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Now offering witness samples

Posted by Bill Hill on

Witness SamplesA witness sample is really just a sacrificial test piece optical material to measure the performance of a thin film coating. Witness samples are essential to maintaining the accuracy, repeatability and traceability of the coating process. They measure the transmission and reflectivity of a given coating design while also providing indicative samples used to quantify the durability and resistance to environmental degradation from the influences of humidity, temperature and salt exposure.

Esco Optics is pleased to announce the release of our newest product line – Witness Samples. We’ve committed to stock a wide variety of optical glasses and crystals across a range of refractive indices.  These products are available in three variations, Transmission, Reflection and 8º Wedge which allows coating houses to choose the material type and configuration that best matches their application. Whether depositing precision anti-reflective or selectively transmitting designs or highly reflective dielectric or metal first surface mirrors, Esco is ready to quickly deliver the witness samples you need to keep production running.

Transmission Refractive 8º Wedge Crystals

UV Grade FS

S-FPL51

S-BSL7

S-BAL35

S-NBM51

S-BSM4

S-PHM52

F-2

SF-2

S-LAL7

SF-5

S-LAL18

LAFN7

S-TIH4

SF-11

S-TIH6

PBH-56

S-BSL7

UV Grade FS

S-BSL7

UV Grade FS

CaF2

Sapphire

ZnSe

Silicon

Germanium

 

Ready to order?  Get started now.

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