Name: 5mm 直径，镀氟化镁膜，1/4波长表面精度，N-BK7窗口片
Brand: TECHSPEC
SKU: 45-574
Price: RMB 577.32

5mm 直径，镀氟化镁膜，1/4波长表面精度，N-BK7窗口片

产品编码 #45-574 6-10 工作日

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RMB 577.32

数量 1-5
RMB 577.32

数量 6+
RMB 462.74

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产品对比

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色散系数 (v_d):

64.17

倒角:

Protective as needed

有效孔径 (%):

有效孔径 CA（mm）:

4.50

直径 (mm):

5.00 +0.0/-0.25

厚度 (mm):

2.00 ±0.20

涂层:

MgF₂ (400-700nm)

涂层规格:

R_avg ≤1.75% @ 400 - 700nm

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 n_d:

1.516

努氏硬度 (kg/mm²) :

610

平行度（弧分）:

泊松比 :

0.206

基底: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

N-BK7

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 - 700

杨氏模量 (GPa) :

10 J/cm² @ 532nm, 10ns

合规性

RoHS 2015:

符合标准

Certificate of Conformance:

浏览

Reach 235:

符合标准

产品系列说明

5mm 到 150mm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: R_avg ≤ 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: R_avg≤ 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: R_abs≤ 0.25% @ 880nm R_avg≤ 1.25% @ 400 - 870nm R_avg≤ 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: R_avg≤ 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: R_abs ≤ 0.25% @ 532nm R_abs ≤ 0.25% @ 1064nm R_avg≤ 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: R_avg≤ 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: R_abs ≤ 1.5% @ 750 - 800nm R_abs ≤ 1.0% @ 800 - 1550nm R_avg≤ 0.7% @ 750 - 1550nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data