Vari-focal polar alignment scope

Variable aperture transmissive substage microscope illuminator

Variable darkfield illumination system for micro and macro...

Variable epi-illumination interference attachment

Variable magnification finder

Variable magnification laser imaging system

Variable magnification microscope

Variable magnification optical system and image pickup apparatus

Variable magnification viewfinder

Variable magnification viewfinder optical system

Variable magnification viewfinder optical system with variable m

Variable optical aiming devices

Variable optical power telescopic sight with side focus control

Variable power finder and imaging apparatus

Variable power finder and imaging apparatus

Variable power finder and imaging apparatus

Variable power view finder

Variable power view finder having aspheric lens surfaces

Variable-inclination-angle lens-barrel for microscopes and...

Variable-powered binoculars