Adjusting the Screen Size and Projection Distance

Refer to the illustrations and tables below to determine the screen size and projection distance.

The values shown in the table are calculated for a full size screen

a:Distance from the projector to the screen (±10%)

b:Distance from the lens center to the bottom of the screen (±10%) c:Distance from the lens center to the top of the screen (±10%)

ENGLISH

The screen

c

Lens center

b

a

The screen

c

Lens center

 

b

a

Top view

Side view

Top view

Side view

If 4:3 aspect ratio

4

3

Screen Size [inch (m)]

a [inch (m)]

 

b

c

 

Min.

Max.

[inch (cm)]

[inch (cm)]

30 (0.8)

35 (0.9)

42 (1.1)

1

(2)

17 (44)

40 (1.0)

47 (1.2)

56 (1.4)

1

(3)

23 (58)

50 (1.3)

59 (1.5)

71 (1.8)

1

(4)

29 (73)

60 (1.5)

71 (1.8)

85 (2.2)

2

(4)

34 (87)

70 (1.8)

83 (2.1)

100 (2.5)

2

(5)

40 (102)

80 (2.0)

95 (2.4)

114 (2.9)

2

(6)

46 (116)

90 (2.3)

107 (2.7)

129 (3.3)

3

(7)

51 (131)

100 (2.5)

119 (3.0)

143 (3.6)

3

(7)

57 (145)

120 (3.0)

143 (3.6)

172 (4.4)

3

(9)

69 (174)

150 (3.8)

180 (4.6)

216 (5.5)

4

(11)

86 (218)

200 (5.0)

240 (6.1)

288 (7.3)

6

(15)

114 (290)

250 (6.3)

300 (7.6)

361 (9.2)

7

(18)

143 (363)

300 (7.5)

360 (9.2)

433 (11.0)

9

(22)

171 (435)

If 16:9 aspect ratio

16

9

Screen Size [inch (m)]

a [inch (m)]

 

b

c

 

Min.

Max.

[inch (cm)]

[inch (cm)]

30 (0.8)

38 (1.0)

46 (1.2)

2

(4)

16 (41)

40 (1.0)

51 (1.3)

61 (1.6)

2

(5)

22 (55)

50 (1.3)

64 (1.6)

77 (2.0)

3

(6)

27 (69)

60 (1.5)

77 (2.0)

93 (2.4)

3

(8)

32 (82)

70 (1.8)

90 (2.3)

109 (2.8)

4

(9)

38 (96)

80 (2.0)

104 (2.6)

125 (3.2)

4 (10)

43 (110)

90 (2.3)

117 (3.0)

140 (3.6)

5 (12)

49 (124)

100 (2.5)

130 (3.3)

156 (4.0)

5 (13)

54 (137)

120 (3.0)

156 (4.0)

188 (4.8)

6 (15)

65 (165)

150 (3.8)

196 (5.0)

235 (6.0)

8 (19)

81 (206)

200 (5.0)

261 (6.6)

314 (8.0)

10

(26)

108 (275)

250 (6.3)

327 (8.3)

393 (10.0)

13

(32)

135 (343)

300 (7.5)

393 (10.0)

472 (12.0)

15

(39)

162 (412)

7

Page 17
Image 17
Dukane 28A8049A, 28A8755A user manual Adjusting the Screen Size and Projection Distance, If 43 aspect ratio