NEC P525UL User Manual page 143

Example of installation on a desktop
The diagram below shows an example of when the projector is used on a desktop.
Horizontal projection position: Equal distance to the left and right from the center of the lens
Vertical projection position: (see table below)
Approximately 78 to 87 mm
(NOTE) Height from lens center to lower edge of screen (with tilt feet screwed in)
Screen size
(inches)
Wide
30 0.77
40 1.03
60 1.56
80 2.10
90 2.36
100 2.63
120 3.16
150 3.96
180 4.76
200 5.30
250 6.36
270 7.16
300 7.96
Lens center
Projection distance L
Throw distance L
(m)
Tele Wide
1.26 30.1
1.69 40.6
2.55 61.6
3.41 82.6
3.84 93.1
4.27 103.6
5.13 124.6
6.43 156.1
7.72 187.6
8.58 208.6
10.30 250.5
11.59 282.0
12.89 313.5
Screen surface
Lower edge of screen with 61.6% V
Measurement +H
Measurement -H
Lower edge of screen with 0% V
(inches)
Tele 0%V – 60%V
49.5 −20.2 – +4.0
66.5 −26.9 – +5.4
100.4 −40.4 – +8.1
134.3 −53.8 – +10.8
151.3 −60.6 – +12.1
168.2 −67.3 – +13.5
202.1 −80.8 – +16.2
253.0 −101.0 – +20.2
303.8 −121.2 – +24.2
337.8 −134.6 – +26.9
405.6 −161.5 – +32.3
456.4 −181.7 – +36.3
507.3 −201.9 – +40.4
123
9. Appendix
Height H
(m) (inches)
0%V – 60%V
−7.9 – +1.6
−10.6 – +2.1
−15.9 – +3.2
−21.2 – +4.2
−23.8 – +4.8
−26.5 – +5.3
−31.8 – +6.4
−39.7 – +7.9
−47.7 – +9.5
−53.0 – +10.6
−63.6 – +12.7
−71.5 – +14.3
−79.5 – +15.9