NEC PA803UL, Руководство пользователя

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152
8. Appendix
❶
Throw distance and screen size
Three separate bayonet style lenses can be used on this projector. Refer to the information on this page and use a
lens suited for the installation environment (screen size and throw distance). For instructions on mounting the lens,
see page
138 .
Lens types and throw distance
Screen size
(inches)
Lens model name
NP40ZL NP41ZL NP43ZL
(inches) (m) (inches) (m) (inches) (m)
50 33 - 46 0.8 - 1.2 54 - 127 1.4 - 3.2 129 - 254 3.3 - 6.4
60 40 - 56 1.0 - 1.4 66 - 153 1.7 - 3.9 154 - 303 3.9 - 7.7
80 53 - 75 1.4 - 1.9 88 - 204 2.2 - 5.2 204 - 403 5.2 - 10.2
100 67 - 94 1.7 - 2.4 110 - 256 2.8 - 6.5 254 - 503 6.4 - 12.8
120 81 - 113 2.0 - 2.9 133 - 307 3.4 - 7.8 303 - 602 7.7 - 15.3
150 101 - 142 2.6 - 3.6 166 - 384 4.2 - 9.8 378 - 752 9.6 - 19.1
200 135 - 190 3.4 - 4.8 223 - 513 5.7 - 13.0 502 - 1001 12.7 - 25.4
240 163 - 229 4.1 - 5.8 267 - 616 6.8 - 15.6 601 - 1201 15.3 - 30.5
300 204 - 286 5.2 - 7.3 335 - 770 8.5 - 19.6 750 - 1500 19.1 - 38.1
400 272 - 382 6.9 - 9.7 447 - 1028 11.4 - 26.1 999 - 1998 25.4 - 50.8
500 340 - 478 8.6 - 12.1 559 - 1285 14.2 - 32.6 1247 - 2497 31.7 - 63.4
TIP
Calculation of the throw distance from the screen size
NP40ZL lens throw distance (inch/m) = H x 0.8 to H x 1.1 : 33"/0.8 m (min.) to 478"/12.1 m (max.)
NP41ZL lens throw distance (inch/m) = H x 1.3 to H x 3.0 : 54"/1.4 m (min.) to 1285"/32.6 m (max.)
NP43ZL lens throw distance (inch/m) = H x 2.9 to H x 5.7 : 129"/3.3 m (min.) to 2497"/63.4 m (max.)
“H” (Horizontal) refers to the screen width.
* Figures differ by several % with the table above because the calculation is approximate.
Ex.: Throw distance when projecting on a 150" screen using the NP41ZL lens:
According to the “Screen Size (for reference)” table ( → page 153 ), H (screen width) = 127.2"/323.1 cm.
The throw distance is 127.2"/323.1 cm × 1.3 to 127.2"/323.1 cm × 3.0 = 165"/420.0 cm to 382"/969.3 cm (because of the zoom lens).
Projection range for the different lenses
50-500" 50-500" 50-500"
NP40ZL : 33" - 478"/0.8 - 12.1 m
NP41ZL : 54" - 1285"/1.4 - 32.6 m
NP43ZL : 129" - 2497"/3.3 - 63.4 m