NEC VE303, User Manual

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31 ... English
Installation
Adjusting Projection Image Size (Diagonal)
Projection Image Size from 30” to 300” (0.76 to 7.62 meters).
(B)
(D)
(C)
(α)
D) (D)
(αα)
Screen Width
Screen Diagonal
Screen Center
Screen Bottom
Lens Center
Screen Height
B = Vertical distance between lens center
and screen center
C = Throw distance
D = Vertical distance between lens center
and bottom of screen(top of screen for
ceiling application)
α
= Throw angle
Note: Distances may vary ± 5%.
Screen Size
(B)
(C)
D
(WIDE)
α
Diagonal Width Height
Wide
Tele Wide Tele
inch mm inch mm inch mm inch mm inch mm inch mm inch mm degree degree
30 762 24 610 18 457 12 297 47 1189 52 1311 3 69 14.0 12.8
40 1016 32 813 24 610 16 396 62 1585 69 1747 4 91 14.0 12.8
60 1524 48 1219 36 914 23 594 94 2377 103 2621 5 137 14.0 12.8
70 1778 56 1422 42 1067 27 693 109 2773 120 3058 6 160 14.0 12.8
80 2032 64 1626 48 1219 31 792 125 3169 138 3495 7 183 14.0 12.8