Lambertian Black™ coating with highly diffusive reflecting surface when uniform light scattering is required. Like all Acktar coatings, Lambertian Black has extremely low reflectance in the EUV, UV, VIS up to LWIR regions.
In addition, this coating has high abrasion resistance and high cleanability.
- Essentially zero outgassing
- Vacuum and thermal-vacuum cycling compatible
- No particulation
- Only a few microns thick
- Adhesion virtually to all substrate materials
Lambertian BlackTM is the coating of choice ideal matt surface required, with lowest reflectance in the UV, VIS and IR regions.
In addition to its superior optical performance Lambertian BlackTM delivers high abrasion resistance, and can be easily cleaned using clean cloth wiped with a solvent:
Like other Acktar coatings, this is completely inorganic coating with many advantages such as zero outgassing, vacuum compatible and UV stable.
Detailed BRDF data is available.
Sample image under grazing light illumination – Lambertian BlackTM (left) vs diffusive black surface (right):
Technically, a lambertian sourface exsibit isotropic luminance while the luminous (the emitted power of the light) obeys Lambertian cosine law.
Lambertian BlackTM exhibit nearly perfect Lambertian reflectance in all wavelengths (UV, VIS, IR), and characterized by following BRDF behaviour:
* Detailed BRDF data is available.