CN217293312U

CN217293312U - Take nanometer grating microstructure's prevent blue light lens mold processing and prevent blue light lens

Info

Publication number: CN217293312U
Application number: CN202221185361.4U
Authority: CN
Inventors: 叶志成; 卓燕芬; 庄小玲; 叶剑双; 曹桂英
Original assignee: Xiamen Weina Photoelectric Technology Co ltd
Current assignee: Xiamen Weina Photoelectric Technology Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-26
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses a blue light prevention lens processing mold with a nano grating microstructure, which comprises an upper pressing mold and a lower pressing mold; the upper pressing die protrudes downwards to form an arc convex surface corresponding to the curvature of the lens, and a pressing strip is further arranged on the upper pressing die; the lower pressing die is concave downwards to form an arc-shaped concave surface corresponding to the curvature of the lens, the arc-shaped convex surface is opposite to the arc-shaped concave surface, the upper pressing die and the lower pressing die are buckled together to form a processing cavity of the lens, and the processing cavity is connected with the injection molding material flow channel; the metal mother board is tightly attached to and covers the arc-shaped convex surface, the edge of the metal mother board is fixedly pressed on the upper pressing die by virtue of the pressing strip, and one surface, facing the processing cavity, of the metal mother board is provided with a blue-light-proof nano grating microstructure. The utility model also discloses a corresponding blue light lens of preventing. The utility model discloses can conveniently process the production and take the arc lens of nanometer grating structure, make the lens have the effect of preventing the blue light, the lens does not have the colour difference moreover, and production efficiency is high, and the yield is also high.

Description

Take nanometer grating microstructure's prevent blue light lens mold processing and prevent blue light lens

Technical Field

The utility model relates to a technical field of lens, in particular to take nanometer grating microstructure prevent blue light lens and this mold processing of preventing blue light lens.

Background

Scientific research shows that the blue light of 400-450 nm has very high energy, can easily penetrate through the crystalline lens of the eye to reach the retina, and accelerates the oxidation process of the macular area of the eye, thereby causing great damage to the eye. The blue light with the wavelength of 465nm-500nm is beneficial blue light, is an indispensable component of visible light, can help pupil contraction and help eyes to normally display the color of an object, and the lack of the blue light of the component can cause the color cast of the object when the eyes see the color. Currently, in order to reduce the damage of blue light to eyes, wearing special blue light prevention glasses is one of the common protection means.

The main manufacturing technology of the anti-blue-light glasses on the market at present has two types: firstly, a substance for absorbing blue light is added into a resin material before the glasses are molded, and the absorbent can be equally divided into various types according to organic matters, inorganic-organic composite nano particles and the like. The other is a multilayer coating, and the blue light in harmful wave bands is filtered by a multilayer coating mode with high refractive index and low refractive index alternately.

No matter the blue light prevention technology adopting an absorbent or a film coating mode is adopted, the problem which cannot be solved exists at present, and the blue light which is harmful to human eyes and has high-energy short-wave blue light of 400nm-450nm can not be accurately filtered, and simultaneously, the blue light which is beneficial to human bodies and has the wavelength of 465nm-500nm can be transmitted. In addition, the existing blue-light-proof glasses generally have chromatic aberration, the glasses lenses manufactured by adopting the process of adding the chemical absorbent are generally yellow, and the glasses lenses manufactured by adopting the process of multilayer coating are generally blue. Wearing such glasses with chromatic aberration for a long time causes the glasses to be fatigued more easily, and meanwhile, the sensitivity to the color is reduced, and the color weakness is easily caused after a long time.

Based on the above problems in the prior art, the inventor of the present invention has developed a special mold by virtue of the professional skill level and the accumulated rich experience of long-term research, design and manufacture, and the familiarity with the processing technology, so as to manufacture and process the blue light-proof lens with a special structure, and the present case is produced from this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take nanometer grating microstructure prevent blue light lens mold processing, can conveniently process the arc lens of producing out the area nanometer grating structure, make the lens have the effect of preventing the blue light, the lens does not have the colour difference moreover, and production efficiency is high, and the yield is also high.

The utility model aims at providing a take blue light lens of preventing of nanometer grating microstructure still to simplify the structure, make things convenient for manufacturing.

In order to achieve the above purpose, the solution of the present invention is:

a blue light prevention lens processing mold with a nano grating microstructure comprises an upper pressing mold and a lower pressing mold; the upper pressing die protrudes downwards to form an arc convex surface corresponding to the curvature of the lens, and a pressing strip is further arranged on the upper pressing die; the lower pressing die is concave downwards to form an arc-shaped concave surface corresponding to the curvature of the lens, the arc-shaped convex surface is opposite to the arc-shaped concave surface, the upper pressing die and the lower pressing die are buckled together to form a processing cavity of the lens, and the processing cavity is connected with the injection molding material flow channel; the metal mother board is tightly attached to and wraps the arc convex surface, the edge of the metal mother board is fixedly pressed on the upper pressing die through the pressing strip, and one surface, facing the processing cavity, of the metal mother board is provided with the blue light prevention nano grating microstructure.

The top of the upper pressing die forms a pressing groove, the pressing strip is arranged in the pressing groove, and the edge of the metal mother board is bent and arranged between the pressing groove and the pressing strip and fixed through bolts.

The arc convex surface and the arc concave surface are elliptical arc surfaces corresponding to the curvature of the lens.

And a T-shaped fixing frame is formed above the upper pressing die and is fixed below the upper die frame through bolts.

The upper die frame is in a lower frame shape with a downward opening, and a transverse plate of the T-shaped fixing frame is embedded in the lower frame of the upper die frame and fixed through bolts.

And the top of the upper pressing die forms a pressing groove on each of two sides of a vertical plate of the T-shaped fixing frame.

The lower pressing die is fixed above the lower die frame through bolts.

The lower die frame is in an upper frame shape with an upward opening, and the bottom of the lower pressing die is embedded in the upper frame of the lower die frame and fixed through bolts.

The lower pressing die forms arc guide angles on two sides of the arc concave surface, and when the upper pressing die and the lower pressing die are buckled together, the arc guide angles of the lower pressing die and the arc convex surface of the upper pressing die are attached together.

The utility model provides a take blue light lens of preventing of nanometer grating microstructure, is the arc lens that forms by aforementioned mold processing moulds plastics, has the blue light nanometer grating microstructure of preventing at the concave surface of arc lens.

The convex surface and the concave surface of the blue-light-proof lens sequentially form an anti-reflection layer, a hard coating and an anti-fog layer.

After the scheme is adopted, the utility model discloses directly fix the metal mother board on the mould, will prevent that blue light nanometer grating micro-structure from forming at the metal mother board, can effectively avoid the nanometer grating micro-structure to be destroyed by the injection molding material of high temperature at the in-process of moulding plastics, avoid preventing that blue light effect descends. When the lens is molded, the metal mother board directly forms the corresponding nano grating microstructure on the arc-shaped lens through the blue light prevention nano grating microstructure on the metal mother board, the operation process is simple, no new process is added, the production efficiency and the yield are effectively improved, the arc-shaped lens with the blue light prevention nano grating structure can be conveniently, quickly and efficiently obtained, in addition, the blue light prevention effect is good, the lens has no chromatic aberration, the lens light transmission effect is good, and the vision is clear.

The utility model discloses can set up the mould according to the required radian of lens, same mould can be according to the performance requirement change of design product take the metal mother board of different nanometer grating microstructures to the required lens product of production design.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly described below. It is understood that the following drawings depict only some embodiments of the invention and are therefore not to be considered limiting of its scope, for the person skilled in the art will be able to derive from them other related drawings without inventive faculty.

Fig. 1 is a perspective sectional view of the mold of the present invention;

FIG. 2 is a front sectional view of the mold of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a side view of FIG. 1;

fig. 6 is a schematic structural diagram of the lens product of the present invention.

Description of the reference symbols

The device comprises an upper pressing die 1, an arc convex surface 11, a pressing strip 12, a pressing groove 13, a T-shaped fixing frame 14 and an upper die frame 15;

the lower die 2, an arc concave surface 21, an arc lead angle 22 and a lower die frame 23;

a metal motherboard 3, a blue light prevention nano grating microstructure 31;

the anti-blue-light lens comprises a blue-light-proof lens 10, an anti-blue-light nano grating microstructure 101, an anti-reflection layer 20, a hardening layer 30 and an anti-fog layer 40.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terms upper, lower, top, bottom, and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of technical features indicated unless explicitly defined otherwise.

As shown in fig. 1 to 5, the utility model discloses a take nanometer grating microstructure prevents blue light lens mold processing, including last moulding-die 1 and lower moulding-die 2. The upper pressing die 1 protrudes downwards to form an arc convex surface 11 corresponding to the curvature of the lens, and a pressing strip 12 is further mounted on the upper pressing die 1 through screws. The lower pressing die 2 is concave downwards to form an arc concave surface 21 corresponding to the curvature of the lens, the arc convex surface 11 is opposite to the arc concave surface 21, the upper pressing die 1 and the lower pressing die 2 are buckled together to form a processing cavity of the lens, and the processing cavity is connected with an injection molding material flow passage (a common structure is not shown in the figure). The metal mother board 3 is tightly attached to and covers the arc convex surface 11, the edge of the metal mother board 3 is fixed on the upper pressing die 1 through the pressing strip 12, and one surface, facing the processing cavity, of the metal mother board 3 is provided with the blue light prevention nano grating microstructure 31.

The utility model discloses apply to the lens and add man-hour, in getting into the processing die cavity with abundant even fused injection moulding material injection, solidification moulding obtains the lens, in the time of injection moulding, metal mother board 3 prevents through it that blue light nanometer grating microstructure 31 directly forms images the nanometer grating microstructure that corresponds on the arc lens, operation simple process, do not increase new process, production efficiency and yield improve greatly, lens after the shaping, the surface is smooth, the colour is even, no colour difference, it is effectual to prevent blue light, the light transmittance is more even, the vision is clear.

As shown in fig. 6, the utility model also discloses a take nanometer grating micro-structure prevent blue light lens 10, is through the utility model discloses the arc lens that the processing mold injection molding came out has at the concave surface of arc lens and prevents blue light nanometer grating micro-structure 101. And then carrying out subsequent treatment, protecting the blue-light-proof nano grating microstructure 101 on the surface of the lens, and carrying out anti-reflection, hardening and anti-fog treatment on the surface of the lens, so that an anti-reflection layer 20, a hardening layer 30 and an anti-fog layer 40 are sequentially formed on the convex surface and the concave surface of the blue-light-proof lens 10, and the finished product of the blue-light-proof lens with the simplified structure can be prepared.

In order to install fixed metal mother board 3 better, the utility model discloses go up moulding-die 1's top and form indent 13, layering 12 sets up in indent 13, and the cladding is hugged closely on arc convex surface 11 in the centre of metal mother board 3, and the edge of metal mother board 3 is buckled and is set up between indent 13 and layering 12 and with the help of bolt fastening, and guarantee metal mother board 3 is taut and hug closely seamless between the arc convex surface 11, when preventing the lens drawing of patterns, metal mother board 3 can not influenced follow-up injection moulding by the pulling.

The utility model discloses an optimize structural design and be, arc convex surface 11 and arc concave surface 21 are the elliptic arc shape face that corresponds with the lens camber. The utility model discloses can set up the mould according to the required radian of lens, same mould can be according to the performance requirement of design product more change take different nanometer grating micro-structure 31's metal mother board 3 to the required lens product of production design.

The utility model discloses the further optimal design of mould is, lower moulding-die 2 forms arc lead angle 22 on the both sides of arc concave surface 21, goes up moulding-die 1 and lower moulding-die 2 lock when together, and the arc lead angle 22 of lower moulding-die 2 is in the same place with the 11 marginal facies fits of arc convex surface of last moulding-die 1 to form the processing die cavity of lens.

In addition, the upper part of the upper pressing die 1 forms a T-shaped fixing frame 14, and the T-shaped fixing frame 14 is fixed below the upper die frame 15 through bolts. The upper mold frame 15 may be a lower frame with a downward opening, and a transverse plate of the T-shaped fixing frame 14 is embedded in the lower frame of the upper mold frame 15 and fixed by bolts. Correspondingly, go up moulding-die 1's top and respectively form an aforementioned indent 13 in T type mount 14's riser both sides for equipment layering 12 realizes the taut fixed to metal mother board 3. Lower moulding-die 2 passes through the top of bolt fastening at lower die carrier 23. The lower mold frame 23 may be an upper frame with an upward opening, and the bottom of the lower press mold 2 is embedded in the upper frame of the lower mold frame 23 and fixed by bolts.

The utility model discloses a directly mould plastics and form on the lens and prevent blue light nanometer grating microstructure 31, with the help of preventing blue light nanometer grating microstructure 31, can accurately filter 400nm-450nm high energy shortwave blue light harmful to the human eye, can let 465nm-500nm see through to the profitable blue light of human body again simultaneously, solved and prevented blue light glasses ubiquitous colour cast problem on the current market. The utility model discloses the lens of production is colourless high pass through, original color that can the high-fidelity resume object. Wear to adopt the utility model discloses the glasses of the lens equipment of manufacturing production not only can effectively avoid harmful blue light to the injury of people's eye, and the ophthalmic diseases that the prevention retina damage arouses can guarantee to see the undistorted color of object simultaneously.

The utility model discloses directly do nanometer grating microstructure on the arc lens, can realize the volume production. Compare and adopt glue to shift the technique, if adopt the glue laminating, need make nanometer grating micro-structure reuse glue laminating at planar lens on a substrate in advance, then pass through the hot-bending shaping again with planar lens, it is very troublesome to get up to the lens preparation that has the radian requirement like this, and the utility model discloses processing technology is simpler. Compared with the secondary forming technology, if the nano-grating microstructure is prepared on the base material in advance, then the base material with the nano-grating microstructure is put into an injection molding machine for injection molding on the base material structure, the deformation of the nano-grating microstructure can be caused by melting the surface part of the base material with the nano-grating microstructure in the injection molding process due to too high temperature of the injection molding material, so that the blue light prevention effect is influenced, and the reduction of the blue light prevention effect is caused, in order to avoid the deformation of the base material, a thicker protective layer is formed on the nano-grating microstructure by coating a film or a layer of the same base material for protecting the nano-grating microstructure is adhered by glue, and then the base material is put into the injection molding machine for injection molding, so that the production processes of adhering, drying and the like are increased, meanwhile, the production cost is increased, the production efficiency is reduced, and the influence of the compatibility of the glue and the base material, the thickness of the glue on the injection molding effect is caused, also influenced the yield to a certain extent, and the utility model discloses processing technology is simpler, and productivity ratio is high, the yield is also high.

In summary, the preferred embodiments of the present invention have been described above in detail, however, the present invention is not limited to the specific details of the above embodiments, and the technical solution of the present invention can be modified in a variety of simple modifications, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a take nanometer grating microstructure's prevent blue light lens mold processing which characterized in that: comprises an upper die and a lower die; the upper pressing die protrudes downwards to form an arc convex surface corresponding to the curvature of the lens, and a pressing strip is further arranged on the upper pressing die; the lower pressing die is concave downwards to form an arc-shaped concave surface corresponding to the curvature of the lens, the arc-shaped convex surface is opposite to the arc-shaped concave surface, the upper pressing die and the lower pressing die are buckled together to form a processing cavity of the lens, and the processing cavity is connected with the injection molding material flow channel; the metal mother board is tightly attached to and covers the arc-shaped convex surface, the edge of the metal mother board is fixedly pressed on the upper pressing die by virtue of the pressing strip, and one surface, facing the processing cavity, of the metal mother board is provided with a blue-light-proof nano grating microstructure.

2. The blue-light-proof lens processing mold with the nano-grating microstructure as claimed in claim 1, wherein: and a pressing groove is formed at the top of the upper pressing die, the pressing strip is arranged in the pressing groove, and the edge of the metal mother plate is bent and arranged between the pressing groove and the pressing strip and is fixed by means of bolts.

3. The blue-light-proof lens processing mold with the nano-grating microstructure as claimed in claim 1, wherein: the arc convex surface and the arc concave surface are elliptical arc surfaces corresponding to the curvature of the lens.

4. The blue-light-proof lens processing mold with the nano-grating microstructure as claimed in claim 1, wherein: and a T-shaped fixing frame is formed above the upper pressing die and is fixed below the upper die frame through bolts.

5. The blue-light-proof lens processing mold with the nano-grating microstructure as recited in claim 4, wherein: the upper die frame is in a lower frame shape with a downward opening, and a transverse plate of the T-shaped fixing frame is embedded in the lower frame of the upper die frame and fixed through bolts.

6. The blue-light-proof lens processing mold with the nano-grating microstructure as claimed in claim 4, wherein: the top of the upper pressing die forms a pressing groove on each of two sides of a vertical plate of the T-shaped fixing frame, the pressing strips are arranged in the pressing grooves, and the edges of the metal mother plate are bent and arranged between the pressing grooves and the pressing strips and are fixed through bolts.

7. The blue-light-proof lens processing mold with the nano-grating microstructure as claimed in claim 1, wherein: the lower pressing die is fixed above the lower die frame through bolts, the lower die frame is in an upper frame shape with an upward opening, and the bottom of the lower pressing die is embedded in an upper frame of the lower die frame and fixed through the bolts.

8. The blue-light-proof lens processing mold with the nano-grating microstructure as claimed in claim 1, wherein: the lower pressing die forms arc guide angles on two sides of the arc concave surface, and when the upper pressing die and the lower pressing die are buckled together, the arc guide angles of the lower pressing die and the arc convex surface of the upper pressing die are attached together.

9. The utility model provides a take nanometer grating microstructure prevent blue light lens which characterized in that: the arc-shaped lens is formed by injection molding of the blue-light-proof lens processing mold with the nano-grating microstructure as claimed in any one of claims 1 to 8, and the concave surface of the arc-shaped lens is provided with the blue-light-proof nano-grating microstructure.

10. The blue-light prevention lens with the nano-grating microstructure as claimed in claim 9, wherein: the convex surface and the concave surface of the blue-light-proof lens sequentially form an anti-reflection layer, a hard coating and an anti-fog layer.