Troubleshooting; Optical Block Overview - Panasonic PT-RZ470 Series Service Manual

6. Troubleshooting

6. 1. Optical block overview

Lighting brock
LED-Collimate
lens1、2
DMD block
Lens unit
P-Collimate
lens1、2、3
LED-B unit
R- Transmissive
LED-Relay
Dichroic mirror
lens
Relay lens 5
DMD Reflection
mirror 2
Relay lens 3、4
Phosphor Wheel
Diffuser panel
LD-Relay
lens 2
G-Transmissive
Dichroic mirror
LED-Collimate
lens 2
Relay lens 1
(Lighting area ADJ)
Brightnes
s sensor
・The light source is composed of a blue LED, the red LED and the
laser unit (LD).
LD is formed by 30 blue light laser diodes and mountain type
collimate lens.
・The blue laser light from LD is equalized with a diffusion board,
after being condensed by a relay lens 1-2.
Then, it reflects with a G-Transmissive Dichroic mirror, and enters
into a phosphor wheel.
・It is changed into a green light with a phosphor wheel, it is changed
into a parallel light by P-Collimate lens1-3, and enters into a rod
integrator.
・The light of each LED, changes emission light into parallel light by
each collimate lens, lets each dichroic mirror and each relay lens
pass, and enters into a rod integrator.
INF - 16
LD-Relay lens1
Relay lens 2