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石英正弯月透镜
发布时间: 2025-04-09 16:44
正弯月透镜（一侧凸面，另一侧凹面）中心厚度大于边缘，其设计旨在最大限度地减少三阶球差，并使光线会聚。
产品说明
正弯月透镜（一侧凸面，另一侧凹面）中心厚度大于边缘，其设计旨在最大限度地减少三阶球差，并使光线会聚。此类透镜通常与其他透镜组合使用，以缩短焦距并增大数值孔径 (NA)。在聚焦准直光束时，应使透镜的凸面朝向光源，以进一步减小球差。正弯月透镜由于其凹面曲率半径大于凸面曲率半径，因此可以形成实像。
相比于N-BK7玻璃，紫外级熔融石英拥有更高的深紫外光（可达185nm）透过率、更佳的均匀性以及更低的热膨胀系数。此外，紫外级熔融石英几乎不产生激光诱导荧光，使其成为紫外到近红外波段应用的理想之选。
这些正弯月透镜上附加的紫外增透膜特别适用于包含多个光学元件的应用。由于入射光在每个未镀膜的基底表面约有4%的反射率，使用紫外增透膜可以显著提高透光率。这在低光照应用中尤为重要，可有效防止多重反射引起的不良影响，例如鬼线等。
通用参数
基板材料 | 紫外熔融石英 | 表面光洁度 | 40-20 |
直径公差 | +0.0 / -0.1mm | 通光孔径 | >90%直径 |
厚度公差 | ±0.1mm | 倒边 | 0.2mm×45° |
焦距公差 | ±1% | 面型精度 | λ/4@632.8nm |
| 产品型号 | 直径 | 焦距 | 中心厚度 |
| LO-FSPML-N25100 | 25.4mm | 100mm | 4mm |
| LO-FSPML-N25150 | 25.4mm | 150mm | 3.2mm |
| LO-FSPML-N25200 | 25.4mm | 200mm | 2.9mm |
| LO-FSPML-N25300 | 25.4mm | 300mm | 2.6mm |
| LO-FSPML-N25500 | 25.4mm | 500mm | 2.4mm |
| LO-FSPML-N2510A | 25.4mm | 1000mm | 2.2mm |
| LO-FSPML-N50100 | 50.8mm | 100mm | 10.7mm |
| LO-FSPML-N50150 | 50.8mm | 150mm | 7.8mm |
| LO-FSPML-N50200 | 50.8mm | 200mm | 6.6mm |
| LO-FSPML-N50300 | 50.8mm | 300mm | 5.4mm |
| LO-FSPML-N50500 | 50.8mm | 500mm | 5mm |
| LO-FSPML-N5010A | 50.8mm | 1000mm | 5mm |
| LO-FSPML-V25100 | 25.4mm | 100mm | 4mm |
| LO-FSPML-V25150 | 25.4mm | 150mm | 3.2mm |
| LO-FSPML-V25200 | 25.4mm | 200mm | 2.9mm |
| LO-FSPML-V25300 | 25.4mm | 300mm | 2.6mm |
| LO-FSPML-V25500 | 25.4mm | 500mm | 2.4mm |
| LO-FSPML-V2510A | 25.4mm | 1000mm | 2.2mm |
| LO-FSPML-V50100 | 50.8mm | 100mm | 10.7mm |
| LO-FSPML-V50150 | 50.8mm | 150mm | 7.8mm |
| LO-FSPML-V50200 | 50.8mm | 200mm | 6.6mm |
| LO-FSPML-V50300 | 50.8mm | 300mm | 5.4mm |
| LO-FSPML-V50500 | 50.8mm | 500mm | 5mm |
| LO-FSPML-V5010A | 50.8mm | 1000mm | 5mm |
| LO-FSPML-A25100 | 25.4mm | 100mm | 4mm |
| LO-FSPML-A25150 | 25.4mm | 150mm | 3.2mm |
| LO-FSPML-A25200 | 25.4mm | 200mm | 2.9mm |
| LO-FSPML-A25300 | 25.4mm | 300mm | 2.6mm |
| LO-FSPML-A25500 | 25.4mm | 500mm | 2.4mm |
| LO-FSPML-A2510A | 25.4mm | 1000mm | 2.2mm |
| LO-FSPML-A50100 | 50.8mm | 100mm | 10.7mm |
| LO-FSPML-A50150 | 50.8mm | 150mm | 7.8mm |
| LO-FSPML-A50200 | 50.8mm | 200mm | 6.6mm |
| LO-FSPML-A50300 | 50.8mm | 300mm | 5.4mm |
| LO-FSPML-A50500 | 50.8mm | 500mm | 5mm |
| LO-FSPML-A5010A | 50.8mm | 1000mm | 5mm |
| LO-FSPML-B25100 | 25.4mm | 100mm | 4mm |
| LO-FSPML-B25150 | 25.4mm | 150mm | 3.2mm |
| LO-FSPML-B25200 | 25.4mm | 200mm | 2.9mm |
| LO-FSPML-B25300 | 25.4mm | 300mm | 2.6mm |
| LO-FSPML-B25500 | 25.4mm | 500mm | 2.4mm |
| LO-FSPML-B2510A | 25.4mm | 1000mm | 2.2mm |
| LO-FSPML-B50100 | 50.8mm | 100mm | 10.7mm |
| LO-FSPML-B50150 | 50.8mm | 150mm | 7.8mm |
| LO-FSPML-B50200 | 50.8mm | 200mm | 6.6mm |
| LO-FSPML-B50300 | 50.8mm | 300mm | 5.4mm |
| LO-FSPML-B50500 | 50.8mm | 500mm | 5mm |
| LO-FSPML-B5010A | 50.8mm | 1000mm | 5mm |
| LO-FSPML-C25100 | 25.4mm | 100mm | 4mm |
| LO-FSPML-C25150 | 25.4mm | 150mm | 3.2mm |
| LO-FSPML-C25200 | 25.4mm | 200mm | 2.9mm |
| LO-FSPML-C25300 | 25.4mm | 300mm | 2.6mm |
| LO-FSPML-C25500 | 25.4mm | 500mm | 2.4mm |
| LO-FSPML-C2510A | 25.4mm | 1000mm | 2.2mm |
| LO-FSPML-C50100 | 50.8mm | 100mm | 10.7mm |
| LO-FSPML-C50150 | 50.8mm | 150mm | 7.8mm |
| LO-FSPML-C50200 | 50.8mm | 200mm | 6.6mm |
| LO-FSPML-C50300 | 50.8mm | 300mm | 5.4mm |
| LO-FSPML-C50500 | 50.8mm | 500mm | 5mm |
| LO-FSPML-C5010A | 50.8mm | 1000mm | 5mm |
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