Hideo Kanno

Photographing lens switchable between manual focus and auto focus modes

Lens assembly for automatic focusing cameras

Lens barrel using a surface wave motor

Zoom lens barrel having a rotatable diaphragm mechanism and a mechanism for correcting an aperture diameter during zooming

Zoom lens barrel for moving lenses in the optical axis direction without increasing the length of the zoom lens barrel

Lens barrel with selectable manual and auto focus

Shading device and lens barrel

Lens hood for a lens barrel of an optical apparatus

Device for locking the operation ring of photographing lens

Zoom lens barrel with reversible telephoto lens movement