DLC coating

Features

We can produce highly durable anti-reflection films with DLC coating (hard carbon film; diamond-like carbon).
The company’s unique coating using a plasma CVD method combines two features: high transmittance rates and high durability in the mid-infrared region (MIR).
We can coat Ge, Si, quartz, glass, chalcogenide and other substrate materials.
In addition, we can work not only with flat plates, but also lens materials, so please consult with us about your needs.

Applications

Infrared image element windows, combined lens for optical systems using infrared, window material for CO2 laser processing machine, etc.

Example characteristics

High transmittance rate

DLC is transparent in the mid-infrared region (MIR) so we can obtain anti-reflection film with high transmittance for Ge and Si substrates.

High durability

We can obtain a film surface with high hardness and excellent wear resistance for use as a protective film on the outermost layer.
In addition, it also has excellent moisture and salt water resistance.

Humidity resistance: 85・C / 85%Rh 600Hr 
Peeling resistance: MIL-C-48497A 4.5.3.1 
Salt water resistance: 85・C / 5wt% / 24Hrs
Maximum filmable size: φ400