Custom Infrared Lens, thermal imaging cameras & systems components
What are DLC and AR coating?
Diamond-like carbon (DLC) membrane is an amorphous carbon membrane. The
membrane contains a certain number of sp3 bonds, giving it a series of
excellent properties close to diamond. It has the advantages of low deposition
temperature and large area deposition.
Among various hard membranes, DLC membrane can be positioned as a membrane
material with high hardness and excellent wear resistance and low coefficient
of friction.
AR (Anti-Reflection) membrane cannot change the absorption rate of the
lens itself. It can only increase the transmittance by reducing the reflectance
on both sides of the lens, which is the so-called "reflection and
antireflection".
Light is an electromagnetic wave. By matching the refractive index and
thickness of the AR membrane, the light produces multi-beam interference in the
AR membrane-destructive interference on the upper surface and constructive
interference on the lower surface.