The 20D620ER.1 is a ValuMax® Enhanced Aluminum Mirror with a diameter of 50.8 mm, thickness of 12.7 mm, and flatness of λ/10. By taking advantage of advanced polishing techniques and our high volume manufacturing, ValuMax® mirrors are truly cost effective. This family of mirrors boasts four standard metallic broadband coatings, covering the UV, visible, and IR; and are available in 50.8 mm (2.0 in.) diameter utilizing Borofloat® 33 substrates. This mirror has a 40-20 surface quality and is coated for 450-700 nm.

• 波长区域

  VIS

• 波长范围

  450-700 nm

• 镜片形状

  Round

• 镜片尺寸

  Ø50.8 mm

• 材料

  Borofloat® 33

• 镀膜类型

  Enhanced Aluminum

• 镀膜代码

  ER.1

• 表面质量

  40-20 scratch-dig

• 表面平面度

  λ/10 at 632.8 nm

• 入射角

  0-15°

• 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, 10 ns pulses , 20 Hz at 532 nm

• 厚度

  12.7 mm  

• 厚度公差

  ±0.25 mm

• 直径

  50.8 mm  

• 直径公差

  +0/-0.13 mm

• 倒角

  0.38–1.14 mm face width

• 倒角公差

  45° ±15°

• 清洁

  See How to Clean Optics

20 d620er。1是一个ValuMax®增强铝镜的直径50.8毫米,12.7毫米的厚度,平坦的λ/ 10。利用先进的抛光技术和高容量生产、ValuMax®镜子是真正的成本效益。这个系列的镜子拥有四个标准的金属宽带涂层，覆盖紫外线，可见光和红外;和在直径50.8毫米(2.0英寸)利用Borofloat®33基质。这面镜子的表面质量为40-20，涂层为450-700纳米。