The 20D620ER.4-PK is a pack of 10x 20D620ER.4 mirrors. The 20D620ER.4 is a ValuMax® Protected Gold Broadband Mirror 50.8 mm diameter, with a 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 650-20,000 nm.
波长区域
Broadband
波长范围
650-20000 nm
镜片形状
Round
镜片尺寸
Ø50.8 mm
材料
Borofloat® 33
镀膜类型
Protected Gold
镀膜代码
ER.4
表面质量
40-20 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>96%, Rmin>92% @ 650-1700 nmRavg>98%, Rmin>96% @ 1.7-20 µm
损伤阈值
0.5 J/cm², 10 ns pulses , 20 Hz at 1064 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
20 d620er。4-PK是一个10x20d620er的包。4镜子。20 d620er。4是一个ValuMax®保护黄金宽带镜子50.8毫米直径,厚度为12.7毫米,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650- 20000纳米。