Quick answer: Custom Infrared Window Sizes covers fused silica to 2.5 um, sapphire referrals beyond. Prototypes ship in 5-10 working days.
Selecting custom infrared window sizes starts from the detector, not the glass: protect thermal sensors without signal loss. The manufacturable window here is fused silica to 2.5 um, sapphire referrals beyond.
Specification envelope
| Optical specification | fused silica to 2.5 um, sapphire referrals beyond |
|---|---|
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
DFM notes from the shop floor
Three items decide most of the cost and lead time on this work:
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
Application context
Orders for custom infrared window sizes cluster in medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows); led packaging (groove covers, phosphor carriers, package windows); semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows).
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Related reading on this site: infrared windows, fused silica wafers 2-12 inch, JGS1 quartz glass.
Common questions
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
Is there a minimum order for custom infrared window sizes?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
Specifications on this page were last reviewed by our engineering team in August 2026.