06
Publication Date: 2025-01-10
Estimated Expiration: 2034-02-06

AI Technical Summary

Technical Problem

The existing eye-view treatment products are difficult to effectively alleviate visual fatigue and improve eye-view due to insufficient instability and safety of laser or LED light sources, and are large in size and inconvenient to use.

Method used

Design a red light filter glasses, using converging lenses and collimating lenses combined with red light filter materials or filters, collect red light in natural light through converging and collimating light paths, reduce dependence on eye vision, improve stability and Safety while reducing glasses size.

Benefits of technology

Without the need for laser or LED light sources, the red light collection power is significantly improved, visual fatigue is alleviated, eye vision is improved, glasses are improved, and glasses are safe, and volume is reduced.

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Abstract

The utility model relates to the technical field of ophthalmology medical instruments, and discloses a pair of red light filtering glasses, which comprises a glasses frame and a fixing piece, the glasses frame is fixed at eyes through the fixing piece, a convergence lens is arranged on the glasses frame, and a collimation lens is arranged on the inner side of the convergence lens; the converging lens or the collimating lens is made of a red light filtering material, or a filtering plate is arranged on the outer side of the converging lens or between the converging lens and the collimating lens or on the inner side of the collimating lens; the convergence lens is used for converging received light beams to the collimation lens, the collimation lens is used for collimating the light beams converged by the convergence lens, the area of the convergence lens is larger than that of the collimation lens, and the filter is used for acquiring and transmitting red light in the light beams. The stability and the safety are improved, and the size of the glasses is reduced.

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Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic medical equipment, in particular to a pair of red light filtering glasses. Background Art

[0002] Red light eye treatment is a new method that irradiates the retina with light of a specific wavelength, causing the choroid in the center of the macula to thicken, provide more oxygen supply, improve scleral hypoxia, control axial length growth, relieve visual fatigue, and play a certain role in assisting the improvement of eye vision.

[0003] Since the intensity of red light in natural light is low, conventional ophthalmology devices or other ophthalmic light therapy products usually use a laser or LED light source to emit a light beam, and use multiple optical devices to even the light to obtain the required even light spot. However, due to the lack of stability and safety of the laser, and the presence of the light source, the overall space is large and inconvenient to use.

[0004] Therefore, there is an urgent need for a passive solution that can collect red light from visible light sources such as sunlight to relieve visual fatigue and thus have a certain effect in assisting the improvement of eye vision. Utility Model Content

[0005] In view of this, the utility model provides a red light filtering glasses, which can overcome the technical problems in the prior art that the ophthalmic phototherapy products need to be equipped with laser or LED light sources, resulting in low stability and safety, and large size.

[0006] The first aspect of the utility model provides a red light filtering glasses, which are used for relieving visual fatigue and assisting in improving eye vision, and include a frame and a fixing part, wherein the frame is fixed to the eye by the fixing part, and a converging lens is provided on the frame, and a collimating lens is provided on the inner side of the converging lens; the converging lens or the collimating lens is made of red light filtering material, or a filter is provided on the outer side of the converging lens or between the converging lens and the collimating lens or on the inner side of the collimating lens; the converging lens is used to converge the received light beam onto the collimating lens, and the collimating lens is used to collimate the light beam converged by the converging lens, the area of the converging lens is larger than the area of the collimating lens, and the filter is used to obtain and transmit the red light in the light beam.

[0007] Optionally, the red light filter glasses further include a fixing frame, the fixing member is a temple, one end of the fixing frame is connected to the frame or the temple, and the other end of the fixing frame is connected to the collimating lens.

[0008] Optionally, the filter is attached to the inner side or outer side of the converging lens, or the filter is attached to the inner side or outer side of the collimating lens.

[0009] Optionally, the filter is fixed to the inner side or outer side of the converging lens by optical glue, or the filter is fixed to the inner side or outer side of the collimating lens by optical glue.

[0010] Optionally, the converging lens is a Fresnel lens.

[0011] Optionally, the converging lens is a convex lens.

[0012] Optionally, the collimating lens is a concave lens.

[0013] Optionally, the converging lens has a diameter of 3 cm to 6 cm, and the collimating lens has a diameter of 5 mm to 3 cm.

[0014] Optionally, the central wavelength of the red light transmitted by the red light filter material or the filter is 650 nm.

[0015] Optionally, the focal length of the converging lens is between 0 cm and 100 cm, the focal length of the collimating lens is between -100 cm and 0 cm, and the distance between the converging lens and the collimating lens is between 0 cm and 20 cm.

[0016] The red light filtering glasses of the utility model have at least the following beneficial effects:

[0017] The utility model discloses a red light filtering glasses, which are provided with a converging lens on a frame, a collimating lens on the inner side of the converging lens, and the converging lens or the collimating lens is made of red light filtering material, or a filter is provided on the outer side of the converging lens or between the converging lens and the collimating lens or on the inner side of the collimating lens, and the filter transmits red light and filters out light of other bands, thereby achieving the effect of collecting red light. Since the area of the converging lens is larger than that of the collimating lens, when the light beam is incident, the converging lens can converge more red light onto the collimating lens, and the light is collimated into parallel light by the collimating lens and enters the pupil. In this way, under the same incident conditions, the power of the collected red light can be greatly improved, and the effects on auxiliary treatment of eye vision or relief of visual fatigue can be greatly improved. Therefore, the red light filtering glasses of the utility model do not need to be provided with a light source such as a laser or an LED, and the stability and safety are improved, and the volume of the glasses is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A top view of the red light filter glasses according to an embodiment of the utility model;

[0020] Figure 2 This is a front view of the red light filter glasses according to an embodiment of the utility model;

[0021] Figure 3 A light path diagram of the red light filter glasses of an embodiment of the utility model;

[0022] Figure 4 Another optical path diagram of the red light filter glasses according to an embodiment of the utility model;

[0023] Description of reference numerals:

[0024] 1-incident light beam; 2-Fresnel lens; 3-filter; 4-concave lens; 5-convex lens; 6-frame; 7-tip of the mirror; 8-fixing frame. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0026] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] At present, conventional phototherapy devices or other ophthalmic optotherapy products usually use a light beam emitted by a laser or LED light source, and use multiple optical devices to perform uniform light processing to obtain the required uniform light spot. However, due to the lack of certain stability and safety of the laser, and the existence of the light source, the overall space is large, which is inconvenient to use. If a laser or LED light source is not used, and the filter 3 is used directly as a lens, the light beam enters the human eye in the form of parallel light, and the actual light power received by the pupil is limited, averaging on the order of 4 mm in diameter, which cannot meet the needs of treatment. For this reason, the embodiment of the utility model proposes a passive solution based on a lens and a filter 3 to collect red light in sunlight, thereby alleviating visual fatigue, thereby having a certain effect on the auxiliary improvement of ophthalmic optometry.

[0030] The present invention provides a red light filter glasses, which are used to relieve visual fatigue and assist in improving eye vision. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a frame 6 and a fixing part, and the frame 6 is fixed to the eye by the fixing part. A converging lens is provided on the frame 6, and a collimating lens is provided on the inner side of the converging lens; the converging lens or the collimating lens is made of red light filtering material, or a filter 3 is provided on the outer side of the converging lens or between the converging lens and the collimating lens or on the inner side of the collimating lens; the converging lens is used to converge the received light beam onto the collimating lens, and the collimating lens is used to collimate the light beam converged by the converging lens, the area of the converging lens is larger than that of the collimating lens, and the filter 3 is used to obtain and transmit the red light in the light beam.

[0031] It should be understood that in the embodiment of the present utility model, the fixing member is the temple 7 of conventional glasses, and the temple 7 is placed in front of the human eye to fix the frame 6. The frame 6 is placed in front of the human eye through the temple 7.

[0032] In other embodiments, the fixing member may also be a cable tie, a Velcro, etc., by which the frame 6 is fixed. The following mainly describes that the fixing member may be the temple 7.

[0033] The incident light beam 1 in the embodiment of the utility model can be natural light such as sunlight, bioluminescence, or a light beam generated by an artificial light source such as an incandescent lamp.

[0034] In the embodiment of the utility model, the light of other wavelength bands can be filtered out and the red light can be transmitted by setting the filter 3, and the filter 3 can be set at any position of the overall light path, such as the inner side or outer side of the converging lens, the inner side or outer side of the collimating lens, etc. Specifically, the inner side refers to the side close to the eye, and the outer side refers to the side away from the eye.

[0035] It is also possible to prepare converging lenses or collimating lenses by using red light filtering materials with red light filtering function, thereby reducing the number of components of the red light filtering glasses themselves, reducing the volume, and making it easier to wear.

[0036] Converging lenses are lenses with focusing function, which are mainly used to collect natural light and play a certain focusing role.

[0037] The filter 3 is mainly used to extract the red wavelength portion of the collected light, transmit the light in the red band, and filter out the light in the non-red band.

[0038] The collimating lens is a lens with diverging function, located between the converging lens and its focal point, and is mainly used to parallelize the collected red light.

[0039] In the embodiment of the utility model, sunlight can be regarded as a parallel light beam. When the incident light beam 1 is sunlight, the converging lens collects the sunlight and plays a certain focusing role. Then, the red light component in the sunlight is obtained through the filter 3, and the light of other bands is filtered out. Finally, the light beam is collimated by the collimating lens to obtain parallel light to avoid the focusing of the light spot.

[0040] The utility model discloses a red light filtering glasses, which are provided with a converging lens on a frame 6, a collimating lens on the inner side of the converging lens, and the converging lens or the collimating lens is made of red light filtering material, or a filter 3 is provided on the outer side of the converging lens or between the converging lens and the collimating lens or on the inner side of the collimating lens, and the red light is transmitted through the filter 3 and the light of other bands is filtered out, so as to achieve the effect of collecting red light. Since the area of the converging lens is larger than that of the collimating lens, when the light beam is incident, the converging lens can converge more red light onto the collimating lens, and collimate it into parallel light through the collimating lens. In this way, under the same incident conditions, the power of the collected red light can be greatly improved, and the effects on auxiliary treatment of eye vision or relief of visual fatigue can be greatly improved. Therefore, the red light filtering glasses of the utility model do not need to be provided with a light source such as a laser or an LED, and the stability and safety are improved, and the volume of the glasses is reduced.

[0041] In an optional embodiment, the red light filter glasses further include a fixing frame 8, the fixing parts are temples 7, one end of the fixing frame 8 is connected to the frame 6 or the temples 7, and the other end of the fixing frame 8 is connected to the collimating lens.

[0042] Specifically, since the area of the collimating lens is smaller than that of the converging lens, the fixing frame 8 needs to be tilted. By setting the fixing frame 8, the collimating lens can be fixed between the frame 6 and the temples 7, thereby improving the stability of the red light filter glasses.

[0043] In an optional embodiment, the filter 3 is attached to the inner side or outer side of the converging lens, or the filter 3 is attached to the inner side or outer side of the collimating lens.

[0044] Specifically, the filter can be implemented by being closely attached to the lens, or can be placed at any position in the optical path, not close to the lens. In one embodiment, the filter 3 is attached to the converging lens or the collimating lens to make its structure more compact.

[0045] Further, the filter 3 is fixed on the inner side or outer side of the converging lens by optical glue, or the filter 3 is fixed on the inner side or outer side of the collimating lens by optical glue.

[0046] The optical adhesive is colorless and transparent, has a light transmittance of more than 90%, has good bonding strength, can be cured at room temperature or medium temperature, and has small curing shrinkage, etc. Fixing the filter 3 and the converging lens or the collimating lens by optical adhesive can enhance the structural stability and have little effect on the light transmittance.

[0047] In an optional embodiment of the present invention, Figure 3 As shown, the converging lens adopts a Fresnel lens 2 .

[0048] Fresnel lens 2 technology plays a great role in many fields such as lighting, biomedicine, observation, etc., but its application in sunglasses or light-feeding devices is still slightly insufficient. Therefore, the utility model combines Fresnel lens 2 with red light eye therapy. By focusing the Fresnel lens 2 at the front end, the red light in the sunlight is collected to achieve the effect of relieving visual fatigue.

[0049] In an alternative embodiment, if Figure 4 As shown, the converging lens adopts a convex lens 5.

[0050] Specifically, the lens used for front-end focusing may be a Fresnel lens 2 or other convex lenses 5 with focusing function, such as a double convex lens, a plano-convex lens, etc.

[0051] In an optional embodiment, the collimating lens is a concave lens 4 .

[0052] Specifically, the concave lens 4 used may be a lens with divergence function, such as a biconcave lens, a plano-concave lens, etc.

[0053] In the embodiment of the utility model, the material for preparing the Fresnel lens 2, the convex lens 5 and the concave lens 4 can be glass or resin.

[0054] In an optional embodiment, the focal length of the converging lens is between 0 cm and 100 cm, the focal length of the collimating lens is between -100 cm and 0 cm, and the distance between the converging lens and the collimating lens is between 0 cm and 20 cm.

[0055] Exemplarily, the focal length of the converging lens is 50 cm, the focal length of the collimating lens is -50 cm, and the distance between the converging lens and the collimating lens is 10 cm.

[0056] Alternatively, the focal length of the converging lens is 0 cm, the focal length of the collimating lens is 0 cm, and the distance between the converging lens and the collimating lens is 0 cm.

[0057] Alternatively, the focal length of the converging lens is 100 cm, the focal length of the collimating lens is -100 cm, and the distance between the converging lens and the collimating lens is 20 cm.

[0058] By properly arranging the distance between the converging lens and the collimating lens and the focal lengths of the two, the light beam incident on the converging lens converges to the collimating lens and then diverges to form parallel light, thus avoiding the focusing of the light spot.

[0059] In an optional embodiment, the diameter of the converging lens is 3 cm to 6 cm, and the diameter of the collimating lens is 5 mm to 3 cm.

[0060] Exemplarily, the converging lens has a diameter of 5 cm and the collimating lens has a diameter of 0.75 cm.

[0061] Alternatively, the converging lens has a diameter of 4 cm and the collimating lens has a diameter of 5 mm.

[0062] Alternatively, the converging lens has a diameter of 6 cm and the collimating lens has a diameter of 2 cm.

[0063] Since the diameter of the converging lens is larger than that of the collimating lens, the converging lens plus the collimating lens can first collect the light within the size range of the converging lens (about 5cm) to the plane of the collimating lens (select 5mm-3cm) and parallelize it. In this way, under the same incident conditions, the collected red light power will be greatly improved, which will greatly improve the effects of auxiliary treatment of eye vision or relief of visual fatigue.

[0064] In an optional embodiment, the central wavelength of the red light transmitted by the red light filter material or filter 3 is within the range of 620nm-750nm. Preferably, the central wavelength of the red light transmitted by the red light filter material or filter 3 is 650nm. That is, the converging lens or the collimating lens is made of a red light filter material with a central wavelength of 650nm, or a filter 3 with a central wavelength of 650nm is provided on the outer side of the converging lens or between the converging lens and the collimating lens or on the inner side of the collimating lens.

[0065] Specifically, in the related art, a filter device is used to obtain red light with a central wavelength in the range of 620nm to 750nm, so as to obtain red light and achieve auxiliary treatment effects and fatigue improvement functions. However, the applicant has found that red light with a central wavelength of 650nm is stronger than red light of other wavelengths in relieving visual fatigue and auxiliary treatment of eye vision. Therefore, the embodiment of the utility model preferably transmits a filter 3 with a central wavelength of 650nm and cooperates with a converging lens to increase the red light power, which can improve the fatigue relief and auxiliary treatment effects.

[0066] The overall optical path and principle of the embodiment of the present invention are as follows.

[0067] (1) When sunlight or other light sources are incident as parallel light, they first pass through the converging lens, which focuses the parallel light.

[0068] (2) During the focusing optical path, the light will pass through the filter 3, which is used to obtain light with a wavelength of about 650 nm.

[0069] (3) After the red light is collected, it passes through a collimator lens between the converging lens and its focal point. The collimator lens diverges the focused light beam into parallel light. The collimator lens is positioned between the converging lens and its focal point, which can effectively reduce the length of the optical path.

[0070] (4) After the parallel light is generated and received, it can play the role of red light to assist in improving eye fatigue.

[0071] The embodiments of the present utility model have the following effects:

[0072] The embodiment of the utility model utilizes a combination of a converging lens and a filter 3 to collect light of a red wavelength, and can be used in a natural environment, effectively solving the safety problem caused by the insufficient stability of light sources of various laser or LED devices.

[0073] The embodiment of the utility model uses a converging lens to convert the collected light into parallel light, thereby avoiding the focusing of the light spot.

[0074] The embodiment of the utility model collects red light in natural light by using a combination of a converging lens, a collimating lens and a filter 3. The overall optical path is relatively simple and effective, and the power of the collected red light can be increased, thereby improving the effects of relieving fatigue and assisting treatment.

[0075] Although the embodiments of the present invention are described above in conjunction with the drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall all fall within the scope defined by the appended claims.

Claims

1. A pair of red light filter glasses, used to relieve visual fatigue and assist in improving vision, comprising a frame and a fixing member, wherein the frame is fixed to the eye by the fixing member, and characterized in that: The frame is provided with a converging lens, and the inner side of the converging lens is provided with a collimating lens; The converging lens or the collimating lens is made of red light filtering material, or a filter is provided on the outer side of the converging lens, between the converging lens and the collimating lens, or on the inner side of the collimating lens; The converging lens is used to converge the received light beam onto the collimating lens, and the collimating lens is used to collimate the light beam converged by the converging lens. The area of the converging lens is larger than that of the collimating lens. The filter is used to acquire and transmit red light in the light beam.

2. The red light filter glasses according to claim 1, characterized in that: It also includes a fixing frame, wherein the fixing member is a temple, one end of the fixing frame is connected to the mirror frame or the temple, and the other end of the fixing frame is connected to the collimating lens.

3. The red light filter glasses according to claim 1, characterized in that: The filter is attached to the inner side or the outer side of the converging lens, or the filter is attached to the inner side or the outer side of the collimating lens.

4. The red light filter glasses according to claim 3, characterized in that: The filter is fixed on the inner side or outer side of the converging lens by optical glue, or the filter is fixed on the inner side or outer side of the collimating lens by optical glue.

5. The red light filter glasses according to claim 1, characterized in that: The converging lens is a Fresnel lens.

6. The red light filter glasses according to claim 1, characterized in that: The converging lens is a convex lens.

7. The red light filter glasses according to claim 1, characterized in that: The collimating lens is a concave lens.

8. The red light filter glasses according to claim 1, characterized in that: The converging lens has a diameter of 3 cm to 6 cm, and the collimating lens has a diameter of 5 mm to 3 cm.

9. The red light filter glasses according to claim 1, characterized in that: The central wavelength of the red light transmitted by the red light filter material or the filter is in the range of 620nm-750nm.

10. The red light filter glasses according to claim 1, characterized in that: The focal length of the converging lens is between 0 cm and 100 cm, the focal length of the collimating lens is between -100 cm and 0 cm, and the distance between the converging lens and the collimating lens is between 0 cm and 20 cm.