BenQ DLP PROJECTOR PE8700 - Manual (Page 10)

9
Practical consideration
1. When measuring contrast manually, operators should not wear white
clothing since light reflected from white clothing can influence the
measurement.
2. Unless otherwise specified the projection lens is set in the widest zoom
position since zoom function can influence the measurement.
3. Measurement should be performed with Minolta Chromameter, Model
CL-100, or equivalent.
A1. BRIGHTNESS
Unit: Lumen
Brightness: Default
Contrast: Default
W: width of projected image; H: height of projected image
A (Area) = W * H (in meters)
ANSI Lumens =
) ( ) (
9
9 8 7 6 5 4 3 2 1
2 m A lux
L L L L L L L L L
∗
+ + + + + + + +
1
3
W
1
6
W
1
6
H
1
3
H