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<title><![CDATA[EC21 Product Catalogs - flat roof]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/flat-roof--271308/1/flat roof.html]]></link><item>
<title><![CDATA[Right Angle Prism]]></title><link><![CDATA[https://ruiqioptics.en.ec21.com/Right-Angle-Prism--11974301_12019799.html]]></link><description><![CDATA[flatness, angle, dimension, transmitted wavefront, clear aperture, surface quality, and sharp roof. Our product offerings include a diverse range of prisms such as right angle prisms, wedged prism, b]]></description><pubDate><![CDATA[20241022]]></pubDate></item>
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<title><![CDATA[High Quality BK7 K9l Glass Half Penta Prism for Image Observation System]]></title><link><![CDATA[https://june20210728.en.ec21.com/High-Quality-BK7-K9l-Glass--11547959_11548572.html]]></link><description><![CDATA[Roof Prism
Paul prism 
Right angle prism 
Rhomboid prism 
Penta and half penta prism 
Equilateral prism 
Corner cube prism 
Wedge prism
Dove prism 
FAQ Q1:Are you a factory?A: Yes, we&apos;re a profession]]></description><pubDate><![CDATA[20230922]]></pubDate></item>
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<title><![CDATA[Lehmann Prism BK7 Stock 25.4mm]]></title><link><![CDATA[https://ruikeoptics000.en.ec21.com/Lehmann-Prism-BK7-Stock-25.4mm--11732883_11874178.html]]></link><description><![CDATA[Lehmann Prism is a type of roof prism. The
incident beam acts as a offset, and the image is reversed left and right and
upside down (i.e. rotated 180 degrees).
Specifications:
Material
Optical
glass
]]></description><pubDate><![CDATA[20231209]]></pubDate></item>
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<title><![CDATA[Optical Glass Quartz, BK7 K9  Porro Prisms for Telescope  AR HR MGF2 Aluminum  Coating]]></title><link><![CDATA[https://kelly258.en.ec21.com/Optical-Glass-Quartz-BK7--10746719_10844519.html]]></link><description><![CDATA[roof, by total internal reflection twice from the roof, the beam exits again through the large face
Specifications: 
Material:Quartz, BK7 K9
Size:1mm to 200mm
Surface Quality:20/10
Flatness:1/10lambd]]></description><pubDate><![CDATA[20230922]]></pubDate></item>
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<title><![CDATA[Optical Prism]]></title><link><![CDATA[https://shelly0119.en.ec21.com/Optical-Prism--11439118_11439144.html]]></link><description><![CDATA[Roof Prism are also available upon request.
Penta PrismsPenta prism can deviate an incident beam without inverting or reversing to 90.The deviation angle of 90 is independent of any rotation of the p]]></description><pubDate><![CDATA[20210902]]></pubDate></item>

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