Refractive Index
Fig. 1 Prisms.
BK7 or equivalent glasses
| Expanded Uncertainty(k=2) | Measurement Conditions | Accreditation |
|---|---|---|
| 2.2×10-6 | Prisms. BK7 or equivalent glasses (1.51~1.52 at 633 nm). Size: From 40 mm to 80 mm. Measurement wavelength: 632.99 nm (in vacuum) |
ASNITE, KCDB (New window will open.) |
| 1.4×10-5 | Prisms. BK7 or equivalent glasses (1.51~1.53 at 546 nm). Size: From 40 mm to 80 mm. Measurement wavelength: 546.2 nm (in vacuum) |
ASNITE, KCDB (New window will open.) |
Calibration Authority
HORI YasuakiInternational Comparison Participated
| Comparison ID | Type | Time | Transfer devices | KCDB (New window will open.) |
|---|---|---|---|---|
| COOMET.PR-S3 | COOMET Supplementary Comparison | 2010-2011 | Three prisms made of different glasses. | COOMET.PR-S3 |