Variable optical attenuator using crystal wedges

Variable optical attenuator utilizing Faraday effect

Variable optical attenuator which applies a magnetic field to a

Variable optical attenuator which applies a magnetic field to a

Variable optical attenuator which applies a magnetic field...

Variable optical attenuator which applies a magnetic field...

Variable optical attenuator which applies a magnetic field...

Variable optical filter

Variable optical-property element

Variable reflectance automobile mirror

Variable reflectance automobile mirror

Variable reflectance mirror

Variable reflectance mirror

Variable reflectance mirror

Variable reflectance mirrors and windows

Variable reflectance motor vehicle mirror

Variable semiconductor all-optical buffer using slow light...

Variable semiconductor all-optical buffer using slow light...

Variable sensitivity compensation network for Mach-Zender optica

Variable spectral filter apparatus