Focusing apparatus of a telescopic lens system
Focusing device for digital camera module
Focusing lens control apparatus with automatic and manual focus
Focusing mechanism for a vision detector
Focusing method for a zoom lens system
Focusing method for zoom lens
Focusing method selectable zoom optical system
Focusing systems for perspective dimensional measurements...
Focusing unit and optical device
Four-group zoom lens
Four-group zoom lens
Four-group zoom lens
Four-unit zoom lens system having a high zoom ratio