Projector with foreign matter detecting means

Projector with foreign matter detecting means

Projector with illuminating light collecting unit

Projectors with security area detection

Rear projection screen assembly

Reflecting image projection screen and image projection system c

Reflecting non-visible light off one or more mirrors

Retroreflective array virtual image projection screen

Rotary operation mechanism, electronic apparatus and projector

Scene projector

Screen device for use with image projecting apparatus

Screen simulator window

Shading device of the LCD projecting plate

Slide production system

Slide projector assembly

Slide projector mountable light valve display

Slide projector mountable light valve display

Slide projector mountable light valve display

Slide tray protector

Speckle minimization in projection displays by reducing spatial