Optical apparatus and projection type display apparatus for...

Optical apparatus for correcting focus based on temperature...

Optical apparatus for correcting vibration using ball-guides...

Optical apparatus for forming an object image on a sensing...

Optical apparatus having control unit configured to reduce...

Optical apparatus having device for removing foreign substance

Optical apparatus having device for removing foreign substance

Optical apparatus having device for removing foreign substance

Optical apparatus having dust off function

Optical apparatus having dust off function

Optical apparatus including image pick-up device and...

Optical apparatus operable in static and dynamic image...

Optical apparatus with a plurality of zooming control means

Optical apparatus with a voltage controlled variable density...

Optical apparatus with memories storing a default setting...

Optical apparatus with motor drive control selected based on...

Optical apparatus with stabilization control based on...

Optical apparatus with unit for correcting blur of captured...

Optical apparatus, optical apparatus driving unit and camera...

Optical apparatus, projection display apparatus and optical comp