CN203101675U

CN203101675U - Polarized light lens structure

Info

Publication number: CN203101675U
Application number: CN 201320041394
Authority: CN
Inventors: 李俊男
Original assignee: XIAMEN JS POLARIZERS TECHNOLOGY Co Ltd
Current assignee: XIAMEN JS POLARIZERS TECHNOLOGY Co Ltd
Priority date: 2013-01-25
Filing date: 2013-01-25
Publication date: 2013-07-31
Anticipated expiration: 2023-01-25

Abstract

The utility model relates to a lens and particularly relates to a polarized light lens structure which comprises a polarized light diaphragm layer, a glue layer and a lens layer which are stacked in order. The polarized light diaphragm layer is a combined diaphragm which is formed by combining a TAC layer, a PVA layer and a TAC layer, wherein the lens layer is a lens made of a PMMA material. The polarized light lens in the polarized light lens structure is a polarized light lens which is great in optical condition stability and lens internal stress function.

Description

A kind of structure of polarized lenses

Technical field

The utility model relates to eyeglass, especially relates to a kind of structure of polarized lenses.

Background technology

In order to filter the dazzling light that the sun impinges upon the equality direction on the water surface, land or the snowfield, people generally wear polaroid glasses, and polaroid glasses are processed into suitable big or small eyeglass with the polarisation nude film and are installed in the mirror holder and constitute.The effect of polaroid glasses is exactly a characteristic of having utilized polarized lenses---and be exactly only to allow that the light of a certain particular polarization passes in the natural light.Polarized lenses adheres to one deck light polarizing film and forms on the ordinary optical eyeglass.Optical mirror slip can adopt glass material or macromolecule material and since macromolecule material compare glass material have in light weight, be easy to production and processing, also replaced glass mirror substantially so the macromolecule material eyeglass has extensively adopted.Only discuss below at the polarized lenses of macromolecule material.

The manufacturing process of existing polarized lenses (nude film) mainly comprises following several: A). as publication number be 202256743U patent documentation disclosed, by upper and lower two optics PC plate applying clamping a slice polarisation diaphragms, utilize the PC polarized lenses of mould plastotype after the thermoplastic.B). as publication number be 101774248A patent documentation disclosed, the polarisation diaphragm is fixed on the surface of master mold, again male model and master mold are carried out whole matched moulds, then the PC plastic pellet is formed the jelly of thickness through heating, enter in the die cavity by charging aperture, PC raw material and light polarizing film are combined, injection mo(u)lding PC eyeglass, this technology claims jetting formation process in the PC film again.C). by upper and lower two optics nylon sheet applying clamping a slice polarisation diaphragms, utilize the nylon polarized lenses of mould plastotype after the thermoplastic.D). as publication number be 102749724A patent documentation disclosed, the location division that the polarisation diaphragm is divided by its four corners and following film top end face be formed for the molded lenses dashpot the buffering fin cooperate positioning and fixing after, again nylon material is formed a die cavity ejection formation for molded lenses from patrix near counterdie, this technology claims jetting formation process in the nylon membrane again.E). as publication number be 101334532A patent documentation disclosed, light polarizing film is placed between 2 layers of PMMA sheet material, and all is coated with layer of adhesive on the top layer up and down of light polarizing film, light polarizing film and 2 layers of PMMA are bonded as one, produce polarisation sheet material; Polarisation sheet material is cut into the polarisation nude film; The polarisation nude film is placed vacuum environment,, and produce the fur of polarized lenses R value,, via grinding, crude green body, repair a die, middle throwing, carefully throw operation, produce polarized lenses the workprint of polarized lenses R value through extrusion equipment through 100-140 degree centigrade of thermoplastic.

The manufacturing process of above-mentioned several polarized lenses is all in the some shortcomings part, optical condition stability and eyeglass internal stress or all lack, or can't take into account.As everyone knows, the unstable rule of optical condition certainly leads to influence for wearer's eyesight, and the existence of eyeglass internal stress will inevitably exert an influence to the physical property and the optical property of eyeglass, should eliminate as much as possible in the eyeglass manufacturing.Therefore, seeking the little and stable high polarized lenses of optical condition of a kind of internal stress is to be badly in need of the technical matters that solves in the industry.

The utility model content

Therefore, the production method that the utility model proposes a kind of improved polarized lenses is produced the little and stable high polarized lenses of optical condition of a kind of internal stress.

The technical solution of the utility model is as follows:

A kind of structure of polarized lenses comprises the light polarizing film lamella, a glue-line and the mirror plate layers that stack gradually.

Wherein, described light polarizing film lamella is a compound film sheet, is composited by TAC layer, PVA layer, TAC layer.

Wherein, described mirror plate layers is the eyeglass of PMMA material.

The manufacture method of above-mentioned polarized lenses comprises the steps:

A, cut-parts: choose the polarisation diaphragm, and be cut into the diaphragm size of producing eyeglass;

B, gluing: evenly apply bond on an above-mentioned surface of having cut out the polarisation diaphragm of size;

C, curved film:, make it meet lower mould surface curvature degree to the stretching of extending of the above-mentioned polarisation diaphragm that has applied bond;

D, injection: the diaphragm behind the above-mentioned curved film is placed counterdie surface and fixing, behind the upper and lower mould matched moulds, penetrate fused solution from die cavity, wherein the temperature of fused solution is 220-260 ℃;

E, delivery: the polarized lenses semi-manufacture that take out moulding after cooling in the mould;

F, sclerosis: above-mentioned polarized lenses semi-manufacture are carried out case-hardening handle.

Wherein, described polarisation diaphragm is the TAC-PVA-TAC compound film sheet.

Wherein, described fused solution is the fused solution of PMMA material.

Polarized lenses of the present utility model is to make by the manufacture method of above-mentioned improved polarized lenses, is a kind of optical condition stability and the eyeglass internal stress function good polarized lenses of holding concurrently.

Description of drawings

Fig. 1 is existing manufacturing process B) polarized lenses of manufacturing carries out internal stress test result figure.

Fig. 2 is existing manufacturing process D) polarized lenses of manufacturing carries out internal stress test result figure.

Fig. 3 is the structural representation of the polarized lenses of method manufacturing of the present utility model.

Fig. 4 is that the polarized lenses of process manufacturing of the present utility model carries out internal stress test result figure.

Embodiment

Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.

The applicant analyzes and tests at the manufacturing process of existing several polarized lenses, finds following situation:

1. existing manufacturing process A), B) in owing to be to adopt PC material eyeglass, so the eyeglass internal stress of PC polarized lenses is bigger.Consult shown in Figure 1ly, it is by manufacturing process B) the polarized lenses of manufacturing carry out the internal stress test case, from test result as seen, there is very significantly rainbow in this polarized lenses, shows that the internal stress of this eyeglass is bigger.

2. C in the existing manufacturing process), D) in owing to be to adopt the nylon material eyeglass, though the nylon material lens performance is higher than PC material eyeglass, still have some internal stresss.Consult shown in Figure 2ly, it is by manufacturing process D) the polarized lenses of manufacturing carry out the internal stress test case, from test result as seen, this polarized lenses exists some ghosts and slight rainbow, shows that there are some internal stresss in this eyeglass.

3. owing to employing E C existing manufacturing process A))) is to produce Polarizer, and then the mode of production of thermoplastic plastotype, therefore can not pre-set astigmatism, optics processing conditionss such as the number of degrees, optic center point, can only realize in the later stage fining-off, therefore the optical condition instability of the polarized lenses of producing.In addition, the eyeglass material of this manufacturing process combines the back and merges without high temperature with light polarizing film, and the eyeglass of production certainly exists internal stress.

In order to satisfy optical condition stability, adopting the manufacturing process of ejection formation in the film is optimal selection.The applicant discovers at the generation of the internal stress of eyeglass in the manufacturing process of ejection formation in the film again: its self-characteristic with polarisation diaphragm, eyeglass material is relevant, and the production technology that combines with eyeglass with diaphragm is relevant again.

Existing processes B), D) in diaphragm combine with eyeglass well, the diaphragm material is still good, but because the factor of eyeglass self material, and causes the existence of internal stress.And existing technology E) middle eyeglass employing PMMA (chemical name: polymethylmethacrylate, being commonly called as: acrylic or polymethyl methacrylate) material hardness is higher, utilize and eliminate the eyeglass internal stress, but it is difficult to combine with diaphragm, therefore can only utilize technology E) method diaphragm combined with eyeglass fix, yet in above-mentioned analysis as can be known, this technology can not guarantee optical condition stability.

Therefore, the applicant seeks the different diaphragm material of some performances again and substitutes.The applicant finds the PMMA-TAC-PMMA compound film sheet, the TAC-PVA-PMMA compound film sheet, the TAC-PVA-TAC-PMMA compound film sheet, the CAP-PVA-CAP-PMMA compound film sheet, diaphragms such as TAC-PVA-CAP-PMMA compound film sheet can with the eyeglass good combination of PMMA material (because counterdie and the same material of eyeglass of compound film sheet), but make diaphragm can meet the counterdie surface curvature degree of eyeglass mfg. moulding die owing to penetrating the stretching film that needs to extend in the molding production process in the film, the bigger cause of PMMA film hardness in this process because in the above-mentioned compound film sheet, the diaphragm slight crack takes place easily, will offset diaphragm slight crack factor and cause the influence of diaphragm internal stress in subsequent production, difficulty is very big.In addition, the above-mentioned also higher and difficult buying of diaphragm cost.

The applicant gropes through constantly studying, and has realized that finally jetting formation process is made polarized lenses in a kind of respond well PMMA film, has not only satisfied the optical condition of producing eyeglass, has also farthest eliminated the existence of eyeglass internal stress simultaneously.

A kind of manufacture method of polarized lenses comprises the steps:

A, cut-parts: choose the polarisation diaphragm, and be cut into the diaphragm size of producing eyeglass; What described polarisation diaphragm was selected for use is the TAC-PVA-TAC compound film sheet, cuts out the polarisation diaphragm and can manually cut out by the die-cut cut-parts of die cutting device or by moulds of industrial equipment.

B, gluing: evenly apply bond on an above-mentioned surface of having cut out the polarisation diaphragm of size.

C, curved film:, make it meet lower mould surface curvature degree to the stretching of extending of the above-mentioned polarisation diaphragm that has applied bond.

D, injection: the diaphragm behind the above-mentioned curved film is placed counterdie surface and fixing, behind the upper and lower mould matched moulds, penetrate fused solution from die cavity, wherein the temperature of fused solution is 220-260 ℃; Described fused solution is the fused solution of PMMA material.Wherein, mould and locator meams thereof can adopt existing thimble location or by the cooperate location of die buffer fin with diaphragm shapes, and for example several moulds of being disclosed of patent publication No. 202522723U, 202147360U, 102689389A are produced.

E, delivery: the polarized lenses semi-manufacture that take out moulding after cooling in the mould; Cooling utilizes natural cooling to realize getting final product.

F, sclerosis: above-mentioned polarized lenses semi-manufacture are carried out case-hardening handle.Case-hardening is handled and is promptly plated the eyeglass reinforced film, and the conventional processing step that this is treated to the eyeglass of macromolecule material no longer describes in detail in this.

Consult shown in Figure 3ly, the structure according to a kind of polarized lenses of said method manufacturing comprises the light polarizing film lamella 1, a glue-line 2 and the mirror plate layers 3 that stack gradually.

Wherein, described light polarizing film lamella 1 is a compound film sheet, is composited by TAC layer 11, PVA layer 12, TAC layer 13.Described mirror plate layers 3 is the eyeglass of PMMA material.

Consult shown in Figure 4ly, a kind of polarized lenses of said method manufacturing is carried out the internal stress test case, from test result as seen, this polarized lenses ghost basically all be can't see, and shows that it is fairly obvious that this manufacture method is eliminated the effect of eyeglass internal stress.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.

Claims

1. the structure of a polarized lenses comprises the light polarizing film lamella, a glue-line and the mirror plate layers that stack gradually.

2. the structure of polarized lenses according to claim 1, it is characterized in that: described light polarizing film lamella is a compound film sheet, is composited by TAC layer, PVA layer, TAC layer.

3. the structure of polarized lenses according to claim 1, it is characterized in that: described mirror plate layers is the eyeglass of PMMA material.