TWI780743B - Optical material, optical product and manufacturing method thereof - Google Patents

Abstract

An optical material used for making an optical product includes a light-resistant material modified by surface modification of titanium dioxide, so that the lens at least resists light with a wavelength between 280 nanometers and 380 nanometers. An optical product and a manufacturing method thereof are also provided.

Description

Optical material, optical product and manufacturing method thereof

The present invention relates to an optical material, an optical product and a manufacturing method thereof, and more particularly to an optical material, an optical product and a manufacturing method thereof capable of at least resisting light with a wavelength between 280 nm and 380 nm.

Generally speaking, natural light sources (such as sunlight) or light sources from other electronic devices (such as LED light sources of computer or mobile phone screens) are likely to cause damage to human eyes, especially those that cause vision loss such as cataracts and macular degeneration. disease. Among the above-mentioned light sources, the light bands that are more harmful to human eyes include long-wave ultraviolet light (UVA) and near ultraviolet light (UVB). These two light wave bands cover the wavelength range from 280 nm to 380 nm. Furthermore, the above-mentioned ultraviolet light is known to cause damage to the eyes by producing optical products and chemical changes in the retina. Therefore, in order to reduce the damage caused by ultraviolet light to the eyes, how to provide users with better optical products has become an important subject to be discussed in the present invention.

The invention provides an optical material, an optical product and a manufacturing method thereof, which can improve the protection ability for eyes.

An optical material for making an optical product of the present invention includes a light-resistant material modified on the surface of titanium dioxide, so that the optical product at least resists light with a wavelength between 280 nm and 380 nm.

In an embodiment of the present invention, the surface of the above-mentioned anti-light material has ethylenic functional groups.

In an embodiment of the present invention, the above-mentioned ethylenic functional groups include propenyl groups.

In an embodiment of the present invention, the above light-resistant material is grafted onto another light-resistant material.

An optical product includes a body and a light-resistant layer. The anti-light layer is formed on the body. The anti-light layer is formed by the anti-light material modified on the surface of titanium dioxide, so that the optical product can at least resist light with a wavelength between 280 nm and 380 nm.

In an embodiment of the present invention, the above-mentioned body and the light-resistant layer are bonded by ethylenic functional groups.

In an embodiment of the present invention, the above-mentioned ethylenic functional groups include propenyl groups.

In an embodiment of the present invention, the above-mentioned optical product has a transmittance of 0.1% to 50% for light having a wavelength of 280 nm to 380 nm.

In an embodiment of the present invention, the above-mentioned anti-light layer enables the optical product to further resist light with a wavelength between 380 nm and 500 nm.

In an embodiment of the present invention, the above-mentioned optical product has a transmittance of less than 70% for light having a wavelength between 380 nm and 500 nm.

In an embodiment of the present invention, the above-mentioned anti-light layer is formed on the surface of the main body.

In an embodiment of the present invention, the above-mentioned anti-light layer is formed in the main body.

In an embodiment of the present invention, the above-mentioned light-resistant layer has a distance from the edge of the main body.

In an embodiment of the present invention, the above-mentioned bulk material and the anti-light material are not doped with each other.

A manufacturing method of an optical product at least includes the following steps. Provide ontology. A light-resistant layer is formed on the main body, wherein the light-resistant layer is formed by a light-resistant material modified on the surface of titanium dioxide, so that the optical product at least resists light with a wavelength between 280 nm and 380 nm.

In an embodiment of the present invention, the above-mentioned light-resistant layer is not formed by mixing method.

In an embodiment of the present invention, the above-mentioned titanium dioxide undergoes surface modification through a condensation reaction.

In an embodiment of the present invention, the step of forming the light-resistant layer further includes providing a solution including a light-resistant material on the body and performing a curing process to generate an ethylenic functional group bond between the body and the light-resistant material. .

In an embodiment of the present invention, the above solution is provided by spraying, soaking, coating or transfer printing process.

In an embodiment of the present invention, the above-mentioned ethylenic functional groups include propenyl groups.

Based on the above, the optical material of the present invention introduces titanium dioxide with anti-ultraviolet light effect, and the surface modification can increase the bonding ability between the optical material and the surface of the body, so that the adhesion between the optical material and the body can be improved, Increase the adhesion between the two, so the optical products made of the aforementioned optical materials can effectively resist the ultraviolet light wavelength band (280 nm to 380 nm), thereby reducing the damage caused by ultraviolet light to the eyes , Improve the protection ability of the eyes.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

The preferred embodiments of the present invention will be described in detail below with reference numerals and illustrated with drawings. Where possible, the illustrations omit unnecessary components for clarity.

Directional terms (eg, up, down, right, left, front, back, top, bottom) as used herein are used pictorially for reference only and are not intended to imply absolute orientation.

FIG. 1A is a schematic top view of an optical product according to an embodiment of the present invention. FIG. 1B is a schematic cross-sectional view of an optical product according to an embodiment of the invention. FIG. 1C is a graph showing the relationship between transmittance and wavelength of an optical product according to an embodiment of the present invention.

1A to 1C, in this embodiment, the optical product 100 includes a body 110 and a light-resistant layer 120, wherein the light-resistant layer 120 is formed on the body 110, and the light-resistant layer 120 is formed by optical materials. Here, the optical product 100 of this embodiment can be an optical product as a contact lens, or as an optical product of general external wear glasses, but the present invention is not limited thereto. In other embodiments, the optical product can be used as other types lenses, screen protectors or other suitable optical products.

Furthermore, the optical material may include a light-resistant material modified on the surface of titanium dioxide (TiO ₂ ). Therefore, the light-resistant layer 120 formed by the above-mentioned optical material can make the optical product 100 resist at least wavelengths between 280 Light between nanometers and 380 nanometers. Accordingly, the optical material of this embodiment introduces titanium dioxide with anti-ultraviolet light effect, and the surface modification can increase the bonding ability between the optical material and the surface of the body 110, so that the adhesion between the optical material and the body can be improved Therefore, the optical product 100 made of the aforementioned optical materials can effectively resist the ultraviolet light wavelength band (280 nm to 380 nm), thereby reducing the impact of ultraviolet light on the eyes. The damage caused increases the ability to protect the eyes. Here, titanium dioxide can be surface-modified on the light-resistant material by condensation reaction or in any suitable way. It should be noted that the present invention does not limit the surface modification method, which can be selected according to actual design requirements.

In this embodiment, as shown in FIG. 1C , the optical product 100 has a transmittance of 0.1% to 50% for light with a wavelength between 280 nm and 380 nm, so the optical product 100 of this embodiment Product 100 is indeed effective against UV wavelengths (280nm to 380nm). The transmittance here may be the section average transmittance of light with a wavelength between 280 nm and 380 nm.

In some embodiments, the surface of the light-resistant material has ethylenic functional groups. For example, the ethylenic functional groups include acrylic groups. Therefore, the body 110 and the light-resistant layer 120 may be bonded by the aforementioned ethylenic functional groups. To improve the bonding ability between the light-resistant layer 120 and the main body 110 , but the invention is not limited thereto.

In some embodiments, the light-resistant material is grafted onto another light-resistant material. For example, the other light-resistant material can be made of an anti-blue light material (anti-blue light with a wavelength between 380 nm and 500 nm). light) surface grafted with the aforementioned anti-light material (resistance to light with a wavelength between 280 nm and 380 nm), so that the light-resistant layer 120 can make the optical product 100 further resist the light with a wavelength between 380 nm and 500 nm light between nanometers, and as shown in Figure 1C, the optical product 100 can have a transmittance of light with a wavelength between 380 nm and 500 nm that is less than 70% (which can be between 380 nm and 500 nm) 500 nanometers of light), so the optical product 100 can not only resist the ultraviolet light band, but also can further resist the blue light band, in other words, the optical product 100 can have anti-blue light and anti-ultraviolet light at the same time function, further improving the eye protection ability of the optical product 100. In addition, since the anti-blue light material is usually dark yellow, it is not easy to be accepted by users in product applications, and the color of the composite material (anti-blue light material and the aforementioned anti-light material) added with titanium dioxide can change from dark yellow to white, so it can be used Improve material acceptance, but the invention is not limited thereto.

In this embodiment, the anti-light layer 120 can be formed on the surface of the main body 110. For example, as shown in FIG. In other words, the anti-light layer 120 can be arranged on the central area of the surface of the body 110, but the present invention is not limited thereto. In other embodiments, the anti-light layer 120 can also be arranged according to actual design requirements. It is arranged at any suitable position on the body 110 .

The main flow of an optical product according to an embodiment of the present invention is described below with the aid of diagrams. FIG. 2 is a flowchart of an optical product according to an embodiment of the present invention. 3A to 3B are schematic diagrams of a manufacturing method of an optical product according to an embodiment of the present invention. It should be noted that the present invention is not limited to the following manufacturing methods, as long as the light-resistant layer 120 can be formed on the main body 110 , it falls within the protection scope of the present invention.

Referring to FIG. 2 , the body 110 is provided (step S100 ). Next, a light-resistant layer 120 is formed on the body 110 (step S200), wherein the light-resistant layer 120 is formed by a light-resistant material modified by titanium dioxide surface, so that the optical product 100 manufactured by the above method is at least resistant to Light with a wavelength between 280 nanometers and 380 nanometers, accordingly, the optical material of the present invention introduces titanium dioxide with anti-ultraviolet light effect, and the surface modification can increase the bonding ability between the optical material and the surface of the body, so First, it can improve the adhesion between the optical material and the body, and increase the adhesion between the two. Therefore, the optical products made of the aforementioned optical materials can effectively resist the ultraviolet wavelength band (280 nm to 380 nm) Nano), thereby reducing the damage caused by ultraviolet light to the eyes and improving the protection ability of the eyes.

Please refer to FIG. 3A and FIG. 3B. Furthermore, because of the problem of poor compatibility between the light-resistant material and the body using the blending method, and the addition cost of the blending method is high, the anti-light resistance material of this embodiment The optical layer 120 can be formed without mixing method (for example, the material of the body 110 and the light-resistant material are not doped with each other), and is formed, for example, by the following steps. First, as shown in FIG. 3A , a solution S including a light-resistant material is provided on the body 110 , for example, the solution S may be provided by spraying, soaking, coating or transfer printing. Then, as shown in FIG. 3B , through a curing process (for example, irradiating by the lighting device 10 ) to generate an ethylenic functional group (eg, acrylic group) bond between the body 110 and the light-resistant material. Therefore, the manufacturing method of this embodiment can further reduce the manufacturing cost of the optical product 100 and solve the problem of poor compatibility between the light-resistant material and the body in the blending method, but the present invention is not limited thereto.

It must be noted here that the following embodiments continue to use the component numbers and part of the content of the above-mentioned embodiments, wherein the same or similar numbers are used to indicate the same or similar components, and the description of the same technical content is omitted, and the description of the omitted part Reference can be made to the aforementioned embodiments, and the following embodiments will not be repeated.

FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 and FIG. 8 are schematic cross-sectional views of optical products according to some embodiments of the present invention.

Please refer to FIG. 4, the difference between the optical product 200 of this embodiment and the optical product 100 in the preceding embodiments is that the light-resistant layer 220 of the optical product 200 of this embodiment is formed in the body 110, in other words, the light-resistant layer 220 has a distance from the edge 110 e of the body 110 , so the anti-light layer 220 can be sandwiched in the body 110 , for example. In addition, in this embodiment, the anti-light layer 220 may be located only in the central area of the body 110, but the invention is not limited thereto. Here, the anti-light layer 220 may be formed in the body 110 in a suitable manner during the process of forming the body 110 .

Please refer to FIG. 5 , the difference between the optical product 300 of this embodiment and the optical product 100 in the foregoing embodiments is that the body 310 of the optical product 300 of this embodiment is not in the shape of a curved lens, and can have other shapes according to the application of the optical product. Appropriate shape, and the anti-light layer 320 can be formed on the central area of the body 310, for example, the optical product 300 of this embodiment can be a lens or a screen protector applied to a non-curved surface, but the present invention is not limited thereto.

Please refer to FIG. 6 , the difference between the optical product 400 of this embodiment and the optical product 300 in the previous embodiments is that the light-resistant layer 420 of the optical product 400 is formed in the body 310, in other words, the light-resistant layer 420 can be, for example, clamped in the body 310 . In addition, in this embodiment, the anti-light layer 420 may be located only in the central area of the body 310, but the invention is not limited thereto.

Please refer to FIG. 7 , the difference between the optical product 500 of this embodiment and the optical product 300 in the preceding embodiments is that the light-resistant layer 520 of the optical product 500 is formed on the entire area of the surface of the body 310 , for example, the light-resistant layer 520 It may be formed by extending from one end of the surface of the body 310 to the other end, but the present invention is not limited thereto.

Please refer to FIG. 8 , the difference between the optical product 600 of this embodiment and the optical product 500 in the preceding embodiments is that the light-resistant layer 620 of the optical product 600 of this embodiment is formed in the entire area of the body 310 , for example, The anti-light layer 620 may extend from one end of the surface of the body 310 to the other end, but the invention is not limited thereto.

It should be noted that the above-mentioned various forms of optical products can be matched in an appropriate manner. For example, the aspects shown in FIG. 7 and FIG. 8 can also be applied to curved lenses, as long as the optical products include The light-resistant layer formed by the light-resistant material modified on the surface of titanium dioxide all belongs to the protection scope of the present invention.

In summary, the optical material of the present invention introduces titanium dioxide with anti-ultraviolet light effect, and the surface modification can increase the bonding ability between the optical material and the surface of the body, so that the adhesion between the optical material and the body can be improved Therefore, the optical products made of the above-mentioned optical materials can effectively resist the ultraviolet light wavelength band (280nm to 380nm), thereby reducing the damage caused by ultraviolet light to the eyes. damage and improve the protection ability of the eyes.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be defined by the scope of the appended patent application.

10: Lighting device 100, 200, 300, 400: optical products 110: Ontology 110e: edge 120, 220, 320, 420: anti-light layer S: solution S100, S200: Steps

FIG. 1A is a schematic top view of an optical product according to an embodiment of the present invention. FIG. 1B is a schematic cross-sectional view of an optical product according to an embodiment of the invention. FIG. 1C is a graph showing the relationship between transmittance and wavelength of an optical product according to an embodiment of the present invention. FIG. 2 is a flowchart of an optical product according to an embodiment of the present invention. 3A to 3B are schematic diagrams of a manufacturing method of an optical product according to an embodiment of the present invention. FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 and FIG. 8 are schematic cross-sectional views of optical products according to some embodiments of the present invention. It should be noted that, for the sake of clarity, the components in FIGS. 1A , 1B and 3A, 3B, 4 , 5 , 6 , 7 and 8 are not drawn according to the actual scale.

100: Optical products

110: Ontology

120: Anti-light layer

Claims (9)

An optical material for making optical products, comprising: a light-resistant material modified by titanium dioxide surface, and the light-resistant material is grafted on another light-resistant material, so that the optical product at least resists Light with a wavelength between 280 nm and 500 nm. An optical product, comprising: a body; and a light-resistant layer formed on the body, wherein the light-resistant layer is formed by a light-resistant material modified on the surface of titanium dioxide, and the light-resistant material is grafted on Another anti-light material is formed to make the optical product resist at least light with a wavelength between 280 nm and 500 nm. The optical product according to claim 2, wherein the body and the light-resistant layer are bonded by an ethylenic functional group. The optical product as claimed in claim 3, wherein the ethylenic functional group comprises an acrylic group. The optical product according to claim 2, wherein the optical product has a transmittance of 0.1% to 50% for light having a wavelength of 280 nm to 380 nm. The optical product as claimed in claim 2, wherein the optical product has a transmittance of less than 70% for light having a wavelength between 380 nm and 500 nm. The optical product according to claim 2, wherein the light-resistant layer is formed on the surface of the main body. The optical product according to claim 2, wherein the light-resistant layer is formed in the body. A method for manufacturing an optical product, comprising: providing a body; and forming a light-resistant layer on the body, wherein the light-resistant layer is formed by a light-resistant material modified by titanium dioxide surface, and the light-resistant material The grafting is formed on another light-resistant material, so that the optical product resists at least light with a wavelength between 280 nm and 500 nm.

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