CN111025683A - Spectacle lens and multifunctional eye protection spectacles - Google Patents

Abstract

The application discloses an eyeglass lens. The spectacle lens comprises: the lens substrate of the lens layer is an aspheric lens and has the function of correcting the eyesight; a green film layer disposed at an outer side of the lens layer, wherein at least a blue-proof layer for filtering harmful light is disposed; and one of the two antifogging layers is arranged on the inner side of the lens layer, and the other two antifogging layers are arranged on the outer side of the green film layer. The technical problem of solved because unable harmful blue light of separation only, and can not prevent that the personnel that the atomizing caused from wearing glasses and having brought inconvenience has been solved in this application.

Description

Spectacle lens and multifunctional eye protection spectacles

Technical Field

The application relates to the field of glasses, particularly, relate to a spectacle lens and multi-functional eyeshield glasses.

Background

Spectacles are simple optical devices made for correcting eyesight or protecting eyes, and consist of lenses and a spectacle frame. The glasses for correcting the vision comprise four types of glasses for myopia, hyperopia, presbyopia and astigmatic.

Most spectacle lenses all have certain visual fatigue that prevents, the function of protecting against radiation, but current lens is on preventing the blue light, with the whole separation of blue light, including profitable blue light, can not prevent moreover that the lens from producing the atomizing when cold and hot environment is in turn, has brought a great deal of inconvenience for the person wears glasses.

Aiming at the problems that only harmful blue light cannot be blocked and atomization cannot be prevented in the related art, an effective solution is not provided at present.

Disclosure of Invention

The main aim at of this application provides a spectacle lens and multi-functional eyeshield glasses to solve unable harmful blue light of separation only, and can not prevent the atomizing problem.

In order to achieve the above objects, according to one aspect of the present application, an eyeglass lens and a multifunctional eye-protecting eyeglass are provided.

An ophthalmic lens according to the present application comprises: the lens substrate of the lens layer is an aspheric lens and has the function of correcting the eyesight; a green film layer disposed at an outer side of the lens layer, wherein at least a blue-proof layer for filtering harmful light is disposed; and one of the two antifogging layers is arranged on the inner side of the lens layer, and the other two antifogging layers are arranged on the outer side of the green film layer.

Further, the green film layer further includes: the first waterproof film layer, the rare metal antireflection film layer, the second waterproof film layer, the wear-resistant hardening layer, the silicide composite antireflection film layer, the first base layer and the second base layer are sequentially arranged on the inner side of the blue light prevention layer from outside to inside.

Furthermore, the thickness of the blue light prevention film layer is 25-35 nanometers, the thickness of the first waterproof film layer is 20-30 nanometers, the thickness of the rare metal antireflection film layer is 10-18 nanometers, the thickness of the second waterproof film layer is 10-15 nanometers, the thickness of the wear-resistant hardening layer is 15-20mm, and the thickness of the silicide composite antireflection film layer is 50-60 nanometers.

Further, the first substrate layer and the second substrate layer are acrylic material substrate layers; the first and second waterproof membrane layers are fluoride layers.

Furthermore, the green film layer is a jadeite film.

Further, the thickness of the lens layer is 1.0-1.3 mm.

Further, the center of the cambered surface of the lens layer is an aspheric surface which is curved 100 to the end part 220 and is curved smoothly.

Further, the center of the cambered surface of the lower surface of the lens layer is an aspheric surface which is bent from 620 to 600 and is smoothly bent.

In order to achieve the above objects, according to another aspect of the present application, there is provided multi-functional eye-protecting glasses.

The multifunctional eye-protecting glasses according to the application comprises: the spectacle lens is provided.

Further, still include nose support, picture frame and claw, its characterized in that: the picture frame is of a half-frame structure, the picture frame is symmetrically arranged at the left end and the right end of the nose support, the hook claws are symmetrically hinged at one end of the picture frame, which is far away from the nose support, the left end and the right end inside the picture frame are respectively provided with a lens buckle, the lenses are clamped and installed in the picture frame through the lens buckle, the upper end inside the picture frame is horizontally provided with an adjusting cavity with an oval cross section, one end of the adjusting cavity, which is far away from the nose support, penetrates through the picture frame and is provided with a triangular boss buckle, the inside of one end of the adjusting cavity, which is far away from the nose support, is provided with a fixedly-adjusted screw shaft sleeve, the screw shaft sleeve is buckled and installed with the triangular boss buckle, an adjusting screw is arranged in the fixedly-adjusted screw shaft sleeve, an adjusting piston is arranged on the adjusting screw, the adjusting, adjust the chamber and be close to the nose and hold in the palm one end and vertically run through and be provided with the bell mouth, the lens corresponds bell mouth position and is provided with the toper boss, the inside intercommunicating pore that vertically is provided with of toper boss, the lens rear end is provided with the adjusting lens, be provided with lens liquid chamber between adjusting lens and the lens, lens liquid chamber passes through the intercommunicating pore and is connected with the regulation chamber and carries out lens liquid intracavity pressure control through controlling the removal of piston.

In the embodiment of the application, the mode that the green film layer is matched with the antifogging layer is adopted, and the lens substrate of the lens layer is an aspheric lens and has the function of correcting the eyesight; a green film layer disposed at an outer side of the lens layer, wherein at least a blue-proof layer for filtering harmful light is disposed; the first antifogging layer is arranged on the inner side of the lens layer, and the second antifogging layer is arranged on the outer side of the green film layer; the purpose of only obstructing harmful blue light and preventing atomization is achieved, so that the technical effect of avoiding inconvenience caused by wearing glasses is achieved, and the technical problem that inconvenience is caused by incapability of obstructing harmful blue light and incapability of preventing atomization when a person wears glasses is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic structural view of an ophthalmic lens according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a structure of a green film layer according to an embodiment of the present disclosure;

fig. 3 is a front cross-sectional view of multi-functional eye-protecting eyewear according to an embodiment of the present application;

fig. 4 is a side cross-sectional view of multi-functional eye-protecting eyewear according to an embodiment of the present application.

Reference numerals

1. A lens layer; 2. a green film layer; 3. an antifogging layer; 4. a blue light prevention layer; 5. a first waterproof membrane layer; 6. a rare metal anti-reflection film layer; 7. a second waterproof membrane layer; 8. a wear-resistant hardened layer; 9. a silicide composite anti-reflection film layer; 10. a first substrate layer; 11. a second substrate layer; 12. a mirror frame; 13. adjusting the lens; 14. A lens fluid chamber; 15. an adjusting piston; 16. adjusting the screw rod; 17. adjusting the rotary handle; 18. fixing and adjusting the screw shaft sleeve; 19. lens buckling; 20. a tapered hole; 21. and a conical boss.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-2, the present application relates to an ophthalmic lens comprising: the lens layer 1 is provided with an aspheric lens as a lens substrate and has the function of correcting the eyesight; a green film layer 2 disposed outside the lens layer 1, in which at least a blue light-proof layer 4 for filtering harmful light is disposed; and two antifogging layers 3, one of which is arranged on the inner side of the lens layer 1 and the other of which is arranged on the outer side of the green film layer 2.

Wherein, preferred, antifog coating 3 can prevent that the lens from hazing, and especially personnel enter into when hotter environment under cold environment, the lens generally very easily hazes, consequently, sets up the inside and outside at the lens through antifog coating 3, no matter the lens is inboard, still the lens outside can not be hazed yet to when personnel wear the glasses of this lens preparation, also can not bring a great deal of inconvenience.

Optionally, the lens is a transparent sheet, wherein the surface of the transparent sheet comprises a first surface and a second surface, wherein the first surface has a reinforced film, the reinforced film of the first surface is made by spraying, the second surface has an anti-fog film, and the anti-fog film of the second surface is made by dipping.

The transparent sheet body is further provided with an edge surface between the first surface and the second surface, and the edge surface is covered by the anti-fog film.

Besides the strengthening film on the first surface, the rest surfaces of the light-transmitting sheet body are covered with the antifogging film.

The first surface of the transparent sheet body is firstly sprayed with a strengthening solution to prepare a strengthening film, then the transparent sheet body is soaked in an antifogging solution, all the surfaces of the transparent sheet body are prepared into antifogging films, and finally the antifogging films on the strengthening film on the first surface of the transparent sheet body are removed, so that the first surface only has the strengthening film.

The strengthening solution can be made mainly of amino potassium acid ester series solution, and the anti-fog solution is made mainly of silica gel solution, so that the incompatible property of the liquid medicine can be utilized to make the first surface of the light-transmitting sheet body have the strengthening film, and the rest surfaces of the light-transmitting sheet body are covered with the anti-fog film.

The surface of the transparent sheet body comprises a first surface and a second surface, wherein the first surface is provided with a reinforced film, and the first surface and the second surface are provided with the reinforced film, the first surface is firstly sprayed with a reinforced solution and cured or dried to prepare the reinforced film, the first surface and the reinforced film thereof are simultaneously immersed in an antifogging solution with the second surface, and an antifogging film is prepared on the reinforced film of the first surface and the second surface by curing or drying, and finally the antifogging film on the reinforced film of the first surface is removed, so that the first surface is only provided with the reinforced film, and the second surface is only provided with the antifogging film.

Wherein the green film layer 2 further comprises: the first waterproof film layer 5, the rare metal antireflection film layer 6, the second waterproof film layer 7, the wear-resistant hardening layer 8, the silicide composite antireflection film layer 9, the first base layer 10 and the second base layer 11 are sequentially arranged on the inner side of the blue light prevention layer 4 from outside to inside.

The thickness of the blue light prevention film layer is 25-35 nanometers, the thickness of the first waterproof film layer 5 is 20-30 nanometers, the thickness of the rare metal antireflection film layer 6 is 10-18 nanometers, the thickness of the second waterproof film layer 7 is 10-15 nanometers, the thickness of the wear-resistant hardening layer 8 is 15-20mm, and the thickness of the silicide composite antireflection film layer 9 is 50-60 nanometers.

Wherein, the green film layer 2 is a jadeite film. The green film layer 2 is arranged on the lens, namely, a layer of substance is plated on the surface of the lens layer 1, so that the capability of the lens for reflecting light rays is improved, the visual identification capability is improved, and the lens has better control capability or the capability of reducing transmission.

Wherein the first sheet base layer 10 is an acrylic material substrate layer. The first piece of base layer 10 and the second piece of base layer 11 have the same structure.

Wherein the green film layer 2 is disposed on the inner and outer surfaces of the lens layer 1. And the green film layer 2 may be provided on the inner surface or the outer surface of the lens layer 1.

The first waterproof membrane layer 5 is a fluoride layer, and the thickness of the first waterproof membrane layer 5 is nanometer. The anti-soil stain, the clean function of lens are improved to the main consideration of setting up of first waterproof rete 5. The first waterproof membrane layer 5 is also called a hydrophobic membrane layer, and is generally formed by evaporating and depositing hydrophobic materials such as fluoride and the like on a mirror by using evaporation. The hydrophobic substance and the compact film surface reduce the contact area between water/oil and the lens, so that the water/oil is not easy to adhere to the surface of the lens, the visual effect of the lens is ensured, and the lens is easier to clean. The second waterproof membrane layer 7 has the same structure as the first waterproof membrane layer 5.

Wherein, the thickness of the lens layer 1 is 1.0-1.3 mm. The center of the cambered surface of the lens layer 1 is an aspheric surface which is bent from 100 to 220 and is bent smoothly. The center of the cambered surface of the lower surface of the lens layer 1 is an aspheric surface bent from 620 to 600 and smoothly bent.

The blue-light-proof film layer in the lens in the embodiment can emit high-energy harmful blue light for digital screens based on LED technology, such as computers, mobile phones, flat panels and the like which are used for a long time, has short wavelength and high energy, and can directly penetrate through crystalline lenses to reach the macular area of eyes, so that macular degeneration is caused. The blue light prevention film can effectively reflect harmful blue light with the wavelength of 415nm-455nm through the interference reflection principle of light, protect eyes from being damaged by the harmful blue light, and ensure the beneficial blue light to smoothly pass through.

The rare metal anti-reflection film layer 6 is mainly used for improving the scratch resistance of the lens; the main effect of wear-resisting hard layer 8 is to plate a layer of dura mater on the lens, can effectively improve the live time of lens, can increase the certain rigid of lens simultaneously and provide clearer visual effect for the consumer.

The silicide composite antireflection film layer 9, also called an antireflection film and an antireflection film, is formed by evaporating metal oxides such as silicon oxide, zirconium oxide and the like on the surface of a lens under a vacuum condition, and light reflected back through two sides of the film layer is interfered by utilizing the principle of light interference so as to be mutually counteracted, and the light reflection of the lens is reduced or eliminated, so that the light transmittance of the lens is improved. In general, it is difficult to achieve an ideal antireflection effect by using the single silicide composite antireflection film layer 9, because one antireflection film layer only has an antireflection effect on light of a certain wavelength band, it is preferable to use two, three, or even more antireflection films to improve the antireflection effect of the visible light in the whole wavelength band, so that the lens is more transparent.

In this embodiment, by providing the green film layer 2, the blue light prevention film layer, the first waterproof film layer 5, the rare metal antireflection film layer 6, the second waterproof film layer 7, the wear-resistant hard layer 8, the silicide composite antireflection film layer 9, the first base layer 10, and the second base layer 11 are sequentially formed on the green film layer 2 from outside to inside, the prepared lens has multiple functions of radiation protection, antiglare, ultraviolet protection, fatigue prevention, object distortion reduction, high light projection rate, and the like, and the lens layer 1 adopts an aspheric lens, so that the lens is light, thin, comfortable, attractive and capable of recalling real vision.

Other structures and operation principles related to the present embodiment are well known to those skilled in the art and will not be described in detail.

From the above description, it can be seen that the following technical effects are achieved by the present application:

in the embodiment of the application, the lens substrate of the lens layer 1 is an aspheric lens by adopting a mode of matching the green film layer 2 and the antifogging layer 3, so that the lens layer has the function of correcting the eyesight; a green film layer 2 disposed outside the lens layer 1, in which at least a blue light-proof layer 4 for filtering harmful light is disposed; two antifogging layers 3, one of which is arranged on the inner side of the lens layer 1 and the other of which is arranged on the outer side of the green film layer 2; the purpose of only obstructing harmful blue light and preventing atomization is achieved, so that the technical effect of avoiding inconvenience caused by wearing glasses is achieved, and the technical problem that inconvenience is caused by incapability of obstructing harmful blue light and incapability of preventing atomization when a person wears glasses is solved.

As shown in fig. 3-4, there is also provided a multi-functional eye-protecting glasses, comprising: the spectacle lens is provided. Preferably, still include nose pad, picture frame 12 and hook, its characterized in that: the picture frame 12 is of a half-frame structure, the picture frame 12 is symmetrically arranged at the left end and the right end of the nose support, the hook claws are symmetrically hinged at one end of the picture frame 12 far away from the nose support, the left end and the right end inside the picture frame 12 are respectively provided with a lens buckle 19, the lenses are clamped and installed in the picture frame 12 through the lens buckle 19, the inside of the upper end of the picture frame 12 is horizontally provided with an adjusting cavity with an oval cross section, one end of the adjusting cavity far away from the nose support penetrates through the picture frame 12 and is provided with a triangular boss buckle, the inside of one end of the adjusting cavity far away from the nose support is provided with a fixedly-adjusted screw shaft sleeve, the screw shaft sleeve is buckled and installed with the triangular boss buckle, an adjusting screw is arranged in the fixedly-adjusted screw shaft sleeve 18, an adjusting piston 15 is arranged on the adjusting screw, the adjusting piston, rubber seal suit is on screw nut, it is provided with bell mouth 20 to adjust the chamber and vertically run through near nose support one end, the lens corresponds bell mouth 20 position and is provided with toper boss 21, the inside intercommunicating pore that vertically is provided with of toper boss 21, the lens rear end is provided with adjusts lens 13, it is provided with lens liquid chamber 14 to adjust between lens 13 and the lens, lens liquid chamber 14 passes through the intercommunicating pore and is connected with the regulation chamber and controls through adjusting piston 15 and remove and carry out the regulation of lens liquid chamber 14 internal pressure.

Specifically, the mirror frame 12 is a TR mirror frame 12, and a mirror layer 1 and a green film layer 2 are mounted in the TR mirror frame 12 to form an integrated structure. The TR mirror frame 12 is selected, so that the mirror frame 12 has good flexibility and elasticity, is not easy to deform and break after being worn for a long time. And the glasses legs structurally adopted by the glasses are made of pure titanium, so that the glasses are better in flexibility and convenient to wear in the using process.

The adjusting piston 15 respectively seals a gap between the adjusting cavity and the screw nut and a gap between the screw nut and the adjusting screw, and the pressure of the adjusting cavity is kept stable during adjustment;

the lens is specifically one of a resin lens and a glass lens with a cambered surface, the adjusting lens 13 is specifically a plane mirror made of a plastic transparent material, the sum of the thicknesses of the lens, the lens liquid cavity 14 and the adjusting lens 13 is 2.5mm, the thickness of the adjusting lens 13 is 0.3 mm-0.5 mm, and the adjusting lens 13 deforms along with the change of the internal pressure of the lens liquid cavity 14;

an adjusting rotary handle 17 is arranged at one end of the adjusting screw rod, which is far away from the nose pad, the adjusting rotary handle 17 is a quick locking rotary handle for a shaft, and the quick locking rotary handle for the shaft can quickly lock the adjusting screw rod, so that the rotation of the adjusting screw rod caused by vibration is effectively prevented;

the upper end face of the spectacle frame 12 is provided with a transparent layer corresponding to the position of the adjusting screw, the transparent layer is provided with adjusting scales, and the adjusting scales are adjusted in real time through the left and right movement of the adjusting piston 15, so that the degree of the spectacles can be adjusted more intuitively and accurately;

the adjustable range of the adjusting scales is specifically-700 degrees to +500 degrees, and the value of the degree of the adjusting scales which spans the common range of the myopia glasses and the hyperopia glasses is changed, so that the glasses are more suitable for different people;

the working principle of the invention is as follows: when the lens liquid chamber adjusting device is used, the adjusting rotary handle 17 is unlocked, the transparent layer is observed, the adjusting screw rod is rotated through the manual adjusting rotary handle 17 so as to drive the adjusting piston 15 to the position where the adjusting piston 15 is arranged at an adjusting scale of 0 degree, the lens liquid chamber 14 is filled with transparent liquid, the lens is inserted into the lens frame 12, the tapered hole 20 is matched with the tapered boss 21 at the upper end of the lens, the lens is locked and installed through the lens buckle 19 at the left end and the right end of the lens frame 12, when the lens liquid chamber adjusting device is used, the adjusting rotary handle 17 is rotated clockwise through manual adjustment to drive the adjusting screw rod 15 to move away from the nose support end, the lens liquid chamber 14 is connected with the adjusting chamber through the communication hole and adjusts the pressure inside the lens liquid chamber 14 through the movement of the adjusting piston 15, negative pressure is generated inside the lens liquid chamber 14 at the moment, and the adjusting, see through the different degrees of the lens of the number scale mark on the stratum lucidum can accurate adjustment left eye and right eye to lock adjusting screw through adjusting the swing handle 17 and prevent the change at vibrations in-process number of degrees, on the contrary, adjust swing handle 17 rotation adjusting screw drive adjusting piston 15 through manual regulation anticlockwise rotation and be close to the nose and hold in the palm the end and remove, lens liquid chamber 14 is connected with the adjusting chamber through the intercommunicating pore and carries out lens liquid chamber 14 internal pressure through adjusting piston 15's removal and adjust this moment, lens liquid chamber 14 inside produces the malleation this moment, adjust lens 13 and form convex lens (tele-vision mirror, presbyopic glasses) by the outside formation of propping up.

Other structures and operating principles thereof involved in the present embodiment are well known to those skilled in the art and will not be described in detail.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An ophthalmic lens, comprising: the lens substrate of the lens layer is an aspheric lens and has the function of correcting the eyesight; a green film layer disposed at an outer side of the lens layer, wherein at least a blue-proof layer for filtering harmful light is disposed; and one of the two antifogging layers is arranged on the inner side of the lens layer, and the other two antifogging layers are arranged on the outer side of the green film layer.

2. The ophthalmic lens of claim 1, wherein the green film layer further comprises: the first waterproof film layer, the rare metal antireflection film layer, the second waterproof film layer, the wear-resistant hardening layer, the silicide composite antireflection film layer, the first base layer and the second base layer are sequentially arranged on the inner side of the blue light prevention layer from outside to inside.

3. The ophthalmic lens of claim 2, wherein the blue-light blocking film layer has a thickness of 25 to 35 nm, the first water-resistant film layer has a thickness of 20 to 30 nm, the rare metal antireflective film layer has a thickness of 10 to 18 nm, the second water-resistant film layer has a thickness of 10 to 15nm, the wear-resistant stiffening layer has a thickness of 15 to 20mm, and the silicide composite antireflective film layer has a thickness of 50 to 60 nm.

4. The ophthalmic lens of claim 2, wherein the first and second sheet substrates are acrylic substrate layers; the first and second waterproof membrane layers are fluoride layers.

5. The ophthalmic lens of claim 1, wherein the green film layer is a jadeite film.

6. The ophthalmic lens according to claim 1, characterized in that the thickness of the lens layer is 1.0-1.3 mm.

7. The ophthalmic lens of claim 1, wherein the lens layer has an upper surface curve centered at 100 to a tip 220 curve that is smoothly curved aspheric.

8. The ophthalmic lens of claim 1, wherein the lens layer has a lower surface curve centered 620 to a smoothly curving aspheric surface at end 600.

9. A multi-functional eyeshield glasses which characterized in that includes: the ophthalmic lens of claims 1 to 8.

10. The multi-functional eyeshield glasses of claim 9, further include nose pads, a frame and fingers, characterized in that: the picture frame is of a half-frame structure, the picture frame is symmetrically arranged at the left end and the right end of the nose support, the hook claws are symmetrically hinged at one end of the picture frame, which is far away from the nose support, the left end and the right end inside the picture frame are respectively provided with a lens buckle, the lenses are clamped and installed in the picture frame through the lens buckle, the upper end inside the picture frame is horizontally provided with an adjusting cavity with an oval cross section, one end of the adjusting cavity, which is far away from the nose support, penetrates through the picture frame and is provided with a triangular boss buckle, the inside of one end of the adjusting cavity, which is far away from the nose support, is provided with a fixedly-adjusted screw shaft sleeve, the screw shaft sleeve is buckled and installed with the triangular boss buckle, an adjusting screw is arranged in the fixedly-adjusted screw shaft sleeve, an adjusting piston is arranged on the adjusting screw, the adjusting, adjust the chamber and be close to the nose and hold in the palm one end and vertically run through and be provided with the bell mouth, the lens corresponds bell mouth position and is provided with the toper boss, the inside intercommunicating pore that vertically is provided with of toper boss, the lens rear end is provided with the adjusting lens, be provided with lens liquid chamber between adjusting lens and the lens, lens liquid chamber passes through the intercommunicating pore and is connected with the regulation chamber and carries out lens liquid intracavity pressure control through controlling the removal of piston.

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