Abstract: High Transmission Neutral Colour Anti-Reflection Coating for Patterned Solar Glass This invention discloses a patterned solar glass with a neutral colour anti reflection coating (ARC) designed to enhance light transmission and optical performance. The dual-side structured glass features a smoother side coated with a two-layer anti-reflection coating. The bottom layer is formulated from a silane precursor, a hydrolyzing agent, an acid catalyst, porosity-enhancing agents, and a combination of solvents, achieving a refractive index of 1.4 to 1.5. The top layer is a nano-composite-based AR coating with a refractive index of 1.25 to 1.35 is applied on the bottom layer. The layers are chemically bonded via a roll-coating process, with precise thickness control wherein, the bottom layer ranges from 180–210 nm and the top layer ranges from 140–160 nm. This gradient refractive index structure results in a transmission gain of 2.3% and minimizing Fresnel reflection losses. The coating ensures neutral colour appearance and uniform light transmission, improving omnidirectional performance under varying light angles. (Referring to the Fig. 1)
We claim:
1. A patterned solar glass with neutral colour anti reflection coating comprising:
a dual side structured patterned solar glass having a smoother side and a rough
side wherein, the smoother side is coated with a neutral colour anti- reflection
coating comprising a bottom layer and a top layer, wherein,
the said bottom layer is composed of a silane precursor, a
hydrolyzing agent, an acid catalyst, porosity enhancing agents
and at least two solvents the said top layer is composed of a nano-composite based antireflection coating composition having porosity enhancing
agents and binders, wherein the said top layer is applied on the
bottom layer, wherein, refractive index of said bottom layer
ranges from 1.4 to 1.5 and the refractive index of top layer
ranges from 1.25 to 1.35, thereby creating a gradient refractive
index resulting in a transmission gain of 2.3% and exhibiting a
neutral colour appearance by ensuring uniform light
transmission, thereby enhancing the performance in varying
light angles due to its omnidirectional properties.
2. The neutral colour anti reflection coating of claim 1, wherein the top layer is
chemically bonded to the bottom layer via a roll coating process in a
controlled environment to achieve uniform coating thickness.
3. The neutral colour anti relection coating of claim 1, wherein the combination
of a high-transparency bottom layer and a nano-composite-based top layer
results in a single anti reflection coating
| # | Name | Date |
|---|---|---|
| 1 | 202421016954-STATEMENT OF UNDERTAKING (FORM 3) [08-03-2024(online)].pdf | 2024-03-08 |
| 2 | 202421016954-PROVISIONAL SPECIFICATION [08-03-2024(online)].pdf | 2024-03-08 |
| 3 | 202421016954-FORM 1 [08-03-2024(online)].pdf | 2024-03-08 |
| 4 | 202421016954-DECLARATION OF INVENTORSHIP (FORM 5) [08-03-2024(online)].pdf | 2024-03-08 |
| 5 | 202421016954-Proof of Right [09-05-2024(online)].pdf | 2024-05-09 |
| 6 | 202421016954-FORM-26 [09-05-2024(online)].pdf | 2024-05-09 |
| 7 | 202421016954-Proof of Right [25-06-2024(online)].pdf | 2024-06-25 |
| 8 | 202421016954-FORM-26 [25-06-2024(online)].pdf | 2024-06-25 |
| 9 | 202421016954-DRAWING [07-03-2025(online)].pdf | 2025-03-07 |
| 10 | 202421016954-COMPLETE SPECIFICATION [07-03-2025(online)].pdf | 2025-03-07 |
| 11 | Abstract.jpg | 2025-04-28 |
| 12 | 202421016954-Power of Attorney [06-08-2025(online)].pdf | 2025-08-06 |
| 13 | 202421016954-Form 1 (Submitted on date of filing) [06-08-2025(online)].pdf | 2025-08-06 |
| 14 | 202421016954-Covering Letter [06-08-2025(online)].pdf | 2025-08-06 |