Adjusting the Projection Distance

Position the projector perpendicular to the screen with all feet flat and leveled to achieve an optimal image. Move the projector forward or backward if the edges of the image are distorted.

Connections

•The projector lens should be centered in the middle of the screen. If the lens center is not perpendicular to the screen, the image will be distorted, making viewing difficult.

•Position the screen so that it is not in direct sunlight or room light. Light falling directly onto the screen washes out colors, making viewing difficult. Close the curtains and dim the lights when setting up the screen in a sunny or bright room.

•A polarizing screen cannot be used with this projector.

&Setup

Standard Setup (Front Projection)

Place the projector at the required distance from the screen according to the desired screen size. (See the tables below.)

The figures in the tables are based upon projecting an image so that it occupies the entire screen.

Center of the screen

 

Placement range as determined

x

 

by Keystone correction

 

 

 

 

 

 

 

 

 

 

 

C.

v

 

 

 

 

 

 

 

 

 

B'.

 

 

0.15y

B.

 

C.

 

 

 

0.1y

 

z

 

B.

 

A.

 

h

 

V

 

-

 

 

y

-

-

0.1y 0.2y

0.3y

 

 

 

 

 

 

 

 

 

-

 

B'.

 

 

 

 

-0.15y

 

A.

 

 

 

C'.

[Fig. 1]

 

 

 

 

 

 

 

 

 

 

 

 

A. Standard placement range

 

 

 

 

C'.

B.B'. Maximum horizontal placement range

 

 

C.C'. Maximum vertical placement range

 

 

 

 

 

 

When using a normal

Screen size (4:3)

 

Projection distance and Keystone correction

 

 

Distance from the lens center to

screen (4:3)

 

 

 

the bottom edge of the image (z)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

Diag. (x)

Width

Height

Maximum (y1)

Maximum horizontal

Maximum vertical

Minimum (y2)

Maximum horizontal

Maximum vertical

Upper (z1)

Lower (z2)

 

placement range (h)

placement range (v)

placement range (h)

placement range (v)

 

 

 

 

200"

160"

120"

 

 

–

 

 

33'9" (10.3 m)

10' 5"

(3.18m)

5' 10" (1.79m)

0" (0 cm)

–10' (–304.8 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

150"

120"

90"

30'5" (9.3 m)

9' 5"

(2.86m)

5' 3"

(1.61m)

25'4" (7.7 m)

7' 10"

(2.38m)

4' 5"

(1.34m)

0" (0 cm)

–7'6" (–228.6 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100"

80"

60"

20'3" (6.2 m)

6' 3"

(1.91m)

3' 6"

(1.07m)

16'10" (5.1 m)

5' 2"

(1.59m)

2' 11" (0.89m)

0" (0 cm)

–5' (–152.4 cm)

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

84"

67"

50"

16'12" (5.2 m)

5' 3"

(1.60m)

2' 11"

(0.90m)

14'1" (4.3 m)

4' 4"

(1.33m)

2' 5"

(0.75m)

0" (0 cm)

–4'2" (–128.0 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72"

58"

43"

14'6" (4.4 m)

4' 6"

(1.37m)

2' 6"

(0.77m)

12'1" (3.7 m)

3' 9"

(1.14m)

2' 1"

(0.64m)

0" (0 cm)

–3'7" (–109.7 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60"

48"

36"

12'1" (3.7 m)

3' 9"

(1.14m)

2' 1"

(0.64m)

10'1" (3.1 m)

3' 1"

(.95m)

1' 9"

(0.53m)

0" (0 cm)

–3' (–91.4 cm)

 

 

: Screen area

40"

32"

24"

8' (2.4 m)

2' 6"

(0.75m)

1' 5"

(0.42m)

6'8" (2.0 m)

2' 1"

(0.63m)

1' 2"

(0.35m)

0" (0 cm)

–2' (–61.0 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When using a wide screen (16:9)

16

9

: Picture area

: Area covered by the projection panel of the projector*

The formula for screen size and projection distance

y1

(Max.) =(0.062085x

– 0.038555) / 0.3048

x : Screen size (diag.) (inches)

y2

(Min.) = (0.051672x

– 0.038495) / 0.3048

y : Projection distance (feet)

z1

(Upper) = 0

h : 0.309y

z : Distance from the lens center to the lower

z2

(Lower) = –0.6x

v : 0.174y

edge of the screen (feet)

•There is an error of ± 3% in the formula above.

•The values of horizontal and vertical values may be limited when Keystone correction is applied simultaneously in the horizontal and vertical directions. (See the diagram [fig. 1] above.)

Screen size (16:9)

 

Projection distance and Keystone correction

 

 

Distance from the lens center to

 

 

 

the bottom edge of the image (z)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diag. (x)

Width

Height

Maximum (y1)

Maximum horizontal

Maximum vertical

Minimum (y2)

Maximum horizontal

Maximum vertical

Upper (z1)

Lower (z2)

placement range (h)

placement range (v)

placement range (h)

placement range (v)

200"

174"

98"

 

 

–

 

 

36'10"

(11.2 m)

11' 4"

(3.46m)

6' 5"

(1.94m)

1'4" (41.5 cm)

–9'6" (–290.6 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

150"

131"

74"

33'2" (10.1 m)

10' 3"

(3.12m)

5' 9"

(1.75m)

27'7"

(8.4 m)

8' 6"

(2.60m)

4' 9"

(1.46m)

1' (31.1 cm)

–7'2" (–271.9 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

133"

116"

65"

29'5" (9.0 m)

9' 1"

(2.78m)

5' 2"

(1.56m)

24'5"

(7.4 m)

7' 6"

(2.29m)

4' 3"

(1.28m)

11" (27.6 cm)

–6'4" (–193.2 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

106"

92"

52"

23'5" (7.1 m)

7' 2"

(2.19m)

4' 1"

(1.23m)

19'5"

(5.9 m)

5' 12" (1.82m)

3' 4"

(1.02m)

9" (22.0 cm)

–5'1" (–154.0 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100"

87"

49"

22'1" (6.7 m)

6' 10" (2.07m)

3' 10"

(1.16m)

18'4"

(5.6 m)

5' 8"

(1.73m)

3' 2"

(0.97m)

8" (20.8 cm)

–4'9" (–145.3 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

92"

80"

45"

20'3" (6.2 m)

6' 3"

(1.92m)

3' 6"

(1.08m)

16'10" (5.1 m)

5' 2"

(1.58m)

2' 11" (0.89m)

8" (19.1 cm)

–4'5" (–133.7 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

84"

73"

41"

18'6"(5.6 m)

5' 8"

(1.73m)

3' 2"

(0.97m)

15'5"

(4.7 m)

4' 9"

(1.45m)

2' 8"

(0.82m)

7" (17.4 cm)

–4' (–122.0 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72"

63"

35"

15'10"(4.8 m)

4' 10" (1.48m)

2' 9"

(0.83m)

13'2"

(4.0 m)

4' 1"

(1.24m)

2' 3"

(0.69m)

6" (14.9 cm)

–3'5" (–104.6 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60"

52"

29"

13'2"(4.0 m)

4' 1"

(1.24m)

2' 3"

(0.69m)

10'11" (3.3 m)

3' 4"

(1.02m)

1' 11" (0.57m)

5" (12.5 cm)

–2'10" (–87.2 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40"

35"

20"

8'9"(2.7 m)

2' 9"

(0.83m)

1' 6"

(0.47m)

7'3" (2.2 m)

2' 3"

(0.68m)

1' 3"

(0.38m)

3" (8.3 cm)

–1'11" (–58.1 cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The formula for screen size and projection distance

y1

(Max.) = (0.06764x – 0.038555) / 0.3048

x : Screen size (diag.) (inches)

y2

(Min.) = (0.056295x

– 0.038495) / 0.3048

y : Projection distance (feet)

z1

(Upper) = 0.08171x

h : 0.309y

z : Distance from the lens center to the lower

z2

(Lower) = –0.57197x

v : 0.174y

edge of the screen (feet)

•There is an error of ± 3% in the formula above.

•The values of horizontal and vertical values may be limited when Keystone correction is applied simultaneously in the horizontal and vertical directions. (See the diagram [fig. 1] above.)

E-21