Apparatus to control light intensity from arc lamp

Highlighted module for overhead view projector

Image display device and projector

Image mask for microfilm roll handler

Layered display system and method for volumetric presentation

Light amount adjusting apparatus and projector using the same

Light quantity adjusting device and projector apparatus...

Light shutter mechanism for planetarium

Light shutter projector with a fluorescent screen

Masking device for use with image projectors

Optical diaphragm, projector, correction parameter...

Overhead projectors

Photographic film projection dissolve system for arc lamp projec

Projection display apparatus

Projection system using spatial filter

Projection type video display

Projection type video display

Shutter device and projection type video display

Shutter for display device of projection type

Slide magazine projector