Adjusting The Projector Focus; Adjusting Projection Image Size - NEC L102W User Manual

Installation
B
D
inch
B=Vertical distance between lens center and screen center
C=Throw distance
D=Vertical distance between lens center and bottom of screen
α=Throw angle

English ... 18

Adjusting the Projector Focus

To focus the image, rotate the focus lever until the image is
clear.
The projector will focus at distances from 20.5" to 118.1"/52

to 300 cm.

Adjusting Projection Image Size

Projection Image Size from 17" to 100" (0.43 to 2.540 meters).

Screen Center
Screen Bottom
Screen
Diagonal Width
mm inch mm
17
432 15 371
30 762 26 650
40 1,016 34 861
60 1,524 51 1,292
80 2,032 68 1,723
100 2,540 84 2,143
This graph is for user's reference only.
Throw Distance
C
α
B
Height
inch mm inch mm
9 232 5 128
16 406 9 223
21 539 12 297
17 444
32 808
42 1,077 23 593
53 1,340 29 737
Focus Lever
C D
inch mm inch mm
20 520 0.5 12
36 910 0.8 20
48 1,210 1.1 27
71 1,810 1.6 40
95 2,410 2.1 54
118 3,000 2.6 67
α
degree
13.8
13.8
13.8
13.8
13.8
13.8