25.4mm Dia., 4mm Thick, Uncoated, ISP Optics Lithium Fluoride (LiF) Window | LF-W-25-4

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下載產品資料
Abbe Number (vd):
97.29
Axis Orientation:
Random
Bevel:
Protective as needed
Clear Aperture (%):
90
Clear Aperture CA (mm):
21.59
Diameter (mm):
25.40 +0.00/-0.13
Thickness (mm):
4.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
37
Density (g/cm3):
2.64
Edges:
Fine Ground
Index of Refraction nd:
1.392
Knoop Hardness (kg/mm2):
102
Parallelism (arcmin):
<3
Poisson's Ratio:
0.33
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Lithium Fluoride (LiF)
Surface Flatness (P-V):
2λ @ 632.8nm
Surface Quality:
60-40
Type:
Protective Window
Wavelength Range (nm):
150 - 6000
Young's Modulus (GPa):
64.97
Type of Window:
Crystal
Model Number:
LF-W-25-4

Regulatory Compliance

Certificate of Conformance:

產品系列說明

  • 優異的真空紫外(VUV)穿透率
  • 150nm - 6μm範圍高穿透率
  • 低折射率

ISP Optics 公司的氟化鋰(LiF)窗鏡在 150 - 200nm 的真空紫外(VUV)波段以及在氫萊曼-α譜線(121nm)擁有出色的穿透率。除了在紫外波段擁有高穿透率外,這些窗鏡在可見光及 6µm 以下的紅外波段的穿透率也非常出眾。氟化鋰具有較低的折射率,因此氟化鋰窗鏡可在無抗反射 (AR) 鍍膜的情況下使用。ISP Optics 氟化鋰窗鏡 (LiF) 非常適合用作光譜應用中的紫外穿透窗鏡、X 射線光譜儀中的繞射元件或熱成像應用中的紅外窗鏡。

請注意: 氟化鋰對熱衝擊很敏感,溫度高於 400°C 時會受到大氣中水分的侵蝕。

 
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