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<title><![CDATA[EC21 Product Catalogs - bk7 lense]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/bk7_lense--271308/1/bk7 lense.html]]></link><item>
<title><![CDATA[Optical BK7 Cylindrical Lenses]]></title><link><![CDATA[https://ruikeoptics000.en.ec21.com/Optical_BK7_Cylindrical_Lenses--11732883_11874179.html]]></link><description><![CDATA[lenses have a
negative focal length consisting of one plane and one concave cylinder.
Specifications:
Structure:Cylindrical Lens
Material: Optical
Glass,BK7,H-K9L,UVFS,Germanium,Silicon,CaF2,ZnSe,ZnS]]></description><pubDate><![CDATA[20231209]]></pubDate></item>

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