Resources Contact Us Home
Lens device

Image Number 4 for United States Patent #7403342.

A lens device comprises: at least one driven member including an optical system and a lens frame holding the optical system; a plurality of guides that guide the driven member in a direction of an optical axis; a driving frictional member frictionally engaged with the driven member; and an electro-mechanical conversion member connected to the driving frictional member.

  Recently Added Patents
Method, apparatus, and manufacture for adaptation of video encoder tuning parameters
Active constant power supply apparatus
Wire guide
Illumination apparatus for microlithography projection system including polarization-modulating optical element
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
Multi-state DC-DC converter having undirectional switches
Power device and method of packaging same
  Randomly Featured Patents
Method and apparatus providing hardware-efficient demosaicing of image data
Polymer resins with amino acid containing pendants for sorption of bile pigments and bile acids
Hetero-epitaxially grown compound semiconductor substrate and a method of growing the same
Strong cationic polyelectrolytes in powder form based on acrylamide and quaternized or salified dimethylaminoethyl acrylate for flocculation of solid material suspensions and coalescence of em
Niobium-activated yttrium tantalate x-ray phosphor with improved brightness and method for making the same
Independent research consensus earnings estimates and methods of determining such
Semiconductor device
Cardiac pacemaker lead
Methods of patterning a magnetic stack of a magnetic memory cell and structures thereof