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we supply optical lens for optical instrument.main optical lenses include optical cylindrical lens,optical spherical lens,optical aspherical lens,optical prism,optical filter lens,optical grating,optical windows,optical mirror,optical components,camera lens,fisheye lens,wide angle lens,telephoto lens,projector lens,adapter ring,adapter tube,custom lens,oem etc..
specification of our optical lens as follow:
*material bk7 or other optical materials
*dimension tolerance +0.0 -- -0.1mm
*center thickness +/-0.1mm
*focal length tolerance+/-1%
*surface quality:20/10
*surface figure lambda/2 at 633nm on plano side
*clear aperture >90%
*chamfer 0.25mm at 45 degree typical
*coating optional
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