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AR Film
      AR film (sheet)
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AR information
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AR (anti-reflection) and AGAR (anti-glare & reflection) film
Mechanism and effect


■ Effect of AR film ■ One side ? or both side ? ■ AGAR (AR with Anti-Glare) ■ For outdoor use


■ AR (anti-reflection) Mechanism
 





  The multi-layered dielectric coating on the base film would make two types of
  reflected wave interfere each other and thus eliminate reflection.
 
   
 

■ Effect of AR film
 AR film eliminates ambient light reflection which often cause problem for
 shop front window, show case, and surveillance monitor with protective case
.


 


 ■ AR film on one side ? or on both side ?
  ★ Apply AR film on both side for full effect.
 Light reflects both on front and reverse side of glass surface. Reflections are approx
 4-5% for each side, and total reflection is about 10%. AR film reduces it down to
 0.5% on each side and total reflection would cut down to less than 1% (1/10) when
 applied on both side. * Applying only on one side leaves out 5.5% reflection.

  Front side
reflection
  reverse side
reflection
  Total
reflect
No AR film 5.0 % + 5.0 % = 10.0 %
AR film on one side 0.5 % + 5.0 % = 5.5 %
AR film on both side 0.5 % + 0.5 % = 1.0 %


★ Result is clear when AR is applied on both side.








Effect Comparison
White curtain is reflected on the glass
which is set in front of picture
 
@ AGAR on front side and AR on reverse side
A AGAR on front side
B No film on both side


★ LCD and Tablet PC require film to be applied only on the monitor surface
  The reflection occurs at the boundary of 2 substances that have large differences in its density.
  (such as glass and air) Reverse side of LCD/Tablet PC monitor is usually filled with adhesives
  and has no space between. In sach case it will be sufficient to apply film only on the glass
  surface. (notice : result may vary depend on models)
★ Limited effect for Multi-Layered Glass (double/triple glazing glass)
  As described above, AR film is required to be applied on every surface of glass. 
  However, in reality, it is often impossible to apply AR film on inside surfaces of the
  multi-layered glass. Therefore, we do not recommend using AR film for those glasses.


 ■ AGAR Film (Anti-Glare and Anti-Reflection)
AGAR film is developed for mobile and LCD monitors. The diffusion processed film
eliminates highlights which can not completely be eliminated only by AR film.
 
AGAR film is effective only when the object set behind the glass is within 1cm.
It would look blurry when it is set apart from the glass. For this reason, AGAR film is
not effective when it is applied on show windows or show case. it is effective only for
LCD monitor, picture frame and such. Application only one one side is sufficient when
there is no space left on the reverse side.

* Low price AR film often has only AG treatment and not AR

AGAR on Smart phone AGAR on PC monitor




 ■ For Outdoor Use
AR film and acrylic are designed and developed for indoor use, and it is susceptible to rain, wind and especially susceptible to strong UV. With that said, it is also fact that many customers use film in outdoor environment as well since it has to be applied on
both side of window. We usually recommend the film applied outdoor to be replaced somewhere around 2 years, however please note that longevity depends completely
on environment to which film is exposed to and we are unable to guarantee that.