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<title><![CDATA[EC21 Product Catalogs - refracting]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/refracting--271303/1/refracting.html]]></link><item>
<title><![CDATA[Zinc Selenide Lens]]></title><link><![CDATA[https://hsgdoptic.en.ec21.com/Zinc-Selenide-Lens--12004331_12019604.html]]></link><description><![CDATA[refractive index uniformity: Contributes to the high quality performance of ZnSe lenses.
Chemically Inert: This makes ZnSe particularly stable in a variety of environments.
High Damage Threshold: All]]></description><pubDate><![CDATA[20241022]]></pubDate></item>
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<title><![CDATA[MGF2 Single Crystal Window]]></title><link><![CDATA[https://ruiqioptics.en.ec21.com/MGF2-Single-Crystal-Window--11974301_11974308.html]]></link><description><![CDATA[MgF2 optical window have a good light transmittance and low refractive index from 0.12um to 7.5um, good performance on UV, VIS and IR area, widely used on optics, lasers, infrared field.
Substrate
Mg]]></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://xinxingliangoptics12.en.ec21.com/Spherical-Opical-Lens-Rod-Lens--11974236_11974247.html]]></link><description><![CDATA[refractive indices, chromatic aberration with respect to two selected wavelengths has been corrected. The lenses have been corrected for on-axis spherical aberration as well. Achromatic doublets are ]]></description><pubDate><![CDATA[20240724]]></pubDate></item>
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<title><![CDATA[Meniscus Lenses]]></title><link><![CDATA[https://clzoptics.en.ec21.com/Meniscus-Lenses--7138952_8461830.html]]></link><description><![CDATA[refractive index, curvature and radius.
CLZ Manufacturing Ranges
Materials: Over 120 visible materials, Fused Silica
Sizes: 15mm to 150mm
Surface Accuracy: 1/10λ
Surface Quality: 80/50 to 10/5
Radii]]></description><pubDate><![CDATA[20240403]]></pubDate></item>
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<title><![CDATA[HDX Lens]]></title><link><![CDATA[https://interojo.en.ec21.com/HDX-Lens--408726_2125037.html]]></link><description><![CDATA[refractive cylinder up to -1.00 diopter, enhancing the overall vision without the need for a toric lens.
Parameter 
Base Curves : 8.6 mm
Diameter : 14.0 mm
Water Content : 38% , 43%
Power : +5.00 ï]]></description><pubDate><![CDATA[20091110]]></pubDate></item>
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<title><![CDATA[Concave Lens]]></title><link><![CDATA[https://jiffoptics.en.ec21.com/Concave-Lens--5677474_5677475.html]]></link><description><![CDATA[Optical bi Concave Lens
Concave lens that possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave len]]></description><pubDate><![CDATA[20110729]]></pubDate></item>
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<title><![CDATA[2024 Free Sample/Inquiry for Drawings 3m-5A Mc 500mm F/8 Mto Mirror-Meniscus Soviet Lens Multilayer]]></title><link><![CDATA[https://oplens68.en.ec21.com/2024-Free-Sample-Inquiry-for--11609135_11837393.html]]></link><description><![CDATA[refractive index of 1.428 at 1.064 µm and is mechanically and environmentally stable. CaF2 is ideal for any demanding applications where its high damage threshold, low fluorescence, and high homogen]]></description><pubDate><![CDATA[20230823]]></pubDate></item>
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<title><![CDATA[Optical Glass]]></title><link><![CDATA[https://aohonggaugeglass.en.ec21.com/Optical-Glass--11850290_11850300.html]]></link><description><![CDATA[can reach ±0.1% in precision applications.Centration: Less than 3 minutes of arc.Clear Aperture: Over 90%.Beveling: Below 0.2 × 45° or as per requirements.Refractive Index: Between 1.4 and 1.6.
]]></description><pubDate><![CDATA[20231004]]></pubDate></item>
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<title><![CDATA[Germanium Window, Silicon Window ,IR Window]]></title><link><![CDATA[https://ruikeoptics000.en.ec21.com/Germanium-Window-Silicon-Window--11732883_11874188.html]]></link><description><![CDATA[Ge Window 
Ge germanium window has a high refractive
index, the application range of 2-15 microns, visible light does not penetrate,
uncoated products have low transmittance, generally need to be mad]]></description><pubDate><![CDATA[20231209]]></pubDate></item>

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