TW201502600A - Photochromic composite lens - Google Patents

Abstract

The present invention provides a photochromic composite lens which darkens when exposed to light. It includes a penetration layer located exteriorly that allows the penetration of light of short wavelength and high penetrating capability such as UV light. There is an interior layer capable of blocking light of short wavelength such as UV light. There is a transition layer located between the penetration layer and the blocking layer. The thickness of the transition layer can be readily adjusted in view of the field requirements. In addition, functional coatings, such as abrasive-proof coating, fog-free coating, refraction free coating, and other functional coatings can be readily applied to the penetration layer and the blocking layer, respectively. This photochromic composite lens can be easily made of polycarbonate or many other materials. In addition, even if the photochromic composite lens surface suffers damage due to scratches, the function of transmission will not be impaired.

Description

Photochromic composite lens

The invention provides a photochromic composite lens, which is mainly prepared by adopting a composite lens for a photochromic lens, so that the thickness of the color changing layer can be appropriately adjusted according to the need for a PC material lens or the like. The preset material lens is used in the production of photochromic lenses, and even if the finished photochromic lens is scratched, it does not affect the expected photochromic effect, and effectively improves the existing photochromic lens in the production. Some problems, and improve the maneuvering thickness adjustment of the photochromic lens in the production.

According to the existing color-changing lens, it is usually made by "coating film", so that it is not easy to make a color-changing layer of sufficient thickness, and it is easy to produce a case where the color change is not deep enough and the coating film is uneven, even if a hardened coating is applied, it is easy to Problems such as obvious discoloration after being scratched; these problems include: too high concentration of photochromic material or excessive thickness may cause discoloration saturation, resulting in lack of economy, may also affect the speed of discoloration/fading, and large Most photochromic materials rely on ultraviolet light to drive discoloration, and when used in sports/sunglass lenses, a layer of ophthalmic lens material such as a PC with UV blocking function reduces the expected discoloration effect.

At present, the principle of color change of color-changing lenses on the market is divided into two types: 1. Color-changing material: The lens itself is mixed with a special material that can change color, even if scratching does not affect the color-changing effect, the color-changing ability is the most uniform, and the effect is the longest, but the effect is the longest. For example, in the production of vision correction of the meniscus lens, the thickness is not uniform, which causes a problem of different shades of color. At the same time, the PC material is limited by the high processing temperature, which may damage the color-changing material, and therefore cannot be used. 2. Color-changing film: The color-changing effect and durability are improved, but when the color-changing film layer is scratched, scratches are generated and it is impossible to cause discoloration.

The invention is specifically improved according to the existing photochromic lens in the production and use of the missing, in order to make the photochromic lens made by the composite lens. The thickness of the color-changing layer can be adjusted according to the need to be suitable for the application of the lens of PC material or other preset materials in the production of the photochromic lens, and the finished photochromic lens is even scraped in use. The injury does not affect the expected photochromic effect, effectively improves the problems existing in the production of the photochromic lens, and enhances the maneuvering thickness adjustment of the photochromic lens in the production.

The main object of the present invention is to include a photochromic lens comprising: a front lens on the outer layer is a short-wavelength light-transmitting layer such as ultraviolet light having high UV penetration, and a rear lens on the inner layer is a a short-wavelength light blocking layer such as ultraviolet light blocking ultraviolet rays, and a short-wavelength light-blocking layer such as ultraviolet rays such as ultraviolet rays outside the layer and a short-wavelength light blocking layer such as ultraviolet rays in the inner layer are combined with a color-changing layer. The color-changing layer is adjusted to have a suitable thickness, and is externally coupled to the outer side of the short-wavelength light-blocking layer such as ultraviolet rays such as ultraviolet rays and the short-wavelength light-blocking layer such as ultraviolet rays in the layer. Coating (such as: hard wear layer, anti-fog layer, anti-reflection or other functional coating), make the photochromic lens suitable for PC lens or other preset material lens production, and The resulting photochromic lens does not affect the expected photochromic effect even if it is scratched.

A second object of the present invention is to prepare a photochromic lens by placing a short-wavelength light-transmitting layer such as a UV-transmitting ultraviolet light into a predetermined supporting jig, and A short-wavelength light-transmissive layer such as ultraviolet light is introduced into the interior of the layer to introduce a suitable amount of liquid-like color-changing paste, and a short-wavelength light blocking layer such as ultraviolet light blocking UV is extended on both sides of the inward side to extend a rib of a suitable length. The two side ribs of the short-wavelength light blocking layer such as ultraviolet rays are arranged on the corresponding layers of the short-wavelength light-transmitting layer such as ultraviolet rays, so that the liquid-like color-changing paste can be uniformly filled in the short-wavelength light such as ultraviolet rays. Between the layer and the short-wavelength light blocking layer such as ultraviolet light, a color changing layer is formed; after that, the heat-cured or light-cured composition is further cut along the short-wavelength light blocking layer such as ultraviolet rays. The inner position is cut, and the cut composition is subjected to a surface treatment to facilitate the wear of the short-wavelength light-transmitting layer such as ultraviolet rays and the outer side of the short-wavelength light blocking layer such as ultraviolet rays. And composed A photochromic lens for PC lenses or other preset lenses.

A third object of the present invention is to provide a short-wavelength light blocking layer such as ultraviolet light blocking ultraviolet rays between the photochromic lenses and the cross-sectional ribs extending on both sides of the photochromic lens. The thickness of the combined color-changing layer is adjusted for the appropriate length.

The fourth object of the present invention is to make a second method for producing a photochromic lens. To: insert a short-wavelength light-transmitting layer such as a UV-transmitting ultraviolet light into a predetermined supporting fixture, and form a horizontal portion on both sides of the short-wavelength light-transmitting layer such as the ultraviolet light, and in the ultraviolet light A short-wavelength light-transmissive layer is internally introduced with an appropriate amount of liquid-like color-changing paste, and a short-wavelength light-blocking layer such as ultraviolet light blocking UV is placed on the horizontal section extending downward to provide a short-wavelength such as ultraviolet light. The two outer branches of the light blocking layer can abut against the corresponding horizontal portions of the short-wavelength light-transmitting layer such as ultraviolet rays, and form a gap of a predetermined thickness to allow the liquid-like color-changing paste therebetween to be uniformly filled in a short wavelength such as ultraviolet rays. Forming a color changing layer between the light penetrating layer and the short-wavelength light blocking layer such as ultraviolet rays; and then, by heat-curing or curing the cured composition, the composition is cut along a predetermined area by a cutting method, and The cut composition is subjected to a surface treatment to facilitate the short-wavelength light-transmitting layer such as ultraviolet rays and the outer side of the short-wavelength light blocking layer such as ultraviolet rays to be coated with a functional coating (for example, enhanced wear resistance) , Antifogging layers, antireflection coatings, or other functional), and a composition suitable for the photochromic lenses PC lens material or other material of a predetermined lens production.

A fifth object of the present invention is to prepare a method for producing a photochromic lens by placing a short-wavelength light-transmitting layer such as a UV-transmitting ultraviolet light into a predetermined supporting jig. The peripheral part of the jig is provided with a plurality of studs, and an appropriate amount of liquid-like color-changing paste is introduced inside the short-wavelength light-transmitting layer such as ultraviolet rays, and a short-wavelength light blocking layer such as ultraviolet rays blocking UV is further disposed. The hole formed by the predetermined orientation of the horizontal section extending in the periphery corresponds to each of the protrusions of the supporting fixture for azimuth cutting, and forms a gap of a predetermined thickness so that the liquid-like color-changing paste can be uniformly filled in the ultraviolet light or the like. Forming a color changing layer between the short-wavelength light-transmitting layer and the short-wavelength light blocking layer such as ultraviolet rays; after that, the solidified composition is cut along the preset area by cutting, and the cutting is performed The lower composition is subjected to a surface treatment to facilitate the short-wavelength light-transmitting layer such as ultraviolet rays and the outer side of the short-wavelength light blocking layer such as ultraviolet rays to be coated with a functional coating (for example, a wear-resistant layer and an anti-fog layer). Layer, anti-reflection or other work Coating), which consists of a PC material applied in a predetermined lens or other lens material photochromic lens production.

1‧‧‧Short-wavelength light penetration layer such as ultraviolet light

11‧‧‧ horizontal parts

2‧‧‧Short-wavelength light blocking layer such as ultraviolet light

21‧‧ ‧ ribs

22, 24‧‧‧ horizontal paragraph

23‧‧‧ Branch

25‧‧‧ hole

3‧‧‧Color layer

31‧‧‧liquid jelly color paste

4, 5‧‧‧ functional coating

6‧‧‧Photochromic lenses

61‧‧‧Composition

7‧‧‧Support fixture

71‧‧‧Bump

72‧‧‧ 照照

8‧‧‧Sunshine

9‧‧‧ eyes

First Figure: Schematic representation of the implementation of the color-changing lens of the present invention.

Second: Schematic diagram of the production step 1 of an embodiment of the color-changing lens of the present invention.

Fig. 3 is a schematic view showing the production step 2 of an embodiment of the color-changing lens of the present invention.

Fourth: Schematic diagram of the production step 3 of one embodiment of the color-changing lens of the present invention.

Fig. 5 is a schematic view showing the production step 4 of an embodiment of the color-changing lens of the present invention.

Figure 6 is a schematic view showing the production step 5 of an embodiment of the color-changing lens of the present invention.

Figure 7 is a schematic view showing the production step 1 of the second embodiment of the color-changing lens of the present invention.

Figure 8 is a schematic view showing the production step 2 of the second embodiment of the color-changing lens of the present invention.

Ninth view: Schematic diagram of the production step 3 of the second embodiment of the color-changing lens of the present invention.

Fig. 10 is a plan view showing a manufacturing step 1 of the third embodiment of the color-changing lens of the present invention.

Eleventh drawing: Schematic diagram of the production step 1 of the third embodiment of the color changing lens of the present invention.

Twelfth Figure: Schematic diagram of the production step 2 of the three embodiments of the color-changing lens of the present invention.

Thirteenth Diagram: Schematic diagram of the production step 3 of the third embodiment of the color-changing lens of the present invention.

The photochromic composite lens designed by the present invention (as shown in the first figure) is included for the photochromic lens 6: the front lens on the outer layer is a short-wavelength light-transmitting layer such as ultraviolet light with high UV penetration. 1. The rear lens on the inner layer is a short-wavelength light blocking layer 2 such as ultraviolet rays that block UV, and a short-wavelength light such as ultraviolet rays that penetrates the layer 1 and the ultraviolet rays in the layer. Between the short-wavelength light blocking layers 2 is a color changing layer 3, which is adjusted to be suitable for the thickness of the light-changing layer 3, and penetrates the layer 1 and the inner layer in the short-wavelength light such as ultraviolet rays outside the layer. The adjacent outer side of the short-wavelength light blocking layer 2 such as ultraviolet rays is composed of functional coatings 4, 5 (such as a reinforced wear layer, an anti-fog layer, an anti-reflection or other functional coating). The photochromic lens 6 is suitable for the production of a lens made of PC material or other preset material lens, and the resulting photochromic lens 6 does not affect the expected photochromic effect even if it is scratched.

The photochromic lens 6 of the present invention is produced by: placing a short-wavelength light-transmitting layer 1 such as a UV-transmitting ultraviolet light into the predetermined supporting fixture 7 (as shown in the second figure), and An appropriate amount of the liquid-like color-changing paste 31 is introduced into the short-wavelength light-transmitting layer 1 such as ultraviolet rays, and a short-wavelength light blocking layer 2 such as ultraviolet rays blocking UV is extended on both sides of the inward side. The length of the rib 21 is such that the two side ribs 21 of the short-wavelength light blocking layer 2 such as ultraviolet rays are disposed on the corresponding layers of the short-wavelength light transmitting layer 1 such as ultraviolet rays (as shown in the third figure), so that The liquid-like color-changing paste 31 can be uniformly filled between the short-wavelength light-transmitting layer 1 such as ultraviolet rays and the short-wavelength light-blocking layer 2 such as ultraviolet rays to form a color-changing layer 3; after that, the heat-curing layer is cured by cutting. The subsequent composition 61 is cut along the inner side of the short-wavelength ray blocking layer 2 such as ultraviolet rays (such as the fourth and fifth figures), and the cut composition 61 is used as a surface. The outer surface of the short-wavelength light blocking layer 2, such as ultraviolet rays, which is suitable for short-wavelength light transmission layer 1 and ultraviolet rays, is coated with a functional coating (for example, a hard wear layer, an anti-fog layer, an anti-reflection layer or Other functional coatings 4, 5 (as shown in Figure 6), and composed of a photochromic lens 6 suitable for use in PC-based lenses or other predetermined material lenses.

The cross-sectional rib column 21 in which the short-wavelength light blocking layer 2 such as the ultraviolet ray blocking ultraviolet ray having the ultraviolet ray blocking light is extended on both sides toward the inner side is a discoloration which can be combined according to the photochromic lens 6 The thickness of layer 3 is adjusted for proper length.

The second method for fabricating the photochromic lens is to: insert a short-wavelength light-transmitting layer 1 such as a UV-transmitting ultraviolet light into the predetermined supporting fixture 7 (as shown in the seventh figure), On both sides of the short-wavelength light-transmitting layer 1 such as ultraviolet rays, the horizontal portion 11 is formed, and an appropriate amount of the liquid-like color-changing paste 31 is introduced inside the short-wavelength light-transmitting layer 1 such as ultraviolet rays, and ultraviolet rays such as ultraviolet rays are blocked. The short-wavelength light blocking layer 2 has a portion 23 facing downward in the horizontal section 22 extending on both sides, so that the two outer branch portions 23 of the short-wavelength light blocking layer 2 such as ultraviolet rays can abut the short-wavelength light penetrating layer 1 such as ultraviolet rays. The corresponding horizontal portion 11 (as shown in the eighth figure) constitutes a gap of a predetermined thickness to allow the liquid-like color-changing paste 31 therebetween to be uniformly filled in a short-wavelength light-transmitting layer 1 such as ultraviolet rays and a short-wavelength light resistance such as ultraviolet rays. Between the faults 2, a color changing layer 3 is formed; after curing by the light 72 or heat, the composition 61 is cut along the preset area by cutting (such as the ninth figure), and the cutting is performed. Composition 61 is surface treated to facilitate short-wavelength light such as ultraviolet light The outer side of the short-wavelength light blocking layer 2 such as the wire penetrating layer 1 and the ultraviolet rays are respectively coated with functional coatings 4 and 5 (for example, a wear-resistant layer, an anti-fog layer, an anti-reflection or other functional coating). Layer) (as shown in Figure 6), and is made up of a photochromic lens 6 suitable for use in PC material lenses or other preset material lenses.

Another three methods for producing a photochromic lens are: placing a short-wavelength light-transmitting layer 1 such as a UV-transmitting ultraviolet light into a predetermined supporting fixture 7 (as shown in FIG. 11), The peripheral pre-set portion of the supporting jig 7 is provided with a plurality of protrusions 71 (such as the tenth and eleventh figures), and an appropriate amount of liquid-like color-changing paste 31 is introduced inside the short-wavelength light penetrating layer 1 such as ultraviolet rays. Then, the hole 25 formed by the predetermined orientation of the horizontal section 24 extending from the short-wavelength light blocking layer 2 with ultraviolet rays blocking ultraviolet rays is adjacent to each of the pillars 71 of the supporting jig 7 for azimuth cutting (for example, the twelfth The gap between the predetermined thicknesses is such that the liquid-like color-changing paste 31 is uniformly filled between the short-wavelength light-transmitting layer 1 such as ultraviolet rays and the short-wavelength light blocking layer 2 such as ultraviolet rays, and is reused. After the heating and curing is completed, the supporting fixture 7 forms a color changing layer 3; after that, the composition 61 is cut along a predetermined area by a cutting method (such as the thirteenth image), and the composition is cut off. The object 61 is surface-treated to facilitate the short-wavelength light-transmitting layer 1 such as ultraviolet rays and the outer side of the short-wavelength light blocking layer 2 such as ultraviolet rays to be coated with the functional coatings 4 and 5 (for example, the reinforced wear layer) , anti-fog layer, anti-reflection or other functional coating) (as shown in Figure 6), and composed of a photochromic lens 6 suitable for PC material lenses or other preset material lenses.

For the photochromic lens 6 of the present invention (such as the first figure), a short-wavelength light-transmitting layer 1 such as an ultraviolet ray is formed by adopting a UV high-penetration material so that the color-changing layer 3 bonded to the adjacent side can be It is easily driven to change color, and the short-wavelength light blocking layer 2 such as ultraviolet rays on the inner layer is formed by UV blocking material, so that the light and UV contained in the outside sunlight 8 do not reach the eye 9, so as to be surely protected. The short-wavelength light-blocking layer 2 such as ultraviolet light or the like of the short-wavelength light-transmitting layer 1 and the inner layer of the light-transmissive lens 6 is formed by positioning or fitting. The thickness and uniformity of the color changing layer 3, thereby effectively improving the problems existing in the production of the existing photochromic lens, and improving the maneuvering thickness adjustment of the photochromic lens in the production.

1‧‧‧Short-wavelength light penetration layer such as ultraviolet light

2‧‧‧Short-wavelength light blocking layer such as ultraviolet light

3‧‧‧Color layer

4, 5‧‧‧ functional coating

6‧‧‧Photochromic lenses

Claims (19)

A photochromic composite lens comprising: a front lens on the outer layer, a rear lens on the inner layer, a color change layer containing a photochromic dye on the middle layer, and a uniform definition between the front lens and the rear lens The support structure of the thickness space forms a uniform thickness layer when the intermediate color changing material is filled therein; and the functional coating is separately combined on the outer side of the front lens and the inner side of the rear lens. The photochromic composite lens according to claim 1, wherein the front lens has a short-wavelength light-transmitting layer such as ultraviolet light, and the rear lens has a short-wavelength light blocking layer such as ultraviolet light. The photochromic composite lens of claim 1, wherein the support structure is achieved by combining a curved surface of the lens with a matching curved rib of a fixed height relative to the position. The photochromic composite lens of claim 1, wherein the support structure is formed by a combination of an epitaxial plane and a rib fixed height. The photochromic composite lens of claim 1, wherein the support structure is achieved by aligning the lens with the lens after the epitaxial plane. The photochromic composite lens according to claim 1, wherein the color-changing layer has a thickness dimension ranging from 10 to 200 μm. The photochromic composite lens according to claim 1, wherein the color-changing layer has a thickness dimension ranging from 20 to 150 μm. The photochromic composite lens according to claim 1, wherein the color-changing layer has a thickness dimension ranging from 30 to 100 μm. The photochromic composite lens according to claim 1, wherein the front and rear lenses are respectively made of plastic materials such as polycarbonate (Polycarbonate, PC), polymethylmethacrylic (PMMA), and Ethylene glycol diallyl carbonate (MasterCastl or MasterrCast 2, CR-39), allyl diglycol carbonate resin, polyethylene terephathalate (PET), One of polyvinyl alcohol (PVA), nylon (Nylon), and cycloolefin polymer. The photochromic composite lens according to claim 1, wherein the discoloration layer material is a polymer material selected from the group consisting of polyurethane-base and polyurea. Polyurea urethane-base, polymethacrylic acid Poly(meth)acrylic-base, aminoplast, epoxy-base, ethyleneglycol bismethacrylate polymer, diethyl ether phenolic double Epoxylated phenol bismethactrlate polymer, urethane acrylate polymer, polythiourethane polymer, cellulose acetate butyrate, CAB ), styrene polymer or copolymerized (styrene-methyl methacrylate) polymer [copoly (styrene-methyl methacrylate) polymer]. The photochromic composite lens according to claim 1, wherein the color changing layer material is selected from the group consisting of naphthopyran, spiropyran, spirooxazine, A series of chromene, fulgide, azobenzene, salicylidene aniline, and the like. The photochromic composite lens of claim 1, wherein the functional coating combined on the predetermined surface of the front lens and the rear lens comprises surface hardening, anti-fog, and anti-reflection. The invention relates to a method for manufacturing a photochromic composite lens, comprising: forming a lens with a short-wavelength light passing through a layer such as ultraviolet light having high UV penetration; forming a lens after a short-wavelength light-transmitting layer such as UV-blocking ultraviolet light; While forming the front and rear lenses, the integrally formed tool can define a support structure with a uniform thickness space when the front and rear lenses are combined, and the color changing material can be filled into the gap to form a color layer having a uniform thickness; the front lens is concavely facing Upper, fixed on the jig, and then dropped into the quantitative color changing layer material; the rear lens is convexly facing downward, and the front lens is integrated into the front lens, so that the color changing material is filled in the uniform thickness gap of the front and rear lens supports; The color changing layer material; the finished photochromic composite lens is removed from the jig. The method for producing a photochromic composite lens according to claim 13, wherein the jig can be in a hollow or non-hollow form. The method for producing a photochromic composite lens according to claim 13, wherein the method of curing the color changing material is heat curing and radiation energy curing. The method for producing a photochromic composite lens according to claim 15, wherein the radiant energy curing is UV curing. The method for manufacturing a photochromic composite lens according to claim 16, wherein the direction of the UV curing light source is in front of the front lens, and after the light source penetrates the front lens, the color changing layer material is cured. The method for manufacturing a photochromic composite lens according to claim 13, wherein the alignment of the front and rear lenses can be achieved by machine alignment or front and rear lens positioning. The method for manufacturing a photochromic composite lens according to claim 13, wherein the functional coating or the coating layer is respectively added to the outer side of the front and rear lenses of the photochromic composite lens.