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CN-224203453-U - Cleanable depolarizing film

CN224203453UCN 224203453 UCN224203453 UCN 224203453UCN-224203453-U

Abstract

The utility model discloses a cleanable depolarization film, which comprises a substrate, wherein a first protective film layer made of aluminum oxide is plated on the substrate, a depolarization film layer is plated on the first protective film layer, an anti-glare film layer is plated on the depolarization film layer, a second protective film layer made of aluminum oxide is plated on the anti-glare film layer, and an antioxidation film layer is plated on the second protective film layer.

Inventors

  • GAO GUANGJU
  • HE JIAKAI

Assignees

  • 中山市怡山光学有限公司

Dates

Publication Date
20260505
Application Date
20250520

Claims (6)

  1. 1. The cleanable depolarization film comprises a substrate and is characterized in that a first protective film layer made of aluminum oxide is plated on the substrate, the depolarization film layer is plated on the first protective film layer, the thickness of the depolarization film layer is 200-400nm, an anti-glare film layer is plated on the depolarization film layer, a second protective film layer made of aluminum oxide is plated on the anti-glare film layer, and an anti-oxidation film layer is plated on the second protective film layer.
  2. 2. The washable polarizing film of claim 1, wherein the first protective film layer is aluminum oxide and has a thickness of 100-150nm.
  3. 3. The washable polarizing film of claim 1, wherein the polarizing film converts light of different polarization states to uniform unpolarized light within a visible light wavelength of 400nm-760nm at a split ratio of 8:2, 7:3, 6:4, 5:5, 4:6, 3:7, 2:8, and a polarization degree of less than 5%.
  4. 4. The washable polarizing film of claim 1, wherein the antiglare film layer has a thickness of 50 to 80nm.
  5. 5. The washable polarizing film of claim 1, wherein the second protective film layer is aluminum oxide having a thickness of 80-120nm.
  6. 6. The washable polarizing film of claim 1, wherein the thickness of the antioxidant film layer is between 100 nm and 150nm.

Description

Cleanable depolarizing film Technical Field The utility model relates to the technical field of depolarization films, in particular to a washable depolarization film. Background In the optical field, the depolarization film is widely applied to various optical instruments and devices, such as a camera lens, a telescope, a microscope, etc., for eliminating the polarization phenomenon of light rays and improving the imaging quality of an optical system. However, existing depolarizing film products generally suffer from a number of problems. On the one hand, in daily use, the film surface is easy to be stained with pollutants such as dust, greasy dirt, and when the film is cleaned, the existing depolarization film is easy to be damaged due to cleaning operation, so that the optical performance of the film is reduced, and even the depolarization function is lost. On the other hand, when the depolarization film is exposed to air for a long time, the depolarization film is easy to chemically react with oxygen to generate oxidation phenomenon, so that the chemical composition and microstructure of the film layer can be changed, the optical performance of the film layer can be gradually deteriorated, and the service life of a product is shortened. Meanwhile, the existing depolarization film has to be improved in light splitting performance. The spectral curve of the optical system cannot well meet application scenes with strict requirements on light polarization and spectral distribution, so that in actual use, the processing capability of the optical system on light rays with different wavelengths is insufficient, and imaging definition and color reduction degree are affected. Disclosure of utility model The utility model aims to provide a cleanable depolarization film, which improves the light splitting performance through the depolarization film, reduces the polarization degree of light, effectively blocks the invasion of oxygen molecules through the antioxidation film, and prevents the oxidation reaction of the inner film, thereby prolonging the service life of the product. The utility model provides a technical scheme that a cleanable depolarization film comprises a substrate, wherein a first protective film layer made of aluminum oxide is plated on the substrate, the depolarization film layer is plated on the first protective film layer, the thickness of the depolarization film layer is 200-400nm, an anti-glare film layer is plated on the depolarization film layer, a second protective film layer made of aluminum oxide is plated on the anti-glare film layer, and an anti-oxidation film layer is plated on the second protective film layer. Further, the first protective film layer is alumina, and the thickness is 100-150nm. Further, the depolarization film layer converts light rays with different polarization states into uniform unpolarized light within the visible light wavelength of 400-760 nm, the light splitting ratio reaches 8:2, 7:3, 6:4, 5:5, 4:6, 3:7 and 2:8, and the polarization degree is less than 5%. Further, the thickness of the anti-dazzle film layer is 50-80nm. Further, the second protective film layer is alumina, and the thickness is 80-120nm. Further, the thickness of the antioxidation film layer is 100-150nm. Compared with the prior art, the utility model has the following beneficial effects: (1) The light splitting performance is improved through the depolarization film layer, and meanwhile, the polarization degree of light is reduced; (2) The oxidation resistant film layer effectively blocks the invasion of oxygen molecules and prevents the oxidation reaction of the inner film layer, so that the service life of the product is prolonged. Drawings The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings: FIG. 1 is a schematic illustration of the overall structure of the present utility model; FIG. 2 is a schematic representation of the transmittance of a polarizing film of the present utility model; FIG. 3 is a schematic view of the degree of polarization of a depolarizing film of the present utility model; In the figure, 1, a substrate, 2, a first protective film layer, 3, a polarizing film layer, 4, an anti-dazzle film layer, 5, a second protective film layer and 6, an anti-oxidation film layer. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are i