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Specification
Glass lenses reduce anti-reflection and block optical noise through multiple processes of cutting, grinding, polishing, centering, coating and inking. Currently, such glass lenses are the mainstream of the market.
| Glass Lens & Prism |
Grinding |
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Grind/ centering/ coating/ Inking |
| Specification/ |
Diameter 2-100φ |
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| Processing Precision/ |
Newton's Rings ±2本(AS1/4λ) |
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Thickness Tolerance ±0.02mm |
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| Centering |
Inking |
| Processing Precision/ |
Diameter Tolerance ±0.005mm |
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Centering Error 30" |
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Z-Value>0.08 |
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Polygon、D-Cut |
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| Lens Single, Doublet, Triplet |
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| Coating |
| Processing Precision/ |
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| • R max ≦ 0.2 % 440 ~ 650nm |
| • Broad Band A.R(425 – 1000nm) R max < 1.1%, R ave < 0.8% |
| • 430 ~ 620mm T ave ≥ 97% |
| • T ave ≦ 1% at 700nm ~ 1100nm |
| •T min ≥ 92%,T=50%, at 650 ± 5nm |
| ML coater with 70+ layers capability |
| Coating Machine/ |
Crystal & optical monitor
ML Coater with Ion-source assistance |
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