Epson EMP-S4 - Optical Engine

2-5
EMP-S4
SEIKO EPSON Revision:B
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.
Figure 2-4. Optical Engine
Optical Engine
Figure 2-5. Optical Engine Functional Diagram
POP Unit
Projection lens (focus)
Light Guide Unit
Light Valve (B)
Light Valve (G)
Light Valve (R)