ViewSonic PJ870 Service Manual - Page 11
Basic, Functions
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P3870 2-1.2 Basic Functions 4- Projection Lens 4 Enhance Mirror Elliptical Reflector P-VIP Lamp 120W 4- Plastic Condenser Lens 4- Hollow Integration Rod 4 UV-IR Filter 4 Plastic Relay Lens TIR Prism 4 Color Wheel 4 AR Coating Plate O DMD Module Projecting image on the screen Folding optical path. The light source. Condensing the light beam. Making the light beam uniform. Filtering UV-IR out. Lengtheningoptical path. Reflecting all light beams inside. Separating the light beam into and produce R.G.B colors. Protecting system components if the lamp explode. Displaying component. ViewSonic Corporation [ 2-3 ] Confidential - Do Not Copy
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P3870
2-1.2
Basic
Functions
4-
Projection
Lens
Projecting
image
on
the
screen
4
Enhance
Mirror
Folding
optical
path.
Elliptical
Reflector
The
light
source.
P
-VIP
Lamp
120W
4-
Plastic
Condenser
Lens
4-
Hollow
Integration
Rod
Condensing
the
light
beam.
Making
the
light
beam
uniform.
4
UV-IR
Filter
Filtering
UV-IR
out.
4
Plastic
Relay
Lens
Lengthening
optical
path.
TIR
Prism
Reflecting
all
light
beams
inside.
4
Color
Wheel
Separating
the
light
beam
into
and
produce
R.G.B
colors.
4
AR
Coating
Plate
Protecting
system
components
if
the
lamp
explode.
O
DMD
Module
Displaying
component.
[
2-3
]
ViewSonic
Corporation
Confidential
-
Do
Not
Copy