The SPC034AR.14 Fused Silica Plano-Concave Lens is a 430 to 700 nm antireflection coated 25.4 mm diameter fused silica plano-concave lens with an effective focal length of -50 mm. It is designed to meet the demanding requirements of laser electro-optic applications, Newport's UV grade fused silica precision plano-concave lenses are polished to tight tolerances using master test plates to ensure minimum wavefront distortion. UV grade fused silica will not fluoresce under UV light and is resistant to radiation. And for high-energy applications, the extreme purity of fused silica eliminates microscopic defect sites that could lead to laser damage.

• 透镜形状

  Plano-Concave

• 直径

  25.4 mm

• 透镜材料

  UV Fused Silica

• 增透膜

  430-700 nm

• 有效焦距

  -50 mm  

• 表面质量

  20-10 scratch-dig

• 表面精度，不规则性

  λ/4

• 表面精度（光圈）

  1.5 λ  

• 表面平面度

  λ/4

• 后焦距

  -51.71 mm  

• F/＃

  -2  

• 对中

  ≤3 arc min

• 主平面 2

  -1.71 mm  

• 曲率半径

  -22.950 mm  

• 倒角

  0–0.8 mm face width

• 倒角公差

  45° ±15°, typical

• 直径公差

  +0/-0.1 mm

• 焦距公差

  ±1 %

• 中心厚度公差

  ±0.1 mm

• 边缘厚度

  5.55 mm  

• 通光孔径

  ≥central 90% of diameter

• 镀膜类型

  Visible Multilayer

• 镀膜代码

  AR.14

• 清洁

  See How to Clean Optics

• 损伤阈值

  7.5 J/cm2, 10 ns pulses, 10 Hz at 532 nm

SPC034AR。14 .熔融二氧化硅平凹透镜是一种430 ~ 700纳米的防反射涂层，直径25.4 mm，有效焦距- 50mm。为满足激光电光应用的要求，纽波特公司的UV级熔融石英精密平凹透镜采用主试片抛光至严格公差，以确保最小的波前畸变。紫外级熔融石英在紫外光下不会发出荧光，并且抗辐射。对于高能应用，熔融二氧化硅的极高纯度消除了可能导致激光损伤的微观缺陷位点。