Sharp XV-ZW99U Service Manual page 18

THE OPTICAL UNIT OUTLINE
Layout of the optical system
Note: Layout for positioning the optical system.
r-l-l
Polarizing film
Incident polarizing plate B
I
Projection Lens
Pre-polarizing film
Pre-polarizing plate
Dichroic coating
(B transmission)
Incident polarizing plate R
Dichroic coating
transmission)
Dichroic coating
(B -.
I
AR-coated face
I
Dichroic coating
RED (R reflection)
Y
Relay lens 1
AL-deposited face
l
The M3 mirrors and the M5 have
a coating wedge (for different film
thickness). Set up these mirrors,
with their markings positioned as
shown above, so that their
coated faces and both sides be
in the correct directions.
Metal-halide lamp
(Light source)
AR-coating 1
Fly-eye lens
(bUtgOing
light) -
AR-coating
'w I R-coating
- Fly-eye lens (incoming light)
l-
- UV-coating
Protective glass
18