Custom MWIR / LWIR IR Optical Domes | Ge, Si, ZnSe, ZnS Manufacturer

We manufacture IR domes from Germanium (Ge), Silicon (Si), Zinc Selenide (ZnSe) and Zinc Sulfide (ZnS). Other IR materials such as MgF₂, CaF₂ or Sapphire are available for specific wavelength ranges. Final material selection depends on your operating wavelength, environment and budget.

Yes. We manufacture MWIR domes (3-5μm band, typically Ge or Si) and LWIR domes (8-12μm band, typically Ge or ZnS), as well as broadband domes covering multiple bands. The coating is designed specifically for your operating wavelength.

Yes. We produce hemispherical domes, partial hemispheres, spherical domes and custom contoured domes with flanges, steps, grooves or mounting features. Diameter range is Ø10mm to Ø300mm, with custom sizes available on request.

We offer MWIR AR (3-5μm, average reflectance <2% per surface), LWIR AR (8-12μm, average reflectance <2% per surface), broadband AR coatings, and DLC (diamond-like carbon) protective overcoatings for harsh environments. All coatings are verified by spectrophotometer.

Yes. Send us your operating wavelength, environmental conditions (temperature range, moisture, vibration), mechanical requirements and target budget. Our engineering team will recommend the optimal material and coating combination within 1 business day.

Prototype MOQ is 1 piece for engineering evaluation. For production, small batches start at 10 pieces. Mass production pricing applies at 100+ pieces. There is no minimum for initial engineering review — send your drawing even if you only need one sample.

Prototype: 5-10 working days for standard geometry, 10-15 days for complex geometry with coating. Small batch (10-50 pcs): 10-15 working days. Mass production (100+ pcs): 15-25 working days. Rush prototype service is available — ask for current capacity.

No. You can start with approximate dimensions, wavelength, application description or a reference sample. We will provide a DFM (Design for Manufacturing) review and recommend tolerances. A formal drawing is required before prototype production begins.

Every lot undergoes dimensional inspection (CMM), optical surface inspection (microscope per MIL-PRF-13830B), surface figure measurement (interferometer) and coating verification (spectrophotometer). We provide inspection reports with every shipment, including first-article inspection for new parts.

If parts fail to meet the approved drawing or purchase specification, we will either rework or replace the non-conforming parts at no cost, or issue a full refund for the affected quantity. We stand behind every shipment with a written quality guarantee.

Yes. If you do not have a drawing, send us a reference sample. We will reverse-engineer the geometry, measure optical parameters and create a manufacturing drawing for your approval before production.

Yes. We can perform thermal shock (-40°C to +85°C), temperature cycling, humidity (MIL-STD-810), salt spray, vibration and adhesion testing per your specification. Test reports are provided with the shipment. Custom test protocols available on request.