Data Projector Operation Manual

-20
Standard Zoom Lens
F1.7-F1.9, f=28.0-33.6 mm
16:10 Signal Input (Normal Mode)
The formula for picture size and projection distance
[m/cm]
L1 (m) = 0.03755
χ
L2 (m) = 0.04507
χ
H (cm) = –0.03209
χ
[Feet/inches]
L1 (ft) = 0.03755
χ
/ 0.3048
L2 (ft) = 0.04507
χ
/ 0.3048
H (in) = –0.03209
χ
/ 2.54
χ
: Picture size (diag.) (in/cm)
L: Projection distance(m/ft)
L1: Minimum projection distance (m/ft)
L2: Maximum projection distance (m/ft)
H: Distance from the lens center to the bottom of the image (cm/in)
The formula for picture size and projection distance
[m/cm]
L1 (m) = 0.04251
χ
L2 (m) = 0.05102
χ
H (cm) = –0.03633
χ
[Feet/inches]
L1 (ft) = 0.04251
χ
/ 0.3048
L2 (ft) = 0.05102
χ
/ 0.3048
H (in) = –0.03633
χ
/ 2.54
χ
: Picture size (diag.) (in/cm)
L: Projection distance(m/ft)
L1: Minimum projection distance (m/ft)
L2: Maximum projection distance (m/ft)
H: Distance from the lens center to the bottom of the image (cm/in)
4:3 Signal Input (Normal Mode)
Setting Up the Projector
Picture (Screen) size Projection distance [L]
Distance from the lens center
to the bottom of the image [H]
Diag. [x] Width Height Minimum [L1] Maxmum [L2]
500'' (1270 cm) 1077 cm (424'') 673 cm (265'') 18.8 m (61' 7") 22.5 m (73' 11")
–16 cm (–6
5
/16")
400'' (1016 cm) 862 cm (339'') 538 cm (212'') 15.0 m (49' 3") 18.0 m (59' 2")
–13 cm (–5
3
/64")
300'' (762 cm) 646 cm (254'') 404 cm (159'') 11.3 m (37' 0") 13.5 m (44' 4")
–10 cm (–3
51
/64")
250'' (635 cm) 538 cm (212'') 337 cm (132'') 9.4 m (30' 10") 11.3 m (37' 0")
–8 cm (–3
5
/32")
200'' (508 cm) 431 cm (170'') 269 cm (106'') 7.5 m (24' 8") 9.0 m (29' 7")
–6 cm (–2
17
/32")
150'' (381 cm) 323 cm (127'') 202 cm (79'') 5.6 m (18' 6") 6.8 m (22' 2")
–5 cm (–1
57
/64")
120'' (305 cm) 258 cm (102'') 162 cm (64'') 4.5 m (14' 9") 5.4 m (17' 9")
–4 cm (–1
33
/64")
100'' (254 cm) 215 cm (85'') 135 cm (53'') 3.8 m (12' 4") 4.5 m (14' 9")
–3 cm (–1
17
/64")
80'' (203 cm) 172 cm (68'') 108 cm (42'') 3.0 m (9' 10") 3.6 m (11' 10")
–3 cm (–1
1
/64")
60'' (152 cm) 129 cm (51'') 81 cm (32'') 2.3 m (7' 5") 2.7 m (8' 10")
–2 cm (–
49
/64")
40'' (102 cm) 86 cm (34'') 54 cm (21'') 1.5 m (4' 11") 1.8 m (5' 11")
–1 cm (–
1
/2")
Distance from the lens center
to the bottom of the image [H]
Picture (Screen) size Projection distance [L]
Diag. [x] Width Height Minimum [L1] Maxmum [L2]
400'' (1016 cm) 813 cm (320'') 610 cm (240'') 17.0 m (55' 9") 20.4 m (66' 11")
–15 cm
(
–5
23
/32")
300'' (762 cm) 610 cm (240'') 457 cm (180'') 12.8 m (41' 10") 15.3 m (50' 3")
–11 cm
(
–4
19
/64")
250'' (635 cm) 508 cm (200'') 381 cm (150'') 10.6 m (34' 10") 12.8 m (41' 10")
–9 cm
(
–3
37
/64")
200'' (508 cm) 406 cm (160'') 305 cm (120'') 8.5 m (27' 11") 10.2 m (33' 6")
–7 cm
(
–2
55
/64")
150'' (381 cm) 305 cm (120'') 229 cm (90'') 6.4 m (20' 11") 7.7 m (25' 1")
–5 cm
(
–2
9
/64")
120'' (305 cm) 244 cm (96'') 183 cm (72'') 5.1 m (16' 9") 6.1 m (20' 1")
–4 cm
(
–1
23
/32")
100'' (254 cm) 203 cm (80'') 152 cm (60'') 4.3 m (13' 11") 5.1 m (16' 9")
–4 cm
(
–1
7
/16")
80'' (203 cm) 163 cm (64'') 122 cm (48'') 3.4 m (11' 2") 4.1 m (13' 5")
–3 cm
(
–1
9
/64")
70'' (178 cm) 142 cm (56'') 107 cm (42'') 3.0 m (9' 9") 3.6 m (11' 9")
–3 cm
(
–1")
60'' (152 cm) 122 cm (48'') 91 cm (36'') 2.6 m (8' 4") 3.1 m (10' 1")
–2 cm
(
–
55
/64")
40'' (102 cm) 81 cm (32'') 61 cm (24'') 1.7 m (5' 7") 2.0 m (6' 8")
–1 cm
(
–
37
/64")
Note
• Allow a margin of error in the value in the diagrams above.
• When the distance from the lens center to the bottom of the image [H] is a negative number, this indicates
that the bottom of the image is below the lens center.
• See page 18 about projection distance [L] and distance from the lens center to the bottom of the image [H].