Liquid crystal projector with cooling system

Liquid-crystal projector with light beam reduction lens array fo

Masking of light valve spill light

Method and apparatus for a depth seamed three-dimensional visual

Method and apparatus for magnifying display data generated in a

Method and apparatus producing three-dimensional shadow images

Method for producing color structure change through interaction

Microfiche reader projection screen

Microfilm handling system

Microscope lens system

Minimum resolvable contrast measurement device

Motor-controlled lens system

Multi-screen projector

Multiple function recording and readout system

Objective lens holding arrangement for a micro-film reader

Operator responsive audio-visual teaching apparatus

Optical image amplifier apparatus

Optical image multiplying device

Optical layout for a three light valve full-color projector empl

Optical projector and method of creating lighting effects