Variable iris using charged opaque particles

Variable lens

Variable lenslet array

Variable light transmittance device

Variable mirror and information apparatus comprising...

Variable optical attenuator

Variable optical attenuator

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 element, a pickup apparatus having the...

Variable optical filter

Variable optical-property element

Variable reflectance automobile mirror

Variable reflectance automobile mirror

Variable reflectance mirror