Philips 220X 用户手册
200 cm
height of the screen
125 cm
minimum distance
to the floor
800 cm
400 cm
63
Subject to technical alterations, as well as to changes of the design and the colour
Datalux
Ideal viewing angle 35
°
(to the left or right of the image centre)
Gain factor 2
For bright lecture rooms and projectors with
a low light output
a low light output
Matt white – Datex/R – HighContrast/S
Ideal viewing angle 50
°
(to the left or right of the image centre)
Gain factor 1
For lecture rooms in which
the ambient light can be easily controlled
the ambient light can be easily controlled
The proper guideline for large-screen projection
How to choose the proper screen fabrics
Matt white
– The screen fabric matt white is undoubtedly the first choice
and guarantees bright, natural colours without a loss of intensity.
Datalux
– The screen fabric datalux was developed for special applications
that require a higher reflection value and a smaller viewing angle.
It is ideal for projection from the ceiling.
It is ideal for projection from the ceiling.
How to choose the proper height of the screen (4:3)
How to choose the proper type of screen
PROJECTION SCREENS
Which screen is to be preferred first of all depends on the application. For frequent shows in the same location a wall or ceiling screen - manually
or electrically operated, with or without frame - should be considered. For shows in different locations a tripod screen resp. a portabe screen is
the better solution.
or electrically operated, with or without frame - should be considered. For shows in different locations a tripod screen resp. a portabe screen is
the better solution.
Height of the screen
= one sixth of its distance to the last row of seats
= one sixth of its distance to the last row of seats
Distance between the screen and the first row of seats
= height of the screen x 1.5
= height of the screen x 1.5
Minimum distance between the screen bottom and the floor
= 0.60 – 0.90 m for home cinema use
= 1.25 m if the audience is sitting
= 1.60 m if the audience is standing
= 0.60 – 0.90 m for home cinema use
= 1.25 m if the audience is sitting
= 1.60 m if the audience is standing
100
°
70
°
Fabric type
Reflection value
Viewing angle
Weight per sqm
Thickness mm
Used in
Matt white/S
1.0
50
°
425
0.34
Installation/mobile
Matt white/M
1.0
50
°
1350
0.95
Elpro/Hapro
Matt white/D
1.0
50
°
490
0.26
FastFold
Matt white/P
1.0
50
°
480
0.45
Home Screen
Matt white/W
1.1
40
°
900
0.65
Cineroll Electric Advanced
Matt white/WP
1.1
40
°
500
0.35
Cineflex Electric IR
Matt white/WF
1.1
40
°
600
0.35
Cinelux Mobil 2
Matt white/WD
1.1
40
°
400
0.27
Cinelux Compact Mono
Datex/R
1.8
30
°
490
0.26
Fastfold
HighContrast/S
1.0
45
°
540
0.36
Home cinema
Datalux/F
2.2
35
°
160
0.11
Table-/LiteScreen
Datalux/S
1.5
35
°
425
0.35
Installation/mobile
Datalux/M
1.5
35
°
1400
1.00
Elpro/Hapro
framed screen
manual – installed
electrical – installed
tripod – mobile
How to choose the proper picture format
Home cinema format
for DVD or HDTV
for DVD or HDTV
Video format
for video presentations
or TV
for video presentations
or TV
Standard format
for overhead
or slide projection
for overhead
or slide projection
1:1
4:3
16:9