Focusing lens position detection apparatus and an auto-focus sur
Focusing lens system for an optical head assembly
Focusing mechanism for a vision detector
Focusing mechanism using a thin diaphragm
Focusing method for a zoom lens system
Focusing method for zoom lens
Focusing method selectable zoom optical system
Focusing module
Focusing optical system for semiconductor lasers
Focusing system
Focusing systems for perspective dimensional measurements...
Focusing systems for perspective dimensional measurements...
Focusing unit and optical device
Focusing-free microlens assembly and the method of making...
Foldable projection lenses
Folded image intensifier objective lens
Folded optical system and a lens for use in the optical system
Folded, telecentric projection lenses for use with pixelized...
Four-group zoom lens
Four-group zoom lens