Sony VPH-D50Q Manuel D'installation page 10

Installation Diagrams
When the Screen Size is not Mentioned in the Tables
10
(EN) Installation
You can calculate the installation measurements described below when you
use the screen whose size is not mentioned in the tables on pages 9 (EN)
and 11 (EN).
Check your installation conditions:
• Screen size to be used (S)
• Installation measurements at the end of the manual, EL and BL for larger
screen size and ES and BS for smaller screen size
See the tables on pages 106 (EN) to 110 (EN).
B
Center of the screen
Now you can calculate the installation measurements as follows:
E (mm) = ES + ((S – smaller screen size) × (EL – ES) × 0.1)
B (mm) = BS + ((S – smaller screen size) × (BL – BS) × 0.1) + 254
Example: when using 124-inch screen
According to the tables on pages 107 (EN) and 108 (EN), the values E and
B are as follows:
ES = 3571, BS = 860 (As the smaller screen size is 120 inch.)
EL = 3856, BL = 929 (As the smaller screen size is 130 inch.)
Therefore,
E (mm) = 3571 + ((124 –120) × (3856 – 3571) × 0.1) = 3685 (mm)
B (mm) = 860 + ((124 – 120) × (929 – 860) × 0.1) + 254 = 1142 (mm)
Center of the green lens
E
E: Projection distance
B: Screen heights