![](/en/images/proticon1.png)
Category of indicators | White light spherical preform | White light bulb | ||
diameter | φ3-φ80mm | φ0.8-φ15mm | ||
diameter tolerance | ±10μm | ±5μm | ||
thickness tolerance | ±10μm | |||
ovality | 3μm | |||
surface defects | φ3-φ40mm:20-10 | 20-10 | ||
φ40-φ80mm:40-20 |
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Category of indicators | Infrared spherical preform | Sulfur system ball | |
diameter | φ3-φ50mm | φ3-φ15mm | |
diameter tolerance | ±10μm | ±5μm | |
thickness tolerance | ±20μm | ||
ovality | 5μm | ||
surface defects | 40-20 | 40-20 |
Administrative Hotline:0710-334-9999
Marketing Hotline:139-8637-2009
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