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Spherical Lenses
| ＜Product introduction＞ | |
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| Generate different size and sharp spherical glass lens by proper process, widely used in various lens unit and lens module. | |
| ・The whole process can be finished in Sunny, the machines of each process are domestic advanced. ・Stable techinical engineers, especially for grinding which accumulated 30 years' technology deposition. ・Grinding: Multichip honeycomb tool grinding, Three jaw grinding process, Soft material, Large diameter process ・Centering: High-precision NAKAMURA-TOME AUTO centering machine, can produce deformed lens, lens element with steps on the rim. ・Coating: can produce vehicle-mounted waterproof flim, UVIR film etc. ・Gluing, Painting: can glue the lens with diameter about 60mm ・Grinding: Clip type, Multichip three jaw type. ・Coating: waterproof film, UVIR FILM ・Centering: deformed lens process. ・Gluing: Illumination uniformity process |
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| ＜Technical specifications＞ | |
| Diamater | 2.5~120mm, |
| Tolerance | ≥±0.005 |
| Center thickness | ≥0.3mm, |
| Tolerance | ≥±0.01 |
| Newtonring | ≥±2 ring |
| Surface Accuracy | △N≥0.3 |
| Outer Diameter/Center thickness | ≤30 |
| Centering coefficient | Z≥0.05 |
| Eccentricity | C≥30" |
| Centering types | D type, H type etc. |
| Centering Depth Tolerance | ≥±0.005 |
| Single Layer Reflecting Film Central Wavelength Tolerance: | ±20nm Multi-layer Film 400-730nm,R<0.5% |
| UVIR | Flim |
| Glue overflow | ≥ 0.2mm |
| Surface Accuracy after gluing | △N≥0.5 |