BOXLIGHT PREMIERE 30HD - Manual (Page 25)

23
CONN
EC
TIONS AND SETU
P
Screen Size and Projection Distance
When using a wide
screen (16:9)
In case of displaying the
16:9 picture on the whole
area of the 16:9 screen.
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.
z
x
y
The formula for screen size and projection distance
Screen Size (16:9) Projection Distance
Distance from Lens center to
the lower edge of the image
Diagonal Wide Hight Max Min upper lower
300” 261” 147” 37’2” (11.3 m) 29’8” (9.0 m) 0” (0 cm) -12’3” (-374 cm)
250” 218” 123” 31’ (9.4 m) 24’8” (7.5 m) 0” (0 cm) -10’3” (-311 cm)
200” 174” 98” 24’9” (7.6 m) 19’9” (6.0 m) 0” (0 cm) -8’2” (-249 cm)
150” 131” 74” 18’7” (5.7 m) 14’1” (4.5 m) 0” (0 cm) -6’2” (-187 cm)
133” 116” 65” 16’6” (5.0 m) 13’2” (4.0 m) 0” (0 cm) -5’5” (-166 cm)
106” 92” 52” 13’2” (4.0 m) 10’6” (3.2 m) 0” (0 cm) -4’4” (-132 cm)
100” 87” 49” 12’5” (3.8 m) 9’11” (3.0 m) 0” (0 cm) -4’1” (-125 cm)
92” 80” 45” 11’5” (3.5 m) 9’1” (2.8 m) 0” (0 cm) -3’9” (-115 cm)
84” 73” 41” 10’5” (3.2 m) 8’4” (2.5 m) 0” (0 cm) -3’5” (-105 cm)
72” 63” 35” 8’11” (2.7 m) 7’11” (2.2 m) 0” (0 cm) -2’11” (-90 cm)
60” 52” 29” 7’5” (2.3 m) 5’11” (1.8 m) 0” (0 cm) -2’5” (-75 cm)
40” 35” 20” 4’11” (1.5 m) 3’11” (1.2 m) 0” (0 cm) -1’8” (-50 cm)
y1 (Max.) = 0.037767459x
y2 (Min.) = 0.0301077047x
z1 (Upper) = 0
z2 (Lower) = –1.245264x
x : Screen size (diag.) (meter)
y : Projection distance (feet)
z : Distance from the lens center to the
lower edge of the image (centimeter)
Note
• There is a tolerance of ±3% in the formula above.
• Values with a minus (–) sign indicate the distance of the lens center below
the bottom of the image.
9
16
: Picture area
The formula for screen size and projection distance
Screen Size (4:3) Projection Distance
Distance from Lens center to
the lower edge of the image
Diagonal Wide Hight Max Min upper lower
250” 200” 150” 28’5” (8.7 m) 22’8” (6.9 m) 0” (0 cm) -9’5” (-286 cm)
200” 160” 120” 22’9” (6.9 m) 18’2” (5.5 m) 0” (0 cm) -7’6” (-229 cm)
150” 120” 90” 17’1” (5.2 m) 13’7” (4.1 m) 0” (0 cm) -5’8” (-171 cm)
133” 106” 80” 15’2” (4.6 m) 12’1” (3.7 m) 0” (0 cm) -5’0” (-152 cm)
106” 85” 64” 12’1” (3.7 m) 9’7” (2.9 m) 0” (0 cm) -4’0” (-121 cm)
100” 80” 60” 11’4” (3.5 m) 9’1” (2.8 m) 0” (0 cm) -3’9” (-114 cm)
92” 74” 55” 10’6” (3.2 m) 8’4” (2.5 m) 0” (0 cm) -3’5” (-105 cm)
84” 67” 50” 9’7” (2.9 m) 7’7” (2.3 m) 0” (0 cm) -3’2” (-96 cm)
72” 58” 43” 8’2” (2.5 m) 6’6” (2.0 m) 0” (0 cm) -2’8” (-82 cm)
60” 48” 36” 6’10” (2.1 m) 5’5” (1.7 m) 0” (0 cm) -2’3” (-69 cm)
40” 32” 24” 4’7” (1.4 m) 3’8” (1.1 m) 0” (0 cm) -1’6” (-46 cm)
y1 (Max.) = 0.03466592x
y2 (Min.) = 0.0276352x
z1 (Upper) = 0
z2 (Lower) = -1.143x
x : Screen size (diag.) (meter)
y : Projection distance (feet)
z : Distance from the lens center to the
lower edge of the image (centimeter)
Note
• There is a tolerance of ±3% in the formula above.
• Values with a minus (–) sign indicate the distance of the lens center below
the bottom of the image.
3
4
: Screen area
: Picture area