What is the Difference Between AG/AR/AF Class?

March 3, 2023
Latest company news about What is the Difference Between AG/AR/AF Class?

Understanding the glass surface treatments: AG, AR, AF

 

  • AG (Anti-Glare) coating

 

AG coating makes the reflective surface of the glass become a matte surface and changes the surface roughness by the method of chemical etching or spraying coat, to achieve a matte effect.

 

When the external light reflects onto the surface, diffuse reflection occurs, as to reduce the reflection of light. We can experience better vision and avoid glare.

 

latest company news about What is the Difference Between AG/AR/AF Class?  0

Figure 1. AG coating

 

Anti-glare glasses are commonly used for outdoor display or display under strong light. Such as advertising screens, ATMs, POS cash registers, medical B-ultrasound displays, e-book readers, subway ticket checkers, etc.

 

  • AR (Anti-Reflection) coating

 

AR coating reduces the reflectivity of glass and increases the transmissivity by optical coating technology.

 

It can increase the transmissivity of the glass to more than 99% at most and control reflectivity to less than 1%.

 

By improving the glass transmission, the image of the display screen will be presented more clearly, and we can enjoy a more comfortable vision.

 

Anti-reflection glass is widely used in HD displays, photo frames, mobile phones, and cameras of various instruments, front and rear windscreens of cars, solar photovoltaic industry, etc.

 

  • AF (Anti-Fingerprint) coating

 

AF coating is a layer of nano-materials on the surface of the glass by imitation of the lotus leaf effect. The surface has strong hydrophobicity, can resist oil stain and fingerprint residual.

It is smooth and comfortable to touch.

Anti-fingerprint coating can apply to all touch screens and only need to be on the front side of the glass (non-tin side).

 

latest company news about What is the Difference Between AG/AR/AF Class?  1

Figure 2. AF coating

 

II. How to quickly identify AG/AR/AF glass?

 

Here are some ways to quickly identify them through small experiments:

 

  • AG glass

 

Put a piece of glass under a daylight lamp, then view the lamp from the glass.

 

If the light is dispersed, it’s an AG surface; and if that is clearly visible, it’s not.

 

latest company news about What is the Difference Between AG/AR/AF Class?  2

Figure 3. Ordinary glass vs. AG glass

 

  • AR glass

 

Put a piece of ordinary glass and AR glass in front of the computer respectively.

 

The image through AR glass shows more clear than through ordinary glass.

 

latest company news about What is the Difference Between AG/AR/AF Class?  3

Figure 4. Computer image shows through Ordinary glass vs. AR glass

 

  • AF glass

 

Drops of water on the glass surface, if the water can roll freely, this is the AF surface.

 

latest company news about What is the Difference Between AG/AR/AF Class?  4

Figure 5. Ordinary glass vs. AF glass

 

Use a grease pen drawing lines on the surface of the glass, it is hard to mark on the surface with anti-finger coating.

 

latest company news about What is the Difference Between AG/AR/AF Class?  5

Figure 6. Mark left on ordinary glass vs. AF glass

 

Application Tips

 

To reduce visual interference and achieve better visual effects in different scenarios. The terminal design usually chooses a combination of multi-coating surfaces.

 

On the surface of AG, we can also add on an AR coating or apply other combinations, like AG + AF, AR + AF, and AG + AR + AF.