Lens shift mechanism and projection type video display

Lens shift mechanism and projection type video display

Lens shifting apparatus

Lens-shifting device

Liquid crystal display projector

Liquid crystal display projector with a lens shading device...

Liquid crystal projector

Liquid crystal projector

Locking device for a projector component

Magnified image projector apparatus

Method and an apparatus for expanding magnification range of a p

Method and apparatus for detecting the focusing condition of an

Method of automatically focusing glass-mounted and glassless sli

Method of manufacturing different types of image display...

Microfiche reader

Microfilm image processing apparatus having automatic focus cont

Microfilm reading device

Multiple lens image rotation system

Objective lens exchanging arrangement in a microfilm reader

Optical apparatus and projector