Optics & optical coatings

Guide | Technical Referance

Traceability

All products produced by Sigma Koki are inspected with valid metrology instruments that have supporting traceability. Instruments and supporting equipment in our metrology department are calibrated by their respective manufacturers or certified laboratories. Our maintenance program ensures that the level of accuracy is always at optimum levels.
It is possible to request for a Calibration Inspection Certificate for the metrology instrument used against any of our products inspected. (Please note that that will be a small fee for this request)

Nspecting MachineManufactureInspecting Item
Interferometer ZYGO CORPORATION Reflecting Wavefront Accuracy,
Transmitting Wavefront Accuracy (Up to φ150mm)
Auto-collimator NIKON CORP. Parallelism (within 30arcmin)
Spectrophotometer HITACHI LTD Transmittance

Traceability System of Interferometer

Traceability System of Interferometer

Traceability System of Auto-collimator

Traceability System of Auto-collimator

Traceability System of Spectrophotometer

Traceability System of Spectrophotometer