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| Edge length and diameter | +/-0.2 mm |
| Thickness | For ≤ 1mm: ± 0.1mm For > 1 – 3mm: ± 0.2mm |
| Surface Quality | 60 – 40 |
| Surface Accuracy | ≤8 Waves |
| Parallelism | ≤3 arcmin |
| Clear Aperture | ≥90% |
| Edges & Bevels | Round parts ≥ ∅5mm: polished edges & protective bevel Square & rectangular parts < 50 x 50mm: polished edges, no bevel |
| Edge Chips | For ≤ ∅80mm: < 0.3mm (5/E0.3), for ≥ ∅81mm < 0.6mm (5/E0.6) |
| Polishing quality | P2 |
| Defects | 5/3 x 0.63 |
| All edges machined | |
| Round filters with chamfer max. 0.5mm, square and rectangular < 50x50mm without chamfer | |
| Edge chips permitted up to 5/E0.3 | |
| SCHOTT 光學濾光片玻璃一般資訊 | |||||
| BG | Blue, blue-green, and multiband glasses | ||||
| GG | Nearly colorless to yellow glasses, IR transmitting | ||||
| KG | Virtually colorless glasses with high transmission in the visible and absorption in the IR | ||||
| NG | Neutral density glasses with uniform attenuation in the visible range | ||||
| OG | Orange glasses, IR transmitting | ||||
| RG | Red and black glasses, blocking visible, IR transmitting | ||||
| UG | Black and blue glasses, UV transmitting | ||||
| VG | Green glasses | ||||
| WG | Colorless glasses with different cut-offs in the UV, transmitting in the visible and IR ranges | ||||
| Note: The spectral curves above show the internal transmittance of the individual optical filter glasses | |||||
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