Variable-magnification image-forming optical system

Variable-magnification optical system and image taking...

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-size sector-shaped aperture mask and method of...

Variator optical system

Varifocal lens

Varifocal lens

Varifocal lens

Varifocal lens and method of manufacturing the same

Varifocal lens assembly

Varifocal lens barrel and a lens drive mechanism

Varifocal lens system