Cleaning Of Optical Parts; Note On Handling Of Inorganic Polarizer - Panasonic PT-VZ570 Service Manual

SECTION 2 DISASSEMBLY PROCEDURES

4. Cleaning of Optical Parts

4.1. Note on handling of inorganic polarizer

This projector provides high durable inorganic polarizer which has a rib shaped evaporated aluminum on the glass surface.
This surface is very delicate. If touching or wiping the surface, the polarizing function will be lost due to damage of the alu-
minium rib construction on the surface. Extreme care should be taken to handle the polarizer.
 Inorganic polarizer handling
Never grasp the surface or edges of the polarizer with bare hand. If fat and oil on your hand adheres on the edges
of polarizer, the linear bolt may appear on the glass surface due to capillarity. Grasp the edges of the glass with
new gloves or with tweezers when handling it.
 Inorganic polarizer cleaning
When removing the dust on the surface, use a commercial (inert gas) air spray or air blower to remove them.
Never use organic solvents.
 Indication of light in-coming side and out-going side
The indication of "in-coming side" and "out-going side" of the polarizer or LCD panels is shown in the figure. It indicates the
light in-coming and out-going from the lamp.
 Contact prohibition area of inorganic polarizer
The aluminum evaporated surface of inorganic polarizer is contact prohibition area. Prohibit touching it with bare hand, wip-
ing or contacting with the other parts.
2.0mm
2.0mm
Screen side
Out-going side
In-coming side
2.0mm
Aluminum evaporated surface
DIS-21
In-coming
side
Lamp side
Contact prohibition area
2.0mm
2.0mm
2.0mm