Panasonic PT-RQ25K Series

Chapter 2 Getting Started — Setting up
ENGLISH - 45
Projection lens Model No. Lens protrusion dimension (L1) (approximate value)
ET-D3LEW60/ET-D75LE6 0.213
ET-D3LET80/ET-D75LE8 0.263
Note
f For the adjustment range of the projected image position with the lens shift, refer to “Lens shift range” (x page 92).
ET-D3LEU100, ET-D3LEW200
L1
L2
SD
L (LW/LT)
L3
SW SH
SH
SW
Projected image
Screen
Screen
Lens optical axis
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.
f This illustration is not in accurate scale.
f The lens optical axis is the symmetrical axis passing through the center of the optical image system. This does not match with the image
center position at the home position. The home position is an origin position of the lens shift (vertical position and horizontal position of the
lens) based on the calibration result.
SH Projected image height
SW Projected image width
SD Projected image size
L
*1
(LW/LT)
*2
Projection distance (distance from the front end of the projection lens to the screen)
L1
Lens protrusion dimension (distance from the front surface of the projector to the forward end of the
projection lens)
L2 Position of the lens optical axis (distance from the front surface of the projector to the lens optical axis)
L3 Position of the lens apex (distance from the side of the projector to the lens apex)
*1 For details about calculating the projection distance, refer to “Formula for calculating the projection distance per projection lens” (x page 56).
*2 LW: Minimum projection distance when the Zoom Lens is used
LT: Maximum projection distance when the Zoom Lens is used
(Unit: m)
Projection lens Model No.
Lens protrusion dimension (L1)
(approximate value)
Position of the lens optical axis
(L2)
(approximate value)
Position of the lens apex (L3)
(approximate value)
ET-D3LEU100 0.286 0.210 0.077
ET-D3LEW200 0.352 0.255 0.102
Note
f For the adjustment range of the projected image position with the lens shift, refer to “Lens shift range” (x page 92).