Lens device and projector having diaphragm mechanisms with...
Lens device and projector having diaphragm mechanisms with...
Lens device and projector having diaphragm mechanisms with...
Lens device and projector having diaphragm mechanisms with...
Light amount adjusting device and projector using the same
Light amount control apparatus and projector apparatus using...
Light amount control device and projector
Light blocking panel for overhead projectors
Light-source device and projection type display device
Liquid crystal projector