Screen Size and Projection Distance

x

y z

When using a normal screen (4:3)

In case of setting the 16:9 picture to the full horizontal width of the 4:3 screen.

4

3

: Screen area : Picture area

Screen size (4:3)

Projection distance (y)

Distance from the lens center to

the lower edge of the screen (z)

 

 

 

 

 

Diag. (x)

Width

Height

Maximum (y1)

Minimum (y2)

Upper (z1)

Lower (z2)

250"

200"

150"

41'4" (12.6 m)

30'6" (9.3 m)

0" (0 cm)

–12'6" (–286 cm)

200"

160"

120"

33' (10.1 m)

24'4" (7.4 m)

0" (0 cm)

–10' (–229 cm)

150"

120"

90"

24'9" (7.5 m)

18'3" (5.6 m)

0" (0 cm)

–7'6" (–171 cm)

100"

80"

60"

16'5" (5.0 m)

12'1" (3.7 m)

0" (0 cm)

–5' (–114 cm)

84"

67"

50"

13'9" (4.2 m)

10'2" (3.1 m)

0" (0 cm)

–4'2" (–96 cm)

72"

58"

43"

11'10" (3.6 m)

8'8" (2.6 m)

0" (0 cm)

–3'7" (–82 cm)

60"

48"

36"

9'10" (3.0 m)

7'2" (2.2 m)

0" (0 cm)

–3' (–69 cm)

The formula for screen size and projection distance

y1

(Max.) = (0.05058x – 0.0447) ⋅ 3.28

x : Screen size (diag.) (inches)

y2

(Min.) = (0.03734x – 0.0447) ⋅ 3.28

y : Projection distance (feet)

z1

(Upper) = 0

z : Distance from the lens center to the

z2

(Lower) = –0.45x

lower edge of the screen (feet)

and Connections Setup

When using a wide screen (16:9)

In case of displaying the 16:9 picture on the whole of the 16:9 screen.

16

9

: Picture area

Note

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

•Values with a minus (–) sign indicate the distance of the lens center below the bottom of the screen.

Screen size (16:9)

Projection distance (y)

Distance from the lens center to

the lower edge of the screen (z)

 

 

 

 

 

Diag. (x)

Width

Height

Maximum (y1)

Minimum (y2)

Upper (z1)

Lower (z2)

300"

261"

147"

54'1" (16.5 m)

39'11" (12.2 m)

0" (0 cm)

–12'3" (–374 cm)

250"

218"

123"

45'1" (13.7 m)

33'3" (10.1 m)

0" (0 cm)

–10'3" (–311 cm)

200"

174"

98"

36' (11.0 m)

26'7" (8.1 m)

0" (0 cm)

–8'2" (–249 cm)

150"

131"

74"

26'12" (8.2 m)

19'11" (6.1 m)

0" (0 cm)

–6'2" (–187 cm)

133"

116"

65"

23'11" (7.3 m)

17'7" (5.4 m)

0" (0 cm)

–5'5" (–166 cm)

106"

92"

52"

18'11" (5.8 m)

13'11" (4.3 m)

0" (0 cm)

–4'4" (–131 cm)

100"

87"

49"

17'11" (5.5 m)

13'2" (4.0 m)

0" (0 cm)

–4'1" (–125 cm)

92"

80"

45"

16'5" (5.0 m)

12'1" (3.7 m)

0" (0 cm)

–3'9" (–114 cm)

84"

73"

41"

15' (4.6 m)

11'1" (3.4 m)

0" (0 cm)

–3'5" (–105 cm)

72"

63"

35"

12'10" (3.9 m)

9'6" (2.9 m)

0" (0 cm)

–2'11" (–90 cm)

60"

52"

29"

10'8" (3.3 m)

7'10" (2.4 m)

0" (0 cm)

–2'5" (–75 cm)

40"

35"

20"

7'1" (2.2 m)

5'2" (1.6 m)

0" (0 cm)

–1'8" (–50 cm)

The formula for screen size and projection distance

y1

(Max.) = (0.05510x – 0.04593) ⋅ 3.28

x : Screen size (diag.) (inches)

y2

(Min.) = (0.04068x – 0.04369) ⋅ 3.28

y : Projection distance (feet)

z1

(Upper) = 0

z : Distance from the lens center to the

z2

(Lower) = –0.4904x

lower edge of the screen (feet)

Note

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

•Values with a minus (–) sign indicate the distance of the lens center below the bottom of the screen.

-31