Application
Glass and optical surfaces.
Use screening or prototype projects for coating variants where optical appearance, durability, cleanability, and supplier validation have to be balanced.
Physical screen
Optical variants start on circular wafers and move into uniform samples.

Optical coating wafer
The composition gradient stays on the wafer so optical response can be measured by registered position.
Uniform coated samples
Follow-up glass pieces are separate uniform samples for inspection, handling, and later validation.Decision problem
A few supplier samples rarely cover the coating option space.
Reflectance, color neutrality, transparency, haze, fingerprints, cleanability, scratch response, and durability can shift together. xemX can create a physical screening campaign or a narrower prototype coating project before a team commits to supplier or product validation.
Customers can bring a coated-glass, optical-surface, supplier-sample, or product-validation question that needs a physical shortlist.
Screening campaign
Create related coating or thin-film variants and compare optical, surface, and durability responses before selecting sample directions.
Prototype coating project
Start from a narrower coating, stack, substrate, or supplier question and make coated samples for early evaluation.
What can be measured
Reflectance, absorption, transparency, color shift, cleanability, scratch response, durability indicators, structure, or surface change.
What comes back
Optical and durability maps, coating variants to repeat, coating variants to rule out, and coated glass or coupon samples when the substrate and test route fit.
xemX can identify glass and optical coating variants worth repeating. Final product qualification, long-term field testing, and supplier scale-up usually remain downstream.