Thorlabs 索雷博 LA1727-ML 平凸透镜
Thorlabs 索雷博 LA1727-ML 平凸透镜 LA1727-ML - 平凸透镜，N-BK7，Ø2英寸，SM2螺纹外壳，f=750 mm，未镀膜 平凸透镜，N-BK7，已安装(未镀膜) N-BK7 Plano-Convex Spherical Singlets Lens Shape Plano-Convex Substrate Material N-BK7 (Grade A)a Wavelength Range 350 nm - 2.0 μm (Uncoated) 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 Abbe Number vd = 64.17 Centration < 3 arcmin Clear Aperture Ø1/2" Lenses: >Ø11.05 mmØ1" Lenses: >Ø22.86 mmØ1.5" Lenses: ...
分类：
货号：
LA1727-ML
描述
Thorlabs 索雷博 LA1727-ML 平凸透镜
LA1727-ML - 平凸透镜，N-BK7，Ø2英寸，SM2螺纹外壳，f=750 mm，未镀膜
平凸透镜，N-BK7，已安装(未镀膜)
| N-BK7 Plano-Convex Spherical Singlets | |
|---|---|
| Lens Shape | Plano-Convex |
| Substrate Material | N-BK7 (Grade A)a |
| Wavelength Range | 350 nm - 2.0 μm (Uncoated) |
| 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 |
| 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
- 波长范围：350 nm - 2.0 μm(未镀膜)
- 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螺纹的透镜元件上，带卡环
- 在整个可见和红外波段范围内有极佳的透过率
这些未镀膜的平凸透镜由符合RoHS标准的N-BK7材料制造。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。
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。
虽然本页面的的N-BK7平凸透镜都是未镀膜的透镜，但我们也提供从五种增透膜(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。这些透镜的页面链接请参见下方的选择指南表格。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(未镀膜)
| Item # | Optic Diameter |
Focal Length | Dioptera | Radius of Curvature | Center Thickness | Edge Thickness | Back Focal Lengthb | Working Distance | Housing | Reference Drawing |
|---|---|---|---|---|---|---|---|---|---|---|
| LA1401-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-MLd | 2" | 75.0 mm | +13.3 | 38.6 mm | 12.5 mm | 3.0 mm | 66.7 mm | 62.9 mm | ||
| LA1050-MLd | 2" | 100.0 mm | +10.0 | 51.5 mm | 9.7 mm | 3.0 mm | 93.6 mm | 89.8 mm | ||
| LA1384-MLd | 2" | 125.0 mm | +8.0 | 64.4 mm | 8.2 mm | 3.0 mm | 119.6 mm | 115.8 mm | ||
| LA1417-MLd | 2" | 150.0 mm | +6.7 | 77.3 mm | 7.3 mm | 3.0 mm | 145.2 mm | 141.4 mm | ||
| LA1979-MLd | 2" | 200.0 mm | +5.0 | 103.0 mm | 6.2 mm | 3.0 mm | 195.9 mm | 192.1 mm | ||
| LA1301-MLc | 2" | 249.2 mm | +4.0 | 128.8 mm | 5.5 mm | 3.0 mm | 245.5 mm | 241.7 mm | ||
| LA1256-MLd | 2" | 300.0 mm | +3.3 | 154.5 mm | 5.1 mm | 3.0 mm | 296.6 mm | 292.8 mm | ||
| LA1725-MLd | 2" | 400.0 mm | +2.5 | 206.0 mm | 4.6 mm | 3.0 mm | 396.0 mm | 393.2 mm | ||
| LA1380-MLd | 2" | 500.0 mm | +2.0 | 257.5 mm | 4.3 mm | 3.0 mm | 497.2 mm | 493.4 mm | ||
| LA1727-MLd | 2" | 750.0 mm | +1.3 | 386.3 mm | 3.8 mm | 3.0 mm | 747.5 mm | 743.7 mm | ||
| LA1779-MLd | 2" | 1000.0 mm | +1.0 | 515.1 mm | 3.6 mm | 3.0 mm | 997.6 mm | 993.8 mm |
