CN216411775U

CN216411775U - Anti-infrared lens

Info

Publication number: CN216411775U
Application number: CN202121779244.6U
Authority: CN
Inventors: 周杨
Original assignee: Xiamen Tanuo Optical Technology Co ltd
Current assignee: Xiamen Tanuo Optical Technology Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-04-29
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to the technical field of lens structures, in particular to an anti-infrared lens, which comprises a base layer, an infrared absorption layer, a near infrared absorption layer and a strengthening layer which are sequentially stacked; the infrared absorption layer is located between basic unit and the strengthening layer, utilize basic unit and strengthening layer to play the guard action on infrared absorption layer on the one hand, the strengthening layer makes the lens surface have anti fingerprint, add hard, antifog and antistatic function, on the other hand, infrared absorption layer and near infrared absorption layer make when light passes the lens, the infrared ray is fully absorbed, especially can fully absorb to the big near infrared ray of people's eye injury, can play the effect of eyeshield, avoid people's eye to receive infrared long-term irradiation and arouse occupational crystal pathological change, produce cataract or other eye pathological changes.

Description

Anti-infrared lens

Technical Field

The utility model relates to the technical field of lens structures, in particular to an anti-infrared lens.

Background

The infrared ray is invisible electromagnetic wave with the wavelength of 700 nm-1000 mm. The near infrared is generally defined as light within a wavelength range of 780-3000 nm, and conventionally, the near infrared region is divided into two regions, namely a near infrared short wave (780-1100 nm) and a near infrared long wave (1100-2526 nm). Thermal radiation from various heaters is a major source of infrared light. The direct irradiation of the eyes with near infrared short wave for a long time can make the lens turbid, and cause occupational lens pathological changes, also known as cataract. People need to protect eyes under special working environments, such as electric welding, steel making, scientific experiments and the like, so as to prevent the occurrence of impaired vision, eye diseases and the like.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a lens which can reduce the damage of infrared rays, particularly near infrared rays, received by human eyes for a long time.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

an anti-infrared lens comprises a base layer, an infrared absorption layer, a near infrared absorption layer and a strengthening layer which are sequentially stacked.

The lens can be a spectacle lens, a mask or goggles used for steel making and electric welding, or lenses of other optical instruments.

Furthermore, a hydrophobic oil-thinning layer is arranged on one surface of the strengthening layer, which is far away from the near infrared ray absorption layer.

Furthermore, the thickness of the infrared absorption layer is 0.5-2.0 mm.

Furthermore, the thickness of the near infrared ray absorption layer is 0.5-2.0 mm.

Furthermore, the thickness of the base layer is 1.0-10.0 mm.

Furthermore, the thickness of the strengthening layer is 1.0-10.0 μm.

Further, the lens is a spectacle lens.

After the scheme is adopted, the utility model has the beneficial effects that:

the lens is formed by sequentially laminating a base layer, an infrared absorption layer, a near infrared absorption layer and a strengthening layer, the infrared absorption layer is positioned between the base layer and the strengthening layer, on one hand, the base layer and the strengthening layer are utilized to play a role in protecting the infrared absorption layer, and the strengthening layer enables the surface of the lens to have fingerprint resistance, hardening resistance, antifogging resistance and antistatic functions;

and as a preferred scheme, a hydrophobic and oil-repellent layer is arranged between the strengthening layer and the second absorption layer, so that the surface of the lens has the effects of water resistance and oil resistance.

Drawings

Fig. 1 is a schematic structural view of an infrared-shielding eyeglass lens according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of an infrared-shielding eyeglass lens according to embodiment 4 of the present invention;

FIG. 3 is a light transmittance spectrum of an infrared shielding eyeglass lens according to example 1 of the present invention;

FIG. 4 is a light transmittance spectrum of an infrared shielding eyeglass lens according to example 2 of the present invention;

description of reference numerals:

1. a base layer; 2. an infrared absorbing layer; 3. a near infrared ray absorbing layer; 4. a strengthening layer; 5. hydrophobic and oil-phobic layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. 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.

Fig. 1 and 2 are schematic views, and the specific thickness is subject to the content described in the specification.

The utility model is characterized in that the position relation among the layers and the material selection of each layer are adopted, on one hand, the base layer and the strengthening layer are utilized to play a role in protecting the infrared absorption layer, and the strengthening layer enables the surface of the lens to have fingerprint resistance, hardening resistance, antifogging resistance and antistatic function;

preferably, the infrared absorbent in the infrared absorbing layer is a product with the model number of IR Abosrber2052A produced by Germany Langsheng company, the near infrared absorbent in the near infrared absorbing layer is a product with the model number of IR Abosrber2052B produced by Germany Langsheng company, the infrared absorbing range of the IR Abosrber2052A is large, the absorbing range of the IR Abosrber2052B for infrared is small, and the absorption effect mainly for near infrared rays is that the absorption rate of the IR Abosrber2052B for near infrared rays is higher than that of the IR Abosrber2052A, so that the combination of the two infrared absorbents can not only absorb infrared rays comprehensively, but also ensure that the near infrared rays with large damage to human eyes can be absorbed fully;

the infrared absorbing layer or near infrared absorbing layer according to the present invention is a product obtained by conventional technical means of those skilled in the art, and is not a point of improvement of the present invention, that is, it is obtained by adding a corresponding infrared absorbing agent or near infrared absorbing agent to a base material (polyamide or polycarbonate), which is common knowledge in the art, and therefore, the infrared absorbing layer or near infrared absorbing layer itself is a prior material, and the following patents can be referred to: CN101652700B, CN107849207A, and CN112639584A, the present invention does not aim at the improvement of the material itself, but selects from the existing materials, and achieves the above effects through reasonable distribution among layers.

Example 1:

referring to fig. 1, an anti-infrared eyeglass lens is formed by sequentially stacking a base layer 1, an infrared absorption layer 2, a near infrared absorption layer 3 and a reinforcement layer 4;

the material of the infrared absorption layer 2 is polyamide with an infrared absorbent, the material of the near infrared absorption layer 3 is polyamide with a near infrared absorbent, the ratio of the polyamide to the infrared absorbent in the infrared absorption layer is 1000: 3, and the ratio of the polyamide to the near infrared absorbent in the near infrared absorption layer is 1000: 9;

the infrared ray absorbent is a product with the model number of IR Abosrber2052A produced by Germany Langcheng, and the near infrared ray absorbent is a product with the model number of IR Abosrber2052B produced by Germany Langcheng.

The base layer 1 is made of polyamide;

the base material of the strengthening layer 4 is polyamide, and the strengthening agent is strengthening liquid which is produced by Xiamen Yixin Industrial and trade company and has the model number of PC 6300;

the thickness of the base layer 1 is 1.5mm, the thickness of the infrared absorption layer 2 is 0.5mm, the thickness of the near infrared absorption layer 3 is 0.5mm, and the thickness of the reinforcing layer 5 is 2.0 μm.

Referring to fig. 3, fig. 3 is a light transmittance spectrum diagram of the infrared shielding spectacle lens of example 1, wherein the abscissa represents wavelength (nm) and the ordinate represents transmittance (%), and it is shown that the transmittance of the infrared shielding spectacle lens is significantly reduced at a wavelength of 780 to 2000nm, particularly 1600 to 1700nm, which proves that the infrared shielding spectacle lens structure of example 1 can effectively absorb near infrared rays, including short wavelength of near infrared rays and long wavelength of near infrared rays, and particularly has an excellent absorption effect on long wavelength of near infrared rays.

Example 2:

the ir blocking spectacle lens according to example 1, wherein the base layer 1 is made of polycarbonate, the ir absorbing layer 2 is made of polycarbonate having an ir absorbent, the nir absorbing layer 3 is made of polycarbonate having an ir absorbent, the ratio of polycarbonate to ir absorbent in the ir absorbing layer is 1000: 3, and the ratio of polycarbonate to ir absorbent in the nir absorbing layer is 1000: 9; the base material of the strengthening layer 4 is polycarbonate, and the strengthening agent is strengthening liquid which is produced by Xiamen Yixin Industrial and trade company and has the model number of PC 5600.

Referring to fig. 4, fig. 4 is a light transmittance spectrum diagram of the infrared shielding spectacle lens of example 1, wherein the abscissa represents wavelength (nm) and the ordinate represents transmittance (%), and it is shown that the transmittance of the infrared shielding spectacle lens is significantly reduced at a wavelength of 780 to 2000nm, particularly 1600 to 1700nm, which proves that the infrared shielding spectacle lens structure of example 1 can effectively absorb near infrared rays, including short wavelength of near infrared rays and long wavelength of near infrared rays, and particularly has an excellent absorption effect on long wavelength of near infrared rays.

Example 3:

in the infrared shielding eyeglass lens according to embodiment 1 or embodiment 2, toner is added to one or both of the infrared absorbing layer 2 and the near infrared absorbing layer 3 as needed to make the lens have a uniform color, or the lens is colored to a gradient color by coloring through one or both of the infrared absorbing layer 2 and the near infrared absorbing layer 3, so that the lens has a certain color under the reflection of light, and has aesthetic properties, and the toner or coloring does not affect the infrared absorption rate and only plays a role of aesthetic properties, so the infrared shielding eyeglass lens according to embodiment 3 has the same or similar infrared absorption effect as embodiment 1 or embodiment 2.

Example 4:

referring to fig. 2, in the anti-infrared eyeglass lens according to embodiment 1, except that a hydrophobic oil-phobic layer 5 is disposed on a surface of the strengthening layer 4 away from the near-infrared absorption layer, so that the surface of the lens has waterproof and anti-oil effects, and the hydrophobic oil-phobic layer only has the anti-oil effect and does not affect the infrared absorption rate, so that the anti-infrared eyeglass lens according to embodiment 4 has the same or similar infrared absorption effect as embodiment 1.

Example 5:

the infrared shielding eyeglass lens of embodiment 1, except that the thickness of the base layer 1 is 1.0mm, the thickness of the infrared absorption layer 2 is 0.5mm, the thickness of the near infrared absorption layer 3 is 0.5mm, and the thickness of the reinforcement layer 5 is 1.0 μm.

Example 6:

the ir blocking eyeglass lens according to embodiment 1, except that the thickness of the base layer 1 is 10.0mm, the thickness of the ir absorbing layer 2 is 2.0mm, the thickness of the near ir absorbing layer 3 is 2.0mm, and the thickness of the reinforcing layer 5 is 10.0 μm.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. An anti-infrared lens is characterized by comprising a base layer, an infrared absorption layer, a near infrared absorption layer and a strengthening layer which are sequentially stacked.

2. The ir-blocking lens according to claim 1, wherein the reinforcing layer is provided with a hydrophobic oleophobic layer on the side thereof remote from the near ir absorbing layer.

3. The IR-blocking lens according to claim 1, wherein the IR absorbing layer has a thickness of 0.5 to 2.0 mm.

4. The IR-blocking lens according to claim 1, wherein the near-IR absorbing layer has a thickness of 0.5 to 2.0 mm.

5. The IR-blocking lens according to claim 1, wherein the base layer has a thickness of 1.0 to 10.0 mm.

6. The IR-blocking lens according to claim 1, wherein the reinforcing layer has a thickness of 1.0 to 10.0 μm.

7. The ir-blocking lens according to claim 1, wherein the lens is a spectacle lens.