The 13E20ER.1 Broadband Metallic Elliptical Mirror is an excellent general purpose, broadband reflectors. 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 ER.1 enhanced aluminum coating may be used wherever a broadband visible and near infrared reflector is needed. A multilayer dielectric stack deposited over the aluminum film boosts reflectance and improves the durability of the coating. Average reflectivity is greater than 93% from 450–700 nm. This mirror has a λ/10 surface flatness and a 15-5 surface quality.

• 波长区域

  VIS

• 波长范围

  450-700 nm

• 镜片形状

  Elliptical

• 镜片尺寸

  46.7 x 33.0 mm

• 材料

  Borofloat® 33

• 镀膜类型

  Enhanced Aluminum

• 镀膜代码

  ER.1

• 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>93%, Rmin>90 % @ 450-700 nm

• 损伤阈值

  0.5 J/cm² with 10 ns pulses at 532 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 e20。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。ER.1增强铝涂层可用于需要宽带可见和近红外反射器的任何地方。沉积在铝膜上的多层介质堆叠可以提高反射率，提高涂层的耐久性。在450-700 nm范围内，平均反射率大于93%。这个镜子λ/今天比赛10表面平面度和表面质量。