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<title><![CDATA[EC21 Product Catalogs - bies]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/bies--271303/1/bies.html]]></link><item>
<title><![CDATA[Basson High-precision Bi-telecentric Lens STS44 Series]]></title><link><![CDATA[https://basson.en.ec21.com/Basson-High-precision-Bi-telecentric--11971472_11973546.html]]></link><description><![CDATA[With high telecentricity and low distortion, BASSON bi-telecentric lenses are mainly applied to precision measurement and high-precision visual positioning fields.BASSON STS44 Series Standard Bi-te]]></description><pubDate><![CDATA[20240723]]></pubDate></item>
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<title><![CDATA[Bi-Convex Lenses]]></title><link><![CDATA[https://clzoptics.en.ec21.com/Bi-Convex-Lenses--7138952_7138981.html]]></link><description><![CDATA[Bi-Convex Lenses
Fused Silica Precision Lenses
for Solid State Laser applications
UV Fused Silica Plano-Convex Lenses
is a prime choice for lenses in use with Solid State Lasers due to its synthetic ]]></description><pubDate><![CDATA[20240403]]></pubDate></item>
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<title><![CDATA[Bi Concave Lens]]></title><link><![CDATA[https://jiffoptics.en.ec21.com/Bi-Concave-Lens--5677474_5734760.html]]></link><description><![CDATA[Positive Spherical Lenses ãMaterial:BK7 or schott material Diameter:5mm to 300mm ãFocal Length Tolerance :&amp;plusmn;1% ãDiameter Tolerance :+0.0/-0.1mm ãThickness Tolerance :&amp;plusmn]]></description><pubDate><![CDATA[20110816]]></pubDate></item>
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<title><![CDATA[Plano Convex Concave Lenses  Bi Convex/Concave Lenses  Meniscus Lenses  Achromatic  Lens AR Coating]]></title><link><![CDATA[https://kelly258.en.ec21.com/Plano-Convex-Concave-Lenses--10746701_10746712.html]]></link><description><![CDATA[Manufacture Specifications
Diameter
0.1mm to 600mm.
Diameter Tolerance
+0.00/-0.1 or customer size. 
Material 
N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,Corning 7980
Surface Quality
80-]]></description><pubDate><![CDATA[20230922]]></pubDate></item>
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<title><![CDATA[Double Concave Lens]]></title><link><![CDATA[https://hsgdoptic.en.ec21.com/Double-Concave-Lens--12004331_12019606.html]]></link><description><![CDATA[https://www.hsgd-optics.com/optical-spherical-lens/double-concave-lens.html
Double Concave Lens
Double concave lens
are bi-concave lenses with concave surfaces on both sides. Double concave lens are ]]></description><pubDate><![CDATA[20241022]]></pubDate></item>
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<title><![CDATA[Spherical Opical Lens,Rod Lens, Sapphire Optical Lens, Cylindrical Lens,Cemented Lens,]]></title><link><![CDATA[https://xinxingliangoptics12.en.ec21.com/Spherical-Opical-Lens-Rod-Lens--11974236_11974247.html]]></link><description><![CDATA[Bi-convex Lenses, Bi-Concave Lenses, Meniscus Lenses, Spherical Mirrors and Achromatic Doublets.
Here is Catalog of us Achromatic Lens:
art Number
Effective Focal Length
Back Focal Length
Diameter
Ce]]></description><pubDate><![CDATA[20240724]]></pubDate></item>
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<title><![CDATA[Spherical Opical Lens,Rod Lens, Sapphire Optical Lens, Cylindrical Lens,Cemented Lens,]]></title><link><![CDATA[https://valinar.en.ec21.com/Spherical-Opical-Lens-Rod-Lens--11909337_11909340.html]]></link><description><![CDATA[Co.,Ltd manufactures all kind of shperical optical lens as well as sapphire optics , products as Bi-concave lens, Bi-convex lens, plano-convex lens , plano-concave lens, meniscus lens,rod lens, etc
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<title><![CDATA[Optical Crystal CAF2 Lens CAF2 Window]]></title><link><![CDATA[https://ruikeoptics000.en.ec21.com/Optical-Crystal-CAF2-Lens-CAF2--11732883_11874182.html]]></link><description><![CDATA[Bi Convex Lens 
Material:BK7 Fused Silica CaF2 MgF2
Sapphire Germanium Silicon ZnSe ZnS.
Diameter:0.5-600mm
Dia Tolerance:+/-0.02mm
Thickness Tolerance:+/-0.01mm
Centeration&lt;30 arcmin
Flatness&lt;1/20 l]]></description><pubDate><![CDATA[20231209]]></pubDate></item>
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<title><![CDATA[Double Concave Lens]]></title><link><![CDATA[https://daisydong147.en.ec21.com/Double-Concave-Lens--10848859_10849633.html]]></link><description><![CDATA[A double-concave lens is compose of two concave surface, has a negative focal length and are best used to diverge a converging beam. Similar to a plano-concave lens, a bi-concave lens can diverge a c]]></description><pubDate><![CDATA[20181108]]></pubDate></item>

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