Optical Engine - Epson EMP-S4 Service Manual

2.2 Optical Engine

The optical system consists of four components: the Lamp Assys., the Light Guide Unit, the
Panel-on-Prism (POP) Unit, and the projection lens. These four components together are called
the Optical Engine.
Light Valve (B)
Optical Engine
SEIKO EPSON
Light Valve (G)
Figure 2-4. Optical Engine
Figure 2-5. Optical Engine Functional Diagram
EMP-S4
Projection lens (focus)
POP Unit
Light Valve (R)
Light Guide Unit
2-5 Revision:B