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Линза ZnSe D18 F-50
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Линза ZnSe D18 F-50

Цена: 4 500 руб. 

Обслуживание оптики

 
Standards
Effective Focal Length (EFL) Tolerance
±2%
Dimensional Tolerance
Diameter: +0.000”-0.005”
Thickness: ±0.010”
Edge Thickness Variation (ETV)
<= 0.002”
Clear Aperture (polished)
90% of diameter
Surface Figure at 0.63µm
Varies depending upon radius
Scratch-Dig
20-10
AR Coating Reflectivity per Surface at 10.6µm
<= 0.20%

 

Свойства материала

Оптические свойства

 

Bulk Absorption Coefficient @ 10.6µm

<= 0.0005 cm-1

Temperature Change of Refractive Index @ 10.6µm

61 x 10-6/°C

Refractive Index Inhomogeneity @ 632.8 nm

< 3 x 10-6


Thermal Properties

 

Thermal Conductivity @ 20° C

0.18 W/cm/°C

Specific Heat

0.356 J/g/°C

Linear Expansion Coefficient @ 20° C

7.57 x 10-6/°C


Mechanical Properties

 

Young’s Modulus

67.2 GPa (9.75 x 106 psi)

Rupture Modulus

55.1 MPa (8,000 psi)

Knoop Hardness

105-120 kg/mm2

Density

5.27 g/cm3

Poisson’s Ratio

0.28


 

 

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