Thorlabs 索雷博 LA1301-A-ML 平凸透镜
Thorlabs 索雷博 LA1301-A-ML 平凸透镜
LA1301-A-ML - 平凸透镜，N-BK7，Ø2英寸，SM2螺纹外壳，f = 250 mm，增透膜：350-700 nm
平凸透镜，N-BK7，已安装(增透膜：350 - 700 nm)
| N-BK7 Plano-Convex Spherical Singlets | |
|---|---|
| Lens Shape | Plano-Convex |
| Substrate Material | N-BK7 (Grade A)a |
| AR Coating Range | 350 nm - 700 nm (-A Coating) |
| Reflectance Over AR Coating Range (AOI = 0°) |
Ravg < 0.5% |
| Design Wavelength | 587.6 nm or 633 nmb |
| Index of Refraction | 1.517 (@ 587.6 nm) 1.515 (@ 633 nm) |
| Surface Quality | 40-20 Scratch-Dig |
| Surface Flatnessc (Plano Side) | λ/2 |
| Spherical Surface Powerc,d (Convex Side) |
3λ/2 |
| Surface Irregularityc (Peak to Valley) | λ/4 |
| Damage Thresholde | 7.5 J/cm2 (532 nm, 10 ns, 10 Hz, Ø0.504 mm) |
| Abbe Number | vd = 64.17 |
| Centration | < 3 arcmin |
| Clear Aperture | Ø1/2" Lenses: >Ø11.05 mm Ø1" Lenses: >Ø22.86 mm Ø1.5" Lenses: >Ø34.29 mm Ø2" Lenses: >Ø45.72 mm |
| Focal Length Tolerance | ±1% |
特性
- 材料：N-BK7
- 增透膜波长范围：350 - 700 nm
- 可选直径Ø1/2英寸、Ø1英寸、Ø1.5英寸或Ø2英寸
- 焦距范围从15 mm到2500 mm
- 安装在兼容SM螺纹的透镜单元上，带卡环
这些平凸透镜由符合RoHS标准的N-BK7材料制造，并且镀有增透膜，在350 - 700 nm波长范围内提供每个表面< 0.5%的平均反射率。N-BK7通常用于不需要紫外熔融石英的高级性能(如在紫外波段的高透过率和较低的热膨胀系数)的应用场合。这些Ø1/2英寸、Ø1英寸、Ø1.5英寸和Ø2英寸的透镜分别安装在兼容SM05(0.535"-40)、SM1(1.035"-40)、SM1.5(1.535"-40)和SM2(2.035"-40)螺纹的安装座上，从而可以兼容我们的SM螺纹透镜套筒。SM螺纹卡环用于将透镜固定在安装座中。每个安装座都刻有型号、透镜类型、焦距、指向透镜弯曲表面的箭头，以及增透膜范围。
与所有的平凸透镜一样，对于无限远和有限远共轭应用，这些透镜的焦距是正的，而且具有近似于最佳的外形。它们可以用来会聚准直光束或准直点光源发出的光。为了最小化球差，准直光聚焦时应从透镜的曲面入射，而点光源准直时应从透镜的平面入射。
透镜的焦距可用简化的厚透镜方程来计算：
这里n为折射率，R为透镜表面的曲率半径。更多信息，请见教程标签。
我们已安装的N-BK7平凸透镜提供未镀膜的版本或从五种增透膜(A、AB、B、C或D膜)中选择一种镀膜的版本，增透膜可减少透镜每个表面指定波长范围的反射光。本页为镀A膜的已安装的透镜，A膜的设计波长范围是350-700 nm。其他增透膜透镜在我们网站的页面链接已在下方的选择指南表格中给出。镀膜信息请看曲线标签。
| N-BK7 Plano-Convex Lens Selection Guide | |
|---|---|
| Unmounted Lenses | Mounted Lenses |
| Uncoated | Uncoated |
| A Coating (350 - 700 nm) | A Coating (350 - 700 nm) |
| AB Coating (400 - 1100 nm) | -AB Coating (400 - 1100 nm) |
| B Coating (650 - 1050 nm) | B Coating (650 - 1050 nm) |
| C Coating (1050 - 1700 nm) | C Coating (1050 - 1700 nm) |
| D Coating (1650 - 3000 nm) | - |
也提供定制镀膜。需要报价请联系技术支持techsupport-cn@thorlabs.com。
我们还提供N-BK7透镜套件。更多信息请点击这里查看。
| Quick Links to Other Spherical Singlets | ||||||
|---|---|---|---|---|---|---|
| Plano-Convex | Bi-Convex | Best Form | Plano-Concave | Bi-Concave | Positive Meniscus | Negative Meniscus |
平凸透镜，N-BK7，Ø2英寸，已安装(增透膜：350-700 nm)
| Item # | Optic Diameter |
Focal Length | Dioptera | Radius of Curvature | Center Thickness | Edge Thickness | Back Focal Lengthb | Working Distance | Housing | Reference Drawing |
|---|---|---|---|---|---|---|---|---|---|---|
| LA1401-A-MLc | 2" | 59.8 mm | +16.7 | 30.9 mm | 16.3 mm | 3.0 mm | 49.1 mm | 45.3 mm | SM2-Threaded Mount |  |
| LA1145-A-MLd | 2" | 75.0 mm | +13.3 | 38.6 mm | 12.5 mm | 3.0 mm | 66.7 mm | 62.9 mm | ||
| LA1050-A-MLd | 2" | 100.0 mm | +10.0 | 51.5 mm | 9.7 mm | 3.0 mm | 93.6 mm | 89.8 mm | ||
| LA1384-A-MLd | 2" | 125.0 mm | +8.0 | 64.4 mm | 8.2 mm | 3.0 mm | 119.6 mm | 115.8 mm | ||
| LA1417-A-MLd | 2" | 150.0 mm | +6.7 | 77.3 mm | 7.3 mm | 3.0 mm | 145.2 mm | 141.4 mm | ||
| LA1979-A-MLd | 2" | 200.0 mm | +5.0 | 103.0 mm | 6.2 mm | 3.0 mm | 195.9 mm | 192.1 mm | ||
| LA1301-A-MLc | 2" | 249.2 mm | +4.0 | 128.8 mm | 5.5 mm | 3.0 mm | 245.5 mm | 241.7 mm | ||
| LA1256-A-MLd | 2" | 300.0 mm | +3.3 | 154.5 mm | 5.1 mm | 3.0 mm | 296.6 mm | 292.8 mm | ||
| LA1725-A-MLd | 2" | 400.0 mm | +2.5 | 206.0 mm | 4.6 mm | 3.0 mm | 396.0 mm | 393.2 mm | ||
| LA1380-A-MLd | 2" | 500.0 mm | +2.0 | 257.5 mm | 4.3 mm | 3.0 mm | 497.2 mm | 493.4 mm | ||
| LA1727-A-MLd | 2" | 750.0 mm | +1.3 | 386.3 mm | 3.8 mm | 3.0 mm | 747.5 mm | 743.7 mm | ||
| LA1779-A-MLd | 2" | 1000.0 mm | +1.0 | 515.1 mm | 3.6 mm | 3.0 mm | 997.6 mm | 993.8 mm |
