Table of Contents
Advertisement
Standard installation dimensions (continued)
L (LW/LT) *
Projection distance (m)
1
SH
Height of the projection area (m)
SW
Width of the projection area (m)
Distance from the center of lens to
H
the image lower end (m)
Diagonal length of the projection
SD
area (m)
*1: L W: Minimum distance, LT: Maximum distance
Projection distance for PT-LX300/PT-LX270
J
All measurements below are approximate and may differ slightly from the actual measurements. (unit: m ("))
Projection size
Minimum
Screen diagonal
distance
(SD)
(LW)
0.76 (30")
1.2 (3'11")
1.02 (40")
1.6 (5'3")
1.27 (50")
2.0 (6'7")
1.52 (60")
2.4 (7'10")
1.78 (70")
2.8 (9'2")
2.03 (80")
3.2 (10'6")
2.29 (90")
3.6 (11'10")
2.54 (100")
4.0 (13'1")
3.05 (120")
4.8 (15'9")
3.81 (150")
5.9 (19'4")
5.08 (200")
7.9 (25'11")
6.35 (250")
9.9 (32'6")
7.62 (300")
11.9 (39'1")
Calculation formulas for projection distance
Q
Any other projection distance can be obtained according to the screen dimensions (m) using the following
calculations. The calculation result is with the "m" unit. (The calculated distance below may contain a certain
error.) If the screen dimensions are written as "SD",
Screen height (SH)
Screen width (SW)
Min. projecion distance (LW)
Max. projecion distance (LT)
Note
z The throw ratio is 0.52:1 when the projection size is 2.54m (100").
Projected image
SW
For 4:3 aspect ratio
Maximum
Height
distance
position (H)
(LT)
1.3 (4'3")
0.07 (3")
1.8 (5'11")
0.09 (4")
2.2 (7'3")
0.11 (4")
2.6 (8'6")
0.14 (6")
3.1 (10'2")
0.16 (6")
3.5 (11'6")
0.18 (7")
3.9 (12'10")
0.21 (8")
4.4 (14'5")
0.23 (9")
5.2 (17'1")
0.27 (11")
6.6 (21'8")
0.34 (1'1")
8.7 (28'7")
0.46 (1'6")
10.9 (35'9")
0.57 (1'10")
13.1 (43')
0.69 (2'3")
For 4:3 aspect ratio
= SD × 0.6
= SD × 0.8
= 1.56 × SD
= 1.72 × SD
Screen
L (LW/LT)
L (LW/LT)
Screen
For 16:9 aspect ratio
Minimum
Maximum
distance
distance
(LW)
(LT)
1.3 (4'3")
1.4 (4'7")
1.7 (5'7")
1.9 (6'3")
2.2 (7'3")
2.4 (7'10")
2.6 (8'6")
2.9 (9'6")
3.0 (9'10")
3.3 (10'10")
3.5 (11'6")
3.8 (12'6")
3.9 (12'10")
4.3 (14'1")
4.3 (14'1")
4.8 (15'9")
5.2 (17'1")
5.7 (18'8")
6.5 (21'4")
7.1 (23'3")
8.6 (28'3")
9.5 (31'2")
10.8 (35'5")
11.9 (39'1")
13.0 (42'8")
14.3 (46'11")
For 16:9 aspect ratio
= SD × 0.490
= SD × 0.872
= 1.70 × SD
= 1.874 × SD
Height
position (H)
0.14 (6")
0.18 (7")
0.23 (9")
0.27 (11")
0.32 (1'1")
0.37 (1'3")
0.41 (1'4")
0.46 (1'6")
0.55 (1'10")
0.69 (2'3")
0.91 (3')
1.14 (3'9")
1.37 (4'6")
ENGLISH - 13
Advertisement
Table of Contents
