TWM542774U - Anti-fog and photochromic lens - Google Patents

Description

Anti-fog and discoloration lens

The present invention relates to a lens with anti-fog and discoloration, in particular to an anti-fog sheet on the inner side of the lens body, a color-changing sheet on the outer side of the lens body, and an anti-fog sheet and a color-changing sheet and a lens body The combination is integrated to make the lens have anti-fog and discoloration effects.

According to the general lens (such as helmet lens or ski lens...), the material is PC material, and it does not have anti-fog effect. Considering that the lens will generate fog in the confined space and body temperature, in order to achieve anti-fog effect, It is necessary to take corresponding anti-fog measures, and adding a layer of anti-fog film is the most common method. Traditional anti-fog lenses are generally manufactured by direct adhesive. The way of bonding is simply to prevent The fog film is directly glued to the inner side of the lens, and it is easy to have defects such as unstable adhesion and looseness, and the lens molded by PC has a smooth surface and is itself bonded with an anti-fog film (generally TAC anti-fog film). It is more difficult, even if the corresponding groove is provided on the lens, it is difficult to ensure the bonding effect. Therefore, the anti-fog lens formed by the direct bonding method is not reliable as a whole; and the general lens material is PC material. Does not have the sensitization effect, considering that the lens is used in the violent and glare of the sun environment, in order to achieve the effect of the lens to achieve the color-changing visor and anti-glare effect, it is necessary to take corresponding Color measures, and the addition of a layer of photochromic material is the most common practice. Traditional color-changing lenses are usually coated with a layer of photosensitive color-sensitive material directly on the outer side of the lens, because the color-changing material coating is directly sprayed on the outer side of the lens. After sun and rain, it will soon fall off, fail, and have a short life. Therefore, the color-changing lens formed by direct spraying has yet to be improved.

The purpose of this creation is to provide a lens with anti-fog and discoloration, so that the lens has anti-fog and discoloration effects at the same time, and the combination of the whole structure is extremely reliable, even if the sun and rain are not easy to fall off and fail, making it anti-fog. And the photochromic effect can be maintained for a long time.

The lens with anti-fog and discoloration is mainly provided with a lens main body, an anti-fog sheet and a color-changing sheet, wherein the anti-fog sheet is bonded with a first PC film by optical glue. And forming an anti-fog sheet, wherein the color-changing sheet is formed by a photochromic material between a second PC film and a third PC film and is bonded by an optical glue phase, and the photochromic material is sandwiched between The second PC film and the third PC film are formed by an injection molding die of the lens, and the anti-fog sheet is bonded to the inner side surface of the lens body, and the color changing film is bonded to the outer side of the lens body, and the appearance thereof It is a single layer lens.

The invention has an anti-fog and discoloration lens, wherein the anti-fog film is a triacetate film (TAC).

The invention has an anti-fog and discoloration lens, wherein the anti-fog film and the first PC film have a thickness of between 0.3 and 0.6 mm.

The invention has an anti-fog and discoloration lens, wherein the photochromic material is an ultraviolet photosensitive material.

The invention has an anti-fog and discoloration lens, wherein the thickness of the second PC film and the third PC film is between 0.1 mm and 0.5 mm.

The invention has an anti-fog and discoloration lens, wherein the photochromic material is a coating structure sprayed between the second PC film and the third PC film, and the photochromic material is sprayed with the optical glue. The second PC film is cemented with the third PC film.

The invention has the advantages of anti-fog and discoloration lens, and the advantages thereof are: firstly, the anti-fog film is bonded with the first PC film by optical glue to form an anti-fog sheet, and the photosensitive color-changing material is placed on the second PC film and the third. A color-changing sheet is formed between the PC films by optical glue bonding, and then, by means of in-mold injection molding, the PC lens is combined with the anti-fog sheet and the color-changing sheet during the curing process to form a Single-layer lens with anti-fog and discoloration, such anti-fog color-changing lens, the layer is almost integrated with the layer, is not easy to loose, stable and reliable, even if it is exposed to the sun and rain, it will not be anti-fog and photosensitive color-changing material. It has an effect, so that its anti-fog and sensitizing effect can be maintained for a long time, and it can be widely applied to lenses such as helmet lenses, ski lenses, etc. which require anti-fog and sensitization effects.

For the purpose of achieving the above-mentioned purpose and effect of the above-mentioned use, a preferred and feasible embodiment will be described, and the details are as follows:

For the embodiment of the present invention, as shown in the first to third figures, a lens main body 1, an anti-fog sheet 2 and a color changing sheet 3 are mainly provided, wherein the anti-fog sheet 2 is composed of an anti-fog film 21 and An anti-fog sheet 2 formed by cementing a first PC film 22 by an optical glue phase, the anti-fog film 21 is a triacetate film (TAC), and the anti-fog film 21 has a thickness of 0.3 to 0.6 mm. The thickness of the first PC film 22 is between 0.3 and 0.6 mm, and the color changing sheet 3 is placed between the second PC film 32 and a third PC film 33 by the photosensitive material 31 and bonded by optical glue. The photosensitive material 31 is a film structure interposed between the second PC film 32 and the third PC film 33, and the two sides of the photosensitive material 31 are bonded to the second PC film 32 by optical glue. Between the three PC films 33, or the photosensitive color-changing material 31 is a coating structure sprayed between the second PC film 32 and the third PC film 33, and the photosensitive plastic material 31 is sprayed with the optical glue. The second PC film 32 is cemented with the third PC film 33, the photosensitive color-changing material 31 is an ultraviolet photosensitive material, and the thickness of the second PC film 32 and the third PC film 33 is 0.1 mm. Between -0.5 mm, the anti-fog sheet 2 is bonded to the inner side surface of the lens body 1. The color-changing sheet 3 is bonded to the outer side of the lens body 1, so that it is an anti-fog and discolored lens structure. .

When manufacturing, please refer to the first to fifth figures, the anti-fog film 21 and the first PC film 22 are cemented by optical glue, and are bent and shaped to form an anti-fog matching the inner side surface of the lens main body 1. The sheet 2, the photosensitive material 31 is placed between the second PC film 32 and the third PC film 33 and bonded by optical glue, or the photosensitive material 31 is sprayed on the second PC film 32 and the third PC film. The coating structure between the 33s is then also subjected to bake and shape forming to form a color-changing sheet 3 that matches the outer side surface of the lens main body 1, and the anti-fog sheet 2 and the color-changing sheet 3 are previously placed in the injection molding mold of the lens. In the cavity, the anti-fog sheet 2 is placed in the convex mold of the molding die (ie, the inner side surface of the lens main body 1), and the color changing sheet 3 is located in the concave mold of the molding die (ie, the outer side surface of the lens main body 1), and will be in a molten state. The PC material is injected into the cavity of the molding die, and before the PC is cured, the PC material is at a high temperature of 260 to 280 ° C, and the PC material is combined with the antifogging sheet 2 and the color changing sheet 3 by using the high temperature of 260 to 280 ° C. Together, after solidification molding, a multi-layer structure can be obtained. The lens of the body, the appearance of which is a single layer lens, the lens can be set as the helmet lens 4 (as shown in the fourth figure) or the ski lens 5 (as shown in the fifth figure), etc., the lens can be simultaneously protected The effect of fog and discoloration.

In addition, it should be noted that the above-mentioned high temperature of 260 to 280 ° C is specifically the temperature of the PC material flowing into the cavity of the molding die when the pressure is injected into the mold after the screw is melted; In the molding, the specific pressure and time are not limited, so as to form the principle; it should be emphasized that the PC film is indispensable because it is a key part of the whole process, only by using it and anti-fog. After the film 21 and the photosensitive color-sensitive material 31 are combined into the anti-fog sheet 2 and the color-changing sheet 3, it can be adapted to the subsequent injection molding in the molding die.

In summary, the present invention has achieved the intended use and effect, and is more desirable and practical than the prior art. However, the above embodiments are only specifically described for the preferred embodiment of the present invention. This embodiment is not intended to limit the scope of the present invention, and all other equivalents and modifications may be included in the scope of the invention covered by the present invention.

1‧‧‧ lens body
2‧‧‧Anti-fog sheet
21‧‧‧Anti-fog film
22‧‧‧First PC film
3‧‧‧Color changing sheets
31‧‧‧Photochromic materials
32‧‧‧Second PC film
33‧‧‧ Third PC film
4‧‧‧ helmet lenses
5‧‧‧ ski lens

The first figure shows an exploded perspective view of the lens of the present embodiment. The second figure shows a schematic view of the combination of the anti-fog sheet and the color-changing sheet of the present embodiment. The third figure shows a combination of anti-fog and color-changing lenses in the present embodiment. The fourth figure shows a schematic view of a helmet lens for the present embodiment. The fifth figure is a schematic view of the present embodiment for a ski lens.

1‧‧‧ lens body

2‧‧‧Anti-fog sheet

21‧‧‧Anti-fog film

22‧‧‧First PC film

3‧‧‧Color changing sheets

31‧‧‧Photochromic materials

32‧‧‧Second PC film

33‧‧‧ Third PC film

Claims (6)

The invention relates to a lens with anti-fog and discoloration, which mainly comprises a lens body, an anti-fog sheet and a color-changing sheet, wherein the anti-fog sheet is cemented by an anti-fog film and a first PC film by an optical glue. Forming an anti-fog sheet, wherein the color-changing sheet is formed by a photochromic material between a second PC film and a third PC film and is bonded by an optical glue phase, the photochromic material being sandwiched between the second The PC film and the third PC film are formed by an injection molding die of the lens, and the anti-fog sheet is bonded to the inner side surface of the lens body, and the color-changing sheet is bonded to the outer side surface of the lens body, and the appearance thereof is It is a single layer lens. The anti-fog and discoloration lens according to claim 1, wherein the anti-fog film is a triacetate film (TAC). The anti-fog and discoloration lens according to claim 1, wherein the anti-fog film and the first PC film have a thickness of between 0.3 and 0.6 mm. The anti-fog and discoloration lens according to claim 1, wherein the photochromic material is an ultraviolet photochromic material. The anti-fog and discoloration lens according to claim 1, wherein the second PC film and the third PC film have a thickness of between 0.1 mm and 0.5 mm. The anti-fog and discoloration lens according to claim 1, wherein the photochromic material is a coating structure sprayed between the second PC film and the third PC film, and is sprayed by using an optical glue. The second PC film having the photosensitive material is cemented with the third PC film.