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Multispectral Zinc Sulfide Spherical lens

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Multispectral Zinc Sulfide Spherical lens

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ZnSe & ZnS
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Product description
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CVD Zinc Sulfide(CLEARTRAN) is the low cost alternative for infrared windows, domes and optical elements.

With a fracture strength double that of Zinc Selenide(ZnSe) and high hardness, Multispectral Zinc sulfide(ZnS) has been used successfully in many military applications requiring mechanical resistance to hostile environments.
ZnS(CLEARTRAN) is a form of CVD Zinc Sulfide material that is modified by a post-deposition hot isostatic process. This process removes zinc hydrides from the crystal lattice, normalizes crystal structure and purifies the material, all contributing to single crystal-like transmittance in the visible through far infrared ranges (0.35 -14 microns). 
With its low absorption and scatter throughout its broad transmitting range and high optical quality, it is particularly well-suited for multi-spectral applications that require a single aperture for beam path for several wavebands.
CVD Zinc Sulfide and Cleartran are chemically inert, non-hygroscopic, highly pure, theoretically dense and easily machined. 
Custom diameters, rectangles, CNC-profiled blanks, generated lens blanks, prisms and near-net shape domes can be made to your specifications.     

Physicochemical property:

 

CVD Zinc sulfide

Multispectral CVD Zinc sulfide

Density(g.cm-3@ 298k)

4.09

4.09

Specific resistance(Ω.Cm)

~1012

~1013

Melting point(℃)

1827

 

Chemical purity(%)

99.9996

99.9996

Coefficient of thermal expansion(1/k)

6.6* 10-6@273k

6.3* 10-6@273k

 

7.3* 10-6@373k

7.0* 10-6@373k

Heat conductivity(J/k.m.s)

16.7@298k

27.2@298k

Calorific capacity(J/g.k)

0.469@298k

0.515@298k

knoop Hardness(kg/mm2)

200-235

160

Bending strength(Mpa)

103

 

Young modulus(Gpa)

74.5

74.5

Poisson ratio

0.29

0.28

Optical property:

 

CVD Zinc sulfide

Multispectral CVD Zinc sulfide

Wave length of transmittance scope

1000nm---14000nm

370nm—14000nm

Inhomogeneity of refractive indexΔn/n

<7.3* 10-4@10600nm

<0.2* 10-4@632.8nm

Absorption coefficient(1/cm)

0.2  @ 10600nm

0.2 @10600nm

Thermo-optical coeffecient dn/dt(1/k,298-358k)

4.6* 10-5@1150nm

5.43* 10-5@632.8nm

4.3* 10-5@3390nm

4.21* 10-5@1150nm

4.1* 10-5@10600nm

3.87* 10-5@3390nm

 

Transmittance Curve:

Keyword:
 Zinc sulfide
We could not find any corresponding parameters, please add them to the properties table

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 Luoyang Dingming Optical Technology Co.,Ltd.

Address:Hangong Road, Xigong Industrial Park, 
                   Xigong District, Luoyang HeNan,China

Email:lydm@dm-optical.com

Tel:+86-379-62110001

Fax:+86-379-62112223

 

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