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125mm Dia., 8mm Thick, VIS-NIR Coated λ/4 N-BK7 Window

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产品编码 #26-676 新产品 6-10 工作日
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RMB 5,288.40
数量 1-5
RMB 5,288.40
数量 6+
RMB 4,230.72
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色散系数 (vd):
64.17
倒角:
Protective as needed
有效孔径 (%):
90
有效孔径 CA(mm):
112.50
直径 (mm):
125.00 +0.0/-0.25
厚度 (mm):
8.00 ±0.20
涂层:
VIS-NIR (400-1000nm)
涂层规格:
Rabs ≤0.25% @ 880nm
Ravg ≤1.25% @ 400 - 870 nm
Ravg ≤1.25% @ 890 - 1000nm
热膨胀系数 CTE (10-6/°C):
7.1 (-30 to +70°C)
8.3 (+20 to +300°C)
密度 (g/cm3):
2.51
边缘:
Fine Ground
折射率 nd:
1.516
努氏硬度 (kg/mm2) :
610
平行度(弧分):
<1
泊松比 :
0.206
基底: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
表面平整度 (P-V):
λ/4
表面质量:
60-40
类型:
Protective Window
波长范围 (nm):
400 - 1000
杨氏模量 (GPa) :
82
注意 :
Surface Flatness is specified per inch
Damage Threshold, Reference: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
5 J/cm2 @ 532nm, 10ns

合规性

RoHS 2015:
Certificate of Conformance:
Reach 235:

产品系列说明

  • 2mm 到 200mm 尺寸的圆形和方形版本可选
  • 7 种宽带增透镀膜可选
  • 业内最全标准N-Bk7 窗口片可选
  • 另有 超薄 N-BK7 窗口片可供选择

TECHSPEC® λ/4 N-BK7精密窗口片非常适合用于工业及低功率激光应用。其高精度设计使得窗口片甚少发生波束畸变与散射的情况。宽带镀膜选项让可见光和近红外光谱产品方面的精密窗口片选择变得更为广泛。

请注意:  该产品系列的新产品可以用透射波前畸变(TWD)规格而不是表面平整度来指定。关于这两种规格之间的区别的更多信息,请参见我们的应用说明: 了解光学窗口片。 

技术信息

N-BK7

Typical transmission of a 3mm thick, uncoated N-BK7 window across the UV - NIR spectra.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with MgF2 (400-700nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg ≤ 1.75% @ 400 - 700nm (N-BK7)

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with VIS-EXT (350-700nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg ≤ 0.5% @ 350 - 700nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with VIS-NIR (400-1000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Rabs ≤ 0.25% @ 880nm
Ravg ≤ 1.25% @ 400 - 870nm
Ravg ≤ 1.25% @ 890 - 1000nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with VIS 0° (425-675nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg ≤ 0.4% @ 425 - 675nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with YAG-BBAR (500-1100nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Rabs ≤ 0.25% @ 532nm
Rabs ≤ 0.25% @ 1064nm
Ravg ≤ 1.0% @ 500 - 1100nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with NIR I (600 - 1050nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg ≤ 0.5% @ 600 - 1050nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick N-BK7 window with NIR II (750 - 1550nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Rabs ≤ 1.5% @ 750 - 800nm
Rabs ≤ 1.0% @ 800 - 1550nm
Ravg ≤ 0.7% @ 750 - 1550nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

 
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