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Collimator Variable Optical Attenuator
    Publish time 2020-07-13 16:28    
The collimator variable optical attenuator is an useful attenuation tool, which
the attenuation value can be adjustable by mechanical adjustment. It employs
the principle of light shading between the two collimnators to control the
attenuation value. It features wide attenuation range, high precision, low
insertion loss and compact size.