Variable-focus liquid lens

Variable-focus liquid lens

Variable-gain gain-clamped optical amplifiers

Variable-geometry liquid-filled lens apparatus and method for co

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

Variable-length line projecting optics

Variable-magnification image-forming optical system

Variable-magnification optical system and image taking...

Variable-magnification optical system capable of image stabiliza

Variable-magnification telecentric optical system

Variable-optical-property element

Variable-power eyepiece optical system

Variable-power optical system and imaging apparatus

Variable-power optical system and imaging device

Variable-power optical system, image pickup device, and...

Variable-power optical system, image pickup device, and...

Variable-power optical system, projection optical system,...

Variable-power type observational optical system and a variable-

Variable-powered binoculars

Variable-profile optical device including variable profile...