November 8, 2017In the installation process, if our installation method is incorrect, the optical lenses will be contaminated. Therefore, the previous operating procedures should be complied with. If a large number o...view
September 30, 20211. The difference between spherical and aspheric lenses: surface curvatureThe difference between spherical and aspheric lenses: a spherical lens refers to a constant curvature from the center to the e...view
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