Jenoptik's Optical Systems Division unveils its new product line of
Hybrid-Diamond-Like-Carbon (DLC) coatings for multispectral use.
Jenoptik's technology launches a new technology generation of
environmentally highly resistant optical coatings and components. It
combines the superior toughness of protective DLC coatings with the
versatility and multispectral functionality of High-End IR coatings.
The optics which is built into infrared systems of metrology, test and
monitoring equipment is required to transmit high-quality images and
signals with long-time stability. It must do so despite harsh
environmental conditions and process-induced impacts on optical
components and their coatings. DLC - also referred to as "hard carbon"
IR coatings - represent the state-of-the-art in optical systems of
thermo-sensor-based monitoring plants for industrial, civil and
military applications. They can be manufactured on such materials as
silicon or germanium. This can be achieved, in the simplest case,
through adaptation of refractive indexes (single-layer coating).
Jenoptik's newly developed Hybrid-DLC coating unites lasting resistance
with the clearly improved transmittance of a dielectrical coating
(Fig.1). This places Jenoptik among few companies worldwide which have
the capability to selectively manufacture customized IR windows of
highest durability and lowest residual spectral reflection. A
sophisticated design and production process makes it possible to
minimize internal coating tensions and, hence, warrant the durability
and adhesive power in accordance with such established testing
standards as TS 1888 (Windscreen-Wiper Test).
This successful product line will be extended by hybrid filter coatings in the future.
In addition, these spectral properties can be achieved in two separate
wavelength ranges (e.g. MWIR and LWIR). Multispectral coatings of this
type provide users of coatings with new solutions in design and
application. By way of example, Fig. 2 shows a multispectral Hybrid-DLC
coating with optimized transmittance (Avg > 80%) between 2.7 ?m and
More information at www.jenoptik.com/