The 13E20AL.2 Broadband Metallic Elliptical Mirror is an excellent general purpose, broadband reflector. This 1.30 inch (33.02 mm) minor axis, 1.838 inch (46.70 mm) major axis, elliptical mirror is made from a 9.37 mm thick Borofloat® 33 substrate. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. The AL.2 UV enhanced aluminum coating is a durable, broadband UV reflector with average reflectivity greater than 90% from 250–600 nm. The aluminum film is overcoated with UV transparent magnesium fluoride to prevent oxidation of the metal. This mirror has a λ/10 surface flatness and a 15-5 surface quality.

• 波长区域

  UV

• 波长范围

  250-600 nm

• 镜片形状

  Elliptical

• 镜片尺寸

  46.7 x 33.0 mm

• 材料

  Borofloat® 33

• 镀膜类型

  UV Enhanced Aluminum

• 镀膜代码

  AL.2

• 表面质量

  15-5 scratch-dig

• 表面平面度

  λ/10 at 632.8 nm

• 入射角

  0-45°

• 通光孔径

  ≥central 80% of diameter

• S2 表面

  Ground

• 反射率

  Ravg>90% @ 250-600 nm

• 损伤阈值

  2 J/cm² with 10 ns pulses at 355 nm, 20Hz

• 厚度

  9.4 mm  

• 厚度公差

  ±0.25 mm

• 倒角

  0.38–1.14 mm face width

• 倒角公差

  45° ±15°

• 清洁

  See How to Clean Optics

13 e20al。2宽带金属椭圆镜是一种优良的通用宽带反射镜。这1.30英寸(33.02毫米)小轴,1.838英寸(46.70毫米)主要的轴,椭圆镜子是用9.37毫米厚Borofloat®33衬底。Borofloat®33有低的热膨胀和是一个很好的衬底对于大多数应用程序。AL.2 UV增强铝涂层是一种耐用的宽带UV反射器，平均反射率在250-600 nm范围内大于90%。铝膜上覆盖了紫外透明氟化镁，防止金属氧化。这个镜子λ/今天比赛10表面平面度和表面质量。