Easy-to-clean-coating-attached glass article
US-2023322616-A1 · Oct 12, 2023 · US
Water-repellent coating lens for a camera and a manufacturing method thereof
US12320955B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12320955-B2 |
| Application number | US-202318223580-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2023 |
| Priority date | Mar 2, 2023 |
| Publication date | Jun 3, 2025 |
| Grant date | Jun 3, 2025 |
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- Title
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Abstract
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A water-repellent coating lens for a camera has enhanced abrasion resistance performance and chemical resistance performance of the water-repellent coating. The water-repellent coating lens includes a lens base layer and a plurality of coating layers deposited on the lens base layer. The plurality of coating layers include a first water-repellent coating layer containing a fluorine-based compound and a second water-repellent coating layer positioned on the bottom surface of the first water-repellent coating layer and containing an inorganic oxide.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for manufacturing a water-repellent coating lens for a camera, the method comprising: depositing an anti-reflection coating layer on a lens base layer; and forming a double water-repellent coating layer comprising a first water-repellent coating layer and a second water-repellent coating layer on the anti-reflection coating layer, wherein the first water-repellent coating layer contains a fluorine-based compound, and wherein the second water-repellent coating layer contains an inorganic oxide, wherein the forming of the double water-repellent coating layer comprises forming the second water-repellent coating layer on the anti-reflection coating layer by electron-beam evaporation, and forming the first water-repellent coating layer on the second water-repellent coating layer by electron-beam evaporation or thermal evaporation such that the second water-repellent coating layer is positioned between the anti-reflection coating layer and the first water-repellent coating layer, wherein the forming of the second water-repellent coating layer is by electron-beam evaporation at a temperature in a range of 300 to 400° C. and a vacuum degree in a range of 1.0×10 −5 torr to 2.0×10 −5 torr. 2. The method of claim 1 , wherein the second water-repellent coating layer comprises a rare earth oxide. 3. The method of claim 2 , wherein the second water-repellent coating layer comprises cerium oxide (CeO 2 ) or hafnium oxide (HfO 2 ). 4. The method of claim 1 , wherein the first water-repellent coating layer has a thickness in a range of 10 nm to 40 nm, and wherein the second water-repellent coating layer has a thickness in a range of 25 nm to 100 nm. 5. The method of claim 1 , wherein the depositing of the anti-reflection coating layer comprises forming a multilayer film of 6 or 7 layers by repeatedly alternating depositing an SiO 2 thin film and a TiO 2 thin film on the lens base layer.
Assignees
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Classifications
of the type ABO3 with A representing alkali, alkaline earth metal or Pb and B representing a refractory or rare earth metal · CPC title
containing fluorine atoms · CPC title
Glass or silica · CPC title
- C09D7/63Primary
organic · CPC title
by electron bombardment · CPC title
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- What does patent US12320955B2 cover?
- A water-repellent coating lens for a camera has enhanced abrasion resistance performance and chemical resistance performance of the water-repellent coating. The water-repellent coating lens includes a lens base layer and a plurality of coating layers deposited on the lens base layer. The plurality of coating layers include a first water-repellent coating layer containing a fluorine-based compou…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Corp, Sekonix Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09D7/63. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 03 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).