Ricoh Antares-PJ1 CS, Обучение по обслуживанию

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60
Antares-PJ1Training
Slide 60
Terms and Definitions - 10
‰
Screen Gain
Š A measure of how brightly a screen displays an image.
Š The higher the screen gain, the brighter the screen.
‰
Relation between Screen Gain and Brightness
Š Generally, the larger the screen, the darker it is. If you choose
a screen with a higher gain, the brightness is preserved to
some extent.
Š Also, choose a screen to suit the room. In a long room, use a
high luminance screen. In a wide room, a high viewing angle
screen.
1 2 3 (low) Screen gain
3 2 1 (cheap) Price
1 2 3 (dark) Brightness
3 2 1 (wide) Viewing angle
(horizontally)
High luminance
screen High viewing angle
screen White screen for OHP
projection
Screen Size Conversion Table
‰ Screen size (inches) is measured diagonally across the screen from top left to
bottom right.
6408 3609 5893 4420 290 3315 1867 3048 2286 150
6629 3734 6096 4572 300 3536 1991 3251 2438 160
6187 3485 5690 4267 280 3094 1742 2845 2134 140
5966 3360 5486 4115 270 2873 1618 2642 1981 130
5745 3236 5283 3962 260 2652 1494 2438 1829 120
5525 3112 5080 3810 250 2431 1369 2235 1676 110
5304 2987 4877 3658 240 2210 1245 2032 1524 100
5083 2863 4674 3505 230 1989 1120 1829 1372 90
4862 2738 4470 3353 220 1768 996 1626 1219 80
4641 2614 4267 3200 210 1547 871 1422 1067 70
4420 2489 4064 3048 200 1328 747 1219 914 60
4199 2365 3861 2896 190 1107 623 1016 762 50
3978 2240 3648 2743 180 885 498 813 610 40
3757 2116 3454 2591 170 664 374 610 457 30
W
(mm)
L
(mm)
W
(mm)
L
(mm)
Size
(in)
W
(mm)
L
(mm)
W
(mm)
L
(mm)
Size
(in)
16:9 4:3 16:9 4:3