CVD Zinc Sulfide® and Cleartran®

Durable materials for VIS and IR applications

CVD Ceramics‘ chemically vapor deposited CVD Zinc Sulfide® is the low cost alternative for infrared windows, domes and optical elements.

With a fracture strength double that of zinc selenide and high hardness, zinc sulfide has been used successfully in many military applications requiring mechanical resistance to hostile                                                              environments.

Cleartran® is a form of CVD Zinc Sulfide® material that is modified by a post-deposition hot isostatic process. This process removes zinc hydrides from the crystal lattice, normalizes crystal structure and purifies the material. These contribute to single crystal-like transmittance in the visible through far infrared ranges (0.35 -14 microns). With its low absorption and scatter throughout its broad transmitting range and high optical quality, Cleartran® is particularly well-suited for multi-spectral applications that require a single aperture for beam path for several wavebands.

CVD Zinc Sulfide® and Cleartran® are chemically inert, non-hygroscopic, highly pure, theoretically dense and easily machined.

Custom diameters, rectangles, CNC-profiled blanks, generated lens blanks, prisms and near-net shape domes can be made to your specifications.

Advantages

  • Excellent mechanical and environmental resistance
  • Transmission in VIS and IR  (0.35 to 14µm)
  • Low scattering
  • Chemically inert
  • Non-hygroscopic
  • Easily machined

 

Zinc Sulfide / Cleartran (Data Sheet)

Download

Contact/Inquiry

Hellma Materials GmbH
Moritz-von-Rohr-Straße 1
07745 Jena
Germany

Phone: +49 3641 28770
info.materials@hellma.com
https://www.hellma.com

Contact/Inquiry

Note: Your data will of course be treated confidentially and will not be shared with third parties. You can revoke your consent at any time by clicking on the end of each e-mail.
Required Field