TWM539627U - Polarized lenses and polarized glasses with good durability and consistency - Google Patents

Description

Polarized lenses and polarized glasses with excellent durability and bonding

The present invention relates to an article and a device for the user to wear to protect the user's eyes or to correct the user's vision, and in particular to a polarizing lens and polarizing glasses with excellent durability and bonding.

Referring to FIG. 1, a conventional lens manufactured by an injection molding technique includes a centrally located polarizing layer 11 and a lens body 12 and a lens layer respectively formed on opposite sides of the polarizing layer 11 by injection molding. 13. The thickness of the lens body 12 is greater than the total thickness of both the polarizing layer 11 and the lens layer 13. The lens layer 13 can cooperate with the lens body 12 to protect the polarizing layer 11 so that the polarizing layer 11 is not damaged by friction. Although the lens of the prior art has the above advantages, the lens body 12 and the lens layer 13 are susceptible to or affect the polarizing effect of the polarizing layer 11 due to the high temperature immediately after the film is formed, so that the polarizing light is caused. The effect of the layer 11 is weakened or lost, so that the conventional lens has a disadvantage of low yield at the time of production, and it is quite troublesome to be improved in the manufacturing process to particularly control the injection molding temperature.

It is an object of the present invention to provide a polarizing lens that is durable and has a good degree of bonding that overcomes at least one of the disadvantages of the prior art.

The polarizing lens with good durability and bonding includes a first protective layer, a second protective layer, a polarizing layer, and a lens body.

The first protective layer is mainly made of plastic and can transmit light, and includes a first mirror surface and a first reverse surface opposite to each other. The second protective layer is mainly made of plastic and is transparent to light and spaced apart from the first protective layer and includes a second mirror surface facing the first mirror surface and a second reverse surface opposite to the second mirror surface. The polarizing layer is disposed between the first mirror surface and the second mirror surface, and is fixedly bonded together with the first protective layer and the second protective layer. The lens body material is the same as the second protective layer, and is disposed on the second reverse surface in an injection molding manner.

The polarizing lens with good durability and good combination has the advantages that the first protective layer and the second protective layer can protect the polarizing layer, so that the polarizing layer is not affected by the high temperature of the injection molding, and the polarizing effect is good, and the lens body is good. The material and the second protective layer have the same bonding quality because of the same material, so the novel has the dual characteristics of good polarizing effect and good bonding quality, and is easy to manufacture.

It is an object of the present invention to provide a polarizing lens that is durable and has a good degree of bonding that overcomes at least one of the disadvantages of the prior art.

The polarized lens having excellent durability and bonding includes a frame, and a polarizing lens which is excellent in durability and bonding degree as described above and disposed on the frame.

The polarized lens with good durability and good combination is characterized by including the polarized lens with good durability and good combination, and therefore has the dual characteristics of good polarizing effect and good combination, and because of the durability and the good combination. In the manufacturing process of polarized lens injection molding, it can withstand large temperature changes and reduce the precision required for temperature control, and is easier to manufacture.

In the following description, similar or identical elements will be denoted by the same reference numerals.

Referring to FIG. 2, FIG. 3 and FIG. 4, a first embodiment of the polarized glasses with excellent durability and good combination includes a frame 2, and a durability and a good combination provided on the frame 2. Polarized lens 3. The first embodiment is a goggle worn by a locomotive rider, but in other embodiments of the present invention, it can also be a snow mirror for skiing, a frog mirror for swimming, a goggle for experiment, and Generally used for correcting eyesight, industrial safety glasses, or sunglasses.

The frame 2 includes a frame 21 which is provided in a ring shape for the polarizing lens 3 having excellent durability and bonding degree, and a head band 22 which is connected to opposite sides of the lens frame 21 at opposite ends thereof. Since the lens frame 21 and the headband 22 are conventional techniques and are not the focus of the present invention, the description thereof will be omitted.

The polarizing lens 3 excellent in durability and bonding includes a first protective layer 31 and a second protective layer 32 spaced apart from each other, and a polarizing layer 33 disposed between the first protective layer 31 and the second protective layer 32. And a lens body 34 that conforms to the second protective layer 32.

The first protective layer 31 is mainly composed of a polycarbonate-based material and is transparent to light, and can contain other additives for improving properties. The first protective layer 31 has a thickness T1 of 0.15 mm and includes a first mirror surface 311 attached to the polarizing layer 33 and a first reverse surface 312 opposite to the first mirror surface 311. In other embodiments of the present invention, the first protective layer 31 can also be composed only of polycarbonate, and its thickness T1 can also be from 0.1 mm to 0.25 mm.

The second protective layer 32 is mainly composed of a polycarbonate-based material and is transparent to light, and can contain other additives for improving properties. The second protective layer 32 has a thickness T2 of 0.15 mm and includes a second mirror surface 321 attached to the polarizing layer 33 and a second reverse surface 322 opposite to the second mirror surface 321 . In other embodiments of the present invention, the second protective layer 32 can also be composed only of polycarbonate, and its thickness T2 can also be from 0.1 mm to 0.5 mm.

The polarizing layer 33 can block polarized light polarized in a specific direction and allow polarized light polarized in a specific direction to penetrate, and has an effect of filtering polarized light. Since the technique of filtering the polarized light by the polarizing layer 33 is a conventional technique and is not a creative focus of the present invention, the description thereof is omitted here. The thickness T3 of the polarizing layer 33 is 0.05 mm, and the opposite surfaces of the polarizing layer 33 are respectively attached to the first mirror surface 311 and the second mirror surface 321 , and are located between the first mirror surface 311 and the second mirror surface 321 .

The lens body 34 is mainly made of a polycarbonate material and is made of the same material as the second protective layer 32, and can contain other additives for improving properties. The lens body 34 has a thickness T4 of 1 mm and is disposed on the second reverse surface 322 of the second protective layer 32. In other embodiments of the present invention, the lens body 34 can also be composed only of polycarbonate, and its thickness T4 can also be from 0.8 mm to 2.2 mm.

When the first embodiment is manufactured, the first protective layer 31 and the second protective layer 32 which are thin and flat and can be laminated are first bonded to the opposite sides of the polarizing layer 33, and then the first The protective layer 31, the second protective layer 32 and the polarizing layer 33 are laminated and fixed together. Since the first protective layer 31, the second protective layer 32, and the polarizing layer 33 are relatively thin, they can be bonded to each other smoothly, so that there is no uneven adhesion and uneven polarization which may occur when the plane and the arc surface are adhered. The problem of the effect. Next, the polycarbonate-based material is melted and ejected onto the second reverse surface 322 of the second protective layer 32, and after the polycarbonate-based material is cooled, the lens body 34 is formed, that is, the first embodiment is obtained. It should be noted that since the lens body 34 has a thick thickness and a curvature, it cannot be processed by a roll-bonding manufacturing method.

The first embodiment has the effect that the polarizing layer 33 is protected by the first protective layer 31 and the second protective layer 32, and is not directly formed with the molten polycarbonate material when the lens body 34 is injection molded. Contact, so it will not be damaged by high temperature and can maintain good polarization characteristics. Therefore, the first embodiment has the advantages of good polarization effect, high yield, and good quality, and since the polarizing layer 33 is not easily affected by the temperature of the shot during manufacture, the first embodiment also has lower temperature control precision requirements. It has the advantage of being easy to manufacture. In addition, the first embodiment also has the advantages of good bonding degree due to the same material design of the second protective layer 32 and the lens body 34, and can avoid the conventional adhesion of the polarizing layer 33 directly to the curvature by the adhesive. The large lens body 34 may result in a lack of optical effects.

Referring to FIG. 5 and FIG. 6, a second embodiment of the polarized glasses with good durability and good combination is similar to the first embodiment, except that the first protective layer 31 and the second embodiment of the second embodiment are different. The protective layer 32 and the polarizing layer 33 are located on the side of the arcuate concave of the lens body 34. In the second embodiment, the first protective layer 31, the second protective layer 32, and the polarizing layer 33 are laminated and fixed together, and then the lens body 34 is injection molded and disposed on the first layer. The second back surface 322 of the second protective layer 32. Since the first protective layer 31 and the second protective layer 32 are disposed on opposite sides of the polarizing layer 33 to protect the polarizing layer 33, the same effect as the first embodiment can be achieved. , do not repeat the description here.

The above is only the embodiment of the present invention, and the scope of the novel implementation cannot be limited thereto. Any simple equivalent change and modification according to the scope of the patent application and the patent specification of the present invention still belong to the novel patent. Covered by the scope.

2‧‧‧ frames
21‧‧‧ frames
22‧‧‧ headband
3‧‧‧Polarized lenses with excellent durability and bonding
31‧‧‧First protective layer
311‧‧‧ first mirror
312‧‧‧ first reverse
32‧‧‧Second protective layer
321‧‧‧Second mirror
322‧‧‧ second reverse
33‧‧‧ polarizing layer
34‧‧‧ lens body
T1‧‧‧ thickness
T2‧‧‧ thickness
T3‧‧‧ thickness
T4‧‧‧ thickness

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a cross-sectional view of a conventional lens; Figure 2 is a new type of polarizing glasses with excellent durability and bonding. 1 is a perspective view of a first embodiment; FIG. 3 is a cross-sectional view of a polarizing lens with good durability and bonding degree of the first embodiment; FIG. 4 is a polarized light with good durability and bonding degree of the first embodiment. A schematic view of a manufacturing process of the lens; FIG. 5 is a cross-sectional view of the polarizing lens with good durability and good bonding of a second embodiment of the polarizing glasses with good durability and good combination; and FIG. 6 is the second embodiment A schematic diagram of a manufacturing process of the polarized lens with good durability and good bonding.

3‧‧‧Polarized lenses with excellent durability and bonding

31‧‧‧First protective layer

311‧‧‧ first mirror

312‧‧‧ first reverse

32‧‧‧Second protective layer

321‧‧‧Second mirror

322‧‧‧ second reverse

33‧‧‧ polarizing layer

34‧‧‧ lens body

T1‧‧‧ thickness

T2‧‧‧ thickness

T3‧‧‧ thickness

T4‧‧‧ thickness

Claims (6)

A polarizing lens with good durability and good bonding comprises: a first protective layer mainly composed of plastic and capable of transmitting light, and comprising a first mirror surface and a first reverse surface opposite to each other; a second protective layer, mainly Constructed of plastic and transparent to light, and spaced apart from the first protective layer, and comprising a second mirror facing the first mirror and a second opposite surface opposite to the second mirror; a polarizing layer disposed at The first mirror surface and the second mirror surface are fixed together with the first protective layer and the second protective layer by rolling and bonding; and a lens body is made of the same material as the second protective layer, and is injection molded. Grounded on the second reverse side. A polarizing lens excellent in durability and bonding as described in claim 1, wherein the second protective layer is mainly composed of a polycarbonate-based material, and the lens body is mainly composed of a polycarbonate-based material. The polarizing lens of the first aspect of the invention, wherein the first protective layer has a thickness of 0.1 mm to 0.25 mm, and the second protective layer has a thickness of 0.1 mm to 0.5 mm, the polarizing layer. The thickness of the lens body is 0.05 mm, and the thickness of the lens body is 0.8 mm to 2.2 mm. The polarizing lens of the lens of the present invention, wherein the thickness of the lens body is greater than the thickness of the polarizing layer, the first protective layer, and the third protective layer. The polarizing lens of the first aspect of the present invention, wherein the lens body and the second back surface of the second protective layer are curved. A polarizing lens excellent in durability and bonding, comprising: a frame; and a polarizing lens excellent in durability and bonding as set forth in any one of claims 1 to 5, disposed on the frame.