Panasonic PT-RQ22K

Chapter 2 Getting Started — Setting up
44 - ENGLISH
Fixed-focus Lens (Model No.: ET-D75LE95, ET-D75LE90)
SH
SW
SD
SHA1
L3
L4
A2
L1
L2
SW
Projected image
Screen
Screen
Note
f This illustration is prepared on the assumption that the projected image size and position have been aligned to t full in the screen.
SH Projected image height
SW Projected image width
SD Projected image size
L1
*1
Projection distance (distance from the mirror reection surface
*2
to the screen)
L2 Distance from the front end of the projection lens to the screen
L3 Distance from the front surface of the projector to the screen
L4 Distance from the back surface of the projector to the screen
A1
*1
Distance from the top surface of the projector to the bottom edge of the screen
A2 Distance from the installation surface of the projector to the screen (adjustable feet at lowest position)
*1 For details about calculating the projection distance, refer to “Formula for calculating the projection distance per projection lens” (x page 52).
*2 The mirror reection surface cannot be seen from the outside, because it is located inside the Fixed-focus Lens.
(Unit: m)
Distance from the projector
to the screen
Formula
ET-D75LE95 ET-D75LE90
L2 = L1 + 0.029 = L1 + 0.029
L3 = L1
- 0.292 = L1 - 0.277
L4 = L1
- 1.017 = L1 - 1.002
A2 = A1 + 0.324 = A1 + 0.324
Attention
f The dimension of L4 is not the distance between the rear of the projector body and the wall, but the distance between the rear of the
projector body and the screen surface. Install the projector with 500 mm (19-11/16") or larger space between the rear of the projector body
and the wall or any object so that the ventilation is not obstructed.
When installing the projector in a conned space, provide air conditioning or ventilation separately. Exhaust heat may accumulate when the
ventilation is not enough, triggering the protection circuit of the projector.
Note
f For the adjustment range of the projected image position with the lens shift, refer to “Lens shift range” (x page 86).