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Stock #37-002
17 049 ₽
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Характеристики
Diameter (mm)
—
25.00 +0.0/-0.25
Coating
—
VIS-NIR (400-1000nm)
Coating Specification
—
Rabs ≤0.25% @ 880nmRavg ≤1.25% @ 400 - 870 nmRavg ≤1.25% @ 890 - 1000nm
Surface Quality
—
60-40
Bevel
—
Protective as needed
Clear Aperture CA (mm)
—
22.50
Все характеристики
Цена действительна только для интернет-магазина и может отличаться от цен в розничных магазинах
Learn More
Product Family Description
- λ/4 Surface Flatness or TWD
- Broadband Anti-Reflection Coating Options Available
- Custom Coatings and Sizes Available for Volume OEM Quantities
- Also Available with Laser Line V-Coats
TECHSPEC® λ/4 N-BK7 Precision Windows are ideally suited for industrial and low power laser applications. The high tolerance design yields minimal beam distortion and scatter. Broadband coating options extend the range of these precision windows through the visible and near-infrared spectra.
Note: New additions to this product family may be specified with a transmitted wavefront distortion (TWD) specification instead of a surface flatness. For more information on the difference between these two specifications, see our application note on Understanding Optical Windows.
Документы
eDrawing: eprt
5,5 кб
Curve (xslx)
75 кб
IGES
20,8 кб
Curve (pdf)
103,6 кб
PDF Drawing
83,3 кб
STEP: step
11,7 кб
Diameter (mm)
25.00 +0.0/-0.25
Coating
VIS-NIR (400-1000nm)
Coating Specification
Rabs ≤0.25% @ 880nmRavg ≤1.25% @ 400 - 870 nmRavg ≤1.25% @ 890 - 1000nm
Surface Quality
60-40
Bevel
Protective as needed
Clear Aperture CA (mm)
22.50
Type
Protective Window
Typical Energy Density Limit
5 J/cm2 @ 532nm, 10ns
Wavelength Range (nm)
400 - 1000
RoHS 2015
Compliant
Reach 224
Compliant
Abbe Number (vd)
64.17
Clear Aperture (%)
90
Thickness (mm)
2.00 ±0.20
Coefficient of Thermal Expansion CTE (10-6/°C)
7.1 (-30 to +70°C)8.3 (+20 to +300°C)
Density (g/cm3)
2.51
Edges
Fine Ground
Index of Refraction nd
1.516
Knoop Hardness (kg/mm2)
610
Poisson's Ratio
0.206
Substrate:Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Surface Flatness
λ/4
Young's Modulus (GPa)
82
Parallelism (arcmin)
<1
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