CN110716325A

CN110716325A - Preparation method of blue-light-proof lens with color fidelity

Info

Publication number: CN110716325A
Application number: CN201910829646.3A
Authority: CN
Inventors: 简志仰; 罗强; 其他发明人请求不公开姓名
Original assignee: XINGHUI OPTICS (XIAMEN) CO Ltd
Current assignee: XINGHUI OPTICS (XIAMEN) CO Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-01-21

Abstract

The invention relates to a preparation method of a blue-light-proof lens with color fidelity, which comprises the following steps: (1) weighing the following raw materials in parts by weight: 3000 portions of base material 1000-; (2) uniformly mixing the raw materials; (3) and (3) performing thermoplastic molding on the mixed material obtained in the step (2) to obtain a finished product. The product of the invention effectively filters blue light, and the color coordinate of the transmission spectrum in the visible light wave band of 400nm-760nm is close to the color coordinate value of the central white point, so that the blue light prevention lens has the effect of color fidelity.

Description

Preparation method of blue-light-proof lens with color fidelity

Technical Field

The invention relates to the field of protective lenses, in particular to a preparation method of a blue-light-proof lens which has a blue-light-proof function and can realize color fidelity.

Background

Blue light is a part of natural visible light, and both sunlight and electronic screens emit blue light. Blue light is an important component of visible light, natural world does not have independent white light, and the blue light, green light and red light are mixed to form white light. The green light and the red light have small energy, small stimulation to eyes, short blue light wave and high energy, and can directly penetrate through crystalline lens to directly reach the macular area of the eyes, thereby causing macular degeneration.

With the common application of 3C products, the lower head family is more and more, the blue light of the 3C products can cause serious harm to eyes of people, and people suffering from eye diseases such as macula lutea and degeneration are more and more, so that the prevention of blue light injury becomes a consensus of people.

Prevent that blue light glasses can effectively reduce the lasting injury of blue light to eyes, through portable spectral analysis appearance contrast detection, use and prevent behind the blue light glasses, the blue light intensity that the cell-phone screen sent has obtained effective suppression, has reduced the injury of harmful blue light to eyes.

However, in the commercially available blue-light-proof glasses, harmful blue light is filtered in a blue light region with a short wavelength, and according to the complementary color principle, the lenses are slightly yellow visually, and an image displayed through the blue-light lenses is often yellow, which has a great adverse effect on the visual effect of the image, for example: the white pattern can become faint yellow or yellow after penetrating through the blue-light-proof lens, thereby influencing the visual experience and being unfriendly to a family driving.

Disclosure of Invention

In order to solve the technical problems, the invention provides a preparation method of a blue-light-proof lens with color fidelity.

The specific scheme is as follows:

the invention provides a preparation method of a blue-light-proof lens with color fidelity, which comprises the following steps:

(1) weighing the following raw materials in parts by weight: 3000 portions of base material 1000-;

(2) uniformly mixing the raw materials;

(3) and (3) performing thermoplastic molding on the mixed material obtained in the step (2) to obtain a finished product.

Further, the thermoplastic molding in the step (3) is thermoplastic molding by using an extruder.

Further, the extruder is a phi 40 extruder.

Further, the thermoplastic molding process comprises the following steps:

(1) preheating a screw of an extruder, and starting cold water circulation: setting the oil temperature to be 37.9 ℃ and the running time to be 37.8 s;

(2) feeding, setting a plasticizing temperature of 265-290 ℃;

(3) injection molding: run time 4.57 s.

Further, the weight parts of the raw materials are as follows: 2000 parts of base material, 0.26 part of yellow toner, 0.132 part of orange toner, 0.083 part of red toner and 0.249 part of purple toner.

Further, the yellow toner is a meta-and chemical yellow 3G toner.

Further, the orange toner is meta-and chemical 8150 toner.

Further, the red toner is meta-and chemical 8315 toner.

Further, the purple toner is a toner of Sutaib 202.

Further, the substrate is a polycarbonate substrate;

the light transmittance of the polycarbonate substrate reaches more than 90%.

Has the advantages that:

the product prepared by the invention effectively filters blue light, and the color coordinate of the transmission spectrum in the visible light wave band of 400nm-760nm is close to the color coordinate value of the central white point, so that the blue light prevention lens has the effect of color fidelity.

Drawings

FIG. 1 shows the transmittance of blue light in each wavelength for the blue-blocking lens of example 2, wherein the X-axis is the wavelength and the Y-axis is the transmittance;

fig. 2 shows the color coordinates of the blue-blocking lens of example 2.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and the examples of the embodiments are intended to explain the present invention and are not to be construed as limiting the present invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.

Example 1:

TABLE 1 EXAMPLES 1-3 raw material weight component tables (unit: parts) of color fidelity blue blocking lenses

	Example 1	Example 2	Example 3
				Base material	1000	2000	3000
Yellow toner	0.15	0.26	0.45
				Orange toner	0.05	0.132	0.3
Red toner	0.01	0.083	0.1
				Purple toner	0.2	0.249	0.4

The raw materials are weighed according to the weight components in the table 1, and are uniformly mixed and subjected to thermoplastic molding by an extruder to obtain the blue-light-proof lens with the color fidelity of the embodiment 1-3.

The raw materials of the invention are preferably as follows: the yellow toner is primary and chemical yellow 3G toner, the orange toner is primary and chemical 8150 toner, the red toner is primary and chemical 8315 toner, the purple toner is addex B202 toner, the base material is a polycarbonate base material, and the light transmittance of the polycarbonate base material reaches more than 90%.

In addition, the extruder adopted by the invention is a phi 40 extruder, namely an extruder with a screw diameter of 40mm, and the thermoplastic molding process comprises the following steps:

(2) feeding, and setting a plasticizing temperature of 265 ℃;

(3) injection molding: run time 4.57 s.

Example 2:

example 2 was prepared similarly to example 1 except that example 2 had a plasticizing temperature of 280 ℃.

Example 3:

example 3 was prepared similarly to example 1 except that example 3 had a plasticizing temperature of 290 ℃.

In the finished product prepared by the invention, the optical center thickness of the blue light prevention lens in the embodiment 1 is 1.5mm, the optical center thickness of the blue light prevention lens in the embodiment 2 is 2.0mm, and the optical center thickness of the blue light prevention lens in the embodiment 3 is 2.5 mm.

And (3) performance testing: the performance tests were performed on the blue-blocking lenses prepared in examples 1-3.

Performance test standard:

according to the standards of various countries/regions for sunglasses: the blue-light-proof lens prepared by the invention is subjected to the following performance tests in China industry standard QB 2457-1999, European Standard ENISO 12312-1:2013 (A1: 2015), Australia Standard AS/NZS 1067:2003 (A1: 2009) and Australia Standard AS/NZS 1067.1:2016, wherein the test standards are shown in Table 2:

TABLE 2 Sunglasses Performance Standard List

Results of performance testing of blue-blocking lenses prepared in examples 1-3:

1. corresponding visual attenuation coefficient of signal lamp identification

The corresponding visual attenuation coefficients recognized by the signal lamp of the invention are as follows: q, Red (Red light) is larger than or equal to 2.25, Q, Yellow (Yellow light) is larger than or equal to 0.79, Q, Green (Green light) is larger than or equal to 0.98, Q, Blue (Blue light) is larger than or equal to 0.70, and the standard of various countries for the sunglasses is met.

2. Referring to fig. 1, the light transmittance of each wavelength of the blue-light-proof lens in example 2 is:

the transmittance of the red light wave band of 620nm-760nm is 70.158%

The transmittance in the orange band of 592-620 nm is 12.57075%

The transmittance of the yellow light wave band of 578-592 nm is 8.9585%

The transmittance of the material in the green light wave band of 500nm-578nm is 10.27011%

The transmittance of the blue light wave band of 464nm-500nm is 9.7716%

The transmittance in the blue light wave band of 446nm-464nm is 4.874%

The transmittance in the purple light wave band of 400nm-446nm is 1.75%.

3. Referring to fig. 2, the overall transmission spectrum of the blue blocking lens of example 2 has color coordinates (0.419, 0.395).

The color coordinates of the central white point of D65 are (0.333 ), the color coordinates of the transmission spectrum of the product in the visible light wave band of 400nm-760nm are close to the color coordinates of the central white point, and the test results show that the blue light prevention lens has the effect of color fidelity.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A preparation method of a blue light prevention lens with color fidelity is characterized by comprising the following steps:

(2) uniformly mixing the raw materials;

2. The method for preparing a blue-light blocking lens with color fidelity according to claim 1, wherein the thermoplastic molding in step (3) is thermoplastic molding by an extruder.

3. The method of claim 2, wherein the extruder is a Φ 40 extruder.

4. The method of manufacturing a color-preserving blue-blocking lens according to claim 2, wherein the thermoforming process is:

(2) feeding, setting a plasticizing temperature of 265-290 ℃;

(3) injection molding: run time 4.57 s.

5. The method for preparing the blue-light-proof lens with the fidelity color as claimed in claim 1, wherein the weight parts of the raw materials are as follows: 2000 parts of base material, 0.26 part of yellow toner, 0.132 part of orange toner, 0.083 part of red toner and 0.249 part of purple toner.

6. The method of making a color-preserving blue-blocking lens according to claim 1, wherein the yellow toner is a meta-and chemical yellow 3G toner.

7. The method of making a blue-blocking lens for color fidelity of claim 1, wherein the orange toner is meta-and chemical 8150 toner.

8. The method of claim 1, wherein the red toner is meta-and chemical 8315 toner.

9. The method of claim 1, wherein the purple toner is a toner plus terab 202 toner.

10. The method of claim 1, wherein the substrate is a polycarbonate substrate;

the light transmittance of the polycarbonate substrate reaches more than 90%.