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Coatings are used for all kinds of materials. Still, optical coatings are widely used in the glass industry, camera industry, and other industries. But the question arises that what are optical coatings used for?
What Are Optical Thin Film Coatings?
Optical thin film coatings are coatings deposited on a surface to create a transparent layer of material. The process is similar to how window glass is coated with paint or other substances.
The most common optical thin film coating type is made from organic materials such as waxes, oils, resins, and polymers. These coatings can be used in various applications such as windows, lenses, light-emitting diodes (LEDs), displays, and lighting fixtures.
Vacuum deposition processes can also apply thin films for applications where space is limited or when high-resolution patterns are needed. If you need precision optical products then you can contact PFG optics.
What are optical coatings used for?
Optical coatings are used in the lenses of glasses and other optical devices to protect against scratching, corrosion, and water damage.
There are many benefits of using optical coatings:
- It protects your eyes from scratches by keeping them clean and clear.
- It helps prevent lens fogging due to condensation.
- It makes it more comfortable for people with visual impairments to see clearly by enhancing contrast.
- It increases light transmission so that you can see better without squinting or straining your eyes when viewing bright scenes like at a theater or while driving at night.
Common Optical Coatings
Here I have collected some of the most familiar uses for optical coatings.
Glass
Optical coatings are coated on glass for many purposes like Fiber optic lenses Glass panels for windows, mirrors, etc. Windows Optical fibers These are some of the examples which are used for glass applications. But if you wonder why they are used on glass, you must know about the transparent glass. The transparent glass comprises two glass panes, which are separated by a thin layer called the interlayer. There are two essential components present in this layer: silica and alkali. Silica: Silica is one of the basic building blocks of glass. It gives structural strength to the glass. Alkali: Alkali is one of the most common ingredients used in glass manufacturing. So, alkali is added to the glass to strengthen it.
Cameras
You may have heard that you should never point your camera lens directly at the sun. But in reality, what you are thinking is the optical coating is used in cameras to reduce glare or light reflections. What are the types of cameras? Single-lens reflex Mirrorless Digital single-lens reflex cameras are primarily used today. Conclusion: It is a fact that coatings are used in many fields but here, I have only shared the most important uses of optical coatings.
