TWI750731B - Light-absorbing white lens - Google Patents

Abstract

The present invention relates a light-absorbing white lens, which primarily discloses the technology of a metal absorbing layer, a first refraction layer, a second refraction layer, and a color rendering layer formed on a white lens. Utilizing the metal absorbing layer absorbs the outer light source for reducing the transmittance of the white lens, and with the combination of the first refraction layer or the second refraction layer, to further provide the effect of color changing and light refracting. The white lens with cozy, manufacturing cost-saving and simple layer structure can be provided in the present invention thereby.

Description

light absorbing white lens

The present invention relates to the technical field of lenses, in particular to a white lens with light absorbing function to provide proper transmittance.

Press, when the user wears glasses or the like, if the external sunlight in the morning is too strong, or the car light in the evening is too strong, if it is directly or indirectly irradiated on the glasses lenses, it will make the user wear Those who can't open the glasses, what's more, it will cause damage to the eyes.

Therefore, most of today's spectacle lenses (such as general optical glasses) and the like (such as safety spectacle lenses for factory operations or windshield lenses on safety helmets) are made of plastic injection molding, and use The color tone of the lens is adjusted by means of dyes to facilitate the lens to absorb light, and is arranged on the surface of the lens through the relevant laminated structure, so that by repeatedly stacking the laminated structure, the transmittance of the lens itself can be adjusted, thereby reducing the external appearance. Transmittance of light.

Due to the lenses disclosed in the prior art, tinted lenses (such as gray lenses, brown lenses, gray-brown lenses, etc.) must be passed through instead of white lenses (ie, completely transparent lenses) to adjust the transmittance of the lens itself.

Therefore, in the prior art, the set lens transmittance can only be achieved through the dyeing process and then through the stacking of various laminated structures, which not only greatly increases the manufacturing process and cost, but also And the structure of the lens itself is more complicated.

Therefore, there is an urgent need in the current technology for a lens that can reduce the manufacturing process and cost, and can provide a comfortable and simple structure, thereby improving the problems existing in the prior art.

The object of the present invention is to provide a light absorbing white lens, which mainly uses a metal absorbing layer to be arranged on the white lens (ie, undyed transparent lens), and after combining with a first refractive layer, it can provide a comfortable, White lens with low manufacturing cost and simple lamination structure.

In order to achieve the above-mentioned purpose, the present invention provides a light-absorbing white lens, comprising: a white lens, which is arranged to output a light source; a metal absorbing layer, which is formed on a surface of the white lens, the metal The absorption layer receives and absorbs part of the light source, the metal absorption layer outputs the light source to the white lens; a first refractive layer is formed on the metal absorption layer, the first refractive layer receives the light source, and the An interface in the first refracting layer reflects part of the light source and outputs the light source to the metal absorption layer; a second refracting layer is formed on the first refracting layer, the second refracting layer receives the light source, and output the light source to the first refractive layer; and a color rendering layer formed on the second refractive layer, the color rendering layer receives the light source input from the outside, and outputs the light source to the second on the refractive layer.

Preferably, the light absorbing white lens further comprises: an adhesive layer formed between the white lens and the metal absorbing layer, and the adhesive layer increases the adhesion strength between the metal absorbing layer and the white lens , wherein the adhesive layer receives the light source from the metal absorbing layer, and outputs the light source to the white lens.

Preferably, the adhesion layer comprises one of silicon oxide, silicon dioxide, magnesium fluoride or a combination of any two or more thereof.

Preferably, the thickness of the adhesion layer is comprised between 10 and 30 nm.

Preferably, the metal absorption layer comprises one of chromium, chromium trioxide, titanium, copper, or a combination of any two or more thereof.

Preferably, the first refractive layer or the color developing layer comprises one of silicon oxide, silicon dioxide, magnesium fluoride or a combination of any two or more thereof.

Preferably, the second refractive layer comprises titanium pentoxide, titanium oxide, tantalum pentoxide, titanium dioxide or a combination of any two or more thereof.

Preferably, the thickness of the metal absorption layer is comprised between 15 and 70 nm.

Preferably, the thickness of the first refracting layer, the second refracting layer or the color rendering layer is between 50 and 250 nm.

Preferably, the refractive index of the first refractive layer is lower than the refractive index of the second refractive layer.

In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the specific embodiments listed in the drawings.

10: white lens

20: Metal Absorber Layer

30: The first refraction layer

40: Second refractive layer

50: color layer

60: Adhesion Layer

L: light source

FIG. 1 is a schematic diagram of the structure of the present invention; FIG. 2 is a schematic diagram of the use of the light source irradiation of the present invention; and FIG. 3 is a perspective spectrum diagram of the present invention.

Additionally, the terms "comprising" and/or "comprising" refer to the presence of stated features, regions, integers, steps, operations, elements and/or components, but do not exclude one or more other features, regions, integers, steps, operations , elements, components and/or the presence or addition of combinations thereof.

For the convenience of your reviewers to understand the content of the present invention and the effects that can be achieved, hereby describe in detail the following in conjunction with the specific embodiments enumerated in the drawings:

Please refer to FIG. 1 and FIG. 2 , which are a schematic diagram of the structure of the present invention and a schematic diagram of the use of light source illumination. As shown in the figure, the present invention is mainly composed of a white lens 10 , a metal absorption layer 20 , a first refractive layer 30 , a second refractive layer 40 and a color rendering layer 50 disposed on the white lens 10 . The white lens 10 mainly refers to a lens that has not been subjected to a dyeing process, so that the white lens 10 forms a transparent lens with transparent colorless.

The metal absorption layer 20 is disposed on the white lens 10, wherein the material of the metal absorption layer 20 includes metal light absorption materials such as chromium, chromium oxide, titanium, copper, or a combination of any two or more of them. Since the thickness of the metal absorbing layer 20 affects the transmittance of the light absorbing white lens, the thickness of the metal absorbing layer 20 should preferably be set between 15 and 70 nm. When the light source L passes through the metal absorbing layer 20 , it can absorb the characteristics of the light source through the metal absorbing layer 20 , so as to reduce the transmittance of the light source.

The first refractive layer 30 is formed on the metal absorption layer 20 , wherein the material of the first refractive layer 30 includes one of silicon oxide, silicon dioxide, magnesium fluoride or any two of them. Combining the above, and the thickness of the first refractive layer 30 is between 50 and 250 nm, when the first refractive layer 30 is disposed on the metal absorption layer 20, the white lens 10 can have The color change enables the white lens 10 to change its own color according to the user's expectation.

The second refraction layer 40 is formed on the first refraction layer 30, wherein the material of the second refraction layer 40 includes one of titanium pentoxide, titanium oxide, tantalum pentoxide, titanium dioxide or The combination of any two or more, and the thickness of the second refractive layer 40 is comprised between 50 and 250 nm, and the refractive index of the first refractive layer 30 is lower than the refractive index of the second refractive layer 40 Rate. In this way, when the second refraction layer 40 is disposed on the first refraction layer 30, since the light source L is The second refracting layer 40 is incident on the first refracting layer 30 with a lower refractive index, so that when the light source passes through two media with different refractive indices, part of the light source will be refracted at the interface of the media, and the rest will be reflected. The phenomenon of total internal reflection is formed. In this way, through the cooperation between the metal absorption layer 20 and the second refractive layer 40, the second refractive layer 40 can provide part of the light source reflection, and the metal absorption layer 20 can be used again. The light source refracted from the first refractive layer 30 is received, thereby effectively reducing the transmittance of the white lens 10 itself (as shown in FIG. 2 ).

The color developing layer 50 is formed on the second refracting layer 40, wherein the material of the color developing layer 50 includes one of silicon oxide, silicon dioxide, magnesium fluoride or a combination of any two or more thereof , and the thickness of the color rendering layer 50 can be included between 50 and 250 nm. When the color rendering layer 50 is disposed on the first refractive layer 30, the color rendering layer 50 can further allow the white The color change of the lens 10 is more obvious, thereby enhancing the color change of the white lens 10 .

In addition, in order to enhance the adhesion strength of the structure provided on the white lens 10 to the white lens 10, the light absorbing white lens of the present invention is further provided with an adhesive layer 60, and the adhesive layer 60 includes one of them. Silicon oxide, silicon dioxide, magnesium fluoride or a combination of any two or more, and the thickness of the adhesion layer 60 is between 10 and 30 nm, wherein the adhesion layer 60 is formed on the white lens 10 Between the metal absorption layer 20 , the adhesion layer 60 increases the adhesion strength between the metal absorption layer 20 and the white lens 10 .

Please refer to FIG. 3 , which is a transmittance spectrum diagram of the present invention. As shown in the figure, it mainly shows the transmittance spectrum of the prior art dyed lens (such as a gray lens) represented by the dashed line when stacked with a laminated structure such as nine layers, and the solid line represented by the From the comparison of the transmittance spectrum after the test of the light-absorbing white lens of the present invention with the above structure, it can be seen that the prior art is in the lowest wavelength value (380 nm) of visible light (between 380 nm and 780 nm). , adjust the perspective to approximately 50% (47.7192% for the prior art), it is not only necessary to stack the multi-layer structure in order to adjust the transmittance of the prior art, but also greatly wastes the related cost. In terms of transmittance performance, the wavelength of the light source is 500 nanometers. The transmittance of the meter is only 18.152%, and the transmittance at the light source wavelength of 625 nm is as high as 96.972%. In contrast, the light-absorbing white lens of the present invention is at the lowest wavelength of visible light (380 nm). When the transmittance is adjusted to about 50% (specifically 49.3523%), when the light source wavelength is 500 nm, its transmittance can be maintained at 34.453%, and when the light source wavelength is 625 nm, the transmittance is 66.887 %, will not produce too low or too high perspective.

Therefore, the present invention can effectively provide a white lens with a comfortable, cost-saving and simple laminated structure by cooperating with the metal absorbing layer and the second refractive layer, thereby improving the problems existing in the prior art.

The above description is exemplary only, not limiting. Any equivalent modifications or changes that do not depart from the spirit and scope of the present invention shall be included in the appended patent application scope.

10: white lens

20: Metal Absorber Layer

30: The first refraction layer

40: Second refractive layer

50: color layer

60: Adhesion Layer

L: light source

Claims (10)

A light absorbing white lens, comprising: a white lens configured to output a light source; a metal absorbing layer formed on a surface of the white lens, the metal absorbing layer receiving and absorbing part of the light source, the metal absorbing layer The absorption layer outputs the light source to the white lens; a first refracting layer is formed on the metal absorbing layer, the first refracting layer receives the light source, and an interface in the first refracting layer reflects part of the light source , and output the light source to the metal absorption layer; a second refractive layer formed on the first refractive layer, the second refractive layer receives the light source, and outputs the light source to the first refractive layer ; and a color developing layer, which is formed on the second refractive layer, the color developing layer receives the light source input from the outside, and outputs the light source to the second refractive layer. The light-absorbing white lens as claimed in claim 1, further comprising: an adhesion layer formed between the white lens and the metal absorbing layer, the adhesion layer increasing the thickness between the metal absorbing layer and the white lens adhesion strength, wherein the adhesion layer receives the light source from the metal absorption layer and outputs the light source to the white lens. The light-absorbing white lens of claim 2, wherein the adhesive layer comprises one of silicon oxide, silicon dioxide, magnesium fluoride, or a combination of any two or more thereof. The light-absorbing white lens of claim 2, wherein the thickness of the adhesion layer is between 10 and 30 nm. The light absorbing white lens of claim 1, wherein the metal absorbing layer comprises one of chromium, chromium trioxide, titanium, copper, or a combination of any two or more thereof. The light-absorbing white lens of claim 1, wherein the first refraction layer or the color-developing layer is a Including one of silicon oxide, silicon dioxide, magnesium fluoride or a combination of any two or more thereof. The light-absorbing white lens of claim 1, wherein the second refractive layer comprises titanium pentoxide, titanium oxide, tantalum pentoxide, titanium dioxide, or a combination of any two or more thereof. The light absorbing white lens of claim 1, wherein the thickness of the metal absorbing layer is between 15 and 70 nanometers. The light-absorbing white lens of claim 1, wherein the thickness of the first refractive layer, the second refractive layer or the color developing layer is between 50 and 250 nm. The light-absorbing white lens of claim 1, wherein the refractive index of the first refractive layer is lower than the refractive index of the second refractive layer.

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