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Ball lenses are great tools for improving signal coupling between fibers, emitters, and detectors. Polished sapphire and ruby balls are used with D = 0.3–6.35 mm ± 2.54 m m and a sphericity to within 0.64mm.
CD disks are fabricated of polycarbonate. In the near future sapphire disks will be developed for long-term storage of significant data.
Table 1 Size of substrates
| 2 inches Substrates | 4 inches Substrates | 6 inches Substrates |
Diameter (mm) | 50.9±0.1 | 100.1±0.1 | 150.1±0.1 |
Primary Flat Length (mm) | 16±1 | 31±1 | 47.5±1 |
Table 2 Specification of substrates
Material | High purity Single Crystal Sapphire |
Surface Orientation | C-plane ± 0.1° |
Primary Flat Orientation | A-plane ± 0.5° |
Broken edge length | ≤3mm |
Crack | 0 |
Defect | No inclusion,twin,or boundary |
Bubble and cloud | Dense bubbles, clouds, and scattered bubble marked and counted as defects by length |
EPD | ≤1000 pits/cm2 |
Product Categories : Sapphire Window > Sapphire Lens
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