K9 revêtement supérieur de caméra de guide d'hémisphère de lentille optique de ZnSe de 3,98 pouces
Feb 28, 2022
186 vues
#ZnSe optical lens
#3.98in optical lens
#K9 convex glass lens
Optical Mini Glass Bk7 Dome Lens K9 od3.98 inch Hemisphere Guide Top Camera Coating Dome Lens For Video Camera A single lens used to form an image will always show some chromatic aberration, that is variation of focal length with wavelength. Achromatic doublet lenses correct for this as they are constructed from two different glass types and designed to remove first order chromatic aberration. Generally spherical aberration is reduced at the same time. Achromatic doublets are
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