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CN-224232063-U - Coating color-changing lens

CN224232063UCN 224232063 UCN224232063 UCN 224232063UCN-224232063-U

Abstract

The utility model relates to a coated color-changing lens. The technical problems that the existing acrylic substrate lens cannot meet the strength requirement of pressure test and the like are solved. The utility model provides a coating photochromic lens, includes the lens substrate that has convex surface and concave surface, and the convex surface and the concave surface outside of lens substrate are equipped with anti blue light layer, antistatic backing, toughness layer, hardening layer and coating film layer from inside to outside respectively in proper order, are equipped with the layer that discolours between anti blue light layer and the antistatic backing in the convex surface outside of lens substrate. The color-changing lens with the coating has the advantages that the conventional protective layer is omitted, the blue light resistant layer, the antistatic layer and the toughness layer are added, the toughness layer not only plays a role of the protective layer, but also brings good shock resistance and compressive strength to the lens, meanwhile, the blue light resistant layer and the antistatic layer increase the blue light resistant performance and the antistatic performance of the lens, and the processing technology of the coated lens is simplified.

Inventors

  • FANG YONGZENG
  • WEN WEIFENG
  • ZHENG HAO

Assignees

  • 上海伟星光学有限公司

Dates

Publication Date
20260512
Application Date
20250725

Claims (10)

  1. 1. The utility model provides a coating photochromic lens, includes lens substrate (1) that has convex surface (11) and concave surface (12), its characterized in that, convex surface (11) and concave surface (12) outside of lens substrate (1) be equipped with anti blue light layer (3), antistatic backing (4), toughness layer (5), hardening layer (6) and coating film layer (7) respectively by inside-out in proper order, just convex surface (11) outside anti blue light layer (3) and antistatic backing (4) of lens substrate (1) between be equipped with layer (8) discolour.
  2. 2. The coated color-changing lens according to claim 1, wherein the lens substrate (1) is an acrylic substrate.
  3. 3. The coated color-changing lens according to claim 1, wherein the blue light resistant layer (3) is formed by dip coating.
  4. 4. A coated color-changing lens according to claim 1, characterized in that the color-changing layer (8) is formed by spin coating.
  5. 5. A coated color shifting lens according to claim 1, characterized in that the thickness of the color shifting layer (8) is 10.0-20.0 μm.
  6. 6. The coated color-changing lens according to claim 1, wherein the antistatic layer (4) and the ductile layer (5) are formed by dip-coating.
  7. 7. A coated color-changing lens according to claim 1, characterized in that the thickness of the ductile layer (5) is 3.0-5.0 μm.
  8. 8. A coated color-changing lens according to claim 1, characterized in that the stiffening layer (6) has a thickness of 2.0-4.0 μm.
  9. 9. The coated color-changing lens according to claim 1, wherein the coating layer (7) is 7-11 metal oxide layers or fluoride coatings with different refractive indexes.
  10. 10. The coated color-changing lens according to claim 1, wherein the coating layer (7) is formed by vacuum coating, and the total thickness of the coating layer (7) is 300-500 nm.

Description

Coating color-changing lens Technical Field The utility model belongs to the technical field of resin color-changing lenses, and particularly relates to a coating color-changing lens. Background The traditional coating color-changing lens generally adopts a two-layer coating design, the bottom layer is a color-changing layer for realizing the color-changing function, the surface layer is a protective layer, wherein the color-changing layer is uniformly coated on the surface of the lens through a spin coating process, and the protective layer mainly plays a role in the cleaning link of the lens hardening treatment so as to avoid the corrosion of the color-changing layer caused by alkali liquor and cleaning agents. As the wearing safety of glasses is increasingly emphasized, the requirements of various standards on the performance of the lenses are continuously increased, which also provides higher challenges for the coating systems of the lenses. In the strength requirements of resin lenses, the produced lenses need to be subjected to pressure test, and the pressure is applied to the central part of the lenses, so that the lenses can be kept unchanged, not broken and not perforated for a certain period of time, but in the prior art, the strength requirements of the pressure test cannot be met by the lenses with acrylic base materials, including the conventional lenses with the refractive indexes of 1.499 and 1.56 and the coated color-changing lenses using the base materials. Disclosure of Invention The utility model aims to solve the problems and provide a coated color-changing lens. In order to achieve the aim, the utility model adopts the following technical scheme that the coated color-changing lens comprises a lens substrate with a convex surface and a concave surface, wherein the outer sides of the convex surface and the concave surface of the lens substrate are respectively provided with a blue light resisting layer, an antistatic layer, a toughness layer, a hardening layer and a coating layer from inside to outside in sequence, and a color-changing layer is arranged between the blue light resisting layer and the antistatic layer on the outer side of the convex surface of the lens substrate. In the above-mentioned coated color-changing lens, the lens substrate is an acrylic substrate. The lens substrate is acrylic, and acrylic has the characteristics of good light transmittance, light weight, strong impact resistance and the like, so that the lens can ensure good light transmittance effect, is lighter and more durable, and improves wearing comfort and safety. In the above coated color-changing lens, the blue light resistant layer is formed by dip coating. The dip coating process can ensure that the coating uniformly covers the surface of the lens, ensures the stability and consistency of the blue light resisting effect, ensures that the lens is more reliable in blocking blue light, and effectively protects eyes from being damaged by the blue light. In the above-mentioned coated color-changing lens, the color-changing layer is formed by spin coating. The spin coating process can accurately control the thickness of the coating, ensure the stability of the color-changing layer and ensure the uniform color-changing effect of the lens. In the above-mentioned coated color-changing lens, the thickness of the color-changing layer is 10.0-20.0 micrometers. The thickness of the color-changing layer is 10.0-20.0 micrometers, the thickness range can ensure that the content of the color-changing substance is proper, the lens can quickly and uniformly change color under different light conditions, the color-changing layer adapts to the change of ambient light, and comfortable visual experience is provided for a wearer. In the above-mentioned coated color-changing lens, the antistatic layer and the ductile layer are formed by dip-coating. By utilizing the advantages of the dip coating process, the two layers are uniformly covered, the antistatic layer can effectively reduce electrostatic adsorption dust on the surface of the lens, keep the lens clean, and the toughness layer can enhance the bending resistance of the lens and improve the durability of the lens. In the above coated color-changing lens, the thickness of the ductile layer is 3.0-5.0 μm. The thickness of the ductile layer is 3.0-5.0 microns, which not only provides sufficient ductile support to the lens, enhances impact resistance, but also does not unduly increase the weight of the lens, and combines the robustness and portability of the lens, while the ductile layer is PR-840 or DON OPTICS CO of SDC Technologies, VP-60prime of LTD. In the above-mentioned coated color-changing lens, the thickness of the hardening layer is 2.0-4.0 micrometers. The hardening layer has a thickness of 2.0-4.0 micrometers, and the proper thickness can improve the surface hardness of the lens, effectively resist scraping and abrasion, prolong the service life of the lens and r